14:59,[Bisected] [commit dd6c3c544126] [linux-next] [6.8.0-rc2] Task hungs for infinite time call traces

14:59,[Bisected] [commit dd6c3c544126] [linux-next] [6.8.0-rc2] Task hungs for infinite time call traces

[Tasmiya Nalatwad]

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[linux-next] [6.8.0-rc2-next-20240130] [FC/XFS] Task hungs for infinite 
time while running bonnie test XFS filesystem

Bisected the issue. Git bisect points to the below commit
commit dd6c3c5441263723305a9c52c5ccc899a4653000
           workqueue: Move pwq_dec_nr_in_flight() to the end of work 
item handling

--- Traces ---

[  981.280811] Call Trace:
[  981.280813] [c0000001d10b7560] [c000000006e9b934] 0xc000000006e9b934 (unreliable)
[  981.280820] [c0000001d10b7710] [c00000000001fbac] __switch_to+0x13c/0x220
[  981.280827] [c0000001d10b7770] [c000000001002840] __schedule+0x268/0x7c4
[  981.280832] [c0000001d10b7840] [c000000001002ddc] schedule+0x40/0x108
[  981.280836] [c0000001d10b78b0] [c00000000100b748] schedule_timeout+0x19c/0x1c0
[  981.280841] [c0000001d10b7980] [c000000001004044] __wait_for_common+0x148/0x340
[  981.280845] [c0000001d10b7a10] [c00000000018fa98] __flush_workqueue+0x15c/0x530
[  981.280852] [c0000001d10b7ab0] [c008000008f89e9c] xfs_inodegc_flush+0x54/0x15c [xfs]
[  981.280913] [c0000001d10b7b00] [c008000008f9f47c] xfs_unmountfs+0x30/0x1e4 [xfs]
[  981.280969] [c0000001d10b7b80] [c008000008fa825c] xfs_fs_put_super+0x5c/0x110 [xfs]
[  981.281023] [c0000001d10b7bf0] [c0000000005c8774] generic_shutdown_super+0xc0/0x16c
[  981.281029] [c0000001d10b7c60] [c0000000005c8a50] kill_block_super+0x30/0x68
[  981.281034] [c0000001d10b7c90] [c008000008fa5c54] xfs_kill_sb+0x28/0x4c [xfs]
[  981.281088] [c0000001d10b7cc0] [c0000000005ca9d4] deactivate_locked_super+0x70/0x144
[  981.281093] [c0000001d10b7cf0] [c000000000605728] cleanup_mnt+0x10c/0x1d8
[  981.281098] [c0000001d10b7d40] [c00000000019b5e4] task_work_run+0xe0/0x16c
[  981.281102] [c0000001d10b7d90] [c000000000022974] do_notify_resume+0x134/0x13c
[  981.281107] [c0000001d10b7dc0] [c000000000032378] interrupt_exit_user_prepare_main+0x1ac/0x264
[  981.281112] [c0000001d10b7e20] [c000000000032580] syscall_exit_prepare+0x150/0x178
[  981.281116] [c0000001d10b7e50] [c00000000000d068] system_call_vectored_common+0x168/0x2ec
[  981.281122] --- interrupt: 3000 at 0x7fffaed4c11c
[  981.281125] NIP:  00007fffaed4c11c LR: 0000000000000000 CTR: 0000000000000000
[  981.281128] REGS: c0000001d10b7e80 TRAP: 3000   Not tainted  (6.8.0-rc2-next-20240130-auto)
[  981.281131] MSR:  800000000000d033 <SF,EE,PR,ME,IR,DR,RI,LE>  CR: 48002402  XER: 00000000
[  981.281139] IRQMASK: 0
[  981.281139] GPR00: 0000000000000034 00007fffec649770 00007fffaef07f00 0000000000000000
[  981.281139] GPR04: 0000000000000000 ffffffffff000000 0000000000000000 0000000000000001
[  981.281139] GPR08: 000000014cd61390 0000000000000000 0000000000000000 0000000000000000
[  981.281139] GPR12: 0000000000000000 00007fffaefbc140 000000000ee6b280 00007fffec649a30
[  981.281139] GPR16: 00007fffec649bd8 0000000118b66478 0000000000000000 0000000000000000
[  981.281139] GPR20: ffffffffffffffff ffffffffffffffff 0000000000000000 0000000000000000
[  981.281139] GPR24: 00007fffec64b0b0 0000000118b663d8 0000000118b66a58 0000000000000000
[  981.281139] GPR28: 000000014cd61250 0000000000000000 000000014cd61370 000000014cd61140
[  981.281175] NIP [00007fffaed4c11c] 0x7fffaed4c11c
[  981.281177] LR [0000000000000000] 0x0
[  981.281179] --- interrupt: 3000

-- 
Regards,
Tasmiya Nalatwad
IBM Linux Technology Center

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