INFO: task kworker/u4:2:41 blocked for more than 143 seconds.
Not tainted 6.4.0-rc2-next-20230515-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u4:2 state:D stack:23352 pid:41 ppid:2 flags:0x00004000
Workqueue: writeback wb_workfn (flush-7:0)
Call Trace:
context_switch kernel/sched/core.c:5343 [inline]
__schedule+0x1d15/0x5790 kernel/sched/core.c:6669
schedule+0xde/0x1a0 kernel/sched/core.c:6745
queue_log_writer+0x293/0x2f0 fs/reiserfs/journal.c:2980
check_journal_end fs/reiserfs/journal.c:3674 [inline]
do_journal_end+0x908/0x4af0 fs/reiserfs/journal.c:4040
reiserfs_write_inode+0x27e/0x2d0 fs/reiserfs/inode.c:1779
write_inode fs/fs-writeback.c:1456 [inline]
__writeback_single_inode+0x9f2/0xdb0 fs/fs-writeback.c:1668
writeback_sb_inodes+0x54d/0xe70 fs/fs-writeback.c:1894
wb_writeback+0x155/0xa40 fs/fs-writeback.c:2070
wb_do_writeback fs/fs-writeback.c:2217 [inline]
wb_workfn+0x2a5/0xcc0 fs/fs-writeback.c:2257
process_one_work+0x99a/0x15e0 kernel/workqueue.c:2407
worker_thread+0x67d/0x10c0 kernel/workqueue.c:2554
kthread+0x344/0x440 kernel/kthread.c:379
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
INFO: task kworker/u4:5:1041 blocked for more than 144 seconds.
Not tainted 6.4.0-rc2-next-20230515-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u4:5 state:D stack:27368 pid:1041 ppid:2 flags:0x00004000
Workqueue: writeback wb_workfn (flush-7:3)
Call Trace:
context_switch kernel/sched/core.c:5343 [inline]
__schedule+0x1d15/0x5790 kernel/sched/core.c:6669
schedule+0xde/0x1a0 kernel/sched/core.c:6745
queue_log_writer+0x293/0x2f0 fs/reiserfs/journal.c:2980
check_journal_end fs/reiserfs/journal.c:3674 [inline]
do_journal_end+0x908/0x4af0 fs/reiserfs/journal.c:4040
reiserfs_write_inode+0x27e/0x2d0 fs/reiserfs/inode.c:1779
write_inode fs/fs-writeback.c:1456 [inline]
__writeback_single_inode+0x9f2/0xdb0 fs/fs-writeback.c:1668
writeback_sb_inodes+0x54d/0xe70 fs/fs-writeback.c:1894
wb_writeback+0x155/0xa40 fs/fs-writeback.c:2070
wb_do_writeback fs/fs-writeback.c:2217 [inline]
wb_workfn+0x2a5/0xcc0 fs/fs-writeback.c:2257
process_one_work+0x99a/0x15e0 kernel/workqueue.c:2407
worker_thread+0x67d/0x10c0 kernel/workqueue.c:2554
kthread+0x344/0x440 kernel/kthread.c:379
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
INFO: task syz-executor133:5112 blocked for more than 144 seconds.
Not tainted 6.4.0-rc2-next-20230515-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor133 state:D stack:24752 pid:5112 ppid:5003 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5343 [inline]
__schedule+0x1d15/0x5790 kernel/sched/core.c:6669
schedule+0xde/0x1a0 kernel/sched/core.c:6745
bit_wait+0x16/0xe0 kernel/sched/wait_bit.c:199
__wait_on_bit+0x64/0x180 kernel/sched/wait_bit.c:49
__inode_wait_for_writeback+0x153/0x1f0 fs/fs-writeback.c:1477
inode_wait_for_writeback+0x26/0x40 fs/fs-writeback.c:1489
evict+0x2b7/0x6b0 fs/inode.c:662
iput_final fs/inode.c:1747 [inline]
iput fs/inode.c:1773 [inline]
iput+0x4a7/0x7a0 fs/inode.c:1759
dentry_unlink_inode+0x2b1/0x460 fs/dcache.c:401
d_delete fs/dcache.c:2565 [inline]
d_delete+0x16f/0x1c0 fs/dcache.c:2554
xattr_unlink+0x139/0x190 fs/reiserfs/xattr.c:97
lookup_and_delete_xattr fs/reiserfs/xattr.c:495 [inline]
reiserfs_xattr_set_handle+0x7bd/0xb00 fs/reiserfs/xattr.c:530
reiserfs_xattr_set+0x454/0x5b0 fs/reiserfs/xattr.c:634
trusted_set+0xa7/0xd0 fs/reiserfs/xattr_trusted.c:31
__vfs_removexattr+0x155/0x1c0 fs/xattr.c:519
__vfs_removexattr_locked+0x1b0/0x440 fs/xattr.c:554
vfs_removexattr+0xcf/0x260 fs/xattr.c:576
ovl_do_removexattr fs/overlayfs/overlayfs.h:273 [inline]
ovl_removexattr fs/overlayfs/overlayfs.h:281 [inline]
ovl_make_workdir fs/overlayfs/super.c:1353 [inline]
ovl_get_workdir fs/overlayfs/super.c:1436 [inline]
ovl_fill_super+0x6ec5/0x7270 fs/overlayfs/super.c:1992
mount_nodev+0x64/0x120 fs/super.c:1426
legacy_get_tree+0x109/0x220 fs/fs_context.c:610
vfs_get_tree+0x8d/0x350 fs/super.c:1510
do_new_mount fs/namespace.c:3039 [inline]
path_mount+0x134b/0x1e40 fs/namespace.c:3369
do_mount fs/namespace.c:3382 [inline]
__do_sys_mount fs/namespace.c:3591 [inline]
__se_sys_mount fs/namespace.c:3568 [inline]
__x64_sys_mount+0x283/0x300 fs/namespace.c:3568
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: 0033:0x7fe5884ceab9
RSP: 002b:00007fe58847a2f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fe588554780 RCX: 00007fe5884ceab9
RDX: 0000000020000080 RSI: 00000000200000c0 RDI: 0000000000000000
RBP: 00007fe5885212d8 R08: 0000000020000480 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0079616c7265766f
R13: d5e172a4510865ec R14: 9837512483e3bdcd R15: 00007fe588554788
INFO: task syz-executor133:5129 blocked for more than 145 seconds.
Not tainted 6.4.0-rc2-next-20230515-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor133 state:D stack:28496 pid:5129 ppid:5003 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5343 [inline]
__schedule+0x1d15/0x5790 kernel/sched/core.c:6669
schedule+0xde/0x1a0 kernel/sched/core.c:6745
wb_wait_for_completion+0x182/0x240 fs/fs-writeback.c:192
sync_inodes_sb+0x1aa/0xa60 fs/fs-writeback.c:2736
sync_filesystem.part.0+0xe6/0x1d0 fs/sync.c:64
sync_filesystem+0x8f/0xc0 fs/sync.c:43
reiserfs_remount+0x129/0x1650 fs/reiserfs/super.c:1445
legacy_reconfigure+0x119/0x180 fs/fs_context.c:633
reconfigure_super+0x40c/0xa30 fs/super.c:956
do_remount fs/namespace.c:2701 [inline]
path_mount+0x1846/0x1e40 fs/namespace.c:3361
do_mount fs/namespace.c:3382 [inline]
__do_sys_mount fs/namespace.c:3591 [inline]
__se_sys_mount fs/namespace.c:3568 [inline]
__x64_sys_mount+0x283/0x300 fs/namespace.c:3568
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: 0033:0x7fe5884cff7a
RSP: 002b:00007fe580459118 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fe5804596b8 RCX: 00007fe5884cff7a
RDX: 00000000200001c0 RSI: 0000000020000100 RDI: 0000000000000000
RBP: 00000000ffffffff R08: 00007fe5804591b0 R09: 0000000000000000
R10: 0000000001a484bc R11: 0000000000000286 R12: 00000000200001c0
R13: 0000000020000100 R14: 0000000000000000 R15: 00000000200004c0
INFO: task syz-executor133:5894 blocked for more than 145 seconds.
Not tainted 6.4.0-rc2-next-20230515-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor133 state:D stack:24752 pid:5894 ppid:5006 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5343 [inline]
__schedule+0x1d15/0x5790 kernel/sched/core.c:6669
schedule+0xde/0x1a0 kernel/sched/core.c:6745
bit_wait+0x16/0xe0 kernel/sched/wait_bit.c:199
__wait_on_bit+0x64/0x180 kernel/sched/wait_bit.c:49
__inode_wait_for_writeback+0x153/0x1f0 fs/fs-writeback.c:1477
inode_wait_for_writeback+0x26/0x40 fs/fs-writeback.c:1489
evict+0x2b7/0x6b0 fs/inode.c:662
iput_final fs/inode.c:1747 [inline]
iput fs/inode.c:1773 [inline]
iput+0x4a7/0x7a0 fs/inode.c:1759
dentry_unlink_inode+0x2b1/0x460 fs/dcache.c:401
d_delete fs/dcache.c:2565 [inline]
d_delete+0x16f/0x1c0 fs/dcache.c:2554
xattr_unlink+0x139/0x190 fs/reiserfs/xattr.c:97
lookup_and_delete_xattr fs/reiserfs/xattr.c:495 [inline]
reiserfs_xattr_set_handle+0x7bd/0xb00 fs/reiserfs/xattr.c:530
reiserfs_xattr_set+0x454/0x5b0 fs/reiserfs/xattr.c:634
trusted_set+0xa7/0xd0 fs/reiserfs/xattr_trusted.c:31
__vfs_removexattr+0x155/0x1c0 fs/xattr.c:519
__vfs_removexattr_locked+0x1b0/0x440 fs/xattr.c:554
vfs_removexattr+0xcf/0x260 fs/xattr.c:576
ovl_do_removexattr fs/overlayfs/overlayfs.h:273 [inline]
ovl_removexattr fs/overlayfs/overlayfs.h:281 [inline]
ovl_make_workdir fs/overlayfs/super.c:1353 [inline]
ovl_get_workdir fs/overlayfs/super.c:1436 [inline]
ovl_fill_super+0x6ec5/0x7270 fs/overlayfs/super.c:1992
mount_nodev+0x64/0x120 fs/super.c:1426
legacy_get_tree+0x109/0x220 fs/fs_context.c:610
vfs_get_tree+0x8d/0x350 fs/super.c:1510
do_new_mount fs/namespace.c:3039 [inline]
path_mount+0x134b/0x1e40 fs/namespace.c:3369
do_mount fs/namespace.c:3382 [inline]
__do_sys_mount fs/namespace.c:3591 [inline]
__se_sys_mount fs/namespace.c:3568 [inline]
__x64_sys_mount+0x283/0x300 fs/namespace.c:3568
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: 0033:0x7fe5884ceab9
RSP: 002b:00007fe58847a2f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fe588554780 RCX: 00007fe5884ceab9
RDX: 0000000020000080 RSI: 00000000200000c0 RDI: 0000000000000000
RBP: 00007fe5885212d8 R08: 0000000020000480 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0079616c7265766f
R13: d5e172a4510865ec R14: 9837512483e3bdcd R15: 00007fe588554788
INFO: task syz-executor133:5905 blocked for more than 145 seconds.
Not tainted 6.4.0-rc2-next-20230515-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor133 state:D stack:28496 pid:5905 ppid:5006 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5343 [inline]
__schedule+0x1d15/0x5790 kernel/sched/core.c:6669
schedule+0xde/0x1a0 kernel/sched/core.c:6745
wb_wait_for_completion+0x182/0x240 fs/fs-writeback.c:192
sync_inodes_sb+0x1aa/0xa60 fs/fs-writeback.c:2736
sync_filesystem.part.0+0xe6/0x1d0 fs/sync.c:64
sync_filesystem+0x8f/0xc0 fs/sync.c:43
reiserfs_remount+0x129/0x1650 fs/reiserfs/super.c:1445
legacy_reconfigure+0x119/0x180 fs/fs_context.c:633
reconfigure_super+0x40c/0xa30 fs/super.c:956
do_remount fs/namespace.c:2701 [inline]
path_mount+0x1846/0x1e40 fs/namespace.c:3361
do_mount fs/namespace.c:3382 [inline]
__do_sys_mount fs/namespace.c:3591 [inline]
__se_sys_mount fs/namespace.c:3568 [inline]
__x64_sys_mount+0x283/0x300 fs/namespace.c:3568
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: 0033:0x7fe5884cff7a
RSP: 002b:00007fe580459118 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fe5804596b8 RCX: 00007fe5884cff7a
RDX: 00000000200001c0 RSI: 0000000020000100 RDI: 0000000000000000
RBP: 00000000ffffffff R08: 00007fe5804591b0 R09: 0000000000000000
R10: 0000000001a484bc R11: 0000000000000286 R12: 00000000200001c0
R13: 0000000020000100 R14: 0000000000000000 R15: 00000000200004c0
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/13:
#0:
ffffffff8c798530 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x31/0xd80 kernel/rcu/tasks.h:522
1 lock held by rcu_tasks_trace/14:
#0: ffffffff8c798230 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x31/0xd80 kernel/rcu/tasks.h:522
1 lock held by khungtaskd/28:
#0: ffffffff8c799140 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x51/0x390 kernel/locking/lockdep.c:6559
2 locks held by kworker/u4:2/41:
#0: ffff8880124e5938 ((wq_completion)writeback){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff8880124e5938 ((wq_completion)writeback){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff8880124e5938 ((wq_completion)writeback){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1324 [inline]
#0: ffff8880124e5938 ((wq_completion)writeback){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:643 [inline]
#0: ffff8880124e5938 ((wq_completion)writeback){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:670 [inline]
#0: ffff8880124e5938 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x883/0x15e0 kernel/workqueue.c:2378
#1: ffffc90000b27db0 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x8b7/0x15e0 kernel/workqueue.c:2382
2 locks held by kworker/1:2/900:
#0: ffff888012472538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888012472538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888012472538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1324 [inline]
#0: ffff888012472538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:643 [inline]
#0: ffff888012472538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:670 [inline]
#0: ffff888012472538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x883/0x15e0 kernel/workqueue.c:2378
#1: ffffc900051efdb0 ((work_completion)(&rew->rew_work)){+.+.}-{0:0}, at: process_one_work+0x8b7/0x15e0 kernel/workqueue.c:2382
2 locks held by kworker/u4:5/1041:
#0: ffff8880124e5938 ((wq_completion)writeback){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff8880124e5938 ((wq_completion)writeback){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff8880124e5938 ((wq_completion)writeback){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1324 [inline]
#0: ffff8880124e5938 ((wq_completion)writeback){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:643 [inline]
#0: ffff8880124e5938 ((wq_completion)writeback){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:670 [inline]
#0: ffff8880124e5938 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x883/0x15e0 kernel/workqueue.c:2378
#1: ffffc900055dfdb0 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x8b7/0x15e0 kernel/workqueue.c:2382
5 locks held by kworker/u4:6/2409:
7 locks held by udevd/4457:
2 locks held by getty/4757:
#0: ffff88802826e098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x26/0x80 drivers/tty/tty_ldisc.c:243
#1: ffffc900015902f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xef4/0x13e0 drivers/tty/n_tty.c:2176
2 locks held by syz-executor133/5004:
#0: ffff88806ef360e0 (&type->s_umount_key#42){+.+.}-{3:3}, at: deactivate_super+0xa9/0xd0 fs/super.c:361
#1: ffffffff8c7a4538 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:293 [inline]
#1: ffffffff8c7a4538 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x64a/0x770 kernel/rcu/tree_exp.h:992
4 locks held by syz-executor133/5112:
#0:
ffff88802b6260e0 (&type->s_umount_key#41/1){+.+.}-{3:3}, at: alloc_super+0x22e/0xb60 fs/super.c:228
#1: ffff888077d9c460 (sb_writers#9){.+.+}-{0:0}, at: ovl_make_workdir fs/overlayfs/super.c:1282 [inline]
#1: ffff888077d9c460 (sb_writers#9){.+.+}-{0:0}, at: ovl_get_workdir fs/overlayfs/super.c:1436 [inline]
#1: ffff888077d9c460 (sb_writers#9){.+.+}-{0:0}, at: ovl_fill_super+0x1c5e/0x7270 fs/overlayfs/super.c:1992
#2: ffff888070540980 (&type->i_mutex_dir_key#6){++++}-{3:3}, at: inode_lock include/linux/fs.h:775 [inline]
#2: ffff888070540980 (&type->i_mutex_dir_key#6){++++}-{3:3}, at: vfs_removexattr+0xbb/0x260 fs/xattr.c:575
#3: ffff888075762400 (&type->i_mutex_dir_key#6/3){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:810 [inline]
#3: ffff888075762400 (&type->i_mutex_dir_key#6/3){+.+.}-{3:3}, at: lookup_and_delete_xattr fs/reiserfs/xattr.c:487 [inline]
#3: ffff888075762400 (&type->i_mutex_dir_key#6/3){+.+.}-{3:3}, at: reiserfs_xattr_set_handle+0x72c/0xb00 fs/reiserfs/xattr.c:530
2 locks held by syz-executor133/5129:
#0: ffff888077d9c0e0 (&type->s_umount_key#42){+.+.}-{3:3}, at: do_remount fs/namespace.c:2698 [inline]
#0: ffff888077d9c0e0 (&type->s_umount_key#42){+.+.}-{3:3}, at: path_mount+0x1401/0x1e40 fs/namespace.c:3361
#1: ffff88801f1827d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:364 [inline]
#1: ffff88801f1827d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x190/0xa60 fs/fs-writeback.c:2734
4 locks held by syz-executor133/5894:
#0: ffff8880294a80e0 (&type->s_umount_key#41/1){+.+.}-{3:3}, at: alloc_super+0x22e/0xb60 fs/super.c:228
#1: ffff888141348460 (sb_writers#9){.+.+}-{0:0}, at: ovl_make_workdir fs/overlayfs/super.c:1282 [inline]
#1: ffff888141348460 (sb_writers#9){.+.+}-{0:0}, at: ovl_get_workdir fs/overlayfs/super.c:1436 [inline]
#1: ffff888141348460 (sb_writers#9){.+.+}-{0:0}, at: ovl_fill_super+0x1c5e/0x7270 fs/overlayfs/super.c:1992
#2: ffff88807054aaa0 (&type->i_mutex_dir_key#6){++++}-{3:3}, at: inode_lock include/linux/fs.h:775 [inline]
#2: ffff88807054aaa0 (&type->i_mutex_dir_key#6){++++}-{3:3}, at: vfs_removexattr+0xbb/0x260 fs/xattr.c:575
#3: ffff88807054c520 (&type->i_mutex_dir_key#6/3){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:810 [inline]
#3: ffff88807054c520 (&type->i_mutex_dir_key#6/3){+.+.}-{3:3}, at: lookup_and_delete_xattr fs/reiserfs/xattr.c:487 [inline]
#3: ffff88807054c520 (&type->i_mutex_dir_key#6/3){+.+.}-{3:3}, at: reiserfs_xattr_set_handle+0x72c/0xb00 fs/reiserfs/xattr.c:530
2 locks held by syz-executor133/5905:
#0: ffff8881413480e0 (&type->s_umount_key#42){+.+.}-{3:3}, at: do_remount fs/namespace.c:2698 [inline]
#0: ffff8881413480e0 (&type->s_umount_key#42){+.+.}-{3:3}, at: path_mount+0x1401/0x1e40 fs/namespace.c:3361
#1: ffff8881413747d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:364 [inline]
#1: ffff8881413747d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x190/0xa60 fs/fs-writeback.c:2734
2 locks held by syz-executor133/8730:
#0: ffff8880766b20e0 (&type->s_umount_key#41/1){+.+.}-{3:3}, at: alloc_super+0x22e/0xb60 fs/super.c:228
#1: ffffffff8c7a4538 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:325 [inline]
#1: ffffffff8c7a4538 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x3e8/0x770 kernel/rcu/tree_exp.h:992
1 lock held by syz-executor133/8734:
#0: ffff88807673c0e0 (&type->s_umount_key#41/1){+.+.}-{3:3}, at: alloc_super+0x22e/0xb60 fs/super.c:228
1 lock held by syz-executor133/8733:
#0: ffff8880700f00e0 (&type->s_umount_key#41/1){+.+.}-{3:3}, at: alloc_super+0x22e/0xb60 fs/super.c:228
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.4.0-rc2-next-20230515-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xd9/0x150 lib/dump_stack.c:106
nmi_cpu_backtrace+0x29c/0x350 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x2a4/0x300 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+0xe16/0x1090 kernel/hung_task.c:379
kthread+0x344/0x440 kernel/kthread.c:379
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: 5004 Comm: syz-executor133 Not tainted 6.4.0-rc2-next-20230515-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023
RIP: 0010:task_irq_context kernel/locking/lockdep.c:4585 [inline]
RIP: 0010:__lock_acquire+0x315/0x5f30 kernel/locking/lockdep.c:5025
Code: 02 00 0f 85 1b 3f 00 00 48 8b 44 24 20 48 8d bd ac 0a 00 00 48 ba 00 00 00 00 00 fc ff df 48 89 fe 48 89 7c 24 40 49 89 47 18 <65> 8b 05 6c 23 9d 7e 85 c0 0f 95 c0 48 c1 ee 03 83 e7 07 0f b6 34
RSP: 0018:ffffc90003acfa30 EFLAGS: 00000046
RAX: 0000000000000000 RBX: 1ffff92000759f76 RCX: 0000000000000000
RDX: dffffc0000000000 RSI: ffff8880286de3ec RDI: ffff8880286de3ec
RBP: ffff8880286dd940 R08: 0000000000000000 R09: 0000000000000000
R10: 1ffff110050dbc8f R11: 0000000000000082 R12: ffff88807857e0a8
R13: 0000000000000000 R14: ffff8880286de458 R15: ffff8880286de480
FS: 00005555568c8300(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005555568d9668 CR3: 00000000273c2000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
lock_acquire.part.0+0x11c/0x370 kernel/locking/lockdep.c:5705
__raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
_raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:154
spin_lock include/linux/spinlock.h:350 [inline]
__dentry_kill+0x438/0x640 fs/dcache.c:614
shrink_dentry_list+0x12c/0x4f0 fs/dcache.c:1201
shrink_dcache_parent+0x202/0x400 fs/dcache.c:1628
vfs_rmdir.part.0+0x272/0x5a0 fs/namei.c:4202
vfs_rmdir fs/namei.c:4183 [inline]
do_rmdir+0x3ae/0x430 fs/namei.c:4257
__do_sys_rmdir fs/namei.c:4276 [inline]
__se_sys_rmdir fs/namei.c:4274 [inline]
__x64_sys_rmdir+0xca/0x110 fs/namei.c:4274
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: 0033:0x7fe5884ce567
Code: 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 54 00 00 00 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:00007ffcc568faa8 EFLAGS: 00000207 ORIG_RAX: 0000000000000054
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fe5884ce567
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00007ffcc5690c20
RBP: 00007ffcc568fb60 R08: 0000000000000000 R09: 00007ffcc568f940
R10: 00005555568c964b R11: 0000000000000207 R12: 00007ffcc5690c20
R13: 0000000000000065 R14: 00007ffcc568fad0 R15: 00007ffcc5690c40
INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.081 msecs