Hello! I'm seeing the following backtrace rarely which seems to be bcache related: [ 8996.665841] ------------[ cut here ]------------ [ 8996.665847] WARNING: CPU: 5 PID: 152 at kernel/workqueue.c:2035 process_one_work+0x43/0x330 [ 8996.665848] Modules linked in: cifs ccm rfcomm fuse bridge stp llc xfs cachefiles bnep snd_hda_codec_hdmi snd_hda_codec_realtek btusb snd_hda_codec_generic btintel bluetooth snd_hda_intel iTCO_wdt snd_hda_codec snd_hda_core snd_pcm snd_timer rfkill ecdh_generic af_packet snd iTCO_vendor_support kvm_intel kvm soundcore lpc_ich rtc_cmos irqbypass uas usb_storage r8168(O) nvidia_drm(PO) vboxpci(O) vboxnetadp(O) vboxnetflt(O) vboxdrv(O) nvidia_uvm(PO) nvidia_modeset(PO) nvidia(PO) nct6775 hwmon_vid coretemp hwmon efivarfs [ 8996.665872] CPU: 5 PID: 152 Comm: bcache Tainted: P O 4.14.9-ck #1 [ 8996.665873] Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./Z68 Pro3, BIOS L2.16A 02/22/2013 [ 8996.665880] task: ffff880419bbd5c0 task.stack: ffffc900003b4000 [ 8996.665882] RIP: 0010:process_one_work+0x43/0x330 [ 8996.665883] RSP: 0018:ffffc900003b7e78 EFLAGS: 00010006 [ 8996.665884] RAX: 0000000000000005 RBX: ffff88041905d540 RCX: ffff88042f21b0a0 [ 8996.665884] RDX: ffff88042f21b098 RSI: ffff880411008f08 RDI: ffff88041905d540 [ 8996.665885] RBP: ffff88042f21b080 R08: fffffffffffffffc R09: 0000000000000000 [ 8996.665886] R10: 0000000000000000 R11: 0000000000000017 R12: ffff88042f224200 [ 8996.665886] R13: 0000000000000000 R14: ffff88042f224280 R15: ffff880411008f08 [ 8996.665887] FS: 0000000000000000(0000) GS:ffff88042f340000(0000) knlGS:0000000000000000 [ 8996.665888] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 8996.665889] CR2: 00000000000000b0 CR3: 0000000002c0a004 CR4: 00000000001606e0 [ 8996.665889] Call Trace: [ 8996.665894] rescuer_thread+0x20d/0x380 [ 8996.665895] kthread+0xf2/0x130 [ 8996.665897] ? worker_thread+0x3e0/0x3e0 [ 8996.665898] ? kthread_create_on_node+0x40/0x40 [ 8996.665901] ret_from_fork+0x1f/0x30 [ 8996.665902] Code: c0 41 83 e4 04 4c 0f 45 e0 49 8b 44 24 08 44 8b a8 00 01 00 00 41 83 e5 20 f6 45 10 04 75 0e 65 8b 05 aa 13 f7 7e 3b 45 04 74 02 <0f> ff 48 b9 eb 83 b5 80 46 86 c8 61 49 0f af cf 48 c1 e9 3a 48 [ 8996.665923] ---[ end trace 97ac64ac8121d8c7 ]--- This was also seen with 4.13, maybe earlier. It may be related to using the ck patchset but first, I'd like to ask here. -- Regards, Kai Replies to list-only preferred. -- To unsubscribe from this list: send the line "unsubscribe linux-bcache" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
