Le 4/05/19 à 08:41, Greg KH a écrit : > On Fri, May 03, 2019 at 10:17:39PM +0200, François Valenduc wrote: >> Commit 8c37f7c23c02f6ac020ffdc746026c2363b23a5a ( workqueue: Try to >> catch flush_work() without INIT_WORK().) causes the following warning >> when mounting encrypted filesystems: >> >> May 3 21:29:33 pc-francois kernel: [ 20.202934] WARNING: CPU: 1 PID: >> 1719 at kernel/workqueue.c:2911 __flush_work+0x1a4/0x1c0 >> May 3 21:29:33 pc-francois kernel: [ 20.205470] Modules linked in: >> uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videodev >> videobuf2_common arc4 rtl8188ee rtl_pci rtlwifi mac80211 cfg80211 >> snd_hda_codec_hdmi alx mdio psmou >> se snd_hda_codec_generic snd_hda_intel snd_hda_codec snd_hda_core >> snd_pcm snd_timer snd soundcore evdev coretemp battery nls_utf8 >> nls_cp850 efivars vfat fat ac hwmon vboxpci(O) vboxnetadp(O) >> vboxnetflt(O) vboxdrv(O) nbd kvm_intel nfsd au >> th_rpcgss kvm irqbypass dm_thin_pool dm_persistent_data dm_bio_prison >> dm_round_robin dm_multipath xts cbc fuse xfs nfs lockd grace sunrpc >> btrfs xor zstd_decompress zstd_compress xxhash raid6_pq crc32c_generic >> libcrc32c zlib_inflate ext4 >> mbcache jbd2 dm_snapshot dm_bufio dm_crypt dm_mirror dm_region_hash >> dm_log dm_mod dax ohci_hcd sr_mod sd_mod cdrom usb_storage hid_generic >> May 3 21:29:33 pc-francois kernel: [ 20.218000] usbhid hid xhci_pci >> aesni_intel aes_x86_64 crypto_simd cryptd glue_helper ehci_pci ahci >> xhci_hcd ehci_hcd libahci usbcore usb_common >> May 3 21:29:33 pc-francois kernel: [ 20.220780] CPU: 1 PID: 1719 >> Comm: systemd-cryptse Tainted: G W O 4.19.39-rc1 #41 >> May 3 21:29:33 pc-francois kernel: [ 20.223587] Hardware name: >> TOSHIBA SATELLITE C70-A/Type2 - Board Product Name1, BIOS 1.00 04/30/2013 >> May 3 21:29:33 pc-francois kernel: [ 20.226435] RIP: >> 0010:__flush_work+0x1a4/0x1c0 >> May 3 21:29:33 pc-francois kernel: [ 20.229285] Code: 20 e9 f8 fe ff >> ff fb 31 c0 eb 8e 8b 4d 00 48 8b 55 08 83 e1 08 48 0f ba 6d 00 03 80 c9 >> f0 e9 54 ff ff ff 0f 0b e9 6f ff ff ff <0f> 0b 31 c0 e9 66 ff ff ff e8 >> 7e 8b fe ff 66 66 2e 0 >> f 1f 84 00 00 >> May 3 21:29:33 pc-francois kernel: [ 20.235471] RSP: >> 0018:ffff956f8033fb50 EFLAGS: 00010246 >> May 3 21:29:33 pc-francois kernel: [ 20.238618] RAX: 0000000000000000 >> RBX: ffff8ff5bce9b9d0 RCX: 0000000000000000 >> May 3 21:29:33 pc-francois kernel: [ 20.241801] RDX: 0000000000000001 >> RSI: 0000000000000001 RDI: ffff8ff5bce9b9d0 >> May 3 21:29:33 pc-francois kernel: [ 20.244991] RBP: ffff8ff5bce9b9d0 >> R08: 0000000000000050 R09: ffff8ff5c3019380 >> May 3 21:29:33 pc-francois kernel: [ 20.248178] R10: 0000000000000ab8 >> R11: ffff8ff5c305e688 R12: 0000000000000000 >> May 3 21:29:33 pc-francois kernel: [ 20.251389] R13: ffff956f8033fbe8 >> R14: ffffffff8c0609f0 R15: ffff956f8033fd08 >> May 3 21:29:33 pc-francois kernel: [ 20.254624] FS: >> 00007feaa0d15840(0000) GS:ffff8ff5c3040000(0000) knlGS:0000000000000000 >> May 3 21:29:33 pc-francois kernel: [ 20.257908] CS: 0010 DS: 0000 >> ES: 0000 CR0: 0000000080050033 >> May 3 21:29:33 pc-francois kernel: [ 20.261198] CR2: 00007f9316ec25a0 >> CR3: 000000033cf8c003 CR4: 00000000001606a0 >> May 3 21:29:33 pc-francois kernel: [ 20.264520] Call Trace: >> May 3 21:29:33 pc-francois kernel: [ 20.267837] ? >> _raw_spin_unlock_irq+0xe/0x20 >> May 3 21:29:33 pc-francois kernel: [ 20.271173] ? >> finish_task_switch+0x8a/0x2a0 >> May 3 21:29:33 pc-francois kernel: [ 20.274499] ? __switch_to+0x2e/0x380 >> May 3 21:29:33 pc-francois kernel: [ 20.277820] ? >> __switch_to_asm+0x34/0x70 >> May 3 21:29:33 pc-francois kernel: [ 20.281136] >> __cancel_work_timer+0xfe/0x180 >> May 3 21:29:33 pc-francois kernel: [ 20.284315] ? >> remove_all+0x30/0x30 [dm_mod] >> May 3 21:29:33 pc-francois kernel: [ 20.287332] ? >> _raw_spin_unlock_irqrestore+0xf/0x30 >> May 3 21:29:33 pc-francois kernel: [ 20.290326] ? >> remove_all+0x30/0x30 [dm_mod] >> May 3 21:29:33 pc-francois kernel: [ 20.293300] blk_sync_queue+0x1d/0x80 >> May 3 21:29:33 pc-francois kernel: [ 20.296253] >> blk_cleanup_queue+0xc0/0x140 >> May 3 21:29:33 pc-francois kernel: [ 20.299198] >> cleanup_mapped_device+0xc3/0x100 [dm_mod] >> May 3 21:29:33 pc-francois kernel: [ 20.302158] free_dev+0x38/0xa0 >> [dm_mod] >> May 3 21:29:33 pc-francois kernel: [ 20.305113] ? >> remove_all+0x30/0x30 [dm_mod] >> May 3 21:29:33 pc-francois kernel: [ 20.308044] >> dev_remove+0xce/0x110 [dm_mod] >> May 3 21:29:33 pc-francois kernel: [ 20.310961] >> ctl_ioctl+0x1a7/0x3a0 [dm_mod] >> May 3 21:29:33 pc-francois kernel: [ 20.313881] >> dm_ctl_ioctl+0x5/0x10 [dm_mod] >> May 3 21:29:33 pc-francois kernel: [ 20.316810] do_vfs_ioctl+0xa0/0x610 >> May 3 21:29:33 pc-francois kernel: [ 20.319738] ? >> ksys_semctl+0x124/0x160 >> May 3 21:29:33 pc-francois kernel: [ 20.322674] ? >> preempt_count_add+0x74/0xa0 >> May 3 21:29:33 pc-francois kernel: [ 20.325628] ksys_ioctl+0x35/0x70 >> May 3 21:29:33 pc-francois kernel: [ 20.328586] >> __x64_sys_ioctl+0x11/0x20 >> May 3 21:29:33 pc-francois kernel: [ 20.331536] do_syscall_64+0x43/0xf0 >> May 3 21:29:33 pc-francois kernel: [ 20.334493] >> entry_SYSCALL_64_after_hwframe+0x44/0xa9 >> May 3 21:29:33 pc-francois kernel: [ 20.337478] RIP: 0033:0x7feaa2d10b17 >> May 3 21:29:33 pc-francois kernel: [ 20.340462] Code: 00 00 00 75 0c >> 48 c7 c0 ff ff ff ff 48 83 c4 18 c3 e8 7d e1 01 00 66 2e 0f 1f 84 00 00 >> 00 00 00 0f 1f 00 b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 >> 8b 0d 49 b3 0c 00 f7 d8 64 89 01 48 >> May 3 21:29:33 pc-francois kernel: [ 20.346929] RSP: >> 002b:00007ffc4e75db58 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 >> May 3 21:29:33 pc-francois kernel: [ 20.350202] RAX: ffffffffffffffda >> RBX: 00007feaa15156e0 RCX: 00007feaa2d10b17 >> May 3 21:29:33 pc-francois kernel: [ 20.353493] RDX: 00005585e2127a80 >> RSI: 00000000c138fd04 RDI: 0000000000000004 >> May 3 21:29:33 pc-francois kernel: [ 20.356793] RBP: 00007feaa154f4c3 >> R08: 000000000000005f R09: 00005585e2103ec0 >> May 3 21:29:33 pc-francois kernel: [ 20.360101] R10: 00007feaa2d9ef80 >> R11: 0000000000000246 R12: 00005585e2127a80 >> May 3 21:29:33 pc-francois kernel: [ 20.363363] R13: 0000000000000001 >> R14: 00005585e2127b30 R15: 00005585e2103650 >> May 3 21:29:33 pc-francois kernel: [ 20.366616] ---[ end trace >> 170b245abe91a71f ]--- >> May 3 21:29:33 pc-francois kernel: [ 21.000999] EXT4-fs (dm-14): >> mounted filesystem with ordered data mode. Opts: (null) >> >> Finally If I revert this commit, the problem doesn't occur. I am using >> filesystems encrypted with luks formatted with ext4. The filesystems are >> on LVM volumes. >> Does anybody have an idea about this problem ? > Great, it did what it was trying to do :) > > Do you have this problem on 5.0.y or Linus's current tree? > > thanks, > > greg k-h It only occurs with the 4.19.y branch. On 5.0.11 and 5.1-rc7, I don't have the problem. François Valenduc
