linux-ext4 - [Bug 216322] Freezing of tasks failed after 60.004 seconds (1 tasks refusing to freeze... task:fstrim ext4_trim_fs

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Date:   Fri, 09 Sep 2022 06:02:59 +0000
From:   bugzilla-daemon@...nel.org
To:     linux-ext4@...r.kernel.org
Subject: [Bug 216322] Freezing of tasks failed after 60.004 seconds (1 tasks
 refusing to freeze... task:fstrim  ext4_trim_fs - Dell XPS 13 9310

https://bugzilla.kernel.org/show_bug.cgi?id=216322

brian.bascoy@...uza.com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |brian.bascoy@...uza.com

--- Comment #9 from brian.bascoy@...uza.com ---
I have a similar (same?) issue with my XPS 13 but the failing tasks seem
completely random. I think this started after upgrading my kernel from 5.13 to
5.14.

Len, can you confirm this only happens with fstrim?

Here are a few examples from my current boot:

Freezing of tasks failed after 20.002 seconds (1 tasks refusing to freeze,
wq_busy=0):
task:python3         state:D stack:    0 pid:120996 ppid:     1
flags:0x00000006
Call Trace:
 <TASK>
 __schedule+0x2ae/0x7c0
 schedule+0x4e/0xb0
 fanotify_handle_event+0x352/0x4d0
 ? wait_woken+0x60/0x60
 fsnotify+0x2ff/0x550
 __fsnotify_parent+0xff/0x310
 security_file_open+0xdd/0x150
 ? security_file_open+0xdd/0x150
 do_dentry_open+0xf2/0x380
 vfs_open+0x2d/0x30
 do_open.isra.0+0x224/0x420
 path_openat+0x18e/0xc80
 do_filp_open+0xb2/0x120
 ? __check_object_size+0x13f/0x150
 do_sys_openat2+0x245/0x310
 do_sys_open+0x46/0x80
 __x64_sys_openat+0x20/0x30
 do_syscall_64+0x38/0xc0
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f2885d3c6eb
RSP: 002b:00007fff68482670 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f2885c27140 RCX: 00007f2885d3c6eb
RDX: 0000000000080000 RSI: 00007f28856a2870 RDI: 00000000ffffff9c
RBP: 00007f28856a2870 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000080000
R13: 00007f2885499990 R14: 0000000000080000 R15: 0000000000000001
 </TASK>

---

Freezing of tasks failed after 20.006 seconds (1 tasks refusing to freeze,
wq_busy=0):
task:git             state:D stack:    0 pid:121036 ppid: 16154
flags:0x00000006
Call Trace:
 <TASK>
 __schedule+0x2ae/0x7c0
 schedule+0x4e/0xb0
 fanotify_handle_event+0x352/0x4d0
 ? wait_woken+0x60/0x60
 fsnotify+0x2ff/0x550
 __fsnotify_parent+0xff/0x310
 ? get_acl+0x1d/0x170
 security_file_open+0xdd/0x150
 ? security_file_open+0xdd/0x150
 do_dentry_open+0xf2/0x380
 vfs_open+0x2d/0x30
 do_open.isra.0+0x224/0x420
 path_openat+0x18e/0xc80
 ? filemap_map_pages+0x134/0x630
 do_filp_open+0xb2/0x120
 ? __check_object_size+0x13f/0x150
 do_sys_openat2+0x245/0x310
 do_sys_open+0x46/0x80
 __x64_sys_openat+0x20/0x30
 do_syscall_64+0x38/0xc0
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f3fead69bcc
RSP: 002b:00007ffca0166ac0 EFLAGS: 00000287 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f3fead69bcc
RDX: 0000000000080000 RSI: 00007f3feae31570 RDI: 00000000ffffff9c
RBP: 00007ffca0166c80 R08: 0000000000080000 R09: 00007f3feae31570
R10: 0000000000000000 R11: 0000000000000287 R12: 00007ffca0167cb8
R13: 00007ffca0166b20 R14: 00005575094ba320 R15: 00007ffca0166b20
 </TASK>

---

Freezing of tasks failed after 20.007 seconds (1 tasks refusing to freeze,
wq_busy=0):
task:grub-editenv    state:D stack:    0 pid:125647 ppid:     1
flags:0x00000004
Call Trace:
 <TASK>
 __schedule+0x2ae/0x7c0
 schedule+0x4e/0xb0
 fanotify_handle_event+0x352/0x4d0
 ? wait_woken+0x60/0x60
 fsnotify+0x2ff/0x550
 ? chacha_block_generic+0x6f/0xb0
 __fsnotify_parent+0xff/0x310
 security_file_open+0xdd/0x150
 ? security_file_open+0xdd/0x150
 do_dentry_open+0xf2/0x380
 vfs_open+0x2d/0x30
 do_open.isra.0+0x224/0x420
 path_openat+0x18e/0xc80
 do_filp_open+0xb2/0x120
 ? __check_object_size+0x13f/0x150
 do_sys_openat2+0x245/0x310
 do_sys_open+0x46/0x80
 __x64_sys_openat+0x20/0x30
 do_syscall_64+0x38/0xc0
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f125633bb38
RSP: 002b:00007ffd4004d148 EFLAGS: 00000287 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f12563501f8 RCX: 00007f125633bb38
RDX: 0000000000080000 RSI: 00007f125634321b RDI: 00000000ffffff9c
RBP: 00007ffd4004d300 R08: 0000000000080000 R09: 00007f125634321b
R10: 0000000000000000 R11: 0000000000000287 R12: ffffffffffffffff
R13: 0000000000000001 R14: 000000000000000d R15: 000056394c0aa990
 </TASK>

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