INFO: task jfsCommit:127 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:127   tgid:127   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: 14551 Comm: modprobe Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
RIP: 0010:unwind_next_frame+0x84a/0x2550 arch/x86/kernel/unwind_orc.c:536
Code: 83 c7 60 e9 a0 02 00 00 83 fb 03 0f 84 6a 01 00 00 83 fb 04 0f 85 bf 0c 00 00 49 8d 5e 40 48 89 d8 48 c1 e8 03 42 80 3c 20 00 <74> 0c 48 89 df e8 dc 61 b7 00 49 8d 55 04 4c 8b 03 49 8d 5d 01 4c
RSP: 0018:ffffc90003dcf520 EFLAGS: 00000246
RAX: 1ffff920007b9ec1 RBX: ffffc90003dcf608 RCX: ffffffff900af634
RDX: ffffffff90b5b256 RSI: ffffffff90b5b252 RDI: ffffffff8ba7d5c0
RBP: ffffc90003dcf600 R08: 0000000000000001 R09: 0000000000000000
R10: ffffc90003dcf618 R11: ffffffff81afd170 R12: dffffc0000000000
R13: ffffffff90b5b252 R14: ffffc90003dcf5c8 R15: 1ffff920007b9eb9
FS:  0000000000000000(0000) GS:ffff88812614d000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffa53679e9c CR3: 0000000033cae000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 arch_stack_walk+0x11b/0x150 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0xa9/0x100 kernel/stacktrace.c:122
 kasan_save_stack mm/kasan/common.c:57 [inline]
 kasan_save_track+0x3e/0x80 mm/kasan/common.c:78
 poison_kmalloc_redzone mm/kasan/common.c:398 [inline]
 __kasan_kmalloc+0x93/0xb0 mm/kasan/common.c:415
 kasan_kmalloc include/linux/kasan.h:263 [inline]
 __kmalloc_cache_noprof+0x3a2/0x690 mm/slub.c:5451
 _kmalloc_noprof include/linux/slab.h:969 [inline]
 slab_free_hook mm/slub.c:2652 [inline]
 slab_free mm/slub.c:6310 [inline]
 kmem_cache_free+0x156/0x6c0 mm/slub.c:6437
 tear_down_vmas+0x312/0x520 mm/mmap.c:1262
 exit_mmap+0x4ca/0x9f0 mm/mmap.c:1320
 __mmput+0xcb/0x3d0 kernel/fork.c:1181
 exit_mm+0x186/0x240 kernel/exit.c:610
 do_exit+0x6cd/0x2360 kernel/exit.c:992
 do_group_exit+0x22d/0x2f0 kernel/exit.c:1147
 __do_sys_exit_group kernel/exit.c:1158 [inline]
 __se_sys_exit_group kernel/exit.c:1156 [inline]
 __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1156
 x64_sys_call+0x221a/0x2240 arch/x86/include/generated/asm/syscalls_64.h:232
 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: 0033:0x7ffa537d86c5
Code: Unable to access opcode bytes at 0x7ffa537d869b.
RSP: 002b:00007fffe331af88 EFLAGS: 00000202 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007ffa538d9fe8 RCX: 00007ffa537d86c5
RDX: 00000000000000e7 RSI: ffffffffffffff88 RDI: 0000000000000001
RBP: 0000000000000001 R08: 00007fffe331af18 R09: 0000000000000000
R10: 00007fffe331adb0 R11: 0000000000000202 R12: 0000000000000000
R13: 0000000000000001 R14: 00007ffa538d8680 R15: 00007ffa538da000
 </TASK>