Hello.
I get a kernel error every time I create LVM snapshot - at the creation
and at boot time, though the snapshot itself is working properly.
Sorry if I'm writing to the incorrect mailing list, please direct me to
the correct one. (I wasn't able to find LVM related).
Linux nexus 4.19.69 #2 SMP Thu Aug 29 16:33:35 CDT 2019 x86_64 Intel(R)
Xeon(R) E-2174G CPU @ 3.80GHz GenuineIntel GNU/Linux
At boot log:
[ 17.160402] ------------[ cut here ]------------
[ 17.160900] generic_make_request: Trying to write to read-only
block-device dm-4 (partno 0)
[ 17.161424] WARNING: CPU: 3 PID: 941 at block/blk-core.c:2176
generic_make_request_checks+0x28d/0x6a0
[ 17.161935] Modules linked in: fuse hid_generic usbhid hid i2c_dev
mei_wdt eeepc_wmi asus_wmi evdev sparse_keymap rfkill wmi_bmof
snd_hda_codec_hdmi coretemp snd_hda_codec_realtek intel_rapl
snd_hda_codec_generic x86_pkg_temp_thermal intel_powerclamp kvm_intel
crct10dif_pclmul crc32_pclmul i915 crc32c_intel ghash_clmulni_intel
intel_cstate snd_hda_intel snd_hda_codec kvmgt vfio_mdev intel_rapl_perf
mdev vfio_iommu_type1 vfio kvm snd_hda_core snd_hwdep igb snd_pcm
snd_timer snd e1000e soundcore irqbypass cec rc_core hwmon dca i2c_i801
drm_kms_helper drm intel_gtt agpgart thermal fan i2c_algo_bit
fb_sys_fops syscopyarea sysfillrect sysimgblt i2c_core video mei_me mei
xhci_pci xhci_hcd button pcc_cpufreq wmi acpi_pad acpi_tad loop
dm_snapshot dm_bufio ext4 mbcache jbd2
[ 17.165955] CPU: 3 PID: 941 Comm: kworker/3:3 Not tainted 4.19.69 #2
[ 17.166464] Hardware name: ASUSTeK COMPUTER INC. System Product
Name/WS C246 PRO, BIOS 1003 06/04/2019
[ 17.166952] Workqueue: kcopyd do_work
[ 17.167467] RIP: 0010:generic_make_request_checks+0x28d/0x6a0
[ 17.167952] Code: 5c 03 00 00 48 89 ef 48 8d 74 24 08 c6 05 11 47 f3
00 01 e8 55 60 01 00 48 c7 c7 d0 5d 08 bd 48 89 c6 44 89 e2 e8 22 cd cc
ff <0f> 0b 4c 8b 65 08 8b 45 30 c1 e8 09 49 8b 74 24 50 85 c0 0f 84 5f
[ 17.169020] RSP: 0018:ffff9df3c400faf8 EFLAGS: 00010282
[ 17.169533] RAX: 0000000000000000 RBX: ffff927c05350988 RCX:
0000000000000311
[ 17.170049] RDX: 0000000000000001 RSI: 0000000000000082 RDI:
0000000000000246
[ 17.170562] RBP: ffff927c06a64900 R08: 0000000000000000 R09:
0000000000000311
[ 17.171106] R10: 0000000000aaaaaa R11: 0000000000000000 R12:
0000000000000000
[ 17.171616] R13: 0000000000000000 R14: 0000000000001000 R15:
ffff927c05472b80
[ 17.172130] FS: 0000000000000000(0000) GS:ffff927c0bb80000(0000)
knlGS:0000000000000000
[ 17.172646] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 17.173191] CR2: 00007f40a05f9ff0 CR3: 000000015a20a004 CR4:
00000000003606e0
[ 17.173711] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
0000000000000000
[ 17.174238] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7:
0000000000000400
[ 17.174752] Call Trace:
[ 17.175279] ? kmem_cache_alloc+0x37/0x1c0
[ 17.175771] generic_make_request+0x5b/0x400
[ 17.176247] submit_bio+0x43/0x130
[ 17.176726] ? bio_add_page+0x48/0x60
[ 17.177195] dispatch_io+0x1c8/0x460
[ 17.177689] ? dm_hash_remove_all.cold+0x21/0x21
[ 17.178168] ? list_get_page+0x30/0x30
[ 17.178624] ? dm_kcopyd_do_callback+0x40/0x40
[ 17.179102] dm_io+0x11c/0x210
[ 17.179545] ? dm_hash_remove_all.cold+0x21/0x21
[ 17.179990] ? list_get_page+0x30/0x30
[ 17.180429] run_io_job+0xd4/0x1c0
[ 17.180863] ? dm_kcopyd_do_callback+0x40/0x40
[ 17.181293] ? dm_kcopyd_client_destroy+0x140/0x140
[ 17.181719] process_jobs+0x82/0x1b0
[ 17.182147] do_work+0xb9/0xf0
[ 17.182570] process_one_work+0x1ba/0x3d0
[ 17.182992] worker_thread+0x4d/0x3d0
[ 17.183441] ? process_one_work+0x3d0/0x3d0
[ 17.183857] kthread+0x117/0x130
[ 17.184270] ? kthread_create_worker_on_cpu+0x70/0x70
[ 17.184680] ret_from_fork+0x35/0x40
[ 17.185082] ---[ end trace f01c6b7a501faa64 ]---
Best regards,
Dmitrij Gusev
