INFO: task syz-executor.2:14561 blocked for more than 143 seconds.
Not tainted 6.3.0-syzkaller-07919-g6e98b09da931 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:24616 pid:14561 ppid:5005 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5307 [inline]
__schedule+0x173b/0x4630 kernel/sched/core.c:6625
schedule+0xc3/0x180 kernel/sched/core.c:6701
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6760
rwsem_down_write_slowpath+0xedd/0x13a0 kernel/locking/rwsem.c:1178
__down_write_common+0x1aa/0x200 kernel/locking/rwsem.c:1306
lock_rename+0x186/0x1a0
do_renameat2+0x549/0x13c0 fs/namei.c:4864
__do_sys_rename fs/namei.c:4969 [inline]
__se_sys_rename fs/namei.c:4967 [inline]
__x64_sys_rename+0x86/0x90 fs/namei.c:4967
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f115e48c169
RSP: 002b:00007f115f185168 EFLAGS: 00000246 ORIG_RAX: 0000000000000052
RAX: ffffffffffffffda RBX: 00007f115e5abf80 RCX: 00007f115e48c169
RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000020000100
RBP: 00007f115e4e7ca1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffed73c91af R14: 00007f115f185300 R15: 0000000000022000
INFO: task syz-executor.2:14567 blocked for more than 144 seconds.
Not tainted 6.3.0-syzkaller-07919-g6e98b09da931 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:24608 pid:14567 ppid:5005 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5307 [inline]
__schedule+0x173b/0x4630 kernel/sched/core.c:6625
schedule+0xc3/0x180 kernel/sched/core.c:6701
io_schedule+0x8c/0x100 kernel/sched/core.c:8887
bit_wait_io+0x12/0xc0 kernel/sched/wait_bit.c:209
__wait_on_bit_lock+0xbd/0x1a0 kernel/sched/wait_bit.c:90
out_of_line_wait_on_bit_lock+0x1d4/0x250 kernel/sched/wait_bit.c:117
wait_on_bit_lock_io include/linux/wait_bit.h:208 [inline]
__lock_buffer fs/buffer.c:70 [inline]
lock_buffer include/linux/buffer_head.h:400 [inline]
__sync_dirty_buffer+0x120/0x380 fs/buffer.c:2776
__ext4_handle_dirty_metadata+0x2a6/0x820 fs/ext4/ext4_jbd2.c:387
ext4_handle_dirty_dirblock+0x362/0x6f0 fs/ext4/namei.c:438
ext4_finish_convert_inline_dir+0x57b/0x6f0 fs/ext4/inline.c:1177
ext4_convert_inline_data_nolock+0xa01/0xd80 fs/ext4/inline.c:1254
ext4_try_add_inline_entry+0x809/0xb70 fs/ext4/inline.c:1327
ext4_add_entry+0x535/0x1010 fs/ext4/namei.c:2384
ext4_mkdir+0x553/0xce0 fs/ext4/namei.c:3006
vfs_mkdir+0x29d/0x450 fs/namei.c:4038
do_mkdirat+0x264/0x520 fs/namei.c:4061
__do_sys_mkdirat fs/namei.c:4076 [inline]
__se_sys_mkdirat fs/namei.c:4074 [inline]
__x64_sys_mkdirat+0x89/0xa0 fs/namei.c:4074
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f115e48c169
RSP: 002b:00007f115f164168 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
RAX: ffffffffffffffda RBX: 00007f115e5ac050 RCX: 00007f115e48c169
RDX: 0000000000000000 RSI: 0000000020000340 RDI: 0000000000000004
RBP: 00007f115e4e7ca1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffed73c91af R14: 00007f115f164300 R15: 0000000000022000
INFO: task syz-executor.2:14568 blocked for more than 144 seconds.
Not tainted 6.3.0-syzkaller-07919-g6e98b09da931 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:29080 pid:14568 ppid:5005 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5307 [inline]
__schedule+0x173b/0x4630 kernel/sched/core.c:6625
schedule+0xc3/0x180 kernel/sched/core.c:6701
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6760
rwsem_down_write_slowpath+0xedd/0x13a0 kernel/locking/rwsem.c:1178
__down_write_common+0x1aa/0x200 kernel/locking/rwsem.c:1306
inode_lock_nested include/linux/fs.h:796 [inline]
do_unlinkat+0x264/0x940 fs/namei.c:4301
__do_sys_unlink fs/namei.c:4364 [inline]
__se_sys_unlink fs/namei.c:4362 [inline]
__x64_sys_unlink+0x49/0x50 fs/namei.c:4362
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f115e48c169
RSP: 002b:00007f115f143168 EFLAGS: 00000246 ORIG_RAX: 0000000000000057
RAX: ffffffffffffffda RBX: 00007f115e5ac120 RCX: 00007f115e48c169
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000200003c0
RBP: 00007f115e4e7ca1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffed73c91af R14: 00007f115f143300 R15: 0000000000022000
INFO: task syz-executor.2:14569 blocked for more than 145 seconds.
Not tainted 6.3.0-syzkaller-07919-g6e98b09da931 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:29096 pid:14569 ppid:5005 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5307 [inline]
__schedule+0x173b/0x4630 kernel/sched/core.c:6625
schedule+0xc3/0x180 kernel/sched/core.c:6701
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6760
rwsem_down_write_slowpath+0xedd/0x13a0 kernel/locking/rwsem.c:1178
__down_write_common+0x1aa/0x200 kernel/locking/rwsem.c:1306
inode_lock_nested include/linux/fs.h:796 [inline]
do_rmdir+0x25a/0x690 fs/namei.c:4168
__do_sys_rmdir fs/namei.c:4199 [inline]
__se_sys_rmdir fs/namei.c:4197 [inline]
__x64_sys_rmdir+0x49/0x50 fs/namei.c:4197
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f115e48c169
RSP: 002b:00007f115f122168 EFLAGS: 00000246
ORIG_RAX: 0000000000000054
RAX: ffffffffffffffda RBX: 00007f115e5ac1f0 RCX: 00007f115e48c169
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000200000c0
RBP: 00007f115e4e7ca1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffed73c91af R14: 00007f115f122300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/13:
#0: ffffffff8cf26030 (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/14:
#0: ffffffff8cf263f0 (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: ffffffff8cf25e60 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
2 locks held by kworker/u4:3/42:
#0: ffff888012479138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x77e/0x10e0 kernel/workqueue.c:2363
#1: ffffc90000b37d20 (connector_reaper_work){+.+.}-{0:0}, at: process_one_work+0x7c8/0x10e0 kernel/workqueue.c:2365
2 locks held by kworker/0:2/896:
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x77e/0x10e0 kernel/workqueue.c:2363
#1: ffffc900051efd20 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x7c8/0x10e0 kernel/workqueue.c:2365
1 lock held by udevd/4431:
2 locks held by getty/4728:
#0: ffff8880288a5098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:244
#1: ffffc900015802f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6ab/0x1db0 drivers/tty/n_tty.c:2177
1 lock held by syz-executor.1/5023:
#0: ffffffff8cf2b538 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:325 [inline]
#0: ffffffff8cf2b538 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x46c/0x890 kernel/rcu/tree_exp.h:992
2 locks held by kworker/0:6/5066:
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x77e/0x10e0 kernel/workqueue.c:2363
#1: ffffc90004e4fd20 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x7c8/0x10e0 kernel/workqueue.c:2365
2 locks held by kworker/0:7/5072:
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x77e/0x10e0 kernel/workqueue.c:2363
#1: ffffc90004e87d20 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x7c8/0x10e0 kernel/workqueue.c:2365
2 locks held by kworker/0:9/5106:
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x77e/0x10e0 kernel/workqueue.c:2363
#1: ffffc90004ef7d20 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x7c8/0x10e0 kernel/workqueue.c:2365
2 locks held by kworker/0:12/5390:
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x77e/0x10e0 kernel/workqueue.c:2363
#1: ffffc90005dffd20 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x7c8/0x10e0 kernel/workqueue.c:2365
2 locks held by kworker/0:13/5391:
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x77e/0x10e0 kernel/workqueue.c:2363
#1: ffffc90005e4fd20 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x7c8/0x10e0 kernel/workqueue.c:2365
2 locks held by kworker/0:14/5392:
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x77e/0x10e0 kernel/workqueue.c:2363
#1:
ffffc90005f47d20 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x7c8/0x10e0 kernel/workqueue.c:2365
2 locks held by kworker/0:15/5393:
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x77e/0x10e0 kernel/workqueue.c:2363
#1: ffffc90005f57d20 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x7c8/0x10e0 kernel/workqueue.c:2365
2 locks held by kworker/0:17/5664:
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x77e/0x10e0 kernel/workqueue.c:2363
#1: ffffc9000b8cfd20 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x7c8/0x10e0 kernel/workqueue.c:2365
3 locks held by kworker/1:15/5837:
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x77e/0x10e0 kernel/workqueue.c:2363
#1: ffffc90014e47d20 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x7c8/0x10e0 kernel/workqueue.c:2365
#2: ffffffff8cf2b538 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:293 [inline]
#2: ffffffff8cf2b538 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x3a3/0x890 kernel/rcu/tree_exp.h:992
2 locks held by kworker/1:21/13083:
#0: ffff888012472538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x77e/0x10e0 kernel/workqueue.c:2363
#1: ffffc9000381fd20 ((work_completion)(&rew->rew_work)){+.+.}-{0:0}, at: process_one_work+0x7c8/0x10e0 kernel/workqueue.c:2365
3 locks held by kworker/u4:25/13287:
2 locks held by syz-executor.2/14561:
#0: ffff888028880460 (sb_writers#4){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90 fs/namespace.c:394
#1: ffff8880278d6800 (&type->i_mutex_dir_key#3/1){+.+.}-{3:3}, at: lock_rename+0x186/0x1a0
3 locks held by syz-executor.2/14567:
#0: ffff888028880460 (sb_writers#4){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90 fs/namespace.c:394
#1: ffff8880278d6800 (&type->i_mutex_dir_key#3/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:796 [inline]
#1: ffff8880278d6800 (&type->i_mutex_dir_key#3/1){+.+.}-{3:3}, at: filename_create+0x25a/0x530 fs/namei.c:3808
#2: ffff8880278d64c8 (&ei->xattr_sem){++++}-{3:3}, at: ext4_write_lock_xattr fs/ext4/xattr.h:155 [inline]
#2: ffff8880278d64c8 (&ei->xattr_sem){++++}-{3:3}, at: ext4_try_add_inline_entry+0xf6/0xb70 fs/ext4/inline.c:1285
2 locks held by syz-executor.2/14568:
#0: ffff888028880460 (sb_writers#4){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90 fs/namespace.c:394
#1: ffff8880278d6800 (&type->i_mutex_dir_key#3/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:796 [inline]
#1: ffff8880278d6800 (&type->i_mutex_dir_key#3/1){+.+.}-{3:3}, at: do_unlinkat+0x264/0x940 fs/namei.c:4301
2 locks held by syz-executor.2/14569:
#0: ffff888028880460 (sb_writers#4){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90 fs/namespace.c:394
#1: ffff8880278d6800 (&type->i_mutex_dir_key#3/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:796 [inline]
#1: ffff8880278d6800 (&type->i_mutex_dir_key#3/1){+.+.}-{3:3}, at: do_rmdir+0x25a/0x690 fs/namei.c:4168
2 locks held by syz-executor.0/14724:
#0: ffff888079720460 (sb_writers#4){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90 fs/namespace.c:394
#1: ffff888032c22200 (&type->i_mutex_dir_key#3/1){+.+.}-{3:3}, at: lock_rename+0x186/0x1a0
3 locks held by syz-executor.0/14738:
#0: ffff888079720460 (sb_writers#4){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90 fs/namespace.c:394
#1: ffff888032c22200 (&type->i_mutex_dir_key#3/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:796 [inline]
#1: ffff888032c22200 (&type->i_mutex_dir_key#3/1){+.+.}-{3:3}, at: filename_create+0x25a/0x530 fs/namei.c:3808
#2: ffff888032c21ec8 (&ei->xattr_sem){++++}-{3:3}, at: ext4_write_lock_xattr fs/ext4/xattr.h:155 [inline]
#2: ffff888032c21ec8 (&ei->xattr_sem){++++}-{3:3}, at: ext4_try_add_inline_entry+0xf6/0xb70 fs/ext4/inline.c:1285
2 locks held by syz-executor.0/14743:
#0: ffff888079720460 (sb_writers#4){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90 fs/namespace.c:394
#1: ffff888032c22200 (&type->i_mutex_dir_key#3/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:796 [inline]
#1: ffff888032c22200 (&type->i_mutex_dir_key#3/1){+.+.}-{3:3}, at: do_unlinkat+0x264/0x940 fs/namei.c:4301
2 locks held by syz-executor.0/14745:
#0: ffff888079720460 (sb_writers#4){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90 fs/namespace.c:394
#1: ffff888032c22200 (&type->i_mutex_dir_key#3/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:796 [inline]
#1: ffff888032c22200 (&type->i_mutex_dir_key#3/1){+.+.}-{3:3}, at: do_rmdir+0x25a/0x690 fs/namei.c:4168
2 locks held by kworker/0:21/14796:
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x77e/0x10e0 kernel/workqueue.c:2363
#1: ffffc900055efd20 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x7c8/0x10e0 kernel/workqueue.c:2365
2 locks held by kworker/0:22/14797:
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x77e/0x10e0 kernel/workqueue.c:2363
#1: ffffc900055ffd20 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x7c8/0x10e0 kernel/workqueue.c:2365
2 locks held by kworker/0:24/15968:
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x77e/0x10e0 kernel/workqueue.c:2363
#1: ffffc90019fe7d20 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x7c8/0x10e0 kernel/workqueue.c:2365
2 locks held by kworker/0:25/15969:
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x77e/0x10e0 kernel/workqueue.c:2363
#1: ffffc9001a167d20 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x7c8/0x10e0 kernel/workqueue.c:2365
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.3.0-syzkaller-07919-g6e98b09da931 #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+0x187/0x300 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+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 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 15974 Comm: syz-executor.5 Not tainted 6.3.0-syzkaller-07919-g6e98b09da931 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023
RIP: 0010:__cq_dequeue kernel/locking/lockdep.c:1507 [inline]
RIP: 0010:__bfs kernel/locking/lockdep.c:1742 [inline]
RIP: 0010:__bfs_backwards kernel/locking/lockdep.c:1850 [inline]
RIP: 0010:check_irq_usage kernel/locking/lockdep.c:2800 [inline]
RIP: 0010:check_prev_add kernel/locking/lockdep.c:3112 [inline]
RIP: 0010:check_prevs_add kernel/locking/lockdep.c:3227 [inline]
RIP: 0010:validate_chain+0x1a19/0x58e0 kernel/locking/lockdep.c:3842
Code: 00 81 fb 00 10 00 00 0f 83 eb 04 00 00 48 8d 1c dd c0 77 b4 90 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 80 3c 08 00 <74> 08 48 89 df e8 fd 78 76 00 4c 8b 23 8b 05 34 9d 49 0f ff c0 25
RSP: 0018:ffffc9001a196020 EFLAGS: 00000046
RAX: 1ffffffff216907b RBX: ffffffff90b483d8 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffc9001a196140
RBP: ffffc9001a1962c8 R08: dffffc0000000000 R09: fffffbfff205fa39
R10: 0000000000000000 R11: dffffc0000000001 R12: ffffffff915217b8
R13: ffff8880831ea9e8 R14: ffffffff90066cb0 R15: ffffffff90066cb0
FS: 00007f8fb0bfe700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8fa97bc718 CR3: 00000000312ec000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__lock_acquire+0x1295/0x2000 kernel/locking/lockdep.c:5074
lock_acquire+0x1e3/0x520 kernel/locking/lockdep.c:5691
__raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
_raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:154
mm_cid_put kernel/sched/sched.h:3270 [inline]
switch_mm_cid kernel/sched/sched.h:3298 [inline]
prepare_task_switch kernel/sched/core.c:5117 [inline]
context_switch kernel/sched/core.c:5258 [inline]
__schedule+0x11e1/0x4630 kernel/sched/core.c:6625
preempt_schedule_irq+0xfb/0x1b0 kernel/sched/core.c:6937
irqentry_exit+0x57/0x80 kernel/entry/common.c:433
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:mod_delayed_work_on+0x1d3/0x250 kernel/workqueue.c:1751
Code: 00 00 00 e8 0f 50 31 00 4c 8b 3c 24 4d 85 e4 48 bb 00 00 00 00 00 fc ff df 75 07 e8 f7 4f 31 00 eb 06 e8 f0 4f 31 00 fb 31 ff <44> 89 f6 e8 95 53 31 00 45 85 f6 0f 95 c0 48 c7 44 24 20 0e 36 e0
RSP: 0018:ffffc9001a1968e0 EFLAGS: 00000246
RAX: ffffffff8159ba50 RBX: dffffc0000000000 RCX: 0000000000040000
RDX: ffffc90003ea2000 RSI: 000000000003840f RDI: 0000000000000000
RBP: ffffc9001a1969b0 R08: ffffffff8159ba23 R09: fffffbfff205fa5a
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000200
R13: 0000000000000046 R14: 0000000000000000 R15: 1ffff92003432d20
kblockd_mod_delayed_work_on+0x29/0x40 block/blk-core.c:1038
blk_mq_flush_plug_list+0x103e/0x1210 block/blk-mq.c:2783
__blk_flush_plug+0x46e/0x4f0 block/blk-core.c:1144
blk_flush_plug include/linux/blkdev.h:1005 [inline]
sched_submit_work kernel/sched/core.c:6681 [inline]
schedule+0x9f/0x180 kernel/sched/core.c:6698
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6760
rwsem_down_write_slowpath+0xedd/0x13a0 kernel/locking/rwsem.c:1178
__down_write_common+0x1aa/0x200 kernel/locking/rwsem.c:1306
__btrfs_tree_lock+0x3c/0x2a0 fs/btrfs/locking.c:197
lock_extent_buffer_for_io+0xa5/0x730 fs/btrfs/extent_io.c:1712
submit_eb_page fs/btrfs/extent_io.c:2221 [inline]
btree_write_cache_pages+0x1139/0x1970 fs/btrfs/extent_io.c:2291
do_writepages+0x3a6/0x670 mm/page-writeback.c:2551
filemap_fdatawrite_wbc+0x125/0x180 mm/filemap.c:390
__filemap_fdatawrite_range mm/filemap.c:423 [inline]
filemap_fdatawrite_range+0x16e/0x1e0 mm/filemap.c:441
btrfs_write_marked_extents+0x2fc/0x510 fs/btrfs/transaction.c:1085
btrfs_write_and_wait_transaction fs/btrfs/transaction.c:1197 [inline]
btrfs_commit_transaction+0x20d9/0x3370 fs/btrfs/transaction.c:2479
btrfs_sync_file+0xcb3/0x10e0 fs/btrfs/file.c:2001
generic_write_sync include/linux/fs.h:2455 [inline]
btrfs_do_write_iter+0xccc/0x1270 fs/btrfs/file.c:1684
call_write_iter include/linux/fs.h:1854 [inline]
new_sync_write fs/read_write.c:491 [inline]
vfs_write+0x7da/0xbf0 fs/read_write.c:584
ksys_write+0x1a0/0x2c0 fs/read_write.c:637
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f8fb208c169
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:00007f8fb0bfe168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f8fb21abf80 RCX: 00007f8fb208c169
RDX: 0000000000000049 RSI: 0000000020000180 RDI: 0000000000000005
RBP: 00007f8fb20e7ca1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc2412b01f R14: 00007f8fb0bfe300 R15: 0000000000022000