https://bugzilla.kernel.org/show_bug.cgi?id=201819 --- Comment #1 from Zorro Lang (zlang@xxxxxxxxxx) --- Hit this issue again on xfs-linux xfs-5.3-fixes-6: [106054.030958] run fstests generic/270 at 2019-08-27 04:23:38 [106055.933668] XFS (sda3): Mounting V5 Filesystem [106055.978106] XFS (sda3): Ending clean mount [106055.983144] XFS (sda3): Quotacheck needed: Please wait. [106056.112537] XFS (sda3): Quotacheck: Done. [106209.302559] 270 (9465): drop_caches: 3 [106210.119303] XFS (sda3): Unmounting Filesystem [106210.479206] ------------[ cut here ]------------ [106210.483938] WARNING: CPU: 1 PID: 9903 at kernel/workqueue.c:4335 destroy_workqueue+0x12d/0x5a0 [106210.492616] Modules linked in: dm_log_writes dm_mod intel_rapl_msr iTCO_wdt iTCO_vendor_support mei_wdt dcdbas dell_smm_hwmon intel_rapl_common skx_edac nfit x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel snd_hda_codec_realtek kvm snd_hda_codec_generic ledtrig_audio snd_hda_codec_hdmi snd_hda_intel snd_hda_codec snd_hda_core irqbypass crct10dif_pclmul snd_hwdep crc32_pclmul snd_seq ghash_clmulni_intel snd_seq_device intel_cstate dell_wmi snd_pcm intel_uncore intel_rapl_perf sparse_keymap pcspkr snd_timer video snd dax_pmem_compat nd_pmem device_dax dax_pmem_core dell_smbios wmi_bmof dell_wmi_descriptor intel_wmi_thunderbolt soundcore mei_me mei sg i2c_i801 sunrpc ioatdma dca xfs libcrc32c sr_mod cdrom sd_mod radeon i2c_algo_bit drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops ttm ahci libahci uas crc32c_intel drm serio_raw e1000e libata usb_storage wmi [106210.569964] CPU: 1 PID: 9903 Comm: umount Not tainted 5.3.0-rc2+ #1 [106210.576304] Hardware name: Dell Inc. Precision 5820 Tower/0CK05C, BIOS 0.6.0 07/19/2017 [106210.584379] RIP: 0010:destroy_workqueue+0x12d/0x5a0 [106210.589333] Code: 89 f8 48 c1 e8 03 42 0f b6 04 28 84 c0 74 08 3c 03 0f 8e 32 04 00 00 41 83 7e 18 01 7e 13 48 c7 c7 00 86 28 a7 e8 1c 44 12 00 <0f> 0b e9 12 4c 00 00 49 8d 7e 58 48 89 f8 48 c1 e8 03 42 0f b6 04 [106210.608151] RSP: 0018:ffff88810a5d7d08 EFLAGS: 00010286 [106210.613450] RAX: 0000000000000024 RBX: ffffe8fffea4f458 RCX: ffffffffa5c323b2 [106210.620657] RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff88811a7e740c [106210.627863] RBP: ffff888014c89e00 R08: ffffed10234fe099 R09: ffffed10234fe099 [106210.635067] R10: ffffed10234fe098 R11: ffff88811a7f04c7 R12: ffffed10029913e4 [106210.642272] R13: dffffc0000000000 R14: ffffe8fffea4f400 R15: 000000000000000f [106210.649480] FS: 00007fbf7f4e1080(0000) GS:ffff88811a600000(0000) knlGS:0000000000000000 [106210.657637] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [106210.663455] CR2: 00007f85fc101000 CR3: 00000001127a4004 CR4: 00000000003606e0 [106210.670659] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [106210.677863] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [106210.685068] Call Trace: [106210.687793] xfs_destroy_mount_workqueues+0xe7/0x150 [xfs] [106210.693388] xfs_fs_put_super+0x9f/0x100 [xfs] [106210.697913] generic_shutdown_super+0x12e/0x330 [106210.702522] kill_block_super+0x94/0xe0 [106210.706436] deactivate_locked_super+0x82/0xd0 [106210.710958] deactivate_super+0x123/0x140 [106210.715046] ? freeze_super+0x290/0x290 [106210.718962] ? _raw_spin_unlock+0x24/0x30 [106210.723049] ? dput+0x11a/0x8c0 [106210.726273] cleanup_mnt+0x1ee/0x3c0 [106210.729929] task_work_run+0x104/0x190 [106210.733761] exit_to_usermode_loop+0x143/0x160 [106210.738283] do_syscall_64+0x3fa/0x500 [106210.742111] entry_SYSCALL_64_after_hwframe+0x49/0xbe [106210.747238] RIP: 0033:0x7fbf7e51c16b [106210.750893] Code: 0d 2c 00 f7 d8 64 89 01 48 83 c8 ff c3 66 90 f3 0f 1e fa 31 f6 e9 05 00 00 00 0f 1f 44 00 00 f3 0f 1e fa b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d ed 0c 2c 00 f7 d8 64 89 01 48 [106210.769710] RSP: 002b:00007ffe156e2298 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 [106210.777350] RAX: 0000000000000000 RBX: 00005631a94f02d0 RCX: 00007fbf7e51c16b [106210.784555] RDX: 0000000000000001 RSI: 0000000000000000 RDI: 00005631a94f9000 [106210.791760] RBP: 0000000000000000 R08: 00005631a94f8610 R09: 00007fbf7e59e300 [106210.798966] R10: 0000000000000000 R11: 0000000000000246 R12: 00005631a94f9000 [106210.806171] R13: 00007fbf7f2c8184 R14: 00005631a94f04b0 R15: 00000000ffffffff [106210.813382] irq event stamp: 0 [106210.816515] hardirqs last enabled at (0): [<0000000000000000>] 0x0 [106210.822857] hardirqs last disabled at (0): [<ffffffffa4fe1be4>] copy_process+0x19c4/0x6510 [106210.831188] softirqs last enabled at (0): [<ffffffffa4fe1c80>] copy_process+0x1a60/0x6510 [106210.839519] softirqs last disabled at (0): [<0000000000000000>] 0x0 [106210.845857] ---[ end trace f560decc3c76b0f1 ]--- [106210.850568] Showing busy workqueues and worker pools: [106210.855699] workqueue events: flags=0x0 [106210.859621] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 [106210.865704] pending: free_obj_work [106210.869550] workqueue mm_percpu_wq: flags=0x8 [106210.873989] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 [106210.880068] pending: vmstat_update [106211.175544] XFS (sda3): Mounting V5 Filesystem [106211.324636] XFS (sda3): Ending clean mount [106218.059451] XFS (sda3): Unmounting Filesystem [106218.200093] XFS (sda3): Mounting V5 Filesystem [106218.293378] XFS (sda3): Ending clean mount [106218.340576] XFS (sda3): Quotacheck needed: Please wait. [106224.712481] XFS (sda3): Quotacheck: Done. [106225.304201] XFS (sda3): Unmounting Filesystem [106225.774772] XFS (sda2): Unmounting Filesystem -- You are receiving this mail because: You are watching the assignee of the bug.