INFO: task syz-executor.5:5044 blocked for more than 143 seconds.
Not tainted 6.5.0-rc2-syzkaller-00184-g57f1f9dd3abe #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:20712 pid:5044 ppid:1 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5381 [inline]
__schedule+0x1873/0x48f0 kernel/sched/core.c:6710
schedule+0xc3/0x180 kernel/sched/core.c:6786
schedule_timeout+0xb0/0x310 kernel/time/timer.c:2143
do_wait_for_common+0x449/0x5f0 kernel/sched/completion.c:85
__wait_for_common kernel/sched/completion.c:106 [inline]
wait_for_common kernel/sched/completion.c:117 [inline]
wait_for_completion+0x4a/0x60 kernel/sched/completion.c:138
__flush_work+0x130/0x1b0 kernel/workqueue.c:3386
nilfs_segctor_destroy fs/nilfs2/segment.c:2761 [inline]
nilfs_detach_log_writer+0x47f/0xbb0 fs/nilfs2/segment.c:2845
nilfs_put_super+0x4d/0x160 fs/nilfs2/super.c:498
generic_shutdown_super+0x134/0x340 fs/super.c:499
kill_block_super+0x68/0xa0 fs/super.c:1417
deactivate_locked_super+0xa4/0x110 fs/super.c:330
cleanup_mnt+0x426/0x4c0 fs/namespace.c:1254
task_work_run+0x24a/0x300 kernel/task_work.c:179
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
exit_to_user_mode_loop+0xd9/0x100 kernel/entry/common.c:171
exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:204
__syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline]
syscall_exit_to_user_mode+0x64/0x280 kernel/entry/common.c:297
do_syscall_64+0x4d/0xc0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f2765e7de57
RSP: 002b:00007fff57e85bc8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f2765e7de57
RDX: 0000000000000000 RSI: 000000000000000a RDI: 00007fff57e85c80
RBP: 00007fff57e85c80 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007fff57e86d40
R13: 00007f2765ec73b9 R14: 0000000000187ff7 R15: 0000000000000010
INFO: task syz-executor.3:5054 blocked for more than 143 seconds.
Not tainted 6.5.0-rc2-syzkaller-00184-g57f1f9dd3abe #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:19080 pid:5054 ppid:1 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5381 [inline]
__schedule+0x1873/0x48f0 kernel/sched/core.c:6710
schedule+0xc3/0x180 kernel/sched/core.c:6786
schedule_timeout+0xb0/0x310 kernel/time/timer.c:2143
do_wait_for_common+0x449/0x5f0 kernel/sched/completion.c:85
__wait_for_common kernel/sched/completion.c:106 [inline]
wait_for_common kernel/sched/completion.c:117 [inline]
wait_for_completion+0x4a/0x60 kernel/sched/completion.c:138
__flush_work+0x130/0x1b0 kernel/workqueue.c:3386
nilfs_segctor_destroy fs/nilfs2/segment.c:2761 [inline]
nilfs_detach_log_writer+0x47f/0xbb0 fs/nilfs2/segment.c:2845
nilfs_put_super+0x4d/0x160 fs/nilfs2/super.c:498
generic_shutdown_super+0x134/0x340 fs/super.c:499
kill_block_super+0x68/0xa0 fs/super.c:1417
deactivate_locked_super+0xa4/0x110 fs/super.c:330
cleanup_mnt+0x426/0x4c0 fs/namespace.c:1254
task_work_run+0x24a/0x300 kernel/task_work.c:179
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
exit_to_user_mode_loop+0xd9/0x100 kernel/entry/common.c:171
exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:204
__syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline]
syscall_exit_to_user_mode+0x64/0x280 kernel/entry/common.c:297
do_syscall_64+0x4d/0xc0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fbd6047de57
RSP: 002b:00007ffc930af808 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fbd6047de57
RDX: 0000000000000000 RSI: 000000000000000a RDI: 00007ffc930af8c0
RBP: 00007ffc930af8c0 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffc930b0980
R13: 00007fbd604c73b9 R14: 0000000000187a36 R15: 0000000000000010
Showing all locks held in the system:
3 locks held by kworker/0:1/9:
#0: ffff888012870d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7e3/0x12c0 kernel/workqueue.c:2569
#1: ffffc900000e7d00 ((work_completion)(&sci->sc_iput_work)){+.+.}-{0:0}, at: process_one_work+0x82b/0x12c0 kernel/workqueue.c:2571
#2: ffff888029512600 (sb_internal#3){.+.+}-{0:0}, at: nilfs_evict_inode+0x167/0x500 fs/nilfs2/inode.c:929
1 lock held by rcu_tasks_kthre/13:
#0: ffffffff8d328af0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 kernel/rcu/tasks.h:522
1 lock held by rcu_tasks_trace/14:
#0: ffffffff8d328eb0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 kernel/rcu/tasks.h:522
1 lock held by khungtaskd/28:
#0: ffffffff8d328920 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
2 locks held by getty/4768:
#0: ffff888028d5c098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc900015a02f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b1/0x1dc0 drivers/tty/n_tty.c:2187
1 lock held by syz-executor.5/5044:
#0: ffff8880348860e0 (&type->s_umount_key#53){+.+.}-{3:3}, at: deactivate_super+0xad/0xf0 fs/super.c:360
1 lock held by syz-executor.3/5054:
#0: ffff8880295120e0 (&type->s_umount_key#53){+.+.}-{3:3}, at: deactivate_super+0xad/0xf0 fs/super.c:360
3 locks held by kworker/0:9/5288:
#0: ffff888012870d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7e3/0x12c0 kernel/workqueue.c:2569
#1: ffffc90005c5fd00 ((work_completion)(&sci->sc_iput_work)){+.+.}-{0:0}, at: process_one_work+0x82b/0x12c0 kernel/workqueue.c:2571
#2: ffff888034886600 (sb_internal#3){.+.+}-{0:0}, at: nilfs_evict_inode+0x167/0x500 fs/nilfs2/inode.c:929
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.5.0-rc2-syzkaller-00184-g57f1f9dd3abe #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023
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:160 [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:389
ret_from_fork+0x2e/0x60 arch/x86/kernel/process.c:145
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:296
RIP: 0000:0x0
Code: Unable to access opcode bytes at 0xffffffffffffffd6.
RSP: 0000:0000000000000000 EFLAGS: 00000000 ORIG_RAX: 0000000000000000
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 8454 Comm: kworker/u4:3 Not tainted 6.5.0-rc2-syzkaller-00184-g57f1f9dd3abe #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023
Workqueue: bat_events batadv_purge_orig
RIP: 0010:check_wait_context kernel/locking/lockdep.c:4796 [inline]
RIP: 0010:__lock_acquire+0x750/0x7f70 kernel/locking/lockdep.c:5094
Code: ff cb 0f 88 a5 00 00 00 41 89 de 83 fb 31 73 7f 4b 8d 04 b6 48 8b 4c 24 38 4c 8d 74 c1 20 4c 89 f0 48 c1 e8 03 42 0f b6 04 00 <84> c0 75 1f 45 8b 36 48 8b 44 24 18 42 0f b6 04 00 84 c0 75 2f 45
RSP: 0018:ffffc90003b37620 EFLAGS: 00000802
RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffff8880206ba888
RDX: 000000000000000a RSI: 0000000000000008 RDI: ffffffff907b23d8
RBP: ffffc90003b378e8 R08: dffffc0000000000 R09: 1ffffffff20f647b
R10: dffffc0000000000 R11: fffffbfff20f647c R12: ffff8880206ba880
R13: 0000000000000002 R14: ffff8880206ba8d0 R15: ffff8880206ba8f8
FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c00064f000 CR3: 000000000d130000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
lock_acquire+0x1e3/0x520 kernel/locking/lockdep.c:5761
__raw_spin_lock_bh include/linux/spinlock_api_smp.h:126 [inline]
_raw_spin_lock_bh+0x35/0x50 kernel/locking/spinlock.c:178
spin_lock_bh include/linux/spinlock.h:356 [inline]
batadv_purge_orig_ref+0x1b8/0x15a0 net/batman-adv/originator.c:1243
batadv_purge_orig+0x19/0x60 net/batman-adv/originator.c:1272
process_one_work+0x92c/0x12c0 kernel/workqueue.c:2597
worker_thread+0xa63/0x1210 kernel/workqueue.c:2748
kthread+0x2b8/0x350 kernel/kthread.c:389
ret_from_fork+0x2e/0x60 arch/x86/kernel/process.c:145
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:296
RIP: 0000:0x0
Code: Unable to access opcode bytes at 0xffffffffffffffd6.
RSP: 0000:0000000000000000 EFLAGS: 00000000 ORIG_RAX: 0000000000000000
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000