INFO: task jfsCommit:107 blocked for more than 143 seconds.
Not tainted 6.4.0-rc5-syzkaller-00016-ga4d7d7011219 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:jfsCommit state:D stack:26112 pid:107 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5343 [inline]
__schedule+0x187b/0x4900 kernel/sched/core.c:6669
schedule+0xc3/0x180 kernel/sched/core.c:6745
io_schedule+0x8c/0x100 kernel/sched/core.c:8979
__lock_metapage+0x1f9/0x310 fs/jfs/jfs_metapage.c:50
lock_metapage fs/jfs/jfs_metapage.c:64 [inline]
__get_metapage+0x556/0x10e0 fs/jfs/jfs_metapage.c:639
diIAGRead+0xcb/0x130 fs/jfs/jfs_imap.c:2662
diFree+0xa7e/0x2fb0 fs/jfs/jfs_imap.c:955
jfs_evict_inode+0x32d/0x440 fs/jfs/inode.c:156
evict+0x2a4/0x620 fs/inode.c:665
txUpdateMap+0x829/0x9e0 fs/jfs/jfs_txnmgr.c:2362
txLazyCommit fs/jfs/jfs_txnmgr.c:2659 [inline]
jfs_lazycommit+0x47a/0xb70 fs/jfs/jfs_txnmgr.c:2727
kthread+0x2b8/0x350 kernel/kthread.c:379
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/13:
#0: ffffffff8cf276f0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 kernel/rcu/tasks.h:518
1 lock held by rcu_tasks_trace/14:
#0: ffffffff8cf27ab0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 kernel/rcu/tasks.h:518
1 lock held by khungtaskd/28:
#0: ffffffff8cf27520 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
2 locks held by jfsCommit/107:
#0: ffff88807c8b0920 (&(imap->im_aglock[index])){+.+.}-{3:3}, at: diFree+0x37c/0x2fb0 fs/jfs/jfs_imap.c:885
#1: ffff888077b2a638 (&jfs_ip->rdwrlock/1){.+.+}-{3:3}, at: diFree+0x398/0x2fb0 fs/jfs/jfs_imap.c:890
2 locks held by getty/4743:
#0: ffff8880292fa098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc900015802f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6ab/0x1db0 drivers/tty/n_tty.c:2176
2 locks held by syz-executor398/6002:
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.4.0-rc5-syzkaller-00016-ga4d7d7011219 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106
nmi_cpu_backtrace+0x498/0x4d0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x187/0x300 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
watchdog+0xec2/0xf00 kernel/hung_task.c:379
kthread+0x2b8/0x350 kernel/kthread.c:379
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 4446 Comm: udevd Not tainted 6.4.0-rc5-syzkaller-00016-ga4d7d7011219 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023
RIP: 0010:__sanitizer_cov_trace_const_cmp4+0x0/0x90 kernel/kcov.c:305
Code: 89 11 48 c7 44 0a 08 03 00 00 00 48 89 44 0a 10 48 89 74 0a 18 4c 89 44 0a 20 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 0f 1e fa 4c 8b 04 24 65 48 8b 15 d0 34 78 7e 65 8b 05 d1 34 78
RSP: 0018:ffffc9000312f990 EFLAGS: 00000246
RAX: 0000000080000001 RBX: 0000000080000000 RCX: 0000000000000001
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: 0000000000000001 R08: ffffffff8177c768 R09: ffffc9000312fb10
R10: ffffc9000312fa70 R11: dffffc0000000001 R12: 0000000000000000
R13: ffffffff8179a210 R14: 00007fdc34517da7 R15: 1ffff92000625f4d
FS: 00007fdc348a6c80(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffcd3794c58 CR3: 000000001fde8000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
should_resched arch/x86/include/asm/preempt.h:104 [inline]
is_module_text_address+0x11b/0x180 kernel/module/main.c:3221
kernel_text_address+0x92/0xe0 kernel/extable.c:119
__kernel_text_address+0xd/0x40 kernel/extable.c:79
unwind_get_return_address+0x4d/0x90 arch/x86/kernel/unwind_orc.c:341
arch_stack_walk+0xf7/0x140 arch/x86/kernel/stacktrace.c:26
stack_trace_save+0x117/0x1c0 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:45 [inline]
kasan_set_track+0x4f/0x70 mm/kasan/common.c:52
__kasan_slab_alloc+0x66/0x70 mm/kasan/common.c:328
kasan_slab_alloc include/linux/kasan.h:186 [inline]
slab_post_alloc_hook+0x68/0x3a0 mm/slab.h:711
slab_alloc_node mm/slub.c:3451 [inline]
slab_alloc mm/slub.c:3459 [inline]
__kmem_cache_alloc_lru mm/slub.c:3466 [inline]
kmem_cache_alloc+0x11f/0x2e0 mm/slub.c:3475
getname_flags+0xbc/0x4e0 fs/namei.c:140
getname fs/namei.c:219 [inline]
__do_sys_unlink fs/namei.c:4441 [inline]
__se_sys_unlink fs/namei.c:4439 [inline]
__x64_sys_unlink+0x3c/0x50 fs/namei.c:4439
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fdc34517da7
Code: f0 ff ff 73 01 c3 48 8b 0d 7e 90 0d 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 b8 57 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 51 90 0d 00 f7 d8 64 89 01 48
RSP: 002b:00007ffee49854f8 EFLAGS: 00000202 ORIG_RAX: 0000000000000057
RAX: ffffffffffffffda RBX: 00007ffee49856f8 RCX: 00007fdc34517da7
RDX: 0000000000000000 RSI: 00007ffee4984ee8 RDI: 000055ed4dd4a0d8
RBP: 0000000000000000 R08: 0000000000000000 R09: 00007ffee4984858
R10: c79e1ec5c54c9080 R11: 0000000000000202 R12: 0000000000000bb8
R13: 0000000200000001 R14: 0000000000000000 R15: 0000000000000000
INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.197 msecs