INFO: task kworker/0:2H:5960 blocked for more than 143 seconds.
      Not tainted 6.17.0-rc1-next-20250814-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:2H    state:D stack:25832 pid:5960  tgid:5960  ppid:2      task_flags:0x4208060 flags:0x00004000
Workqueue: gfs2-glock/syz:syz glock_work_func
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5357 [inline]
 __schedule+0x1798/0x4cc0 kernel/sched/core.c:6961
 __schedule_loop kernel/sched/core.c:7043 [inline]
 schedule+0x165/0x360 kernel/sched/core.c:7058
 io_schedule+0x80/0xd0 kernel/sched/core.c:7903
 bit_wait_io+0x11/0xd0 kernel/sched/wait_bit.c:250
 __wait_on_bit_lock+0xec/0x4f0 kernel/sched/wait_bit.c:93
 out_of_line_wait_on_bit_lock+0x123/0x170 kernel/sched/wait_bit.c:120
 wait_on_bit_lock_io include/linux/wait_bit.h:221 [inline]
 __lock_buffer fs/buffer.c:71 [inline]
 lock_buffer include/linux/buffer_head.h:432 [inline]
 discard_buffer fs/buffer.c:1606 [inline]
 block_invalidate_folio+0x376/0x730 fs/buffer.c:1663
 folio_invalidate mm/truncate.c:140 [inline]
 truncate_cleanup_folio+0x2d8/0x430 mm/truncate.c:160
 truncate_inode_pages_range+0x233/0xda0 mm/truncate.c:379
 inode_go_inval+0xf9/0x2c0 fs/gfs2/glops.c:368
 do_xmote+0x4e9/0x1060 fs/gfs2/glock.c:732
 glock_work_func+0x2a8/0x580 fs/gfs2/glock.c:1080
 process_one_work kernel/workqueue.c:3236 [inline]
 process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3319
 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3400
 kthread+0x711/0x8a0 kernel/kthread.c:463
 ret_from_fork+0x3f9/0x770 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
INFO: task syz-executor878:6013 blocked for more than 144 seconds.
      Not tainted 6.17.0-rc1-next-20250814-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor878 state:D stack:25224 pid:6013  tgid:6011  ppid:5871   task_flags:0x400140 flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5357 [inline]
 __schedule+0x1798/0x4cc0 kernel/sched/core.c:6961
 __schedule_loop kernel/sched/core.c:7043 [inline]
 schedule+0x165/0x360 kernel/sched/core.c:7058
 io_schedule+0x80/0xd0 kernel/sched/core.c:7903
 bit_wait_io+0x11/0xd0 kernel/sched/wait_bit.c:250
 __wait_on_bit_lock+0xec/0x4f0 kernel/sched/wait_bit.c:93
 out_of_line_wait_on_bit_lock+0x123/0x170 kernel/sched/wait_bit.c:120
 lock_buffer include/linux/buffer_head.h:432 [inline]
 gfs2_meta_read+0x25a/0x980 fs/gfs2/meta_io.c:274
 gfs2_meta_buffer+0x10f/0x2e0 fs/gfs2/meta_io.c:498
 gfs2_meta_inode_buffer fs/gfs2/meta_io.h:70 [inline]
 punch_hole+0x802/0x2ca0 fs/gfs2/bmap.c:1796
 gfs2_iomap_end+0x4f8/0x6c0 fs/gfs2/bmap.c:1178
 iomap_iter+0x313/0xde0 fs/iomap/iter.c:79
 iomap_file_buffered_write+0x7fa/0x9b0 fs/iomap/buffered-io.c:1065
 gfs2_file_buffered_write+0x4ed/0x880 fs/gfs2/file.c:1061
 gfs2_file_write_iter+0x94e/0x1100 fs/gfs2/file.c:1166
 new_sync_write fs/read_write.c:593 [inline]
 vfs_write+0x5c9/0xb30 fs/read_write.c:686
 ksys_write+0x145/0x250 fs/read_write.c:738
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fb47156a4f9
RSP: 002b:00007fb471516168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fb47160a6c8 RCX: 00007fb47156a4f9
RDX: 000000000208e24b RSI: 0000200000000040 RDI: 0000000000000005
RBP: 00007fb47160a6c0 R08: 00007fb4715166c0 R09: 0000000000000000
R10: 00007fb4715166c0 R11: 0000000000000246 R12: 00007fb47160a6cc
R13: 0000000000000006 R14: 00007ffe95b7cf90 R15: 00007ffe95b7d078
 </TASK>
INFO: lockdep is turned off.
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 31 Comm: khungtaskd Not tainted 6.17.0-rc1-next-20250814-syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
Call Trace:
 <TASK>
 dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120
 nmi_cpu_backtrace+0x39e/0x3d0 lib/nmi_backtrace.c:113
 nmi_trigger_cpumask_backtrace+0x17a/0x300 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:332 [inline]
 watchdog+0xf60/0xfa0 kernel/hung_task.c:495
 kthread+0x711/0x8a0 kernel/kthread.c:463
 ret_from_fork+0x3f9/0x770 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 5868 Comm: syz-executor878 Not tainted 6.17.0-rc1-next-20250814-syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:__do_sys_clock_nanosleep kernel/time/posix-timers.c:1399 [inline]
RIP: 0010:__se_sys_clock_nanosleep+0x2f1/0x380 kernel/time/posix-timers.c:1376
Code: df 41 80 3c 07 00 49 89 c7 74 08 4c 89 ef e8 66 3a 73 00 4d 8b 5d 00 44 89 f7 48 8b 74 24 08 48 8d 54 24 40 41 ff d3 0f 1f 00 <48> 98 eb 1d e8 56 bc 0f 00 eb 05 e8 4f bc 0f 00 48 c7 c0 ea ff ff
RSP: 0018:ffffc90003d87e20 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffff888032e95fb8 RCX: 4287d3a08c5ae100
RDX: 0000000000000000 RSI: ffffffff8be34be0 RDI: ffffffff84d25ae3
RBP: ffffc90003d87ee0 R08: ffffffff8fa3b137 R09: 1ffffffff1f47626
R10: dffffc0000000000 R11: fffffbfff1f47627 R12: 0000000000000000
R13: ffffffff8b8d2870 R14: 0000000000000000 R15: dffffc0000000000
FS:  000055558d547480(0000) GS:ffff888125d0f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb469b83000 CR3: 0000000033114000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fb4715976f3
Code: 00 00 00 00 0f 1f 00 83 ff 03 74 7b 83 ff 02 b8 fa ff ff ff 49 89 ca 0f 44 f8 80 3d ae 19 07 00 00 74 14 b8 e6 00 00 00 0f 05 <f7> d8 c3 66 2e 0f 1f 84 00 00 00 00 00 48 83 ec 28 48 89 54 24 10
RSP: 002b:00007ffe95b7d118 EFLAGS: 00000202 ORIG_RAX: 00000000000000e6
RAX: ffffffffffffffda RBX: 000000000003ece8 RCX: 00007fb4715976f3
RDX: 00007ffe95b7d130 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000001cdf R08: 00000000046c6b1b R09: 7fffffffffffffff
R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe95b7d200
R13: 0000000000000050 R14: 431bde82d7b634db R15: 00007ffe95b7d184
 </TASK>