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Set up Arch Linux ARM on Raspberry Pi to boot from and use a read-only file-system

Read-only FS on Arch Linux ARM

Unlike your typical computer where you usually shutdown properly, I cannot rely on this during the use of my Raspberry Pi. If the Raspberry Pi is improperly shutdown too many times, data corruption in the file system leading to unbootable SD card may result. So we should use a read-only file system.

Full instructions and explanations are obtained from this link but you can run these commands directly. I modified some of the instructions for personal convenience.

Login with default username: alarm, password: alarm

#Optionally enable root over SSH. The rest of these instructions assume u are in root.
su
nano /etc/ssh/sshd_config
#Add "PermitRootLogin yes" to the Authentication section after "#PermitRootLogin prohibit-password" then save
reboot

#Login as root


#Update everything first, remove cache then reboot to detect problems
pacman -Syu  
# Delete certs if you see a message like "/etc/ssl/certs/ca-certificates.crt exists in filesystem" then rerun pacman -Syu
rm /etc/ssl/certs/ca-certificates.crt
#May be needed if the pacman version has changed during the update
pacman-db-upgrade
#Optional if you want to clear the cache
pacman -Sc
reboot

#Change timezone (optional)
rm /etc/localtime
ln -s /usr/share/zoneinfo/Asia/Singapore /etc/localtime

#Relocate DNS cache (This step causes DNS problems on the latest Arch Linux ARM kernels so skip this)
#rm /etc/resolv.conf
#ln -s /tmp/resolv.conf /etc/resolv.conf

#Adjust /etc/fstab, add/modify to the following hashed lines. Mount certain directories to RAM disk.
nano /etc/fstab
#Add the following lines up to the #end. Include the first commented line in case you have to set to write enabled next time.
#/dev/mmcblk0p1  /boot           vfat    defaults        0       0
/dev/mmcblk0p1  /boot   vfat    defaults,ro,errors=remount-ro        0       0
tmpfs   /var/log    tmpfs   nodev,nosuid    0   0
tmpfs   /var/tmp    tmpfs   nodev,nosuid    0   0
#end

#Adjust journald service to not log the system log to prevent flooding of the /var/log folder
nano /etc/systemd/journald.conf
#Uncomment and set "Storage=none"

#To mount / partition as read-only
nano /boot/cmdline.txt
#Replace the "rw" flag with the "ro" flag right after the root= parameter.

#Disable systemd services
#systemctl disable systemd-readahead-collect #Not working now
systemctl disable systemd-random-seed
#systemctl disable ntpd #Not working now

#Put shortcut shell scripts to re-enable read-write temporarily if needed
printf "mount -o remount,rw /\nmount -o remount,rw /boot" > writeenable.sh
printf "mount -o remount,ro /\nmount -o remount,ro /boot" > readonly.sh
chmod 500 writeenable.sh
chmod 500 readonly.sh

#Change your password if needed (Optional)
"passwd root" or "passwd alarm" 

#Remove history
history -c -w

reboot

To enable read-write temporarily to do say an update, just run ./writeenable.sh.

References

  1. Read-only file system
@kshishkin

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kshishkin commented Jan 31, 2016

I'm thinking about these two lines:
tmpfs /var/log tmpfs nodev,nosuid 0 0
tmpfs /var/tmp tmpfs nodev,nosuid 0 0

Instead I'm considering:
tmpfs /run tmpfs nodev,nosuid 0 0
tmpfs /tmp tmpfs nodev,nosuid 0 0

At the same time I'm planning to keep whole /var /srv /home on separate partition(s).
What do you think about it? I'd appreciate your opinion as I'm making baby steps in this area.

@yeokm1

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yeokm1 commented Feb 6, 2016

I'm not an expert myself too also :) .

Anyway, based on what I understand from Googling fstab and tmpfs, /tmp and /run are already on tmpfs on Arch Linux by default so we don't need to specify this in /etc/fstab.

On the other hand, /var/tmp and /var/log are not so we have to do the relocation. /tmp and /var/tmp are not exactly the same thing, the former is meant to be truly temporary, the latter is meant to survive across reboots.

I'm not sure about putting the whole /var /srv on other partitions. /home is possible to be on another partition, I have tried before.

@tyriis

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tyriis commented Apr 27, 2016

i use this setup, but i run into host unreachable after about 1 hour any idea anyone?

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yeokm1 commented May 3, 2016

@tyrils, can I have more details about this? For example, what version of Raspberry Pi are you using, is it over Wifi or Ethernet?

What commands are you using? Which host is unreachable? The Raspberry Pi cannot contact another host or another host cannot contact the RPi?

@polmon

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polmon commented May 17, 2016

@yeokm1, I have the same issue as tyriis. Im continuously pinging the pi from my pc and after a certain time(usually >4 hrs) the pi becomes unreachable. At this time my screen also blanks out. There are several posts about lightdm not being able to run on a read only file system. I believe the display blanking out could be related to that but what stumps me is that this issue always happens after at least 4 hrs of up time.

Here is my setup(borrowed mostly from https://narcisocerezo.wordpress.com/2014/06/25/create-a-robust-raspberry-pi-setup-for-24x7-operation/)

  1. Raspberry Pi 2 running a Qt application
  2. File system is setup as read only with the following commands in /etc/fstab
    proc /proc proc defaults 0 0
    /dev/mmcblk06 /boot vfat defaults,ro 0 2
    /dev/mmcblk07 / ext4 defaults,noatime,ro 0 1
    tmpfs /tmp tmpfs defaults,noatime,mode=1777 0 0
    tmpfs /var/log tmpfs defaults,noatime,mode=0755 0 0
    tmpfs /var/lib/systemd tmpfs defaults,noatime,mode=0755 0 0
    tmpfs /run tmpfs defaults,noatime,mode=0755 0 0
    tmpfs /var/lib/lightdm tmpfs defaults,noatime,nosuid,size=30m 0 0
  3. I have disabled swap using
    $ sudo update-rc.d -f dphys-swapfile remove
    $ sudo swapoff /var/swap
    $ sudo rm /var/swap

The following settings may not be relevant to the issues but im posting them anyway for the sake of completeness.

  1. Edit /etc/cron.hourly/fake-hwclock and put an exit 0 command at the beginning.
  2. Modify /etc/cron.daily/logrotate, adding –state /var/log/logrotate.state to the command line, so it ends up like:
    #!/bin/sh

test -x /usr/sbin/logrotate || exit 0
/usr/sbin/logrotate --state /var/log/logrotate.state /etc/logrotate.conf
3. Disable man-db indexing and fake-hw clock.

So far i have been unable to look at the logs to see what is causing the error because i mounted /var/log on tmpfs. I have since redirected the logs to a usb drive. I am now waiting for the failure to occur. I will post the logs as soon as i have them.

If you have seen this issue before, please point me in the right direction.

Anvesh

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polmon commented May 18, 2016

Attaching kernlog
`May 11 10:07:09 raspberrypi kernel: [ 0.000000] Booting Linux on physical CPU 0xf00
May 11 10:07:09 raspberrypi kernel: [ 0.000000] Initializing cgroup subsys cpuset
May 11 10:07:09 raspberrypi kernel: [ 0.000000] Initializing cgroup subsys cpu
May 11 10:07:09 raspberrypi kernel: [ 0.000000] Initializing cgroup subsys cpuacct
May 11 10:07:09 raspberrypi kernel: [ 0.000000] Linux version 4.1.19-v7+ (dc4@dc4-XPS13-9333) (gcc version 4.9.3 (crosstool-NG crosstool-ng-1.22.0-88-g8460611) ) #858 SMP Tue Mar 15 15:56:00 GMT 2016
May 11 10:07:09 raspberrypi kernel: [ 0.000000] CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
May 11 10:07:09 raspberrypi kernel: [ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
May 11 10:07:09 raspberrypi kernel: [ 0.000000] Machine model: Raspberry Pi 2 Model B Rev 1.1
May 11 10:07:09 raspberrypi kernel: [ 0.000000] cma: Reserved 8 MiB at 0x3a400000
May 11 10:07:09 raspberrypi kernel: [ 0.000000] Memory policy: Data cache writealloc
May 11 10:07:09 raspberrypi kernel: [ 0.000000] On node 0 totalpages: 241664
May 11 10:07:09 raspberrypi kernel: [ 0.000000] free_area_init_node: node 0, pgdat 80880fc0, node_mem_map b9bb4000
May 11 10:07:09 raspberrypi kernel: [ 0.000000] Normal zone: 2124 pages used for memmap
May 11 10:07:09 raspberrypi kernel: [ 0.000000] Normal zone: 0 pages reserved
May 11 10:07:09 raspberrypi kernel: [ 0.000000] Normal zone: 241664 pages, LIFO batch:31
May 11 10:07:09 raspberrypi kernel: [ 0.000000] [bcm2709_smp_init_cpus] enter (9420->f3003010)
May 11 10:07:09 raspberrypi kernel: [ 0.000000] [bcm2709_smp_init_cpus] ncores=4
May 11 10:07:09 raspberrypi kernel: [ 0.000000] PERCPU: Embedded 12 pages/cpu @bafb1000 s20416 r8192 d20544 u49152
May 11 10:07:09 raspberrypi kernel: [ 0.000000] pcpu-alloc: s20416 r8192 d20544 u49152 alloc=12_4096
May 11 10:07:09 raspberrypi kernel: [ 0.000000] pcpu-alloc: [0] 0 [0] 1 [0] 2 [0] 3
May 11 10:07:09 raspberrypi kernel: [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 239540
May 11 10:07:09 raspberrypi kernel: [ 0.000000] Kernel command line: dma.dmachans=0x7f35 bcm2708_fb.fbwidth=800 bcm2708_fb.fbheight=480 bcm2709.boardrev=0xa21041 bcm2709.serial=0x987ffb44 smsc95xx.macaddr=B8:27:EB:7F:FB:44 bcm2708_fb.fbswap=1 bcm2709.uart_clock=3000000 bcm2709.disk_led_gpio=47 bcm2709.disk_led_active_low=0 vc_mem.mem_base=0x3dc00000 vc_mem.mem_size=0x3f000000 dwc_otg.lpm_enable=0 console=tty1 root=/dev/mmcblk0p7 rootfstype=ext4 elevator=deadline fsck.repair=yes rootwait quiet
May 11 10:07:09 raspberrypi kernel: [ 0.000000] PID hash table entries: 4096 (order: 2, 16384 bytes)
May 11 10:07:09 raspberrypi kernel: [ 0.000000] Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
May 11 10:07:09 raspberrypi kernel: [ 0.000000] Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
May 11 10:07:09 raspberrypi kernel: [ 0.000000] Memory: 939380K/966656K available (6064K kernel code, 534K rwdata, 1664K rodata, 444K init, 757K bss, 19084K reserved, 8192K cma-reserved)
May 11 10:07:09 raspberrypi kernel: [ 0.000000] Virtual kernel memory layout:
May 11 10:07:09 raspberrypi kernel: [ 0.000000] vector : 0xffff0000 - 0xffff1000 ( 4 kB)
May 11 10:07:09 raspberrypi kernel: [ 0.000000] fixmap : 0xffc00000 - 0xfff00000 (3072 kB)
May 11 10:07:09 raspberrypi kernel: [ 0.000000] vmalloc : 0xbb800000 - 0xff000000 (1080 MB)
May 11 10:07:09 raspberrypi kernel: [ 0.000000] lowmem : 0x80000000 - 0xbb000000 ( 944 MB)
May 11 10:07:09 raspberrypi kernel: [ 0.000000] modules : 0x7f000000 - 0x80000000 ( 16 MB)
May 11 10:07:09 raspberrypi kernel: [ 0.000000] .text : 0x80008000 - 0x807945f0 (7730 kB)
May 11 10:07:09 raspberrypi kernel: [ 0.000000] .init : 0x80795000 - 0x80804000 ( 444 kB)
May 11 10:07:09 raspberrypi kernel: [ 0.000000] .data : 0x80804000 - 0x80889b10 ( 535 kB)
May 11 10:07:09 raspberrypi kernel: [ 0.000000] .bss : 0x8088c000 - 0x809497dc ( 758 kB)
May 11 10:07:09 raspberrypi kernel: [ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1
May 11 10:07:09 raspberrypi kernel: [ 0.000000] Hierarchical RCU implementation.
May 11 10:07:09 raspberrypi kernel: [ 0.000000] Additional per-CPU info printed with stalls.
May 11 10:07:09 raspberrypi kernel: [ 0.000000] NR_IRQS:608
May 11 10:07:09 raspberrypi kernel: [ 0.000000] Architected cp15 timer(s) running at 19.20MHz (phys).
May 11 10:07:09 raspberrypi kernel: [ 0.000000] clocksource arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0x46d987e47, max_idle_ns: 440795202767 ns
May 11 10:07:09 raspberrypi kernel: [ 0.000011] sched_clock: 56 bits at 19MHz, resolution 52ns, wraps every 4398046511078ns
May 11 10:07:09 raspberrypi kernel: [ 0.000033] Switching to timer-based delay loop, resolution 52ns
May 11 10:07:09 raspberrypi kernel: [ 0.000316] Console: colour dummy device 80x30
May 11 10:07:09 raspberrypi kernel: [ 0.000551] console [tty1] enabled
May 11 10:07:09 raspberrypi kernel: [ 0.000586] Calibrating delay loop (skipped), value calculated using timer frequency.. 38.40 BogoMIPS (lpj=192000)
May 11 10:07:09 raspberrypi kernel: [ 0.000611] pid_max: default: 32768 minimum: 301
May 11 10:07:09 raspberrypi kernel: [ 0.000965] Mount-cache hash table entries: 2048 (order: 1, 8192 bytes)
May 11 10:07:09 raspberrypi kernel: [ 0.000987] Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes)
May 11 10:07:09 raspberrypi kernel: [ 0.002234] Initializing cgroup subsys blkio
May 11 10:07:09 raspberrypi kernel: [ 0.002279] Initializing cgroup subsys memory
May 11 10:07:09 raspberrypi kernel: [ 0.002312] Initializing cgroup subsys devices
May 11 10:07:09 raspberrypi kernel: [ 0.002339] Initializing cgroup subsys freezer
May 11 10:07:09 raspberrypi kernel: [ 0.002379] Initializing cgroup subsys net_cls
May 11 10:07:09 raspberrypi kernel: [ 0.002450] CPU: Testing write buffer coherency: ok
May 11 10:07:09 raspberrypi kernel: [ 0.002537] ftrace: allocating 20313 entries in 60 pages
May 11 10:07:09 raspberrypi kernel: [ 0.051552] CPU0: update cpu_capacity 1024
May 11 10:07:09 raspberrypi kernel: [ 0.051589] CPU0: thread -1, cpu 0, socket 15, mpidr 80000f00
May 11 10:07:09 raspberrypi kernel: [ 0.051606] [bcm2709_smp_prepare_cpus] enter
May 11 10:07:09 raspberrypi kernel: [ 0.051743] Setting up static identity map for 0x8240 - 0x8274
May 11 10:07:09 raspberrypi kernel: [ 0.054230] [bcm2709_boot_secondary] cpu:1 started (0) 18
May 11 10:07:09 raspberrypi kernel: [ 0.054671] [bcm2709_secondary_init] enter cpu:1
May 11 10:07:09 raspberrypi kernel: [ 0.054729] CPU1: update cpu_capacity 1024
May 11 10:07:09 raspberrypi kernel: [ 0.054738] CPU1: thread -1, cpu 1, socket 15, mpidr 80000f01
May 11 10:07:09 raspberrypi kernel: [ 0.055322] [bcm2709_boot_secondary] cpu:2 started (0) 18
May 11 10:07:09 raspberrypi kernel: [ 0.055678] [bcm2709_secondary_init] enter cpu:2
May 11 10:07:09 raspberrypi kernel: [ 0.055710] CPU2: update cpu_capacity 1024
May 11 10:07:09 raspberrypi kernel: [ 0.055719] CPU2: thread -1, cpu 2, socket 15, mpidr 80000f02
May 11 10:07:09 raspberrypi kernel: [ 0.056263] [bcm2709_boot_secondary] cpu:3 started (0) 18
May 11 10:07:09 raspberrypi kernel: [ 0.056518] [bcm2709_secondary_init] enter cpu:3
May 11 10:07:09 raspberrypi kernel: [ 0.056547] CPU3: update cpu_capacity 1024
May 11 10:07:09 raspberrypi kernel: [ 0.056555] CPU3: thread -1, cpu 3, socket 15, mpidr 80000f03
May 11 10:07:09 raspberrypi kernel: [ 0.056644] Brought up 4 CPUs
May 11 10:07:09 raspberrypi kernel: [ 0.056674] SMP: Total of 4 processors activated (153.60 BogoMIPS).
May 11 10:07:09 raspberrypi kernel: [ 0.056684] CPU: All CPU(s) started in HYP mode.
May 11 10:07:09 raspberrypi kernel: [ 0.056693] CPU: Virtualization extensions available.
May 11 10:07:09 raspberrypi kernel: [ 0.057702] devtmpfs: initialized
May 11 10:07:09 raspberrypi kernel: [ 0.081383] VFP support v0.3: implementor 41 architecture 2 part 30 variant 7 rev 5
May 11 10:07:09 raspberrypi kernel: [ 0.081682] clocksource jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
May 11 10:07:09 raspberrypi kernel: [ 0.082865] pinctrl core: initialized pinctrl subsystem
May 11 10:07:09 raspberrypi kernel: [ 0.083651] NET: Registered protocol family 16
May 11 10:07:09 raspberrypi kernel: [ 0.089333] DMA: preallocated 4096 KiB pool for atomic coherent allocations
May 11 10:07:09 raspberrypi kernel: [ 0.090509] bcm2709.uart_clock = 3000000
May 11 10:07:09 raspberrypi kernel: [ 0.095565] hw-breakpoint: found 5 (+1 reserved) breakpoint and 4 watchpoint registers.
May 11 10:07:09 raspberrypi kernel: [ 0.095585] hw-breakpoint: maximum watchpoint size is 8 bytes.
May 11 10:07:09 raspberrypi kernel: [ 0.095782] Serial: AMBA PL011 UART driver
May 11 10:07:09 raspberrypi kernel: [ 0.095978] 3f201000.uart: ttyAMA0 at MMIO 0x3f201000 (irq = 83, base_baud = 0) is a PL011 rev2
May 11 10:07:09 raspberrypi kernel: [ 0.096545] bcm2835-mbox 3f00b880.mailbox: mailbox enabled
May 11 10:07:09 raspberrypi kernel: [ 0.172817] bcm2708-dmaengine 3f007000.dma: DMA legacy API manager at f3007000, dmachans=0xf35
May 11 10:07:09 raspberrypi kernel: [ 0.172865] bcm2708-dmaengine 3f007000.dma: Initialized 7 DMA channels (+ 1 legacy)
May 11 10:07:09 raspberrypi kernel: [ 0.173569] bcm2708-dmaengine 3f007000.dma: Load BCM2835 DMA engine driver
May 11 10:07:09 raspberrypi kernel: [ 0.173587] bcm2708-dmaengine 3f007000.dma: dma_debug:0
May 11 10:07:09 raspberrypi kernel: [ 0.174320] SCSI subsystem initialized
May 11 10:07:09 raspberrypi kernel: [ 0.174567] usbcore: registered new interface driver usbfs
May 11 10:07:09 raspberrypi kernel: [ 0.174678] usbcore: registered new interface driver hub
May 11 10:07:09 raspberrypi kernel: [ 0.174832] usbcore: registered new device driver usb
May 11 10:07:09 raspberrypi kernel: [ 0.175549] raspberrypi-firmware soc:firmware: Attached to firmware from 2016-03-15 14:47
May 11 10:07:09 raspberrypi kernel: [ 0.202872] Switched to clocksource arch_sys_counter
May 11 10:07:09 raspberrypi kernel: [ 0.251681] FS-Cache: Loaded
May 11 10:07:09 raspberrypi kernel: [ 0.252096] CacheFiles: Loaded
May 11 10:07:09 raspberrypi kernel: [ 0.265191] NET: Registered protocol family 2
May 11 10:07:09 raspberrypi kernel: [ 0.266559] TCP established hash table entries: 8192 (order: 3, 32768 bytes)
May 11 10:07:09 raspberrypi kernel: [ 0.266701] TCP bind hash table entries: 8192 (order: 4, 65536 bytes)
May 11 10:07:09 raspberrypi kernel: [ 0.266895] TCP: Hash tables configured (established 8192 bind 8192)
May 11 10:07:09 raspberrypi kernel: [ 0.267018] UDP hash table entries: 512 (order: 2, 16384 bytes)
May 11 10:07:09 raspberrypi kernel: [ 0.267082] UDP-Lite hash table entries: 512 (order: 2, 16384 bytes)
May 11 10:07:09 raspberrypi kernel: [ 0.267560] NET: Registered protocol family 1
May 11 10:07:09 raspberrypi kernel: [ 0.268020] RPC: Registered named UNIX socket transport module.
May 11 10:07:09 raspberrypi kernel: [ 0.268036] RPC: Registered udp transport module.
May 11 10:07:09 raspberrypi kernel: [ 0.268047] RPC: Registered tcp transport module.
May 11 10:07:09 raspberrypi kernel: [ 0.268058] RPC: Registered tcp NFSv4.1 backchannel transport module.
May 11 10:07:09 raspberrypi kernel: [ 0.269182] hw perfevents: enabled with armv7_cortex_a7 PMU driver, 5 counters available
May 11 10:07:09 raspberrypi kernel: [ 0.270548] futex hash table entries: 1024 (order: 4, 65536 bytes)
May 11 10:07:09 raspberrypi kernel: [ 0.286844] VFS: Disk quotas dquot_6.6.0
May 11 10:07:09 raspberrypi kernel: [ 0.287230] VFS: Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
May 11 10:07:09 raspberrypi kernel: [ 0.289759] FS-Cache: Netfs 'nfs' registered for caching
May 11 10:07:09 raspberrypi kernel: [ 0.290956] NFS: Registering the id_resolver key type
May 11 10:07:09 raspberrypi kernel: [ 0.291052] Key type id_resolver registered
May 11 10:07:09 raspberrypi kernel: [ 0.291065] Key type id_legacy registered
May 11 10:07:09 raspberrypi kernel: [ 0.293869] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 252)
May 11 10:07:09 raspberrypi kernel: [ 0.294061] io scheduler noop registered
May 11 10:07:09 raspberrypi kernel: [ 0.294087] io scheduler deadline registered (default)
May 11 10:07:09 raspberrypi kernel: [ 0.294421] io scheduler cfq registered
May 11 10:07:09 raspberrypi kernel: [ 0.296987] BCM2708FB: allocated DMA memory fa800000
May 11 10:07:09 raspberrypi kernel: [ 0.297047] BCM2708FB: allocated DMA channel 0 @ f3007000
May 11 10:07:09 raspberrypi kernel: [ 0.304473] Console: switching to colour frame buffer device 100x30
May 11 10:07:09 raspberrypi kernel: [ 0.309097] Serial: 8250/16550 driver, 0 ports, IRQ sharing disabled
May 11 10:07:09 raspberrypi kernel: [ 0.310348] vc-cma: Videocore CMA driver
May 11 10:07:09 raspberrypi kernel: [ 0.310363] vc-cma: vc_cma_base = 0x00000000
May 11 10:07:09 raspberrypi kernel: [ 0.310374] vc-cma: vc_cma_size = 0x00000000 (0 MiB)
May 11 10:07:09 raspberrypi kernel: [ 0.310385] vc-cma: vc_cma_initial = 0x00000000 (0 MiB)
May 11 10:07:09 raspberrypi kernel: [ 0.310629] vc-mem: phys_addr:0x00000000 mem_base=0x3dc00000 mem_size:0x3f000000(1008 MiB)
May 11 10:07:09 raspberrypi kernel: [ 0.326648] brd: module loaded
May 11 10:07:09 raspberrypi kernel: [ 0.335723] loop: module loaded
May 11 10:07:09 raspberrypi kernel: [ 0.336730] vchiq: vchiq_init_state: slot_zero = 0xba880000, is_master = 0
May 11 10:07:09 raspberrypi kernel: [ 0.338524] Loading iSCSI transport class v2.0-870.
May 11 10:07:09 raspberrypi kernel: [ 0.339426] usbcore: registered new interface driver smsc95xx
May 11 10:07:09 raspberrypi kernel: [ 0.339500] dwc_otg: version 3.00a 10-AUG-2012 (platform bus)
May 11 10:07:09 raspberrypi kernel: [ 0.539886] Core Release: 2.80a
May 11 10:07:09 raspberrypi kernel: [ 0.539907] Setting default values for core params
May 11 10:07:09 raspberrypi kernel: [ 0.539952] Finished setting default values for core params
May 11 10:07:09 raspberrypi kernel: [ 0.740373] Using Buffer DMA mode
May 11 10:07:09 raspberrypi kernel: [ 0.740389] Periodic Transfer Interrupt Enhancement - disabled
May 11 10:07:09 raspberrypi kernel: [ 0.740400] Multiprocessor Interrupt Enhancement - disabled
May 11 10:07:09 raspberrypi kernel: [ 0.740412] OTG VER PARAM: 0, OTG VER FLAG: 0
May 11 10:07:09 raspberrypi kernel: [ 0.740431] Dedicated Tx FIFOs mode
May 11 10:07:09 raspberrypi kernel: [ 0.740812] WARN::dwc_otg_hcd_init:1047: FIQ DMA bounce buffers: virt = 0xba814000 dma = 0xfa814000 len=9024
May 11 10:07:09 raspberrypi kernel: [ 0.740851] FIQ FSM acceleration enabled for :
May 11 10:07:09 raspberrypi kernel: [ 0.740851] Non-periodic Split Transactions
May 11 10:07:09 raspberrypi kernel: [ 0.740851] Periodic Split Transactions
May 11 10:07:09 raspberrypi kernel: [ 0.740851] High-Speed Isochronous Endpoints
May 11 10:07:09 raspberrypi kernel: [ 0.740877] dwc_otg: Microframe scheduler enabled
May 11 10:07:09 raspberrypi kernel: [ 0.740935] WARN::hcd_init_fiq:412: FIQ on core 1 at 0x80417288
May 11 10:07:09 raspberrypi kernel: [ 0.740953] WARN::hcd_init_fiq:413: FIQ ASM at 0x804175f8 length 36
May 11 10:07:09 raspberrypi kernel: [ 0.740971] WARN::hcd_init_fiq:438: MPHI regs_base at 0xbb89a000
May 11 10:07:09 raspberrypi kernel: [ 0.741016] dwc_otg 3f980000.usb: DWC OTG Controller
May 11 10:07:09 raspberrypi kernel: [ 0.741064] dwc_otg 3f980000.usb: new USB bus registered, assigned bus number 1
May 11 10:07:09 raspberrypi kernel: [ 0.741110] dwc_otg 3f980000.usb: irq 32, io mem 0x00000000
May 11 10:07:09 raspberrypi kernel: [ 0.741164] Init: Port Power? op_state=1
May 11 10:07:09 raspberrypi kernel: [ 0.741175] Init: Power Port (0)
May 11 10:07:09 raspberrypi kernel: [ 0.741461] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
May 11 10:07:09 raspberrypi kernel: [ 0.741481] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
May 11 10:07:09 raspberrypi kernel: [ 0.741497] usb usb1: Product: DWC OTG Controller
May 11 10:07:09 raspberrypi kernel: [ 0.741512] usb usb1: Manufacturer: Linux 4.1.19-v7+ dwc_otg_hcd
May 11 10:07:09 raspberrypi kernel: [ 0.741527] usb usb1: SerialNumber: 3f980000.usb
May 11 10:07:09 raspberrypi kernel: [ 0.742391] hub 1-0:1.0: USB hub found
May 11 10:07:09 raspberrypi kernel: [ 0.742456] hub 1-0:1.0: 1 port detected
May 11 10:07:09 raspberrypi kernel: [ 0.742983] dwc_otg: FIQ enabled
May 11 10:07:09 raspberrypi kernel: [ 0.742996] dwc_otg: NAK holdoff enabled
May 11 10:07:09 raspberrypi kernel: [ 0.743005] dwc_otg: FIQ split-transaction FSM enabled
May 11 10:07:09 raspberrypi kernel: [ 0.743047] Module dwc_common_port init
May 11 10:07:09 raspberrypi kernel: [ 0.743442] usbcore: registered new interface driver usb-storage
May 11 10:07:09 raspberrypi kernel: [ 0.743717] mousedev: PS/2 mouse device common for all mice
May 11 10:07:09 raspberrypi kernel: [ 0.744551] bcm2835-cpufreq: min=600000 max=900000
May 11 10:07:09 raspberrypi kernel: [ 0.744923] sdhci: Secure Digital Host Controller Interface driver
May 11 10:07:09 raspberrypi kernel: [ 0.744936] sdhci: Copyright(c) Pierre Ossman
May 11 10:07:09 raspberrypi kernel: [ 0.745282] sdhost: log_buf @ ba813000 (fa813000)
May 11 10:07:09 raspberrypi kernel: [ 0.822917] mmc0: sdhost-bcm2835 loaded - DMA enabled (>1)
May 11 10:07:09 raspberrypi kernel: [ 0.843532] sdhci-pltfm: SDHCI platform and OF driver helper
May 11 10:07:09 raspberrypi kernel: [ 0.844125] ledtrig-cpu: registered to indicate activity on CPUs
May 11 10:07:09 raspberrypi kernel: [ 0.844371] hidraw: raw HID events driver (C) Jiri Kosina
May 11 10:07:09 raspberrypi kernel: [ 0.844620] usbcore: registered new interface driver usbhid
May 11 10:07:09 raspberrypi kernel: [ 0.844632] usbhid: USB HID core driver
May 11 10:07:09 raspberrypi kernel: [ 0.845088] Initializing XFRM netlink socket
May 11 10:07:09 raspberrypi kernel: [ 0.845129] NET: Registered protocol family 17
May 11 10:07:09 raspberrypi kernel: [ 0.845289] Key type dns_resolver registered
May 11 10:07:09 raspberrypi kernel: [ 0.845731] Registering SWP/SWPB emulation handler
May 11 10:07:09 raspberrypi kernel: [ 0.846699] registered taskstats version 1
May 11 10:07:09 raspberrypi kernel: [ 0.846982] vc-sm: Videocore shared memory driver
May 11 10:07:09 raspberrypi kernel: [ 0.847002] [vc_sm_connected_init]: start
May 11 10:07:09 raspberrypi kernel: [ 0.847689] [vc_sm_connected_init]: end - returning 0
May 11 10:07:09 raspberrypi kernel: [ 0.849310] Waiting for root device /dev/mmcblk0p7...
May 11 10:07:09 raspberrypi kernel: [ 0.922658] mmc0: host does not support reading read-only switch, assuming write-enable
May 11 10:07:09 raspberrypi kernel: [ 0.926743] mmc0: new high speed SDHC card at address e624
May 11 10:07:09 raspberrypi kernel: [ 0.927485] mmcblk0: mmc0:e624 SU08G 7.40 GiB
May 11 10:07:09 raspberrypi kernel: [ 0.932278] mmcblk0: p1 p2 < p5 p6 p7 >
May 11 10:07:09 raspberrypi kernel: [ 0.933023] Indeed it is in host mode hprt0 = 00021501
May 11 10:07:09 raspberrypi kernel: [ 0.965529] EXT4-fs (mmcblk0p7): mounted filesystem with ordered data mode. Opts: (null)
May 11 10:07:09 raspberrypi kernel: [ 0.965600] VFS: Mounted root (ext4 filesystem) readonly on device 179:7.
May 11 10:07:09 raspberrypi kernel: [ 0.974699] devtmpfs: mounted
May 11 10:07:09 raspberrypi kernel: [ 0.975433] Freeing unused kernel memory: 444K (80795000 - 80804000)
May 11 10:07:09 raspberrypi kernel: [ 1.112940] usb 1-1: new high-speed USB device number 2 using dwc_otg
May 11 10:07:09 raspberrypi kernel: [ 1.113146] Indeed it is in host mode hprt0 = 00001101
May 11 10:07:09 raspberrypi kernel: [ 1.274539] random: systemd urandom read with 30 bits of entropy available
May 11 10:07:09 raspberrypi kernel: [ 1.313320] usb 1-1: New USB device found, idVendor=0424, idProduct=9514
May 11 10:07:09 raspberrypi kernel: [ 1.313351] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
May 11 10:07:09 raspberrypi kernel: [ 1.314283] hub 1-1:1.0: USB hub found
May 11 10:07:09 raspberrypi kernel: [ 1.314435] hub 1-1:1.0: 5 ports detected
May 11 10:07:09 raspberrypi kernel: [ 1.397417] NET: Registered protocol family 10
May 11 10:07:09 raspberrypi kernel: [ 1.592958] usb 1-1.1: new high-speed USB device number 3 using dwc_otg
May 11 10:07:09 raspberrypi kernel: [ 1.693363] usb 1-1.1: New USB device found, idVendor=0424, idProduct=ec00
May 11 10:07:09 raspberrypi kernel: [ 1.693393] usb 1-1.1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
May 11 10:07:09 raspberrypi kernel: [ 1.696401] smsc95xx v1.0.4
May 11 10:07:09 raspberrypi kernel: [ 1.757412] smsc95xx 1-1.1:1.0 eth0: register 'smsc95xx' at usb-3f980000.usb-1.1, smsc95xx USB 2.0 Ethernet, b8:27:eb:7f:fb:44
May 11 10:07:09 raspberrypi kernel: [ 1.833003] usb 1-1.3: new full-speed USB device number 4 using dwc_otg
May 11 10:07:09 raspberrypi kernel: [ 1.949195] usb 1-1.3: New USB device found, idVendor=413c, idProduct=2501
May 11 10:07:09 raspberrypi kernel: [ 1.949228] usb 1-1.3: New USB device strings: Mfr=1, Product=2, SerialNumber=0
May 11 10:07:09 raspberrypi kernel: [ 1.949245] usb 1-1.3: Product: Dell KM632 Wireless Keyboard and Mouse
May 11 10:07:09 raspberrypi kernel: [ 1.949264] usb 1-1.3: Manufacturer: Dell
May 11 10:07:09 raspberrypi kernel: [ 1.958948] input: Dell Dell KM632 Wireless Keyboard and Mouse as /devices/platform/soc/3f980000.usb/usb1/1-1/1-1.3/1-1.3:1.0/0003:413C:2501.0001/input/input0
May 11 10:07:09 raspberrypi kernel: [ 2.013427] hid-generic 0003:413C:2501.0001: input,hidraw0: USB HID v1.11 Keyboard [Dell Dell KM632 Wireless Keyboard and Mouse] on usb-3f980000.usb-1.3/input0
May 11 10:07:09 raspberrypi kernel: [ 2.027485] input: Dell Dell KM632 Wireless Keyboard and Mouse as /devices/platform/soc/3f980000.usb/usb1/1-1/1-1.3/1-1.3:1.1/0003:413C:2501.0002/input/input1
May 11 10:07:09 raspberrypi kernel: [ 2.054347] fuse init (API version 7.23)
May 11 10:07:09 raspberrypi kernel: [ 2.083758] hid-generic 0003:413C:2501.0002: input,hiddev0,hidraw1: USB HID v1.11 Device [Dell Dell KM632 Wireless Keyboard and Mouse] on usb-3f980000.usb-1.3/input1
May 11 10:07:09 raspberrypi kernel: [ 2.091241] i2c /dev entries driver
May 11 10:07:09 raspberrypi kernel: [ 2.091606] input: Dell Dell KM632 Wireless Keyboard and Mouse as /devices/platform/soc/3f980000.usb/usb1/1-1/1-1.3/1-1.3:1.2/0003:413C:2501.0003/input/input2
May 11 10:07:09 raspberrypi kernel: [ 2.092518] hid-generic 0003:413C:2501.0003: input,hidraw2: USB HID v1.11 Mouse [Dell Dell KM632 Wireless Keyboard and Mouse] on usb-3f980000.usb-1.3/input2
May 11 10:07:09 raspberrypi kernel: [ 2.172993] usb 1-1.5: new high-speed USB device number 5 using dwc_otg
May 11 10:07:09 raspberrypi kernel: [ 2.227130] bcm2708 watchdog, heartbeat=10 sec (nowayout=0)
May 11 10:07:09 raspberrypi kernel: [ 2.275379] usb 1-1.5: New USB device found, idVendor=1307, idProduct=0165
May 11 10:07:09 raspberrypi kernel: [ 2.275411] usb 1-1.5: New USB device strings: Mfr=1, Product=2, SerialNumber=3
May 11 10:07:09 raspberrypi kernel: [ 2.275428] usb 1-1.5: Product: USB Mass Storage Device
May 11 10:07:09 raspberrypi kernel: [ 2.275444] usb 1-1.5: Manufacturer: USBest Technology
May 11 10:07:09 raspberrypi kernel: [ 2.275460] usb 1-1.5: SerialNumber: 08082552ae26c5
May 11 10:07:09 raspberrypi kernel: [ 2.276546] usb-storage 1-1.5:1.0: USB Mass Storage device detected
May 11 10:07:09 raspberrypi kernel: [ 2.277012] scsi host0: usb-storage 1-1.5:1.0
May 11 10:07:09 raspberrypi kernel: [ 3.060925] EXT4-fs (mmcblk0p7): re-mounted. Opts: (null)
May 11 10:07:09 raspberrypi kernel: [ 3.135107] gpiomem-bcm2835 3f200000.gpiomem: Initialised: Registers at 0x3f200000
May 11 10:07:09 raspberrypi kernel: [ 3.275186] scsi 0:0:0:0: Direct-Access 0.00 PQ: 0 ANSI: 2
May 11 10:07:09 raspberrypi kernel: [ 3.278544] sd 0:0:0:0: [sda] 3948544 512-byte logical blocks: (2.02 GB/1.88 GiB)
May 11 10:07:09 raspberrypi kernel: [ 3.279505] sd 0:0:0:0: [sda] Write Protect is off
May 11 10:07:09 raspberrypi kernel: [ 3.279544] sd 0:0:0:0: [sda] Mode Sense: 00 00 00 00
May 11 10:07:09 raspberrypi kernel: [ 3.280274] sd 0:0:0:0: [sda] Asking for cache data failed
May 11 10:07:09 raspberrypi kernel: [ 3.280310] sd 0:0:0:0: [sda] Assuming drive cache: write through
May 11 10:07:09 raspberrypi kernel: [ 3.446747] sda:
May 11 10:07:09 raspberrypi kernel: [ 3.589409] sd 0:0:0:0: [sda] Attached SCSI removable disk
May 11 10:07:09 raspberrypi kernel: [ 3.796421] sd 0:0:0:0: Attached scsi generic sg0 type 0
May 11 10:07:09 raspberrypi kernel: [ 3.991943] bcm2835-rng 3f104000.rng: hwrng registered
May 11 10:07:09 raspberrypi kernel: [ 4.166767] random: nonblocking pool is initialized
May 11 10:07:09 raspberrypi kernel: [ 4.167261] FAT-fs (sda): Volume was not properly unmounted. Some data may be corrupt. Please run fsck.
May 11 10:07:09 raspberrypi kernel: [ 5.761935] cfg80211: Calling CRDA to update world regulatory domain
May 11 10:07:09 raspberrypi kernel: [ 6.048025] cfg80211: World regulatory domain updated:
May 11 10:07:09 raspberrypi kernel: [ 6.048061] cfg80211: DFS Master region: unset
May 11 10:07:09 raspberrypi kernel: [ 6.048073] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
May 11 10:07:09 raspberrypi kernel: [ 6.048092] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
May 11 10:07:09 raspberrypi kernel: [ 6.048109] cfg80211: (2457000 KHz - 2482000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
May 11 10:07:09 raspberrypi kernel: [ 6.048125] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (N/A, 2000 mBm), (N/A)
May 11 10:07:09 raspberrypi kernel: [ 6.048151] cfg80211: (5170000 KHz - 5250000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (N/A)
May 11 10:07:09 raspberrypi kernel: [ 6.048172] cfg80211: (5250000 KHz - 5330000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (0 s)
May 11 10:07:09 raspberrypi kernel: [ 6.048188] cfg80211: (5490000 KHz - 5730000 KHz @ 160000 KHz), (N/A, 2000 mBm), (0 s)
May 11 10:07:09 raspberrypi kernel: [ 6.048206] cfg80211: (5735000 KHz - 5835000 KHz @ 80000 KHz), (N/A, 2000 mBm), (N/A)
May 11 10:07:09 raspberrypi kernel: [ 6.048250] cfg80211: (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 0 mBm), (N/A)
May 11 10:07:09 raspberrypi kernel: [ 6.262606] smsc95xx 1-1.1:1.0 eth0: hardware isn't capable of remote wakeup
May 11 10:07:09 raspberrypi kernel: [ 6.263383] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
May 11 10:08:19 raspberrypi kernel: [ 76.418812] uart-pl011 3f201000.uart: no DMA platform data
May 11 10:07:08 raspberrypi kernel: [ 0.000000] Booting Linux on physical CPU 0xf00
May 11 10:07:08 raspberrypi kernel: [ 0.000000] Initializing cgroup subsys cpuset
May 11 10:07:08 raspberrypi kernel: [ 0.000000] Initializing cgroup subsys cpu
May 11 10:07:08 raspberrypi kernel: [ 0.000000] Initializing cgroup subsys cpuacct
May 11 10:07:08 raspberrypi kernel: [ 0.000000] Linux version 4.1.19-v7+ (dc4@dc4-XPS13-9333) (gcc version 4.9.3 (crosstool-NG crosstool-ng-1.22.0-88-g8460611) ) #858 SMP Tue Mar 15 15:56:00 GMT 2016
May 11 10:07:08 raspberrypi kernel: [ 0.000000] CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
May 11 10:07:08 raspberrypi kernel: [ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
May 11 10:07:08 raspberrypi kernel: [ 0.000000] Machine model: Raspberry Pi 2 Model B Rev 1.1
May 11 10:07:08 raspberrypi kernel: [ 0.000000] cma: Reserved 8 MiB at 0x3a400000
May 11 10:07:08 raspberrypi kernel: [ 0.000000] Memory policy: Data cache writealloc
May 11 10:07:08 raspberrypi kernel: [ 0.000000] On node 0 totalpages: 241664
May 11 10:07:08 raspberrypi kernel: [ 0.000000] free_area_init_node: node 0, pgdat 80880fc0, node_mem_map b9bb4000
May 11 10:07:08 raspberrypi kernel: [ 0.000000] Normal zone: 2124 pages used for memmap
May 11 10:07:08 raspberrypi kernel: [ 0.000000] Normal zone: 0 pages reserved
May 11 10:07:08 raspberrypi kernel: [ 0.000000] Normal zone: 241664 pages, LIFO batch:31
May 11 10:07:08 raspberrypi kernel: [ 0.000000] [bcm2709_smp_init_cpus] enter (9420->f3003010)
May 11 10:07:08 raspberrypi kernel: [ 0.000000] [bcm2709_smp_init_cpus] ncores=4
May 11 10:07:08 raspberrypi kernel: [ 0.000000] PERCPU: Embedded 12 pages/cpu @bafb1000 s20416 r8192 d20544 u49152
May 11 10:07:08 raspberrypi kernel: [ 0.000000] pcpu-alloc: s20416 r8192 d20544 u49152 alloc=12_4096
May 11 10:07:08 raspberrypi kernel: [ 0.000000] pcpu-alloc: [0] 0 [0] 1 [0] 2 [0] 3
May 11 10:07:08 raspberrypi kernel: [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 239540
May 11 10:07:08 raspberrypi kernel: [ 0.000000] Kernel command line: dma.dmachans=0x7f35 bcm2708_fb.fbwidth=800 bcm2708_fb.fbheight=480 bcm2709.boardrev=0xa21041 bcm2709.serial=0x987ffb44 smsc95xx.macaddr=B8:27:EB:7F:FB:44 bcm2708_fb.fbswap=1 bcm2709.uart_clock=3000000 bcm2709.disk_led_gpio=47 bcm2709.disk_led_active_low=0 vc_mem.mem_base=0x3dc00000 vc_mem.mem_size=0x3f000000 dwc_otg.lpm_enable=0 console=tty1 root=/dev/mmcblk0p7 rootfstype=ext4 elevator=deadline fsck.repair=yes rootwait quiet
May 11 10:07:08 raspberrypi kernel: [ 0.000000] PID hash table entries: 4096 (order: 2, 16384 bytes)
May 11 10:07:08 raspberrypi kernel: [ 0.000000] Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
May 11 10:07:08 raspberrypi kernel: [ 0.000000] Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
May 11 10:07:08 raspberrypi kernel: [ 0.000000] Memory: 939380K/966656K available (6064K kernel code, 534K rwdata, 1664K rodata, 444K init, 757K bss, 19084K reserved, 8192K cma-reserved)
May 11 10:07:08 raspberrypi kernel: [ 0.000000] Virtual kernel memory layout:
May 11 10:07:08 raspberrypi kernel: [ 0.000000] vector : 0xffff0000 - 0xffff1000 ( 4 kB)
May 11 10:07:08 raspberrypi kernel: [ 0.000000] fixmap : 0xffc00000 - 0xfff00000 (3072 kB)
May 11 10:07:08 raspberrypi kernel: [ 0.000000] vmalloc : 0xbb800000 - 0xff000000 (1080 MB)
May 11 10:07:08 raspberrypi kernel: [ 0.000000] lowmem : 0x80000000 - 0xbb000000 ( 944 MB)
May 11 10:07:08 raspberrypi kernel: [ 0.000000] modules : 0x7f000000 - 0x80000000 ( 16 MB)
May 11 10:07:08 raspberrypi kernel: [ 0.000000] .text : 0x80008000 - 0x807945f0 (7730 kB)
May 11 10:07:08 raspberrypi kernel: [ 0.000000] .init : 0x80795000 - 0x80804000 ( 444 kB)
May 11 10:07:08 raspberrypi kernel: [ 0.000000] .data : 0x80804000 - 0x80889b10 ( 535 kB)
May 11 10:07:08 raspberrypi kernel: [ 0.000000] .bss : 0x8088c000 - 0x809497dc ( 758 kB)
May 11 10:07:08 raspberrypi kernel: [ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1
May 11 10:07:08 raspberrypi kernel: [ 0.000000] Hierarchical RCU implementation.
May 11 10:07:08 raspberrypi kernel: [ 0.000000] Additional per-CPU info printed with stalls.
May 11 10:07:08 raspberrypi kernel: [ 0.000000] NR_IRQS:608
May 11 10:07:08 raspberrypi kernel: [ 0.000000] Architected cp15 timer(s) running at 19.20MHz (phys).
May 11 10:07:08 raspberrypi kernel: [ 0.000000] clocksource arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0x46d987e47, max_idle_ns: 440795202767 ns
May 11 10:07:08 raspberrypi kernel: [ 0.000012] sched_clock: 56 bits at 19MHz, resolution 52ns, wraps every 4398046511078ns
May 11 10:07:08 raspberrypi kernel: [ 0.000033] Switching to timer-based delay loop, resolution 52ns
May 11 10:07:08 raspberrypi kernel: [ 0.000322] Console: colour dummy device 80x30
May 11 10:07:08 raspberrypi kernel: [ 0.000555] console [tty1] enabled
May 11 10:07:08 raspberrypi kernel: [ 0.000589] Calibrating delay loop (skipped), value calculated using timer frequency.. 38.40 BogoMIPS (lpj=192000)
May 11 10:07:08 raspberrypi kernel: [ 0.000615] pid_max: default: 32768 minimum: 301
May 11 10:07:08 raspberrypi kernel: [ 0.000980] Mount-cache hash table entries: 2048 (order: 1, 8192 bytes)
May 11 10:07:08 raspberrypi kernel: [ 0.001001] Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes)
May 11 10:07:08 raspberrypi kernel: [ 0.002261] Initializing cgroup subsys blkio
May 11 10:07:08 raspberrypi kernel: [ 0.002300] Initializing cgroup subsys memory
May 11 10:07:08 raspberrypi kernel: [ 0.002332] Initializing cgroup subsys devices
May 11 10:07:08 raspberrypi kernel: [ 0.002357] Initializing cgroup subsys freezer
May 11 10:07:08 raspberrypi kernel: [ 0.002398] Initializing cgroup subsys net_cls
May 11 10:07:08 raspberrypi kernel: [ 0.002472] CPU: Testing write buffer coherency: ok
May 11 10:07:08 raspberrypi kernel: [ 0.002558] ftrace: allocating 20313 entries in 60 pages
May 11 10:07:08 raspberrypi kernel: [ 0.051617] CPU0: update cpu_capacity 1024
May 11 10:07:08 raspberrypi kernel: [ 0.051657] CPU0: thread -1, cpu 0, socket 15, mpidr 80000f00
May 11 10:07:08 raspberrypi kernel: [ 0.051675] [bcm2709_smp_prepare_cpus] enter
May 11 10:07:08 raspberrypi kernel: [ 0.051813] Setting up static identity map for 0x8240 - 0x8274
May 11 10:07:08 raspberrypi kernel: [ 0.054316] [bcm2709_boot_secondary] cpu:1 started (0) 18
May 11 10:07:08 raspberrypi kernel: [ 0.054757] [bcm2709_secondary_init] enter cpu:1
May 11 10:07:08 raspberrypi kernel: [ 0.054818] CPU1: update cpu_capacity 1024
May 11 10:07:08 raspberrypi kernel: [ 0.054827] CPU1: thread -1, cpu 1, socket 15, mpidr 80000f01
May 11 10:07:08 raspberrypi kernel: [ 0.055408] [bcm2709_boot_secondary] cpu:2 started (0) 18
May 11 10:07:08 raspberrypi kernel: [ 0.055762] [bcm2709_secondary_init] enter cpu:2
May 11 10:07:08 raspberrypi kernel: [ 0.055796] CPU2: update cpu_capacity 1024
May 11 10:07:08 raspberrypi kernel: [ 0.055804] CPU2: thread -1, cpu 2, socket 15, mpidr 80000f02
May 11 10:07:08 raspberrypi kernel: [ 0.056357] [bcm2709_boot_secondary] cpu:3 started (0) 17
May 11 10:07:08 raspberrypi kernel: [ 0.056611] [bcm2709_secondary_init] enter cpu:3
May 11 10:07:08 raspberrypi kernel: [ 0.056639] CPU3: update cpu_capacity 1024
May 11 10:07:08 raspberrypi kernel: [ 0.056647] CPU3: thread -1, cpu 3, socket 15, mpidr 80000f03
May 11 10:07:08 raspberrypi kernel: [ 0.056741] Brought up 4 CPUs
May 11 10:07:08 raspberrypi kernel: [ 0.056771] SMP: Total of 4 processors activated (153.60 BogoMIPS).
May 11 10:07:08 raspberrypi kernel: [ 0.056781] CPU: All CPU(s) started in HYP mode.
May 11 10:07:08 raspberrypi kernel: [ 0.056790] CPU: Virtualization extensions available.
May 11 10:07:08 raspberrypi kernel: [ 0.057794] devtmpfs: initialized
May 11 10:07:08 raspberrypi kernel: [ 0.081474] VFP support v0.3: implementor 41 architecture 2 part 30 variant 7 rev 5
May 11 10:07:08 raspberrypi kernel: [ 0.081775] clocksource jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
May 11 10:07:08 raspberrypi kernel: [ 0.082965] pinctrl core: initialized pinctrl subsystem
May 11 10:07:08 raspberrypi kernel: [ 0.083755] NET: Registered protocol family 16
May 11 10:07:08 raspberrypi kernel: [ 0.089431] DMA: preallocated 4096 KiB pool for atomic coherent allocations
May 11 10:07:08 raspberrypi kernel: [ 0.090610] bcm2709.uart_clock = 3000000
May 11 10:07:08 raspberrypi kernel: [ 0.095651] hw-breakpoint: found 5 (+1 reserved) breakpoint and 4 watchpoint registers.
May 11 10:07:08 raspberrypi kernel: [ 0.095669] hw-breakpoint: maximum watchpoint size is 8 bytes.
May 11 10:07:08 raspberrypi kernel: [ 0.095865] Serial: AMBA PL011 UART driver
May 11 10:07:08 raspberrypi kernel: [ 0.096064] 3f201000.uart: ttyAMA0 at MMIO 0x3f201000 (irq = 83, base_baud = 0) is a PL011 rev2
May 11 10:07:08 raspberrypi kernel: [ 0.096637] bcm2835-mbox 3f00b880.mailbox: mailbox enabled
May 11 10:07:08 raspberrypi kernel: [ 0.172901] bcm2708-dmaengine 3f007000.dma: DMA legacy API manager at f3007000, dmachans=0xf35
May 11 10:07:08 raspberrypi kernel: [ 0.172947] bcm2708-dmaengine 3f007000.dma: Initialized 7 DMA channels (+ 1 legacy)
May 11 10:07:08 raspberrypi kernel: [ 0.173645] bcm2708-dmaengine 3f007000.dma: Load BCM2835 DMA engine driver
May 11 10:07:08 raspberrypi kernel: [ 0.173664] bcm2708-dmaengine 3f007000.dma: dma_debug:0
May 11 10:07:08 raspberrypi kernel: [ 0.174395] SCSI subsystem initialized
May 11 10:07:08 raspberrypi kernel: [ 0.174646] usbcore: registered new interface driver usbfs
May 11 10:07:08 raspberrypi kernel: [ 0.174755] usbcore: registered new interface driver hub
May 11 10:07:08 raspberrypi kernel: [ 0.174908] usbcore: registered new device driver usb
May 11 10:07:08 raspberrypi kernel: [ 0.175626] raspberrypi-firmware soc:firmware: Attached to firmware from 2016-03-15 14:47
May 11 10:07:08 raspberrypi kernel: [ 0.202969] Switched to clocksource arch_sys_counter
May 11 10:07:08 raspberrypi kernel: [ 0.251762] FS-Cache: Loaded
May 11 10:07:08 raspberrypi kernel: [ 0.252167] CacheFiles: Loaded
May 11 10:07:08 raspberrypi kernel: [ 0.265312] NET: Registered protocol family 2
May 11 10:07:08 raspberrypi kernel: [ 0.266672] TCP established hash table entries: 8192 (order: 3, 32768 bytes)
May 11 10:07:08 raspberrypi kernel: [ 0.266814] TCP bind hash table entries: 8192 (order: 4, 65536 bytes)
May 11 10:07:08 raspberrypi kernel: [ 0.267007] TCP: Hash tables configured (established 8192 bind 8192)
May 11 10:07:08 raspberrypi kernel: [ 0.267132] UDP hash table entries: 512 (order: 2, 16384 bytes)
May 11 10:07:08 raspberrypi kernel: [ 0.267197] UDP-Lite hash table entries: 512 (order: 2, 16384 bytes)
May 11 10:07:08 raspberrypi kernel: [ 0.267672] NET: Registered protocol family 1
May 11 10:07:08 raspberrypi kernel: [ 0.268146] RPC: Registered named UNIX socket transport module.
May 11 10:07:08 raspberrypi kernel: [ 0.268163] RPC: Registered udp transport module.
May 11 10:07:08 raspberrypi kernel: [ 0.268174] RPC: Registered tcp transport module.
May 11 10:07:08 raspberrypi kernel: [ 0.268184] RPC: Registered tcp NFSv4.1 backchannel transport module.
May 11 10:07:08 raspberrypi kernel: [ 0.269305] hw perfevents: enabled with armv7_cortex_a7 PMU driver, 5 counters available
May 11 10:07:08 raspberrypi kernel: [ 0.270659] futex hash table entries: 1024 (order: 4, 65536 bytes)
May 11 10:07:08 raspberrypi kernel: [ 0.286938] VFS: Disk quotas dquot_6.6.0
May 11 10:07:08 raspberrypi kernel: [ 0.287327] VFS: Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
May 11 10:07:08 raspberrypi kernel: [ 0.289852] FS-Cache: Netfs 'nfs' registered for caching
May 11 10:07:08 raspberrypi kernel: [ 0.291045] NFS: Registering the id_resolver key type
May 11 10:07:08 raspberrypi kernel: [ 0.291139] Key type id_resolver registered
May 11 10:07:08 raspberrypi kernel: [ 0.291152] Key type id_legacy registered
May 11 10:07:08 raspberrypi kernel: [ 0.293953] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 252)
May 11 10:07:08 raspberrypi kernel: [ 0.294139] io scheduler noop registered
May 11 10:07:08 raspberrypi kernel: [ 0.294164] io scheduler deadline registered (default)
May 11 10:07:08 raspberrypi kernel: [ 0.294500] io scheduler cfq registered
May 11 10:07:08 raspberrypi kernel: [ 0.297076] BCM2708FB: allocated DMA memory fa800000
May 11 10:07:08 raspberrypi kernel: [ 0.297139] BCM2708FB: allocated DMA channel 0 @ f3007000
May 11 10:07:08 raspberrypi kernel: [ 0.304578] Console: switching to colour frame buffer device 100x30
May 11 10:07:08 raspberrypi kernel: [ 0.309199] Serial: 8250/16550 driver, 0 ports, IRQ sharing disabled
May 11 10:07:08 raspberrypi kernel: [ 0.310451] vc-cma: Videocore CMA driver
May 11 10:07:08 raspberrypi kernel: [ 0.310466] vc-cma: vc_cma_base = 0x00000000
May 11 10:07:08 raspberrypi kernel: [ 0.310477] vc-cma: vc_cma_size = 0x00000000 (0 MiB)
May 11 10:07:08 raspberrypi kernel: [ 0.310488] vc-cma: vc_cma_initial = 0x00000000 (0 MiB)
May 11 10:07:08 raspberrypi kernel: [ 0.310731] vc-mem: phys_addr:0x00000000 mem_base=0x3dc00000 mem_size:0x3f000000(1008 MiB)
May 11 10:07:08 raspberrypi kernel: [ 0.326728] brd: module loaded
May 11 10:07:08 raspberrypi kernel: [ 0.335848] loop: module loaded
May 11 10:07:08 raspberrypi kernel: [ 0.336854] vchiq: vchiq_init_state: slot_zero = 0xba880000, is_master = 0
May 11 10:07:08 raspberrypi kernel: [ 0.338670] Loading iSCSI transport class v2.0-870.
May 11 10:07:08 raspberrypi kernel: [ 0.339572] usbcore: registered new interface driver smsc95xx
May 11 10:07:08 raspberrypi kernel: [ 0.339652] dwc_otg: version 3.00a 10-AUG-2012 (platform bus)
May 11 10:07:08 raspberrypi kernel: [ 0.540034] Core Release: 2.80a
May 11 10:07:08 raspberrypi kernel: [ 0.540055] Setting default values for core params
May 11 10:07:08 raspberrypi kernel: [ 0.540102] Finished setting default values for core params
May 11 10:07:08 raspberrypi kernel: [ 0.740524] Using Buffer DMA mode
May 11 10:07:08 raspberrypi kernel: [ 0.740541] Periodic Transfer Interrupt Enhancement - disabled
May 11 10:07:08 raspberrypi kernel: [ 0.740552] Multiprocessor Interrupt Enhancement - disabled
May 11 10:07:08 raspberrypi kernel: [ 0.740564] OTG VER PARAM: 0, OTG VER FLAG: 0
May 11 10:07:08 raspberrypi kernel: [ 0.740599] Dedicated Tx FIFOs mode
May 11 10:07:08 raspberrypi kernel: [ 0.740975] WARN::dwc_otg_hcd_init:1047: FIQ DMA bounce buffers: virt = 0xba814000 dma = 0xfa814000 len=9024
May 11 10:07:08 raspberrypi kernel: [ 0.741012] FIQ FSM acceleration enabled for :
May 11 10:07:08 raspberrypi kernel: [ 0.741012] Non-periodic Split Transactions
May 11 10:07:08 raspberrypi kernel: [ 0.741012] Periodic Split Transactions
May 11 10:07:08 raspberrypi kernel: [ 0.741012] High-Speed Isochronous Endpoints
May 11 10:07:08 raspberrypi kernel: [ 0.741037] dwc_otg: Microframe scheduler enabled
May 11 10:07:08 raspberrypi kernel: [ 0.741097] WARN::hcd_init_fiq:412: FIQ on core 1 at 0x80417288
May 11 10:07:08 raspberrypi kernel: [ 0.741115] WARN::hcd_init_fiq:413: FIQ ASM at 0x804175f8 length 36
May 11 10:07:08 raspberrypi kernel: [ 0.741133] WARN::hcd_init_fiq:438: MPHI regs_base at 0xbb89a000
May 11 10:07:08 raspberrypi kernel: [ 0.741178] dwc_otg 3f980000.usb: DWC OTG Controller
May 11 10:07:08 raspberrypi kernel: [ 0.741227] dwc_otg 3f980000.usb: new USB bus registered, assigned bus number 1
May 11 10:07:08 raspberrypi kernel: [ 0.741272] dwc_otg 3f980000.usb: irq 32, io mem 0x00000000
May 11 10:07:08 raspberrypi kernel: [ 0.741328] Init: Port Power? op_state=1
May 11 10:07:08 raspberrypi kernel: [ 0.741338] Init: Power Port (0)
May 11 10:07:08 raspberrypi kernel: [ 0.741625] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
May 11 10:07:08 raspberrypi kernel: [ 0.741645] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
May 11 10:07:08 raspberrypi kernel: [ 0.741661] usb usb1: Product: DWC OTG Controller
May 11 10:07:08 raspberrypi kernel: [ 0.741677] usb usb1: Manufacturer: Linux 4.1.19-v7+ dwc_otg_hcd
May 11 10:07:08 raspberrypi kernel: [ 0.741691] usb usb1: SerialNumber: 3f980000.usb
May 11 10:07:08 raspberrypi kernel: [ 0.742568] hub 1-0:1.0: USB hub found
May 11 10:07:08 raspberrypi kernel: [ 0.742631] hub 1-0:1.0: 1 port detected
May 11 10:07:08 raspberrypi kernel: [ 0.743152] dwc_otg: FIQ enabled
May 11 10:07:08 raspberrypi kernel: [ 0.743166] dwc_otg: NAK holdoff enabled
May 11 10:07:08 raspberrypi kernel: [ 0.743176] dwc_otg: FIQ split-transaction FSM enabled
May 11 10:07:08 raspberrypi kernel: [ 0.743217] Module dwc_common_port init
May 11 10:07:08 raspberrypi kernel: [ 0.743615] usbcore: registered new interface driver usb-storage
May 11 10:07:08 raspberrypi kernel: [ 0.743888] mousedev: PS/2 mouse device common for all mice
May 11 10:07:08 raspberrypi kernel: [ 0.744718] bcm2835-cpufreq: min=600000 max=900000
May 11 10:07:08 raspberrypi kernel: [ 0.745088] sdhci: Secure Digital Host Controller Interface driver
May 11 10:07:08 raspberrypi kernel: [ 0.745101] sdhci: Copyright(c) Pierre Ossman
May 11 10:07:08 raspberrypi kernel: [ 0.745445] sdhost: log_buf @ ba813000 (fa813000)
May 11 10:07:08 raspberrypi kernel: [ 0.823013] mmc0: sdhost-bcm2835 loaded - DMA enabled (>1)
May 11 10:07:08 raspberrypi kernel: [ 0.843627] sdhci-pltfm: SDHCI platform and OF driver helper
May 11 10:07:08 raspberrypi kernel: [ 0.844217] ledtrig-cpu: registered to indicate activity on CPUs
May 11 10:07:08 raspberrypi kernel: [ 0.844462] hidraw: raw HID events driver (C) Jiri Kosina
May 11 10:07:08 raspberrypi kernel: [ 0.844709] usbcore: registered new interface driver usbhid
May 11 10:07:08 raspberrypi kernel: [ 0.844721] usbhid: USB HID core driver
May 11 10:07:08 raspberrypi kernel: [ 0.845175] Initializing XFRM netlink socket
May 11 10:07:08 raspberrypi kernel: [ 0.845217] NET: Registered protocol family 17
May 11 10:07:08 raspberrypi kernel: [ 0.845400] Key type dns_resolver registered
May 11 10:07:08 raspberrypi kernel: [ 0.845843] Registering SWP/SWPB emulation handler
May 11 10:07:08 raspberrypi kernel: [ 0.846806] registered taskstats version 1
May 11 10:07:08 raspberrypi kernel: [ 0.847078] vc-sm: Videocore shared memory driver
May 11 10:07:08 raspberrypi kernel: [ 0.847099] [vc_sm_connected_init]: start
May 11 10:07:08 raspberrypi kernel: [ 0.847789] [vc_sm_connected_init]: end - returning 0
May 11 10:07:08 raspberrypi kernel: [ 0.849415] Waiting for root device /dev/mmcblk0p7...
May 11 10:07:08 raspberrypi kernel: [ 0.922754] mmc0: host does not support reading read-only switch, assuming write-enable
May 11 10:07:08 raspberrypi kernel: [ 0.926838] mmc0: new high speed SDHC card at address e624
May 11 10:07:08 raspberrypi kernel: [ 0.927571] mmcblk0: mmc0:e624 SU08G 7.40 GiB
May 11 10:07:08 raspberrypi kernel: [ 0.932351] mmcblk0: p1 p2 < p5 p6 p7 >
May 11 10:07:08 raspberrypi kernel: [ 0.933134] Indeed it is in host mode hprt0 = 00021501
May 11 10:07:08 raspberrypi kernel: [ 0.965646] EXT4-fs (mmcblk0p7): mounted filesystem with ordered data mode. Opts: (null)
May 11 10:07:08 raspberrypi kernel: [ 0.965715] VFS: Mounted root (ext4 filesystem) readonly on device 179:7.
May 11 10:07:08 raspberrypi kernel: [ 0.974816] devtmpfs: mounted
May 11 10:07:08 raspberrypi kernel: [ 0.975550] Freeing unused kernel memory: 444K (80795000 - 80804000)
May 11 10:07:08 raspberrypi kernel: [ 1.113031] usb 1-1: new high-speed USB device number 2 using dwc_otg
May 11 10:07:08 raspberrypi kernel: [ 1.113242] Indeed it is in host mode hprt0 = 00001101
May 11 10:07:08 raspberrypi kernel: [ 1.273393] random: systemd urandom read with 29 bits of entropy available
May 11 10:07:08 raspberrypi kernel: [ 1.313398] usb 1-1: New USB device found, idVendor=0424, idProduct=9514
May 11 10:07:08 raspberrypi kernel: [ 1.313427] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
May 11 10:07:08 raspberrypi kernel: [ 1.314349] hub 1-1:1.0: USB hub found
May 11 10:07:08 raspberrypi kernel: [ 1.314483] hub 1-1:1.0: 5 ports detected
May 11 10:07:08 raspberrypi kernel: [ 1.392766] NET: Registered protocol family 10
May 11 10:07:08 raspberrypi kernel: [ 1.593038] usb 1-1.1: new high-speed USB device number 3 using dwc_otg
May 11 10:07:08 raspberrypi kernel: [ 1.693456] usb 1-1.1: New USB device found, idVendor=0424, idProduct=ec00
May 11 10:07:08 raspberrypi kernel: [ 1.693483] usb 1-1.1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
May 11 10:07:08 raspberrypi kernel: [ 1.696437] smsc95xx v1.0.4
May 11 10:07:08 raspberrypi kernel: [ 1.757317] smsc95xx 1-1.1:1.0 eth0: register 'smsc95xx' at usb-3f980000.usb-1.1, smsc95xx USB 2.0 Ethernet, b8:27:eb:7f:fb:44
May 11 10:07:08 raspberrypi kernel: [ 1.833071] usb 1-1.5: new high-speed USB device number 4 using dwc_otg
May 11 10:07:08 raspberrypi kernel: [ 1.935983] usb 1-1.5: New USB device found, idVendor=1307, idProduct=0165
May 11 10:07:08 raspberrypi kernel: [ 1.936014] usb 1-1.5: New USB device strings: Mfr=1, Product=2, SerialNumber=3
May 11 10:07:08 raspberrypi kernel: [ 1.936031] usb 1-1.5: Product: USB Mass Storage Device
May 11 10:07:08 raspberrypi kernel: [ 1.936049] usb 1-1.5: Manufacturer: USBest Technology
May 11 10:07:08 raspberrypi kernel: [ 1.936065] usb 1-1.5: SerialNumber: 08082552ae26c5
May 11 10:07:08 raspberrypi kernel: [ 1.937192] usb-storage 1-1.5:1.0: USB Mass Storage device detected
May 11 10:07:08 raspberrypi kernel: [ 1.939130] scsi host0: usb-storage 1-1.5:1.0
May 11 10:07:08 raspberrypi kernel: [ 2.044476] fuse init (API version 7.23)
May 11 10:07:08 raspberrypi kernel: [ 2.096533] i2c /dev entries driver
May 11 10:07:08 raspberrypi kernel: [ 2.240546] bcm2708 watchdog, heartbeat=10 sec (nowayout=0)
May 11 10:07:08 raspberrypi kernel: [ 2.935412] scsi 0:0:0:0: Direct-Access 0.00 PQ: 0 ANSI: 2
May 11 10:07:08 raspberrypi kernel: [ 2.939411] sd 0:0:0:0: [sda] 3948544 512-byte logical blocks: (2.02 GB/1.88 GiB)
May 11 10:07:08 raspberrypi kernel: [ 2.940464] sd 0:0:0:0: [sda] Write Protect is off
May 11 10:07:08 raspberrypi kernel: [ 2.940511] sd 0:0:0:0: [sda] Mode Sense: 00 00 00 00
May 11 10:07:08 raspberrypi kernel: [ 2.941376] sd 0:0:0:0: [sda] Asking for cache data failed
May 11 10:07:08 raspberrypi kernel: [ 2.941418] sd 0:0:0:0: [sda] Assuming drive cache: write through
May 11 10:07:08 raspberrypi kernel: [ 3.117477] sda:
May 11 10:07:08 raspberrypi kernel: [ 3.240031] EXT4-fs (mmcblk0p7): re-mounted. Opts: (null)
May 11 10:07:08 raspberrypi kernel: [ 3.259560] sd 0:0:0:0: [sda] Attached SCSI removable disk
May 11 10:07:08 raspberrypi kernel: [ 3.728775] bcm2835-rng 3f104000.rng: hwrng registered
May 11 10:07:08 raspberrypi kernel: [ 3.731269] gpiomem-bcm2835 3f200000.gpiomem: Initialised: Registers at 0x3f200000
May 11 10:07:08 raspberrypi kernel: [ 3.876707] sd 0:0:0:0: Attached scsi generic sg0 type 0
May 11 10:07:08 raspberrypi kernel: [ 4.164266] FAT-fs (sda): Volume was not properly unmounted. Some data may be corrupt. Please run fsck.
May 11 10:07:08 raspberrypi kernel: [ 5.291628] cfg80211: Calling CRDA to update world regulatory domain
May 11 10:07:08 raspberrypi kernel: [ 5.584352] cfg80211: World regulatory domain updated:
May 11 10:07:08 raspberrypi kernel: [ 5.584393] cfg80211: DFS Master region: unset
May 11 10:07:08 raspberrypi kernel: [ 5.584417] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
May 11 10:07:08 raspberrypi kernel: [ 5.584448] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
May 11 10:07:08 raspberrypi kernel: [ 5.584483] cfg80211: (2457000 KHz - 2482000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
May 11 10:07:08 raspberrypi kernel: [ 5.584506] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (N/A, 2000 mBm), (N/A)
May 11 10:07:08 raspberrypi kernel: [ 5.584536] cfg80211: (5170000 KHz - 5250000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (N/A)
May 11 10:07:08 raspberrypi kernel: [ 5.584558] cfg80211: (5250000 KHz - 5330000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (0 s)
May 11 10:07:08 raspberrypi kernel: [ 5.584575] cfg80211: (5490000 KHz - 5730000 KHz @ 160000 KHz), (N/A, 2000 mBm), (0 s)
May 11 10:07:08 raspberrypi kernel: [ 5.584597] cfg80211: (5735000 KHz - 5835000 KHz @ 80000 KHz), (N/A, 2000 mBm), (N/A)
May 11 10:07:08 raspberrypi kernel: [ 5.584626] cfg80211: (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 0 mBm), (N/A)
May 11 10:07:08 raspberrypi kernel: [ 5.786473] smsc95xx 1-1.1:1.0 eth0: hardware isn't capable of remote wakeup
May 11 10:07:08 raspberrypi kernel: [ 5.786805] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
May 11 10:07:08 raspberrypi kernel: [ 5.841076] random: nonblocking pool is initialized
May 11 10:08:19 raspberrypi kernel: [ 76.915556] uart-pl011 3f201000.uart: no DMA platform data
May 11 10:48:09 raspberrypi kernel: [ 2466.338400] usb 1-1.3: new full-speed USB device number 5 using dwc_otg
May 11 10:48:09 raspberrypi kernel: [ 2466.454433] usb 1-1.3: New USB device found, idVendor=413c, idProduct=2501
May 11 10:48:09 raspberrypi kernel: [ 2466.454462] usb 1-1.3: New USB device strings: Mfr=1, Product=2, SerialNumber=0
May 11 10:48:09 raspberrypi kernel: [ 2466.454479] usb 1-1.3: Product: Dell KM632 Wireless Keyboard and Mouse
May 11 10:48:09 raspberrypi kernel: [ 2466.454494] usb 1-1.3: Manufacturer: Dell
May 11 10:48:09 raspberrypi kernel: [ 2466.465925] input: Dell Dell KM632 Wireless Keyboard and Mouse as /devices/platform/soc/3f980000.usb/usb1/1-1/1-1.3/1-1.3:1.0/0003:413C:2501.0001/input/input0
May 11 10:48:09 raspberrypi kernel: [ 2466.518753] hid-generic 0003:413C:2501.0001: input,hidraw0: USB HID v1.11 Keyboard [Dell Dell KM632 Wireless Keyboard and Mouse] on usb-3f980000.usb-1.3/input0
May 11 10:48:09 raspberrypi kernel: [ 2466.533397] input: Dell Dell KM632 Wireless Keyboard and Mouse as /devices/platform/soc/3f980000.usb/usb1/1-1/1-1.3/1-1.3:1.1/0003:413C:2501.0002/input/input1
May 11 10:48:09 raspberrypi kernel: [ 2466.589152] hid-generic 0003:413C:2501.0002: input,hiddev0,hidraw1: USB HID v1.11 Device [Dell Dell KM632 Wireless Keyboard and Mouse] on usb-3f980000.usb-1.3/input1
May 11 10:48:09 raspberrypi kernel: [ 2466.595742] input: Dell Dell KM632 Wireless Keyboard and Mouse as /devices/platform/soc/3f980000.usb/usb1/1-1/1-1.3/1-1.3:1.2/0003:413C:2501.0003/input/input2
May 11 10:48:09 raspberrypi kernel: [ 2466.596357] hid-generic 0003:413C:2501.0003: input,hidraw2: USB HID v1.11 Mouse [Dell Dell KM632 Wireless Keyboard and Mouse] on usb-3f980000.usb-1.3/input2
May 11 10:51:54 raspberrypi kernel: [ 2691.409611] usb 1-1.3: USB disconnect, device number 5
May 11 19:12:56 raspberrypi kernel: [32753.653716] systemd-journal invoked oom-killer: gfp_mask=0x200da, order=0, oom_score_adj=0
May 11 19:12:56 raspberrypi kernel: [32753.653743] systemd-journal cpuset=/ mems_allowed=0
May 11 19:12:56 raspberrypi kernel: [32753.653780] CPU: 2 PID: 110 Comm: systemd-journal Not tainted 4.1.19-v7+ #858
May 11 19:12:56 raspberrypi kernel: [32753.653791] Hardware name: BCM2709
May 11 19:12:56 raspberrypi kernel: [32753.653840] <800185e0> from <80013f48>
May 11 19:12:56 raspberrypi kernel: [32753.653871] <80013f48> from <805730bc>
May 11 19:12:56 raspberrypi kernel: [32753.653897] <805730bc> from <805725d4>
May 11 19:12:56 raspberrypi kernel: [32753.653924] <805725d4> from <800fae60>
May 11 19:12:56 raspberrypi kernel: [32753.653949] <800fae60> from <800fb37c>
May 11 19:12:56 raspberrypi kernel: [32753.653972] <800fb37c> from <800fb694>
May 11 19:12:56 raspberrypi kernel: [32753.653997] <800fb694> from <8010019c>
May 11 19:12:56 raspberrypi kernel: [32753.654024] <8010019c> from <801101a0>
May 11 19:12:56 raspberrypi kernel: [32753.654050] <801101a0> from <801120b4>
May 11 19:12:56 raspberrypi kernel: [32753.654075] <801120b4> from <80148fb0>
May 11 19:12:56 raspberrypi kernel: [32753.654100] <80148fb0> from <80149e5c>
May 11 19:12:56 raspberrypi kernel: [32753.654125] <80149e5c> from <8000fa20>
May 11 19:12:56 raspberrypi kernel: [32753.654137] Mem-Info:
May 11 19:12:56 raspberrypi kernel: [32753.654168] active_anon:180772 inactive_anon:13181 isolated_anon:0
May 11 19:12:56 raspberrypi kernel: [32753.654168] active_file:0 inactive_file:0 isolated_file:0
May 11 19:12:56 raspberrypi kernel: [32753.654168] unevictable:437 dirty:0 writeback:0 unstable:0
May 11 19:12:56 raspberrypi kernel: [32753.654168] slab_reclaimable:3399 slab_unreclaimable:10572
May 11 19:12:56 raspberrypi kernel: [32753.654168] mapped:1606 shmem:13849 pagetables:12819 bounce:0
May 11 19:12:56 raspberrypi kernel: [32753.654168] free:2048 free_pcp:672 free_cma:0
May 11 19:12:56 raspberrypi kernel: [32753.654234] Normal free:8192kB min:8192kB low:10240kB high:12288kB active_anon:723088kB inactive_anon:52724kB active_file:0kB inactive_file:0kB unevictable:1748kB isolated(anon):0kB isolated(file):0kB present:966656kB managed:948016kB mlocked:1748kB dirty:0kB writeback:0kB mapped:6424kB shmem:55396kB slab_reclaimable:13596kB slab_unreclaimable:42288kB kernel_stack:14552kB pagetables:51276kB unstable:0kB bounce:0kB free_pcp:2688kB local_pcp:712kB free_cma:0kB writeback_tmp:0kB pages_scanned:416 all_unreclaimable? yes
May 11 19:12:56 raspberrypi kernel: [32753.654247] lowmem_reserve[]: 0 0
May 11 19:12:56 raspberrypi kernel: [32753.654267] Normal: 508_4kB (UE) 2_8kB (R) 4_16kB (R) 1_32kB (R) 3_64kB (R) 2_128kB (R) 0_256kB 1_512kB (R) 1_1024kB (R) 0_2048kB 1*4096kB (R) = 8224kB
May 11 19:12:56 raspberrypi kernel: [32753.654366] 14261 total pagecache pages
May 11 19:12:56 raspberrypi kernel: [32753.654380] 0 pages in swap cache
May 11 19:12:56 raspberrypi kernel: [32753.654391] Swap cache stats: add 0, delete 0, find 0/0
May 11 19:12:56 raspberrypi kernel: [32753.654401] Free swap = 0kB
May 11 19:12:56 raspberrypi kernel: [32753.654410] Total swap = 0kB
May 11 19:12:56 raspberrypi kernel: [32753.654420] 241664 pages RAM
May 11 19:12:56 raspberrypi kernel: [32753.654429] 0 pages HighMem/MovableOnly
May 11 19:12:56 raspberrypi kernel: [32753.654438] 2612 pages reserved
May 11 19:12:56 raspberrypi kernel: [32753.654533] 2048 pages cma reserved
May 11 19:12:56 raspberrypi kernel: [32753.654544] [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name
May 11 19:12:56 raspberrypi kernel: [32753.654600] [ 106] 0 106 2976 490 7 0 0 -1000 systemd-udevd
May 11 19:12:56 raspberrypi kernel: [32753.654633] [ 110] 0 110 2488 1280 9 0 0 0 systemd-journal
May 11 19:12:56 raspberrypi kernel: [32753.654666] [ 378] 0 378 1268 342 6 0 0 0 cron
May 11 19:12:56 raspberrypi kernel: [32753.654699] [ 380] 0 380 963 68 6 0 0 0 systemd-logind
May 11 19:12:56 raspberrypi kernel: [32753.654732] [ 384] 105 384 969 374 5 0 0 0 avahi-daemon
May 11 19:12:56 raspberrypi kernel: [32753.654791] [ 385] 104 385 1416 438 7 0 0 -900 dbus-daemon
May 11 19:12:56 raspberrypi kernel: [32753.654824] [ 404] 65534 404 573 299 5 0 0 0 thd
May 11 19:12:56 raspberrypi kernel: [32753.654859] [ 409] 0 409 641 316 5 0 0 0 dhcpcd
May 11 19:12:56 raspberrypi kernel: [32753.654890] [ 418] 105 418 969 56 5 0 0 0 avahi-daemon
May 11 19:12:56 raspberrypi kernel: [32753.654923] [ 483] 0 483 8036 616 12 0 0 0 rsyslogd
May 11 19:12:56 raspberrypi kernel: [32753.654956] [ 505] 0 505 10129 486 14 0 0 0 lightdm
May 11 19:12:56 raspberrypi kernel: [32753.654988] [ 532] 106 532 1421 105 7 0 0 0 ntpd
May 11 19:12:56 raspberrypi kernel: [32753.655021] [ 535] 0 535 1335 347 6 0 0 0 ntpd
May 11 19:12:56 raspberrypi kernel: [32753.655053] [ 567] 0 567 25194 2788 42 0 0 0 Xorg
May 11 19:12:56 raspberrypi kernel: [32753.663225] [ 2663] 1000 2663 1688 151 7 0 0 0 postdrop
May 11 19:12:56 raspberrypi kernel: [32753.663244] [ 2664] 0 2664 1689 472 7 0 0 0 cron
May 11 19:12:56 raspberrypi kernel: [32753.663263] [ 2675] 1000 2675 1690 406 7 0 0 0 sendmail
May 11 19:12:56 raspberrypi kernel: [32753.663283] [ 2676] 1000 2676 1688 88 8 0 0 0 postdrop
May 11 19:12:56 raspberrypi kernel: [32753.663302] [ 2677] 0 2677 1689 472 7 0 0 0 cron
May 11 19:12:56 raspberrypi kernel: [32753.663321] [ 2678] 0 2678 1689 472 7 0 0 0 cron
May 11 19:12:56 raspberrypi kernel: [32753.663341] [ 2700] 1000 2700 1690 402 8 0 0 0 sendmail
May 11 19:12:56 raspberrypi kernel: [32753.663360] [ 2704] 0 2704 1690 406 8 0 0 0 sendmail
May 11 19:12:56 raspberrypi kernel: [32753.663380] [ 2705] 1000 2705 1688 408 7 0 0 0 postdrop
May 11 19:12:56 raspberrypi kernel: [32753.663399] [ 2706] 0 2706 1688 88 7 0 0 0 postdrop
May 11 19:12:56 raspberrypi kernel: [32753.663419] [ 2708] 0 2708 1689 472 7 0 0 0 cron
May 11 19:12:56 raspberrypi kernel: [32753.663438] [ 2719] 1000 2719 1690 405 8 0 0 0 sendmail
May 11 19:12:56 raspberrypi kernel: [32753.663458] [ 2720] 1000 2720 1688 193 7 0 0 0 postdrop
May 11 19:12:56 raspberrypi kernel: [32753.663477] [ 2722] 0 2722 1689 472 7 0 0 0 cron
May 11 19:12:56 raspberrypi kernel: [32753.663497] [ 2733] 1000 2733 1690 406 8 0 0 0 sendmail
May 11 19:12:56 raspberrypi kernel: [32753.663516] [ 2734] 1000 2734 1688 88 8 0 0 0 postdrop
May 11 19:12:56 raspberrypi kernel: [32753.663536] [ 2736] 0 2736 1689 472 7 0 0 0 cron
May 11 19:12:56 raspberrypi kernel: [32753.663555] [ 2747] 1000 2747 1690 406 8 0 0 0 sendmail
May 11 19:12:56 raspberrypi kernel: [32753.663574] [ 2748] 1000 2748 1688 88 8 0 0 0 postdrop
May 11 19:12:56 raspberrypi kernel: [32753.663593] [ 2749] 0 2749 1689 472 7 0 0 0 cron
May 11 19:12:56 raspberrypi kernel: [32753.663613] [ 2760] 1000 2760 1690 390 8 0 0 0 sendmail
May 11 19:12:56 raspberrypi kernel: [32753.663632] [ 2761] 1000 2761 1688 88 8 0 0 0 postdrop
May 11 19:12:56 raspberrypi kernel: [32753.663651] [ 2763] 0 2763 1689 472 7 0 0 0 cron
May 11 19:12:56 raspberrypi kernel: [32753.663671] [ 2774] 1000 2774 1690 390 7 0 0 0 sendmail
May 11 19:12:56 raspberrypi kernel: [32753.663690] [ 2775] 1000 2775 1688 169 8 0 0 0 postdrop
May 11 19:12:56 raspberrypi kernel: [32753.663709] [ 2776] 0 2776 1689 472 7 0 0 0 cron
May 11 19:12:56 raspberrypi kernel: [32753.663728] [ 2787] 1000 2787 1690 385 7 0 0

@yeokm1

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yeokm1 commented Jun 6, 2016

@polmon Thanks for the effort in pointing things out. The issue now is that I'm using the Raspberry Pi only for Bluetooth purposes so I didn't test the internet connectivity problems.

I apologise in advance as I don't have the time right now to troubleshoot the issue.

@chrisnew

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chrisnew commented Jun 25, 2016

@polmon: It looks to me like journald has sucked up too much memory. Maybe try to tune journald to forget faster old log entries if space is getting thin.

@zbrozek

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zbrozek commented Dec 7, 2017

I might suggest setting the journald.conf to include:
Storage=volatile
This permits you to see what's happened this boot.

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