oops

Aug 22 23:17:01 raspberrypi CRON[1691]: (root) CMD (   cd / && run-parts --report /etc/cron.hourly)
Aug 22 23:18:20 raspberrypi kernel: [  234.817732] Unable to handle kernel NULL pointer dereference at virtual address 00000000 
Aug 22 23:18:20 raspberrypi kernel: [  234.821421] pgd = 71fd56dd 
Aug 22 23:18:20 raspberrypi kernel: [  234.823252] [00000000] *pgd=00000000 
Aug 22 23:18:20 raspberrypi kernel: [  234.825073] Internal error: Oops: 17 [#1] ARM 
Aug 22 23:18:20 raspberrypi kernel: [  234.826854] Modules linked in: bnep hci_uart btbcm serdev bluetooth ecdh_generic 8021q garp stp llc brcmfmac brcmutil sha256_generic cfg80211 rfkill raspberrypi_hwmon snd_bcm2835(C) hwmon snd_pcm snd_timer bcm2835_codec(C) snd v4l2_mem2mem bcm2835_v4l2(C) bcm2835_mmal_vchiq(C) v4l2_common videobuf2_dma_contig videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_common videodev media vc_sm_cma(C) uio_pdrv_genirq fixed uio ip_tables x_tables ipv6 
Aug 22 23:18:20 raspberrypi kernel: [  234.838816] CPU: 0 PID: 21 Comm: kworker/u2:1 Tainted: G         C        4.19.57+ #1244 
Aug 22 23:18:20 raspberrypi kernel: [  234.843007] Hardware name: BCM2835 
Aug 22 23:18:20 raspberrypi kernel: [  234.845100] Workqueue: writeback wb_workfn (flush-179:0) 
Aug 22 23:18:20 raspberrypi kernel: [  234.847243] PC is at ext4_bio_write_page+0x3fc/0x5a0 
Aug 22 23:18:20 raspberrypi kernel: [  234.849364] LR is at ext4_bio_write_page+0x3fc/0x5a0 
Aug 22 23:18:20 raspberrypi kernel: [  234.851427] pc : [<c0242c74>]    lr : [<c0242c74>]    psr: 60000113 
Aug 22 23:18:20 raspberrypi kernel: [  234.853525] sp : dae4db40  ip : 00000000  fp : dae4db84 
Aug 22 23:18:20 raspberrypi kernel: [  234.855629] r10: 00000000  r9 : c3052000  r8 : dae4dcd0 
Aug 22 23:18:20 raspberrypi kernel: [  234.857711] r7 : 00000000  r6 : 0005985e  r5 : db18d060  r4 : c3052000 
Aug 22 23:18:20 raspberrypi kernel: [  234.859757] r3 : 00001000  r2 : 00001000  r1 : db18d060  r0 : dae4dd90 
Aug 22 23:18:20 raspberrypi kernel: [  234.861721] Flags: nZCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment user 
Aug 22 23:18:20 raspberrypi kernel: [  234.863762] Control: 00c5387d  Table: 18d94008  DAC: 00000055 
Aug 22 23:18:20 raspberrypi kernel: [  234.865839] Process kworker/u2:1 (pid: 21, stack limit = 0x5b7df6b0) 
Aug 22 23:18:20 raspberrypi kernel: [  234.867951] Stack: (0xdae4db40 to 0xdae4e000) 
Aug 22 23:18:20 raspberrypi kernel: [  234.869983] db40: 00000000 da4b8c38 d397b4d0 dae4db58 c0117840 dae4dd90 0000085e dae4dca0 
Aug 22 23:18:20 raspberrypi kernel: [  234.874035] db60: db18d060 000020dd 00000000 00000bff dae4dca0 00000004 dae4dbac dae4db88 
Aug 22 23:18:20 raspberrypi kernel: [  234.878102] db80: c022226c c0242884 00000000 c01094e0 0000085f dae4dbf0 0005985f 00000000 
Aug 22 23:18:20 raspberrypi kernel: [  234.882192] dba0: dae4dc4c dae4dbb0 c0227894 c02221f4 00000400 00000000 c02226fc c011cab4 
Aug 22 23:18:20 raspberrypi kernel: [  234.886368] dbc0: dae4dc87 d397b4d0 dae4dcb8 dabdf078 d397b4d0 0000000f 00000869 dae4010f 
Aug 22 23:18:20 raspberrypi kernel: [  234.890779] dbe0: db18cfd0 db18cff4 db18d018 db18d03c db18d060 db18d084 db18d0a8 db18d0cc 
Aug 22 23:18:20 raspberrypi kernel: [  234.895525] dc00: db18d0f0 db18d114 db18d138 db18d15c db18d180 db18d1a4 db18d1c8 f141c4fc 
Aug 22 23:18:20 raspberrypi kernel: [  234.900438] dc20: 00000002 d397b4d0 dae4dd90 00000000 dabdf078 00000800 dae4dd90 00000000 
Aug 22 23:18:20 raspberrypi kernel: [  234.905565] dc40: dae4dd24 dae4dc50 c0228374 c0227628 00000000 dae4dc60 c052a9a0 c0529c3c 
Aug 22 23:18:20 raspberrypi kernel: [  234.910885] dc60: 00000001 00000000 da4c7c00 d397b5bc 00000000 00000001 da4c7ed0 00000c00 
Aug 22 23:18:20 raspberrypi kernel: [  234.916322] dc80: 00000000 00000035 21000040 db316b66 00000cd4 0000005c 00000000 00000035 
Aug 22 23:18:20 raspberrypi kernel: [  234.921746] dca0: d397b4d0 dae4dd90 0000085e 00000c00 ffffffff 000001b5 00059800 00000000 
Aug 22 23:18:20 raspberrypi kernel: [  234.927232] dcc0: 00000800 00000400 00000060 dae4dd08 dae4dd90 d5942460 dabe2690 00000001 
Aug 22 23:18:20 raspberrypi kernel: [  234.932720] dce0: 0005985e 00000000 00000101 0000005c 00000000 f141c4fc 00000001 dae4dd90 
Aug 22 23:18:20 raspberrypi kernel: [  234.938137] dd00: d397b5bc dae4dd90 00000c00 c09e3028 d397b5bc d397b4d0 dae4dd3c dae4dd28 
Aug 22 23:18:20 raspberrypi kernel: [  234.943630] dd20: c01189d4 c0227d8c d397b4d0 da4b8c38 dae4dd74 dae4dd40 c01a2f38 c01189b0 
Aug 22 23:18:20 raspberrypi kernel: [  234.949118] dd40: d397a8a0 00000007 00000000 d397b568 da4b8c38 da4b8c4c da4c7800 c09e3028 
Aug 22 23:18:20 raspberrypi kernel: [  234.954536] dd60: dae4deb8 d397b4d0 dae4de04 dae4dd78 c01a36a0 c01a2f00 c09e3028 00000c00 
Aug 22 23:18:20 raspberrypi kernel: [  234.960026] dd80: 00000000 ffffe686 dae4c000 000000d7 000003a2 00000000 00000000 00000000 
Aug 22 23:18:20 raspberrypi kernel: [  234.965519] dda0: ffffffff 7fffffff 00000000 00000012 00000000 00000000 00000000 00000000 
Aug 22 23:18:20 raspberrypi kernel: [  234.970945] ddc0: 00000000 00000000 00000000 00000000 00002193 f141c4fc 00000000 da4b8c38 
Aug 22 23:18:20 raspberrypi kernel: [  234.976435] dde0: da4c7800 00000000 dae4deb8 da4b8c4c d8b46b48 c09f38c0 dae4de3c dae4de08 
Aug 22 23:18:20 raspberrypi kernel: [  234.981926] de00: c01a3964 c01a34d0 ffffe686 ffffe690 dae4de3c dae4deb8 da4b8c38 da4b8c38 
Aug 22 23:18:20 raspberrypi kernel: [  234.987365] de20: c0a72450 da4b8cc0 ffffe686 c09fdc2c dae4de9c dae4de40 c01a3ba8 c01a38e4 
Aug 22 23:18:20 raspberrypi kernel: [  234.992848] de40: 7fffffff da4b8c54 da4b8cc0 da4b8c4c ffffe686 dae4de54 dae4de54 da53ce30 
Aug 22 23:18:20 raspberrypi kernel: [  234.998337] de60: da53ce30 dae4de64 dae4de64 f141c4fc 00000000 ffffe588 00000000 da4b8c38 
Aug 22 23:18:20 raspberrypi kernel: [  235.003771] de80: da4b8cc8 da4b8cc0 00000000 c01a427c dae4df0c dae4dea0 c01a4468 c01a39b4 
Aug 22 23:18:20 raspberrypi kernel: [  235.009245] dea0: f0287558 c09e3028 dae4decc dae41c00 daced400 c09ec178 7fffff30 00000000 
Aug 22 23:18:20 raspberrypi kernel: [  235.014733] dec0: dae4de50 00000000 0000000c 00000000 00000000 00000000 00000000 f141c4fc 
Aug 22 23:18:20 raspberrypi kernel: [  235.020171] dee0: dae4df0c da4b8cc8 dadf0e40 dac13200 00000000 dac1e200 00000000 da4b8ccc 
Aug 22 23:18:20 raspberrypi kernel: [  235.025640] df00: dae4df44 dae4df10 c003d228 c01a41c0 00000088 dac13200 dae4df44 dac13200 
Aug 22 23:18:20 raspberrypi kernel: [  235.031125] df20: dadf0e54 dac13214 c09f38c0 00000088 dac13200 dadf0e40 dae4df7c dae4df48 
Aug 22 23:18:20 raspberrypi kernel: [  235.036567] df40: c003d4cc c003d104 dae4df7c 00000000 c0042844 dadff580 dadf9fa0 00000000 
Aug 22 23:18:20 raspberrypi kernel: [  235.042025] df60: dadf0e40 c003d498 dadff598 dacffe88 dae4dfac dae4df80 c0042fd0 c003d4a4 
Aug 22 23:18:20 raspberrypi kernel: [  235.047515] df80: ffffffff dadf9fa0 c0042eb4 00000000 00000000 00000000 00000000 00000000 
Aug 22 23:18:20 raspberrypi kernel: [  235.052967] dfa0: 00000000 dae4dfb0 c00090ac c0042ec0 00000000 00000000 00000000 00000000 
Aug 22 23:18:20 raspberrypi kernel: [  235.058437] dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 
Aug 22 23:18:20 raspberrypi kernel: [  235.063928] dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 00000000 00000000 
Aug 22 23:18:20 raspberrypi kernel: [  235.069416] [<c0242c74>] (ext4_bio_write_page) from [<c022226c>] (mpage_submit_page+0x84/0xb0) 
Aug 22 23:18:20 raspberrypi kernel: [  235.074930] [<c022226c>] (mpage_submit_page) from [<c0227894>] (mpage_map_and_submit_extent+0x278/0x764) 
Aug 22 23:18:20 raspberrypi kernel: [  235.080485] [<c0227894>] (mpage_map_and_submit_extent) from [<c0228374>] (ext4_writepages+0x5f4/0x7c0) 
Aug 22 23:18:20 raspberrypi kernel: [  235.085997] [<c0228374>] (ext4_writepages) from [<c01189d4>] (do_writepages+0x30/0x8c) 
Aug 22 23:18:20 raspberrypi kernel: [  235.091489] [<c01189d4>] (do_writepages) from [<c01a2f38>] (__writeback_single_inode+0x44/0x2d4) 
Aug 22 23:18:20 raspberrypi kernel: [  235.097033] [<c01a2f38>] (__writeback_single_inode) from [<c01a36a0>] (writeback_sb_inodes+0x1dc/0x414) 
Aug 22 23:18:20 raspberrypi kernel: [  235.102543] [<c01a36a0>] (writeback_sb_inodes) from [<c01a3964>] (__writeback_inodes_wb+0x8c/0xd0) 
Aug 22 23:18:20 raspberrypi kernel: [  235.108050] [<c01a3964>] (__writeback_inodes_wb) from [<c01a3ba8>] (wb_writeback+0x200/0x27c) 
Aug 22 23:18:20 raspberrypi kernel: [  235.113599] [<c01a3ba8>] (wb_writeback) from [<c01a4468>] (wb_workfn+0x2b4/0x4dc) 
Aug 22 23:18:20 raspberrypi kernel: [  235.119112] [<c01a4468>] (wb_workfn) from [<c003d228>] (process_one_work+0x130/0x3a0) 
Aug 22 23:18:20 raspberrypi kernel: [  235.124599] [<c003d228>] (process_one_work) from [<c003d4cc>] (worker_thread+0x34/0x530) 
Aug 22 23:18:20 raspberrypi kernel: [  235.130125] [<c003d4cc>] (worker_thread) from [<c0042fd0>] (kthread+0x11c/0x158) 
Aug 22 23:18:20 raspberrypi kernel: [  235.135618] [<c0042fd0>] (kthread) from [<c00090ac>] (ret_from_fork+0x14/0x28) 
Aug 22 23:18:20 raspberrypi kernel: [  235.138403] Exception stack(0xdae4dfb0 to 0xdae4dff8) 
Aug 22 23:18:20 raspberrypi kernel: [  235.141175] dfa0:                                     00000000 00000000 00000000 00000000 
Aug 22 23:18:20 raspberrypi kernel: [  235.146570] dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 
Aug 22 23:18:20 raspberrypi kernel: [  235.151871] dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 
Aug 22 23:18:20 raspberrypi kernel: [  235.154536] Code: e1a02000 e1a01005 e5980000 ebfd77db (e1c821d0)  
Aug 22 23:18:20 raspberrypi kernel: [  235.157386] ---[ end trace c3ccc9cf9fd1e8d3 ]---
Aug 22 23:18:20 raspberrypi kernel: [  235.160030] ------------[ cut here ]------------
Aug 22 23:18:20 raspberrypi kernel: [  235.162591] WARNING: CPU: 0 PID: 21 at kernel/exit.c:782 do_exit+0x64/0xad0
Aug 22 23:18:20 raspberrypi kernel: [  235.165150] Modules linked in: bnep hci_uart btbcm serdev bluetooth ecdh_generic 8021q garp stp llc brcmfmac brcmutil sha256_generic cfg80211 rfkill raspberrypi_hwmon snd_bcm2835(C) hwmon snd_pcm snd_timer bcm2835_codec(C) snd v4l2_mem2mem bcm2835_v4l2(C) bcm2835_mmal_vchiq(C) v4l2_common videobuf2_dma_contig videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_common videodev media vc_sm_cma(C) uio_pdrv_genirq fixed uio ip_tables x_tables ipv6
Aug 22 23:18:20 raspberrypi kernel: [  235.180403] CPU: 0 PID: 21 Comm: kworker/u2:1 Tainted: G      D  C        4.19.57+ #1244
Aug 22 23:18:20 raspberrypi kernel: [  235.185360] Hardware name: BCM2835
Aug 22 23:18:20 raspberrypi kernel: [  235.187779] Workqueue: writeback wb_workfn (flush-179:0)
Aug 22 23:18:20 raspberrypi kernel: [  235.190206] [<c0017edc>] (unwind_backtrace) from [<c0014e24>] (show_stack+0x20/0x24)
Aug 22 23:18:20 raspberrypi kernel: [  235.194897] [<c0014e24>] (show_stack) from [<c06b5410>] (dump_stack+0x20/0x28)
Aug 22 23:18:20 raspberrypi kernel: [  235.197451] [<c06b5410>] (dump_stack) from [<c0024450>] (__warn+0xf4/0x11c)
Aug 22 23:18:20 raspberrypi kernel: [  235.199908] [<c0024450>] (__warn) from [<c00245a8>] (warn_slowpath_null+0x4c/0x58)
Aug 22 23:18:20 raspberrypi kernel: [  235.204487] [<c00245a8>] (warn_slowpath_null) from [<c002717c>] (do_exit+0x64/0xad0)
Aug 22 23:18:20 raspberrypi kernel: [  235.209330] [<c002717c>] (do_exit) from [<c0014fac>] (die+0x184/0x2a4)
Aug 22 23:18:20 raspberrypi kernel: [  235.211893] [<c0014fac>] (die) from [<c001ad24>] (__do_kernel_fault.part.0+0x64/0x84)
Aug 22 23:18:20 raspberrypi kernel: [  235.216884] [<c001ad24>] (__do_kernel_fault.part.0) from [<c06d1308>] (do_page_fault+0x23c/0x3b8)
Aug 22 23:18:20 raspberrypi kernel: [  235.221814] [<c06d1308>] (do_page_fault) from [<c001ab44>] (do_DataAbort+0x50/0xf4)
Aug 22 23:18:20 raspberrypi kernel: [  235.226830] [<c001ab44>] (do_DataAbort) from [<c0009914>] (__dabt_svc+0x54/0x80)
Aug 22 23:18:20 raspberrypi kernel: [  235.231785] Exception stack(0xdae4daf0 to 0xdae4db38)
Aug 22 23:18:20 raspberrypi kernel: [  235.234280] dae0:                                     dae4dd90 db18d060 00001000 00001000
Aug 22 23:18:20 raspberrypi kernel: [  235.239290] db00: c3052000 db18d060 0005985e 00000000 dae4dcd0 c3052000 00000000 dae4db84
Aug 22 23:18:20 raspberrypi kernel: [  235.244363] db20: 00000000 dae4db40 c0242c74 c0242c74 60000113 ffffffff
Aug 22 23:18:20 raspberrypi kernel: [  235.247003] [<c0009914>] (__dabt_svc) from [<c0242c74>] (ext4_bio_write_page+0x3fc/0x5a0)
Aug 22 23:18:20 raspberrypi kernel: [  235.252140] [<c0242c74>] (ext4_bio_write_page) from [<c022226c>] (mpage_submit_page+0x84/0xb0)
Aug 22 23:18:20 raspberrypi kernel: [  235.257318] [<c022226c>] (mpage_submit_page) from [<c0227894>] (mpage_map_and_submit_extent+0x278/0x764)
Aug 22 23:18:20 raspberrypi kernel: [  235.262544] [<c0227894>] (mpage_map_and_submit_extent) from [<c0228374>] (ext4_writepages+0x5f4/0x7c0)
Aug 22 23:18:20 raspberrypi kernel: [  235.267875] [<c0228374>] (ext4_writepages) from [<c01189d4>] (do_writepages+0x30/0x8c)
Aug 22 23:18:20 raspberrypi kernel: [  235.273072] [<c01189d4>] (do_writepages) from [<c01a2f38>] (__writeback_single_inode+0x44/0x2d4)
Aug 22 23:18:20 raspberrypi kernel: [  235.278393] [<c01a2f38>] (__writeback_single_inode) from [<c01a36a0>] (writeback_sb_inodes+0x1dc/0x414)
Aug 22 23:18:20 raspberrypi kernel: [  235.283681] [<c01a36a0>] (writeback_sb_inodes) from [<c01a3964>] (__writeback_inodes_wb+0x8c/0xd0)
Aug 22 23:18:20 raspberrypi kernel: [  235.289025] [<c01a3964>] (__writeback_inodes_wb) from [<c01a3ba8>] (wb_writeback+0x200/0x27c)
Aug 22 23:18:20 raspberrypi kernel: [  235.294521] [<c01a3ba8>] (wb_writeback) from [<c01a4468>] (wb_workfn+0x2b4/0x4dc)
Aug 22 23:18:20 raspberrypi kernel: [  235.300054] [<c01a4468>] (wb_workfn) from [<c003d228>] (process_one_work+0x130/0x3a0)
Aug 22 23:18:20 raspberrypi kernel: [  235.305551] [<c003d228>] (process_one_work) from [<c003d4cc>] (worker_thread+0x34/0x530)
Aug 22 23:18:20 raspberrypi kernel: [  235.311125] [<c003d4cc>] (worker_thread) from [<c0042fd0>] (kthread+0x11c/0x158)
Aug 22 23:18:20 raspberrypi kernel: [  235.316711] [<c0042fd0>] (kthread) from [<c00090ac>] (ret_from_fork+0x14/0x28)
Aug 22 23:18:20 raspberrypi kernel: [  235.319536] Exception stack(0xdae4dfb0 to 0xdae4dff8)
Aug 22 23:18:20 raspberrypi kernel: [  235.322283] dfa0:                                     00000000 00000000 00000000 00000000
Aug 22 23:18:20 raspberrypi kernel: [  235.327738] dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
Aug 22 23:18:20 raspberrypi kernel: [  235.333098] dfe0: 00000000 00000000 00000000 00000000 00000013 00000000
Aug 22 23:18:20 raspberrypi kernel: [  235.335797] ---[ end trace c3ccc9cf9fd1e8d4 ]---