INFO: task syz-executor.3:6125 blocked for more than 143 seconds.
Not tainted 6.1.0-rc5-next-20221115-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D
stack:26568 pid:6125 ppid:5346 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5229 [inline]
__schedule+0xb8a/0x5450 kernel/sched/core.c:6541
schedule+0xde/0x1b0 kernel/sched/core.c:6617
schedule_timeout+0x1df/0x2a0 kernel/time/timer.c:1911
do_wait_for_common kernel/sched/completion.c:85 [inline]
__wait_for_common+0x1ce/0x5c0 kernel/sched/completion.c:106
f2fs_issue_checkpoint+0x35c/0x460 fs/f2fs/checkpoint.c:1887
f2fs_sync_fs+0x244/0x4c0 fs/f2fs/super.c:1668
sync_fs_one_sb fs/sync.c:84 [inline]
sync_fs_one_sb+0x10b/0x150 fs/sync.c:80
iterate_supers+0x140/0x2a0 fs/super.c:724
ksys_sync+0xac/0x150 fs/sync.c:104
__do_sys_sync+0xe/0x20 fs/sync.c:113
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f2c96a8b639
RSP: 002b:00007f2c977ca168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2
RAX: ffffffffffffffda RBX: 00007f2c96babf80 RCX: 00007f2c96a8b639
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007f2c96ae6ae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffede63f8df R14: 00007f2c977ca300 R15: 0000000000022000
INFO: task syz-executor.1:6162 blocked for more than 144 seconds.
Not tainted 6.1.0-rc5-next-20221115-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D
stack:28136 pid:6162 ppid:5338 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5229 [inline]
__schedule+0xb8a/0x5450 kernel/sched/core.c:6541
schedule+0xde/0x1b0 kernel/sched/core.c:6617
schedule_timeout+0x1df/0x2a0 kernel/time/timer.c:1911
do_wait_for_common kernel/sched/completion.c:85 [inline]
__wait_for_common+0x1ce/0x5c0 kernel/sched/completion.c:106
f2fs_issue_checkpoint+0x35c/0x460 fs/f2fs/checkpoint.c:1887
f2fs_sync_fs+0x244/0x4c0 fs/f2fs/super.c:1668
sync_fs_one_sb fs/sync.c:84 [inline]
sync_fs_one_sb+0x10b/0x150 fs/sync.c:80
iterate_supers+0x140/0x2a0 fs/super.c:724
ksys_sync+0xac/0x150 fs/sync.c:104
__do_sys_sync+0xe/0x20 fs/sync.c:113
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f6e34a8b639
RSP: 002b:00007f6e35734168 EFLAGS: 00000246
ORIG_RAX: 00000000000000a2
RAX: ffffffffffffffda RBX: 00007f6e34bac120 RCX: 00007f6e34a8b639
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007f6e34ae6ae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd984c26cf R14: 00007f6e35734300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff8c58fb30 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70 kernel/rcu/tasks.h:507
1 lock held by rcu_tasks_trace/13:
#0: ffffffff8c58f830 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70 kernel/rcu/tasks.h:507
1 lock held by khungtaskd/28:
#0: ffffffff8c590680 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x57/0x264 kernel/locking/lockdep.c:6494
2 locks held by getty/4974:
#0: ffff8880275a3098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x26/0x80 drivers/tty/tty_ldisc.c:244
#1: ffffc900015b02f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xef4/0x13e0 drivers/tty/n_tty.c:2177
3 locks held by kworker/u4:13/5747:
4 locks held by kworker/u4:14/5748:
1 lock held by syz-executor.3/6125:
#0: ffff88803da000e0 (&type->s_umount_key#76){++++}-{3:3}, at: iterate_supers+0xdf/0x2a0 fs/super.c:722
1 lock held by syz-executor.1/6155:
#0: ffff88803da000e0 (&type->s_umount_key#76){++++}-{3:3}, at: iterate_supers+0xdf/0x2a0 fs/super.c:722
1 lock held by syz-executor.1/6162:
#0: ffff88803da000e0 (&type->s_umount_key#76){++++}-{3:3}, at: iterate_supers+0xdf/0x2a0 fs/super.c:722
2 locks held by f2fs_ckpt-7:1/6157:
1 lock held by syz-executor.3/6288:
#0: ffff88803da000e0 (&type->s_umount_key#76){++++}-{3:3}, at: iterate_supers+0xdf/0x2a0 fs/super.c:722
1 lock held by syz-executor.3/6289:
#0: ffff88803da000e0 (&type->s_umount_key#76){++++}-{3:3}, at: iterate_supers+0xdf/0x2a0 fs/super.c:722
1 lock held by syz-executor.3/6290:
#0: ffff88803da000e0 (&type->s_umount_key#76){++++}-{3:3}, at: iterate_supers+0xdf/0x2a0 fs/super.c:722
1 lock held by syz-executor.3/6291:
#0: ffff88803da000e0 (&type->s_umount_key#76){++++}-{3:3}, at: iterate_supers+0xdf/0x2a0 fs/super.c:722
1 lock held by syz-executor.3/6292:
#0:
ffff88803da000e0
(&type->s_umount_key
#76
){++++}-{3:3}
, at: iterate_supers+0xdf/0x2a0 fs/super.c:722
1 lock held by syz-executor.3/6293:
#0:
ffff88803da000e0
(
&type->s_umount_key
#76
){++++}-{3:3}
, at: iterate_supers+0xdf/0x2a0 fs/super.c:722
1 lock held by syz-executor.3/6296:
#0:
ffff88803da000e0
(
&type->s_umount_key
#76
){++++}-{3:3}
, at: iterate_supers+0xdf/0x2a0 fs/super.c:722
1 lock held by syz-executor.3/6297:
#0:
ffff88803da000e0
(
&type->s_umount_key
#76
){++++}-{3:3}
, at: iterate_supers+0xdf/0x2a0 fs/super.c:722
1 lock held by syz-executor.3/6345:
#0:
ffffffff8dedefe8
(rtnl_mutex
){+.+.}-{3:3}
, at: rtnl_lock net/core/rtnetlink.c:75 [inline]
, at: rtnetlink_rcv_msg+0x3e9/0xca0 net/core/rtnetlink.c:6138
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.1.0-rc5-next-20221115-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xd1/0x138 lib/dump_stack.c:106
nmi_cpu_backtrace.cold+0x24/0x18a lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x333/0x3c0 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:220 [inline]
watchdog+0xc75/0xfc0 kernel/hung_task.c:377
kthread+0x2e8/0x3a0 kernel/kthread.c:376
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: 5747 Comm: kworker/u4:13 Not tainted 6.1.0-rc5-next-20221115-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Workqueue: bat_events batadv_nc_worker
RIP: 0010:check_wait_context kernel/locking/lockdep.c:4729 [inline]
RIP: 0010:__lock_acquire+0x423/0x56d0 kernel/locking/lockdep.c:5005
Code: 6c 6d 00 48 c1 e5 06 48 81 c5 60 3e 14 91 48 8d bd b8 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 0f b6 04 02 <84> c0 74 06 0f 8e 5e 11 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b
RSP: 0018:ffffc9000644f9b8 EFLAGS: 00000806
RAX: 0000000000000000 RBX: ffff88807575e1f8 RCX: ffffffff81631939
RDX: 1ffffffff2228c4b RSI: 0000000000000008 RDI: ffffffff91146258
RBP: ffffffff911461a0 R08: 0000000000000000 R09: ffffffff91143a47
R10: fffffbfff2228748 R11: 0000000000000000 R12: ffff88807575e248
R13: ffff88807575d7c0 R14: ffffffff8c590680 R15: 0000000000020000
FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f52b24d7a98 CR3: 000000002bea7000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
lock_acquire kernel/locking/lockdep.c:5668 [inline]
lock_acquire+0x1e3/0x630 kernel/locking/lockdep.c:5633
rcu_lock_acquire include/linux/rcupdate.h:325 [inline]
rcu_read_lock include/linux/rcupdate.h:764 [inline]
batadv_nc_process_nc_paths.part.0+0xec/0x3c0 net/batman-adv/network-coding.c:687
batadv_nc_process_nc_paths net/batman-adv/network-coding.c:679 [inline]
batadv_nc_worker+0xce6/0xfa0 net/batman-adv/network-coding.c:735
process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289
worker_thread+0x669/0x1090 kernel/workqueue.c:2436
kthread+0x2e8/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308