INFO: task syz-executor.5:5093 blocked for more than 143 seconds.
Not tainted 6.7.0-rc2-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:19312 pid:5093 tgid:5093 ppid:1 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5376 [inline]
__schedule+0x1961/0x4ab0 kernel/sched/core.c:6688
__schedule_loop kernel/sched/core.c:6763 [inline]
schedule+0x149/0x260 kernel/sched/core.c:6778
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6835
rwsem_down_write_slowpath+0xeea/0x13b0 kernel/locking/rwsem.c:1178
__down_write_common+0x1aa/0x200 kernel/locking/rwsem.c:1306
__super_lock fs/super.c:56 [inline]
__super_lock_excl fs/super.c:71 [inline]
deactivate_super+0xad/0xf0 fs/super.c:516
cleanup_mnt+0x426/0x4c0 fs/namespace.c:1256
task_work_run+0x24a/0x300 kernel/task_work.c:180
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
exit_to_user_mode_loop+0xde/0x100 kernel/entry/common.c:171
exit_to_user_mode_prepare+0xb1/0x150 kernel/entry/common.c:204
__syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
syscall_exit_to_user_mode+0x69/0x2a0 kernel/entry/common.c:296
do_syscall_64+0x52/0x110 arch/x86/entry/common.c:88
entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f496ba7de17
RSP: 002b:00007fff5db4f5b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f496ba7de17
RDX: 0000000000000000 RSI: 000000000000000a RDI: 00007fff5db4f670
RBP: 00007fff5db4f670 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007fff5db50730
R13: 00007f496bac73b9 R14: 0000000000070b1e R15: 0000000000000005
INFO: task syz-executor.3:10342 blocked for more than 143 seconds.
Not tainted 6.7.0-rc2-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:25616 pid:10342 tgid:10339 ppid:5099 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5376 [inline]
__schedule+0x1961/0x4ab0 kernel/sched/core.c:6688
__schedule_loop kernel/sched/core.c:6763 [inline]
schedule+0x149/0x260 kernel/sched/core.c:6778
jfs_flush_journal+0x72b/0xec0 fs/jfs/jfs_logmgr.c:1564
jfs_sync_fs+0x80/0xa0 fs/jfs/super.c:684
dquot_quota_sync+0xdb/0x490 fs/quota/dquot.c:753
iterate_supers+0xc2/0x180 fs/super.c:971
quota_sync_all fs/quota/quota.c:69 [inline]
__do_sys_quotactl fs/quota/quota.c:938 [inline]
__se_sys_quotactl+0x391/0xa30 fs/quota/quota.c:917
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x45/0x110 arch/x86/entry/common.c:82
entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f11c3c7cae9
RSP: 002b:00007f11c49000c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000b3
RAX: ffffffffffffffda RBX: 00007f11c3d9c120 RCX: 00007f11c3c7cae9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff80000100
RBP: 00007f11c3cc847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f11c3d9c120 R15: 00007ffce6bae218
Showing all locks held in the system:
1 lock held by khungtaskd/29:
#0: ffffffff8d92d060 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:301 [inline]
#0: ffffffff8d92d060 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:747 [inline]
#0: ffffffff8d92d060 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6613
1 lock held by klogd/4501:
2 locks held by getty/4816:
#0: ffff88814aee40a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc90002f062f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b4/0x1e10 drivers/tty/n_tty.c:2201
1 lock held by syz-executor.5/5093:
#0: ffff888039f8a0e0 (&type->s_umount_key#80){++++}-{3:3}, at: __super_lock fs/super.c:56 [inline]
#0: ffff888039f8a0e0 (&type->s_umount_key#80){++++}-{3:3}, at: __super_lock_excl fs/super.c:71 [inline]
#0: ffff888039f8a0e0 (&type->s_umount_key#80){++++}-{3:3}, at: deactivate_super+0xad/0xf0 fs/super.c:516
1 lock held by syz-executor.3/10342:
#0: ffff888039f8a0e0 (&type->s_umount_key#80){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline]
#0: ffff888039f8a0e0 (&type->s_umount_key#80){++++}-{3:3}, at: super_lock+0x176/0x3a0 fs/super.c:117
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 29 Comm: khungtaskd Not tainted 6.7.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
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+0x198/0x310 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+0xfaf/0xff0 kernel/hung_task.c:379
kthread+0x2d3/0x370 kernel/kthread.c:388
ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 9110 Comm: kworker/u4:6 Not tainted 6.7.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
Workqueue: bat_events batadv_nc_worker
RIP: 0010:mark_held_locks kernel/locking/lockdep.c:4261 [inline]
RIP: 0010:__trace_hardirqs_on_caller kernel/locking/lockdep.c:4299 [inline]
RIP: 0010:lockdep_hardirqs_on_prepare+0x3ba/0x780 kernel/locking/lockdep.c:4358
Code: 00 0f 94 c2 83 f2 07 48 8b 7c 24 10 48 89 de e8 0c a7 00 00 48 ba 00 00 00 00 00 fc ff df 85 c0 74 7e 49 ff c5 41 0f b6 04 17 <84> c0 75 33 49 63 06 48 83 c3 28 49 83 c4 28 49 39 c5 7c 99 eb 60
RSP: 0018:ffffc900032df980 EFLAGS: 00000002
RAX: 0000000000000000 RBX: ffff88802533a880 RCX: ffffffff816d950a
RDX: dffffc0000000000 RSI: 0000000000000008 RDI: ffffffff90dd4438
RBP: ffffc900032dfa28 R08: ffffffff90dd443f R09: 1ffffffff21ba887
R10: dffffc0000000000 R11: fffffbfff21ba888 R12: ffff88802533a8a0
R13: 0000000000000001 R14: ffff88802533a878 R15: 1ffff11004a6750f
FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffd27b34ba0 CR3: 000000000d730000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
trace_hardirqs_on+0x28/0x40 kernel/trace/trace_preemptirq.c:61
__local_bh_enable_ip+0x168/0x1f0 kernel/softirq.c:386
spin_unlock_bh include/linux/spinlock.h:396 [inline]
batadv_nc_purge_paths+0x309/0x3a0 net/batman-adv/network-coding.c:471
batadv_nc_worker+0x328/0x610 net/batman-adv/network-coding.c:720
process_one_work kernel/workqueue.c:2630 [inline]
process_scheduled_works+0x90f/0x1420 kernel/workqueue.c:2703
worker_thread+0xa5f/0x1000 kernel/workqueue.c:2784
kthread+0x2d3/0x370 kernel/kthread.c:388
ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242