INFO: task jfsCommit:128 blocked in I/O wait for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:jfsCommit       state:D stack:27480 pid:128   tgid:128   ppid:2      task_flags:0x200040 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5504 [inline]
 __schedule+0x16dc/0x5500 kernel/sched/core.c:7228
 __schedule_loop kernel/sched/core.c:7307 [inline]
 schedule+0x164/0x360 kernel/sched/core.c:7322
 io_schedule+0x80/0xe0 kernel/sched/core.c:8150
 __lock_metapage fs/jfs/jfs_metapage.c:52 [inline]
 lock_metapage+0x1fe/0x400 fs/jfs/jfs_metapage.c:66
 __get_metapage+0x47a/0xdf0 fs/jfs/jfs_metapage.c:749
 diIAGRead+0xce/0x140 fs/jfs/jfs_imap.c:2672
 diFree+0x9ce/0x2cc0 fs/jfs/jfs_imap.c:959
 jfs_evict_inode+0x324/0x430 fs/jfs/inode.c:162
 evict+0x624/0xb50 fs/inode.c:828
 txLazyCommit fs/jfs/jfs_txnmgr.c:2666 [inline]
 jfs_lazycommit+0x3f3/0xa20 fs/jfs/jfs_txnmgr.c:2735
 kthread+0x388/0x470 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
INFO: lockdep is turned off.
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 37 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
Call Trace:
 <TASK>
 dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
 nmi_cpu_backtrace+0x274/0x2d0 lib/nmi_backtrace.c:113
 nmi_trigger_cpumask_backtrace+0x17a/0x300 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline]
 __sys_info lib/sys_info.c:157 [inline]
 sys_info+0x135/0x170 lib/sys_info.c:165
 check_hung_uninterruptible_tasks kernel/hung_task.c:353 [inline]
 watchdog+0xfd7/0x1030 kernel/hung_task.c:561
 kthread+0x388/0x470 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 16915 Comm: syz.3.1062 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
RIP: 0010:__read_once_word_nocheck+0x3/0x10 include/asm-generic/rwonce.h:67
Code: 93 2b b7 00 e9 1e fd ff ff 66 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 48 8b 07 <e9> 98 da aa 09 cc cc cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc900041f7198 EFLAGS: 00000282
RAX: 0000000000000000 RBX: ffffc900041f727e RCX: dffffc0000000000
RDX: ffffffff900db75e RSI: 0000000000000000 RDI: ffffc900041f7f68
RBP: 1ffffffff201b6eb R08: ffffc900041f7f48 R09: 0000000000000000
R10: ffffc900041f7298 R11: ffffffff81afcfd0 R12: dffffc0000000000
R13: ffffffff900db75a R14: ffffc900041f7248 R15: ffffc900041f7280
FS:  00007fe37e3bd6c0(0000) GS:ffff88812615c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000001000 CR3: 000000003d9fa000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 get_reg arch/x86/kernel/unwind_orc.c:-1 [inline]
 unwind_next_frame+0x129a/0x2550 arch/x86/kernel/unwind_orc.c:672
 arch_stack_walk+0x11b/0x150 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0xa9/0x100 kernel/stacktrace.c:122
 save_stack+0x124/0x230 mm/page_owner.c:165
 __set_page_owner+0x8d/0x4b0 mm/page_owner.c:341
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x22d/0x280 mm/page_alloc.c:1853
 prep_new_page mm/page_alloc.c:1861 [inline]
 get_page_from_freelist+0x2877/0x28f0 mm/page_alloc.c:3941
 __alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5221
 alloc_pages_mpol+0xce/0x280 mm/mempolicy.c:2490
 folio_alloc_mpol_noprof+0x3b/0x1e0 mm/mempolicy.c:2509
 shmem_alloc_folio mm/shmem.c:1931 [inline]
 shmem_alloc_and_add_folio mm/shmem.c:1973 [inline]
 shmem_get_folio_gfp+0x69e/0x1b70 mm/shmem.c:2562
 shmem_get_folio mm/shmem.c:2668 [inline]
 shmem_write_begin+0x166/0x320 mm/shmem.c:3302
 generic_perform_write+0x2ad/0x8b0 mm/filemap.c:4336
 shmem_file_write_iter+0xfb/0x120 mm/shmem.c:3477
 new_sync_write fs/read_write.c:595 [inline]
 vfs_write+0x61e/0xbb0 fs/read_write.c:687
 ksys_write+0x156/0x270 fs/read_write.c:739
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fe38014d68e
Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
RSP: 002b:00007fe37e3bcda8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fe37e3bd6c0 RCX: 00007fe38014d68e
RDX: 0000000001000000 RSI: 00007fe375f9d000 RDI: 0000000000000007
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000007
R13: 00007fe37e3bcee0 R14: 00007fe37e3bcea0 R15: 00007fe375f9d000
 </TASK>