INFO: task jfsCommit:107 blocked for more than 143 seconds.
Not tainted 6.6.0-rc3-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:jfsCommit state:D stack:27568 pid:107 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0xee1/0x5a10 kernel/sched/core.c:6695
schedule+0xe7/0x1b0 kernel/sched/core.c:6771
io_schedule+0xbe/0x130 kernel/sched/core.c:9026
__lock_metapage fs/jfs/jfs_metapage.c:50 [inline]
lock_metapage+0x23c/0x4d0 fs/jfs/jfs_metapage.c:64
__get_metapage+0x3ce/0x1170 fs/jfs/jfs_metapage.c:639
diIAGRead.isra.0+0xcd/0x140 fs/jfs/jfs_imap.c:2663
diFree+0xa94/0x2760 fs/jfs/jfs_imap.c:956
jfs_evict_inode+0x3d4/0x4b0 fs/jfs/inode.c:156
evict+0x2ed/0x6b0 fs/inode.c:664
iput_final fs/inode.c:1775 [inline]
iput.part.0+0x55e/0x7a0 fs/inode.c:1801
iput+0x5c/0x80 fs/inode.c:1791
txUpdateMap+0xaef/0xd10 fs/jfs/jfs_txnmgr.c:2367
txLazyCommit fs/jfs/jfs_txnmgr.c:2664 [inline]
jfs_lazycommit+0x5da/0xb10 fs/jfs/jfs_txnmgr.c:2732
kthread+0x33c/0x440 kernel/kthread.c:388
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304
Showing all locks held in the system:
1 lock held by khungtaskd/29:
#0: ffffffff8cbab2a0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:303 [inline]
#0: ffffffff8cbab2a0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:749 [inline]
#0: ffffffff8cbab2a0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x75/0x340 kernel/locking/lockdep.c:6613
2 locks held by jfsCommit/106:
#0: ffff88807a9d8920 (&(imap->im_aglock[index])){+.+.}-{3:3}, at: diFree+0x2ff/0x2760 fs/jfs/jfs_imap.c:886
#1: ffff88807632a638 (&jfs_ip->rdwrlock/1){.+.+}-{3:3}, at: diFree+0x31c/0x2760 fs/jfs/jfs_imap.c:891
2 locks held by jfsCommit/107:
#0: ffff888025910920 (&(imap->im_aglock[index])){+.+.}-{3:3}, at: diFree+0x2ff/0x2760 fs/jfs/jfs_imap.c:886
#1: ffff888076302638 (&jfs_ip->rdwrlock/1){.+.+}-{3:3}, at: diFree+0x31c/0x2760 fs/jfs/jfs_imap.c:891
4 locks held by kworker/1:2/774:
#0: ffff8880b993c718 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x29/0x130 kernel/sched/core.c:558
#1: ffff8880b9928888 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x2d9/0x900 kernel/sched/psi.c:999
#2: ffff8880b99297d8 (&base->lock){-.-.}-{2:2}, at: lock_timer_base+0x5d/0x200 kernel/time/timer.c:999
#3: ffffffff92503178 (&obj_hash[i].lock){-.-.}-{2:2}, at: debug_object_activate+0x1a0/0x490 lib/debugobjects.c:717
2 locks held by getty/4787:
#0: ffff88814a6760a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243
#1: ffffc90002f062f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xfc5/0x1480 drivers/tty/n_tty.c:2206
1 lock held by syz-executor.0/5792:
#0: ffff88801d8280e0 (&type->s_umount_key#53){+.+.}-{3:3}, at: __super_lock fs/super.c:56 [inline]
#0: ffff88801d8280e0 (&type->s_umount_key#53){+.+.}-{3:3}, at: __super_lock_excl fs/super.c:71 [inline]
#0: ffff88801d8280e0 (&type->s_umount_key#53){+.+.}-{3:3}, at: deactivate_super+0xd6/0x100 fs/super.c:513
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 29 Comm: khungtaskd Not tainted 6.6.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106
nmi_cpu_backtrace+0x277/0x380 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x299/0x300 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
watchdog+0xf87/0x1210 kernel/hung_task.c:379
kthread+0x33c/0x440 kernel/kthread.c:388
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 4472 Comm: syslogd Not tainted 6.6.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023
RIP: 0010:check_kcov_mode kernel/kcov.c:173 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0xb/0x70 kernel/kcov.c:207
Code: 0f 1e fa 48 8b be b0 01 00 00 e8 b0 ff ff ff 31 c0 c3 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 f3 0f 1e fa 65 8b 05 fd f5 7b 7e <89> c1 48 8b 34 24 81 e1 00 01 00 00 65 48 8b 14 25 c0 bc 03 00 a9
RSP: 0018:ffffc9000313f518 EFLAGS: 00000206
RAX: 0000000080000001 RBX: ffffc9000313f5a0 RCX: 0000000000000000
RDX: 1ffff92000627eb5 RSI: ffffffff813a57b9 RDI: ffffc9000313f5a8
RBP: ffffc9000313f8f0 R08: 0000000000000004 R09: 0000000000000001
R10: 0000000000000001 R11: 0000000000000002 R12: ffffc90003138000
R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000001
FS: 00007fcfad90a380(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005655275a7028 CR3: 000000001ab92000 CR4: 0000000000350ef0
Call Trace:
on_stack arch/x86/include/asm/stacktrace.h:56 [inline]
unwind_next_frame+0x11d7/0x2390 arch/x86/kernel/unwind_orc.c:665
arch_stack_walk+0xfa/0x170 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x96/0xd0 kernel/stacktrace.c:122
kasan_save_stack+0x33/0x50 mm/kasan/common.c:45
kasan_set_track+0x25/0x30 mm/kasan/common.c:52
kasan_save_free_info+0x2b/0x40 mm/kasan/generic.c:522
____kasan_slab_free mm/kasan/common.c:236 [inline]
____kasan_slab_free+0x15b/0x1b0 mm/kasan/common.c:200
kasan_slab_free include/linux/kasan.h:164 [inline]
slab_free_hook mm/slub.c:1800 [inline]
slab_free_freelist_hook+0x114/0x1e0 mm/slub.c:1826
slab_free mm/slub.c:3809 [inline]
kmem_cache_free+0xf0/0x480 mm/slub.c:3831
kfree_skbmem+0xef/0x1b0 net/core/skbuff.c:1010
__kfree_skb net/core/skbuff.c:1068 [inline]
consume_skb net/core/skbuff.c:1283 [inline]
consume_skb+0xdf/0x170 net/core/skbuff.c:1277
__unix_dgram_recvmsg+0x80f/0xe70 net/unix/af_unix.c:2442
unix_dgram_recvmsg+0xc3/0xf0 net/unix/af_unix.c:2459
sock_recvmsg_nosec net/socket.c:1027 [inline]
sock_recvmsg+0xe2/0x170 net/socket.c:1049
sock_read_iter+0x2c3/0x3c0 net/socket.c:1119
call_read_iter include/linux/fs.h:1950 [inline]
new_sync_read fs/read_write.c:389 [inline]
vfs_read+0x7ef/0x930 fs/read_write.c:470
ksys_read+0x1f0/0x250 fs/read_write.c:613
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fcfada5eb6a
Code: 00 3d 00 00 41 00 75 0d 50 48 8d 3d 2d 08 0a 00 e8 ea 7d 01 00 31 c0 e9 07 ff ff ff 64 8b 04 25 18 00 00 00 85 c0 75 1b 0f 05 <48> 3d 00 f0 ff ff 76 6c 48 8b 15 8f a2 0d 00 f7 d8 64 89 02 48 83
RSP: 002b:00007ffca1e04cd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fcfada5eb6a
RDX: 00000000000000ff RSI: 000055f552222950 RDI: 0000000000000000
RBP: 000055f552222910 R08: 0000000000000001 R09: 0000000000000000
R10: 00007fcfadbfd3a3 R11: 0000000000000246 R12: 000055f552222982
R13: 000055f552222950 R14: 0000000000000000 R15: 00007fcfadc3ba80