INFO: task syz-executor.5:5318 blocked for more than 143 seconds.
Not tainted 6.3.0-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:21144 pid:5318 ppid:1 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5343 [inline]
__schedule+0x187b/0x4900 kernel/sched/core.c:6669
schedule+0xc3/0x180 kernel/sched/core.c:6745
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6804
rwsem_down_write_slowpath+0xedd/0x13a0 kernel/locking/rwsem.c:1178
__down_write_common+0x1aa/0x200 kernel/locking/rwsem.c:1306
deactivate_super+0xad/0xf0 fs/super.c:361
cleanup_mnt+0x426/0x4c0 fs/namespace.c:1177
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/0x90 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f2ea8e8d567
RSP: 002b:00007fffef76af48 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f2ea8e8d567
RDX: 00007fffef76b019 RSI: 000000000000000a RDI: 00007fffef76b010
RBP: 00007fffef76b010 R08: 00000000ffffffff R09: 00007fffef76ade0
R10: 00005555569528e3 R11: 0000000000000246 R12: 00007f2ea8ee6b74
R13: 00007fffef76c0d0 R14: 0000555556952810 R15: 00007fffef76c110
INFO: task syz-executor.0:5654 blocked for more than 143 seconds.
Not tainted 6.3.0-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:25672 pid:5654 ppid:5326 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5343 [inline]
__schedule+0x187b/0x4900 kernel/sched/core.c:6669
schedule+0xc3/0x180 kernel/sched/core.c:6745
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6804
rwsem_down_read_slowpath+0x5f4/0x950 kernel/locking/rwsem.c:1086
__down_read_common+0x61/0x2c0 kernel/locking/rwsem.c:1250
iterate_supers+0xb0/0x1e0 fs/super.c:743
quota_sync_all fs/quota/quota.c:69 [inline]
__do_sys_quotactl fs/quota/quota.c:937 [inline]
__se_sys_quotactl+0x37f/0x810 fs/quota/quota.c:916
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0x90 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f010588c0f9
RSP: 002b:00007f01066c0168 EFLAGS: 00000246 ORIG_RAX: 00000000000000b3
RAX: ffffffffffffffda RBX: 00007f01059abf80 RCX: 00007f010588c0f9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0040000080000101
RBP: 00007f01058e7b39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd63ba217f R14: 00007f01066c0300 R15: 0000000000022000
INFO: task syz-executor.1:5655 blocked for more than 143 seconds.
Not tainted 6.3.0-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:29240 pid:5655 ppid:5329 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5343 [inline]
__schedule+0x187b/0x4900 kernel/sched/core.c:6669
schedule+0xc3/0x180 kernel/sched/core.c:6745
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6804
rwsem_down_read_slowpath+0x5f4/0x950 kernel/locking/rwsem.c:1086
__down_read_common+0x61/0x2c0 kernel/locking/rwsem.c:1250
iterate_supers+0xb0/0x1e0 fs/super.c:743
quota_sync_all fs/quota/quota.c:69 [inline]
__do_sys_quotactl fs/quota/quota.c:937 [inline]
__se_sys_quotactl+0x37f/0x810 fs/quota/quota.c:916
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0x90 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fcb81c8c0f9
RSP: 002b:00007fcb829f2168 EFLAGS: 00000246 ORIG_RAX: 00000000000000b3
RAX: ffffffffffffffda RBX: 00007fcb81dabf80 RCX: 00007fcb81c8c0f9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0040000080000101
RBP: 00007fcb81ce7b39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc1be2de0f R14: 00007fcb829f2300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff8cf248f0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 kernel/rcu/tasks.h:518
1 lock held by rcu_tasks_trace/13:
#0: ffffffff8cf24cb0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 kernel/rcu/tasks.h:518
1 lock held by khungtaskd/28:
#0: ffffffff8cf24720 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
2 locks held by kworker/u4:2/41:
2 locks held by kworker/u4:3/55:
2 locks held by getty/4708:
#0: ffff888027796098 (&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+0x6ab/0x1db0 drivers/tty/n_tty.c:2176
1 lock held by syz-executor.5/5318:
#0: ffff88801f6a80e0 (&type->s_umount_key#68){++++}-{3:3}, at: deactivate_super+0xad/0xf0 fs/super.c:361
2 locks held by syz-executor.2/5634:
#0: ffff88801f6a80e0 (&type->s_umount_key#68){++++}-{3:3}, at: iterate_supers+0xb0/0x1e0 fs/super.c:743
#1: ffffc90008c0c0f0 (&journal->j_mutex){+.+.}-{3:3}, at: reiserfs_mutex_lock_safe fs/reiserfs/reiserfs.h:814 [inline]
#1: ffffc90008c0c0f0 (&journal->j_mutex){+.+.}-{3:3}, at: lock_journal fs/reiserfs/journal.c:534 [inline]
#1: ffffc90008c0c0f0 (&journal->j_mutex){+.+.}-{3:3}, at: do_journal_begin_r+0x352/0x1020 fs/reiserfs/journal.c:3046
1 lock held by syz-executor.3/5640:
4 locks held by syz-executor.4/5644:
1 lock held by syz-executor.0/5654:
#0: ffff88801f6a80e0 (&type->s_umount_key#68){++++}-{3:3}, at: iterate_supers+0xb0/0x1e0 fs/super.c:743
1 lock held by syz-executor.1/5655:
#0: ffff88801f6a80e0 (&type->s_umount_key#68){++++}-{3:3}, at: iterate_supers+0xb0/0x1e0 fs/super.c:743
1 lock held by syz-executor.2/5853:
#0: ffff88801f6a80e0 (&type->s_umount_key#68){++++}-{3:3}, at: iterate_supers+0xb0/0x1e0 fs/super.c:743
1 lock held by syz-executor.3/5864:
#0: ffff88801f6a80e0 (&type->s_umount_key#68){++++}-{3:3}, at: iterate_supers+0xb0/0x1e0 fs/super.c:743
1 lock held by syz-executor.0/5872:
#0: ffff88801f6a80e0 (&type->s_umount_key#68){++++}-{3:3}, at: iterate_supers+0xb0/0x1e0 fs/super.c:743
1 lock held by syz-executor.1/5881:
#0: ffff88801f6a80e0 (&type->s_umount_key#68){++++}-{3:3}, at: iterate_supers+0xb0/0x1e0 fs/super.c:743
1 lock held by syz-executor.4/5884:
#0: ffff88801f6a80e0 (&type->s_umount_key#68){++++}-{3:3}, at: iterate_supers+0xb0/0x1e0 fs/super.c:743
1 lock held by syz-executor.2/5902:
#0: ffff88801f6a80e0 (&type->s_umount_key#68){++++}-{3:3}, at: iterate_supers+0xb0/0x1e0 fs/super.c:743
1 lock held by syz-executor.3/5948:
#0: ffff88801f6a80e0 (&type->s_umount_key#68){++++}-{3:3}, at: iterate_supers+0xb0/0x1e0 fs/super.c:743
1 lock held by syz-executor.0/5962:
#0: ffff88801f6a80e0 (&type->s_umount_key#68){++++}-{3:3}, at: iterate_supers+0xb0/0x1e0 fs/super.c:743
1 lock held by syz-executor.1/5969:
#0: ffff88801f6a80e0 (&type->s_umount_key#68){++++}-{3:3}, at: iterate_supers+0xb0/0x1e0 fs/super.c:743
1 lock held by syz-executor.4/5978:
#0: ffff88801f6a80e0 (&type->s_umount_key#68){++++}-{3:3}, at: iterate_supers+0xb0/0x1e0 fs/super.c:743
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.3.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023
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+0x187/0x2e0 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
watchdog+0xec2/0xf00 kernel/hung_task.c:379
kthread+0x2b2/0x350 kernel/kthread.c:379
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 5644 Comm: syz-executor.4 Not tainted 6.3.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023
RIP: 0010:lock_is_held_type+0x51/0x190 kernel/locking/lockdep.c:5755
Code: 18 32 ae 03 00 0f 84 00 01 00 00 65 8b 05 7f b3 5b 75 85 c0 0f 85 f1 00 00 00 65 4c 8b 2d f7 e1 5c 75 41 83 bd c4 0a 00 00 00 <0f> 85 db 00 00 00 41 89 f6 49 89 ff 48 c7 04 24 00 00 00 00 9c 8f
RSP: 0018:ffffc90008b9efa0 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000080000000
RDX: ffff8880224e0000 RSI: 00000000ffffffff RDI: ffffffff8cf24720
RBP: 00000000ffffffff R08: ffffffff8aa2cd25 R09: fffffbfff205fe19
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff92001173e18
R13: ffff8880224e0000 R14: ffffc90008b9f0c0 R15: ffff8880698e5b82
FS: 00007f30b490a700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555556277848 CR3: 000000006906e000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
xa_entry include/linux/xarray.h:1198 [inline]
xas_descend+0x120/0x440 lib/xarray.c:204
xas_load+0xbe/0x140 lib/xarray.c:242
filemap_get_entry+0x1bd/0x460 mm/filemap.c:1858
__filemap_get_folio+0x53/0xa00 mm/filemap.c:1918
pagecache_get_page+0x2e/0x220 mm/folio-compat.c:99
find_get_page_flags include/linux/pagemap.h:591 [inline]
__find_get_block_slow fs/buffer.c:203 [inline]
__find_get_block+0x3df/0x1130 fs/buffer.c:1356
flush_commit_list+0x9e1/0x1bf0 fs/reiserfs/journal.c:1053
flush_journal_list+0x2a8/0x1c70 fs/reiserfs/journal.c:1391
flush_used_journal_lists+0x1256/0x15d0 fs/reiserfs/journal.c:1829
do_journal_end+0x39f7/0x4770
do_journal_begin_r+0x970/0x1020
journal_begin+0x14c/0x360 fs/reiserfs/journal.c:3253
reiserfs_sync_fs+0xb0/0x150 fs/reiserfs/super.c:77
dquot_quota_sync+0xdb/0x490 fs/quota/dquot.c:704
iterate_supers+0x12b/0x1e0 fs/super.c:745
quota_sync_all fs/quota/quota.c:69 [inline]
__do_sys_quotactl fs/quota/quota.c:937 [inline]
__se_sys_quotactl+0x37f/0x810 fs/quota/quota.c:916
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0x90 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f30b3c8c0f9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f30b490a168 EFLAGS: 00000246 ORIG_RAX: 00000000000000b3
RAX: ffffffffffffffda RBX: 00007f30b3dabf80 RCX: 00007f30b3c8c0f9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0040000080000101
RBP: 00007f30b3ce7b39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff33a0655f R14: 00007f30b490a300 R15: 0000000000022000