INFO: task syz-executor.3:14890 blocked for more than 143 seconds.
Not tainted 5.15.127-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:26912 pid:14890 ppid: 4396 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5026 [inline]
__schedule+0x12c4/0x4590 kernel/sched/core.c:6372
schedule+0x11b/0x1f0 kernel/sched/core.c:6455
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6514
rwsem_down_read_slowpath+0x605/0xb40 kernel/locking/rwsem.c:1047
__down_read_common kernel/locking/rwsem.c:1231 [inline]
__down_read kernel/locking/rwsem.c:1244 [inline]
down_read+0x9a/0x2e0 kernel/locking/rwsem.c:1490
user_get_super+0x11a/0x250 fs/super.c:837
quotactl_block fs/quota/quota.c:889 [inline]
__do_sys_quotactl fs/quota/quota.c:953 [inline]
__se_sys_quotactl+0x490/0x770 fs/quota/quota.c:915
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7ff0eb51bae9
RSP: 002b:00007ff0e9a9d0c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000b3
RAX: ffffffffffffffda RBX: 00007ff0eb63af80 RCX: 00007ff0eb51bae9
RDX: 00000000000041c0 RSI: 0000000020000100 RDI: ffffffff80000802
RBP: 00007ff0eb56747a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000020000080 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007ff0eb63af80 R15: 00007fffdd83d8e8
INFO: task syz-executor.3:14899 blocked for more than 143 seconds.
Not tainted 5.15.127-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:24760 pid:14899 ppid: 4396 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5026 [inline]
__schedule+0x12c4/0x4590 kernel/sched/core.c:6372
schedule+0x11b/0x1f0 kernel/sched/core.c:6455
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6514
rwsem_down_read_slowpath+0x605/0xb40 kernel/locking/rwsem.c:1047
__down_read_common kernel/locking/rwsem.c:1231 [inline]
__down_read kernel/locking/rwsem.c:1244 [inline]
down_read+0x9a/0x2e0 kernel/locking/rwsem.c:1490
user_get_super+0x11a/0x250 fs/super.c:837
quotactl_block fs/quota/quota.c:889 [inline]
__do_sys_quotactl fs/quota/quota.c:953 [inline]
__se_sys_quotactl+0x490/0x770 fs/quota/quota.c:915
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7ff0eb51bae9
RSP: 002b:00007ff0e9a7c0c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000b3
RAX: ffffffffffffffda RBX: 00007ff0eb63b050 RCX: 00007ff0eb51bae9
RDX: 00000000000041c0 RSI: 0000000020000100 RDI: ffffffff80000802
RBP: 00007ff0eb56747a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000020000080 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007ff0eb63b050 R15: 00007fffdd83d8e8
INFO: task syz-executor.3:14913 blocked for more than 143 seconds.
Not tainted 5.15.127-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:27520 pid:14913 ppid: 4396 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5026 [inline]
__schedule+0x12c4/0x4590 kernel/sched/core.c:6372
schedule+0x11b/0x1f0 kernel/sched/core.c:6455
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6514
rwsem_down_read_slowpath+0x605/0xb40 kernel/locking/rwsem.c:1047
__down_read_common kernel/locking/rwsem.c:1231 [inline]
__down_read kernel/locking/rwsem.c:1244 [inline]
down_read+0x9a/0x2e0 kernel/locking/rwsem.c:1490
user_get_super+0x11a/0x250 fs/super.c:837
quotactl_block fs/quota/quota.c:889 [inline]
__do_sys_quotactl fs/quota/quota.c:953 [inline]
__se_sys_quotactl+0x490/0x770 fs/quota/quota.c:915
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7ff0eb51bae9
RSP: 002b:00007ff0e185b0c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000b3
RAX: ffffffffffffffda RBX: 00007ff0eb63b120 RCX: 00007ff0eb51bae9
RDX: 00000000000041c0 RSI: 0000000020000100 RDI: ffffffff80000802
RBP: 00007ff0eb56747a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000020000080 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007ff0eb63b120 R15: 00007fffdd83d8e8
Showing all locks held in the system:
1 lock held by khungtaskd/27:
#0: ffffffff8c91f0a0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
2 locks held by getty/3245:
#0: ffff888024729098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:252
#1: ffffc900024a42e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6af/0x1db0 drivers/tty/n_tty.c:2158
2 locks held by kworker/u4:0/3573:
4 locks held by syz-executor.3/4334:
3 locks held by kworker/0:0/9018:
#0: ffff8880b9a39718 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0xa8/0x140 kernel/sched/core.c:483
#1: ffff8880b9a27848 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x53d/0x810 kernel/sched/psi.c:891
#2: ffff88808fca2090 (&sbi->lock){+.+.}-{3:3}, at: reiserfs_write_lock_nested+0x5b/0xd0 fs/reiserfs/lock.c:78
1 lock held by syz-executor.3/14890:
#0: ffff8880927c00e0 (&type->s_umount_key#104){++++}-{3:3}, at: user_get_super+0x11a/0x250 fs/super.c:837
1 lock held by syz-executor.3/14899:
#0: ffff8880927c00e0 (&type->s_umount_key#104){++++}-{3:3}, at: user_get_super+0x11a/0x250 fs/super.c:837
1 lock held by syz-executor.3/14913:
#0: ffff8880927c00e0 (&type->s_umount_key#104){++++}-{3:3}, at: user_get_super+0x11a/0x250 fs/super.c:837
1 lock held by syz-executor.3/15048:
#0: ffff8880927c00e0 (&type->s_umount_key#104){++++}-{3:3}, at: user_get_super+0x11a/0x250 fs/super.c:837
1 lock held by syz-executor.3/15139:
#0: ffff8880927c00e0 (&type->s_umount_key#104){++++}-{3:3}, at: user_get_super+0x11a/0x250 fs/super.c:837
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 27 Comm: khungtaskd Not tainted 5.15.127-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106
nmi_cpu_backtrace+0x46a/0x4a0 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x181/0x2a0 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:210 [inline]
watchdog+0xe72/0xeb0 kernel/hung_task.c:295
kthread+0x3f6/0x4f0 kernel/kthread.c:319
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 4180 Comm: kworker/u4:13 Not tainted 5.15.127-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
Workqueue: bat_events batadv_nc_worker
RIP: 0010:lock_acquire+0x252/0x4f0 kernel/locking/lockdep.c:5626
Code: 2b 00 74 08 4c 89 f7 e8 0c 35 67 00 f6 44 24 61 02 0f 85 84 01 00 00 41 f7 c7 00 02 00 00 74 01 fb 48 c7 44 24 40 0e 36 e0 45 <4b> c7 44 25 00 00 00 00 00 43 c7 44 25 09 00 00 00 00 43 c7 44 25
RSP: 0018:ffffc9000e9e7a20 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 1ffff92001d3cf50 RCX: 1ffff92001d3cef0
RDX: dffffc0000000000 RSI: ffffffff8a8b1f00 RDI: ffffffff8ad87900
RBP: ffffc9000e9e7b70 R08: dffffc0000000000 R09: fffffbfff1f7b021
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff92001d3cf4c
R13: dffffc0000000000 R14: ffffc9000e9e7a80 R15: 0000000000000246
FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000556b65a1b468 CR3: 0000000076c29000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
rcu_lock_acquire+0x2a/0x30 include/linux/rcupdate.h:269
rcu_read_lock include/linux/rcupdate.h:696 [inline]
batadv_nc_process_nc_paths+0xb8/0x350 net/batman-adv/network-coding.c:691
batadv_nc_worker+0x4cf/0x5b0 net/batman-adv/network-coding.c:739
process_one_work+0x8a1/0x10c0 kernel/workqueue.c:2310
worker_thread+0xaca/0x1280 kernel/workqueue.c:2457
kthread+0x3f6/0x4f0 kernel/kthread.c:319
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298