OOM killing X server in dom0

gistfile1.txt

Sep 03 17:34:16 dom0 root[10798]: /etc/xen/scripts/block-snapshot: add XENBUS_PATH=backend/vbd/117/51712
Sep 03 17:34:16 dom0 root[10820]: /etc/xen/scripts/block: add XENBUS_PATH=backend/vbd/117/51728
Sep 03 17:34:16 dom0 root[10823]: /etc/xen/scripts/block: add XENBUS_PATH=backend/vbd/117/51744
Sep 03 17:34:16 dom0 root[10824]: /etc/xen/scripts/block: add XENBUS_PATH=backend/vbd/117/51760
Sep 03 17:34:16 dom0 root[10854]: /etc/xen/scripts/block-snapshot: Writing backend/vbd/117/51712/node /dev/mapper/snapshot-fd02:18351490-fd02:18351941 to xenstore.
Sep 03 17:34:16 dom0 root[10878]: /etc/xen/scripts/block-snapshot: Writing backend/vbd/117/51712/physical-device fd:7 to xenstore.
Sep 03 17:34:16 dom0 root[10889]: /etc/xen/scripts/block-snapshot: Writing backend/vbd/117/51712/hotplug-status connected to xenstore.
Sep 03 17:34:16 dom0 root[10942]: /etc/xen/scripts/block: Writing backend/vbd/117/51728/node /dev/loop36 to xenstore.
Sep 03 17:34:16 dom0 root[10952]: /etc/xen/scripts/block: Writing backend/vbd/117/51728/physical-device 7:24 to xenstore.
Sep 03 17:34:16 dom0 root[10960]: /etc/xen/scripts/block: Writing backend/vbd/117/51728/hotplug-status connected to xenstore.
Sep 03 17:34:17 dom0 root[10993]: /etc/xen/scripts/block: Writing backend/vbd/117/51744/node /dev/loop42 to xenstore.
Sep 03 17:34:17 dom0 root[11003]: /etc/xen/scripts/block: Writing backend/vbd/117/51744/physical-device 7:2a to xenstore.
Sep 03 17:34:17 dom0 root[11010]: /etc/xen/scripts/block: Writing backend/vbd/117/51744/hotplug-status connected to xenstore.
Sep 03 17:34:18 dom0 root[11295]: /etc/xen/scripts/block: Writing backend/vbd/117/51760/node /dev/loop3 to xenstore.
Sep 03 17:34:18 dom0 root[11299]: /etc/xen/scripts/block: Writing backend/vbd/117/51760/physical-device 7:3 to xenstore.
Sep 03 17:34:18 dom0 root[11301]: /etc/xen/scripts/block: Writing backend/vbd/117/51760/hotplug-status connected to xenstore.
Sep 03 17:34:20 dom0 kernel: xen-blkback: backend/vbd/117/51712: using 4 queues, protocol 1 (x86_64-abi) persistent grants
Sep 03 17:34:20 dom0 kernel: xen-blkback: backend/vbd/117/51728: using 4 queues, protocol 1 (x86_64-abi) persistent grants
Sep 03 17:34:20 dom0 kernel: xenwatch invoked oom-killer: gfp_mask=0x240c0c0(GFP_KERNEL|__GFP_COMP|__GFP_ZERO), nodemask=0, order=3, oom_score_adj=0
Sep 03 17:34:20 dom0 kernel: xenwatch cpuset=/ mems_allowed=0
Sep 03 17:34:20 dom0 kernel: CPU: 2 PID: 41 Comm: xenwatch Not tainted 4.9.35-20.pvops.qubes.x86_64 #1
Sep 03 17:34:20 dom0 kernel:  ffffc900011c7948 ffffffff813e45e3 ffffc900011c7b18 ffff88002312e000
Sep 03 17:34:20 dom0 kernel:  ffffc900011c79c0 ffffffff8123fd7d 0000000000000003 0000000000000000
Sep 03 17:34:20 dom0 kernel:  0000000000000000 0000000000000000 ffff880127359b20 0000000000000001
Sep 03 17:34:20 dom0 kernel: Call Trace:
Sep 03 17:34:20 dom0 kernel:  [<ffffffff813e45e3>] dump_stack+0x63/0x90
Sep 03 17:34:20 dom0 kernel:  [<ffffffff8123fd7d>] dump_header+0x7b/0x1fd
Sep 03 17:34:20 dom0 kernel:  [<ffffffff817daf9a>] ? _raw_spin_unlock_irqrestore+0x1a/0x20
Sep 03 17:34:20 dom0 kernel:  [<ffffffff811b6939>] oom_kill_process+0x219/0x3e0
Sep 03 17:34:20 dom0 kernel:  [<ffffffff811b6e33>] out_of_memory+0x143/0x4d0
Sep 03 17:34:20 dom0 kernel:  [<ffffffff811bc79d>] __alloc_pages_slowpath+0xbbd/0xc10
Sep 03 17:34:20 dom0 kernel:  [<ffffffff811bca46>] __alloc_pages_nodemask+0x256/0x2c0
Sep 03 17:34:20 dom0 kernel:  [<ffffffff81211105>] alloc_pages_current+0x95/0x140
Sep 03 17:34:20 dom0 kernel:  [<ffffffff811dd018>] kmalloc_order+0x18/0x40
Sep 03 17:34:20 dom0 kernel:  [<ffffffff811dd064>] kmalloc_order_trace+0x24/0xa0
Sep 03 17:34:20 dom0 kernel:  [<ffffffffc000e49f>] ? read_per_ring_refs+0x30f/0x400 [xen_blkback]
Sep 03 17:34:20 dom0 kernel:  [<ffffffffc000e2a4>] read_per_ring_refs+0x114/0x400 [xen_blkback]
Sep 03 17:34:20 dom0 kernel:  [<ffffffff813f1209>] ? snprintf+0x49/0x60
Sep 03 17:34:20 dom0 kernel:  [<ffffffffc000e8e1>] connect_ring.isra.7+0x351/0x4c0 [xen_blkback]
Sep 03 17:34:20 dom0 kernel:  [<ffffffffc000f23a>] frontend_changed+0xda/0x140 [xen_blkback]
Sep 03 17:34:20 dom0 kernel:  [<ffffffff814ceb83>] xenbus_otherend_changed+0x103/0x110
Sep 03 17:34:20 dom0 kernel:  [<ffffffff814ce0d8>] ? xenwatch_thread+0x88/0x120
Sep 03 17:34:20 dom0 kernel:  [<ffffffff814ce050>] ? register_xenbus_watch+0xf0/0xf0
Sep 03 17:34:20 dom0 kernel:  [<ffffffff814cfb60>] frontend_changed+0x10/0x20
Sep 03 17:34:20 dom0 kernel:  [<ffffffff814ce0c7>] xenwatch_thread+0x77/0x120
Sep 03 17:34:20 dom0 kernel:  [<ffffffff810e4d80>] ? wake_atomic_t_function+0x70/0x70
Sep 03 17:34:20 dom0 kernel:  [<ffffffff810c0566>] kthread+0xe6/0x100
Sep 03 17:34:20 dom0 kernel:  [<ffffffff810c0480>] ? kthread_park+0x60/0x60
Sep 03 17:34:20 dom0 kernel:  [<ffffffff817db655>] ret_from_fork+0x25/0x30
Sep 03 17:34:20 dom0 kernel: Mem-Info:
Sep 03 17:34:20 dom0 kernel: active_anon:85852 inactive_anon:95391 isolated_anon:0
                              active_file:66778 inactive_file:64635 isolated_file:0
                              unevictable:109 dirty:339 writeback:0 unstable:0
                              slab_reclaimable:14415 slab_unreclaimable:37540
                              mapped:50226 shmem:130677 pagetables:10267 bounce:0
                              free:30254 free_pcp:127 free_cma:0
Sep 03 17:34:20 dom0 kernel: Node 0 active_anon:343408kB inactive_anon:381564kB active_file:267112kB inactive_file:258540kB unevictable:436kB isolated(anon):0kB isolated(file):0kB mapped:2009
Sep 03 17:34:20 dom0 kernel: Node 0 DMA free:15352kB min:28kB low:40kB high:52kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:1
Sep 03 17:34:20 dom0 kernel: lowmem_reserve[]: 0 3079 3871 3871
Sep 03 17:34:20 dom0 kernel: Node 0 DMA32 free:97668kB min:6316kB low:9468kB high:12620kB active_anon:210072kB inactive_anon:257176kB active_file:200424kB inactive_file:187100kB unevictable:3
Sep 03 17:34:20 dom0 kernel: lowmem_reserve[]: 0 0 792 792
Sep 03 17:34:20 dom0 kernel: Node 0 Normal free:7996kB min:1624kB low:2432kB high:3240kB active_anon:133188kB inactive_anon:124536kB active_file:66772kB inactive_file:71440kB unevictable:116k
Sep 03 17:34:20 dom0 kernel: lowmem_reserve[]: 0 0 0 0
Sep 03 17:34:20 dom0 kernel: Node 0 DMA: 0*4kB 1*8kB (U) 1*16kB (U) 1*32kB (U) 1*64kB (U) 1*128kB (U) 1*256kB (U) 1*512kB (U) 0*1024kB 1*2048kB (M) 3*4096kB (M) = 15352kB
Sep 03 17:34:20 dom0 kernel: Node 0 DMA32: 7627*4kB (UMEH) 5306*8kB (UMEH) 1501*16kB (UMEH) 15*32kB (H) 1*64kB (H) 2*128kB (H) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 97772kB
Sep 03 17:34:20 dom0 kernel: Node 0 Normal: 602*4kB (UME) 451*8kB (UME) 118*16kB (UM) 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 7904kB
Sep 03 17:34:20 dom0 kernel: 263560 total pagecache pages
Sep 03 17:34:20 dom0 kernel: 1444 pages in swap cache
Sep 03 17:34:20 dom0 kernel: Swap cache stats: add 1611017, delete 1609573, find 2048297/2185188
Sep 03 17:34:20 dom0 kernel: Free swap  = 829976kB
Sep 03 17:34:20 dom0 kernel: Total swap = 1048572kB
Sep 03 17:34:20 dom0 kernel: 1048575 pages RAM
Sep 03 17:34:20 dom0 kernel: 0 pages HighMem/MovableOnly
Sep 03 17:34:20 dom0 kernel: 489552 pages reserved
Sep 03 17:34:20 dom0 kernel: 0 pages hwpoisoned
Sep 03 17:34:20 dom0 kernel: [ pid ]   uid  tgid total_vm      rss nr_ptes nr_pmds swapents oom_score_adj name
Sep 03 17:34:20 dom0 kernel: [  706]     0   706    25887     5390      55       3      119             0 systemd-journal
(...)
Sep 03 17:34:20 dom0 kernel: Out of memory: Kill process 6487 (Xorg) score 48 or sacrifice child
Sep 03 17:34:20 dom0 kernel: Killed process 6487 (Xorg) total-vm:2366372kB, anon-rss:7780kB, file-rss:7984kB, shmem-rss:122344kB