INFO: task syz-executor.5:5886 blocked for more than 143 seconds.
Not tainted 6.3.0-rc7-syzkaller-00152-g2af3e53a4dc0 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:24160 pid:5886 ppid:5115 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 include/linux/fs.h:758 [inline]
ext4_buffered_write_iter+0xaf/0x3a0 fs/ext4/file.c:283
ext4_file_write_iter+0x1d6/0x1930
do_iter_write+0x6ea/0xc50 fs/read_write.c:861
iter_file_splice_write+0x843/0xfe0 fs/splice.c:778
do_splice_from fs/splice.c:856 [inline]
direct_splice_actor+0xe7/0x1c0 fs/splice.c:1022
splice_direct_to_actor+0x4c4/0xbd0 fs/splice.c:977
do_splice_direct+0x283/0x3d0 fs/splice.c:1065
do_sendfile+0x620/0xff0 fs/read_write.c:1255
__do_sys_sendfile64 fs/read_write.c:1323 [inline]
__se_sys_sendfile64+0x17c/0x1e0 fs/read_write.c:1309
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: 0033:0x7f45cd08c169
RSP: 002b:00007f45cbbfe168 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f45cd1abf80 RCX: 00007f45cd08c169
RDX: 0000000000000000 RSI: 0000000000000007 RDI: 0000000000000006
RBP: 00007f45cd0e7ca1 R08: 0000000000000000 R09: 0000000000000000
R10: 0001000000201005 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd35adcf1f R14: 00007f45cbbfe300 R15: 0000000000022000
INFO: task syz-executor.5:5896 blocked for more than 144 seconds.
Not tainted 6.3.0-rc7-syzkaller-00152-g2af3e53a4dc0 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:24368 pid:5896 ppid:5115 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:2780
__ext4_handle_dirty_metadata+0x2a6/0x820 fs/ext4/ext4_jbd2.c:387
ext4_convert_inline_data_nolock+0xaba/0xd80 fs/ext4/inline.c:1254
ext4_convert_inline_data+0x4da/0x620 fs/ext4/inline.c:2065
ext4_fallocate+0x14d/0x2050 fs/ext4/extents.c:4701
vfs_fallocate+0x54b/0x6b0 fs/open.c:324
ksys_fallocate fs/open.c:347 [inline]
__do_sys_fallocate fs/open.c:355 [inline]
__se_sys_fallocate fs/open.c:353 [inline]
__x64_sys_fallocate+0xbd/0x100 fs/open.c:353
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: 0033:0x7f45cd08c169
RSP: 002b:00007f45c381d168 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
RAX: ffffffffffffffda RBX: 00007f45cd1ac050 RCX: 00007f45cd08c169
RDX: 0000000000020040 RSI: 0000000000000000 RDI: 0000000000000009
RBP: 00007f45cd0e7ca1 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000001f R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd35adcf1f R14: 00007f45c381d300 R15: 0000000000022000
INFO: task syz-executor.5:5912 blocked for more than 145 seconds.
Not tainted 6.3.0-rc7-syzkaller-00152-g2af3e53a4dc0 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:28216 pid:5912 ppid:5115 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_read_slowpath+0x5f4/0x950 kernel/locking/rwsem.c:1086
__down_read_common+0x61/0x2c0 kernel/locking/rwsem.c:1250
inode_lock_shared include/linux/fs.h:768 [inline]
ext4_dio_read_iter fs/ext4/file.c:78 [inline]
ext4_file_read_iter+0x294/0x670 fs/ext4/file.c:145
call_read_iter include/linux/fs.h:1845 [inline]
generic_file_splice_read+0x240/0x640 fs/splice.c:402
do_splice_to fs/splice.c:885 [inline]
splice_direct_to_actor+0x40c/0xbd0 fs/splice.c:956
do_splice_direct+0x283/0x3d0 fs/splice.c:1065
do_sendfile+0x620/0xff0 fs/read_write.c:1255
__do_sys_sendfile64 fs/read_write.c:1323 [inline]
__se_sys_sendfile64+0x17c/0x1e0 fs/read_write.c:1309
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: 0033:0x7f45cd08c169
RSP: 002b:00007f45c37fc168 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f45cd1ac120 RCX: 00007f45cd08c169
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 0000000000000008
RBP: 00007f45cd0e7ca1 R08: 0000000000000000 R09: 0000000000000000
R10: 0001000000201005 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd35adcf1f R14: 00007f45c37fc300 R15: 0000000000022000
INFO: task syz-executor.5:5916 blocked for more than 145 seconds.
Not tainted 6.3.0-rc7-syzkaller-00152-g2af3e53a4dc0 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:29096 pid:5916 ppid:5115 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_read_slowpath+0x5f4/0x950 kernel/locking/rwsem.c:1086
__down_read_common+0x61/0x2c0 kernel/locking/rwsem.c:1250
inode_lock_shared include/linux/fs.h:768 [inline]
ext4_llseek+0x14f/0x230 fs/ext4/file.c:926
vfs_llseek fs/read_write.c:289 [inline]
ksys_lseek fs/read_write.c:302 [inline]
__do_sys_lseek fs/read_write.c:313 [inline]
__se_sys_lseek fs/read_write.c:311 [inline]
__x64_sys_lseek+0x14c/0x1d0 fs/read_write.c:311
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: 0033:0x7f45cd08c169
RSP: 002b:00007f45c35db168 EFLAGS: 00000246 ORIG_RAX: 0000000000000008
RAX: ffffffffffffffda RBX: 00007f45cd1ac1f0 RCX: 00007f45cd08c169
RDX: 0000000000000004 RSI: 000000000000e3b3 RDI: 0000000000000009
RBP: 00007f45cd0e7ca1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd35adcf1f R14: 00007f45c35db300 R15: 0000000000022000
INFO: task syz-executor.5:5918 blocked for more than 146 seconds.
Not tainted 6.3.0-rc7-syzkaller-00152-g2af3e53a4dc0 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:28280 pid:5918 ppid:5115 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 include/linux/fs.h:758 [inline]
ext4_dio_write_iter fs/ext4/file.c:534 [inline]
ext4_file_write_iter+0x5d5/0x1930 fs/ext4/file.c:708
do_iter_write+0x6ea/0xc50 fs/read_write.c:861
vfs_writev fs/read_write.c:934 [inline]
do_pwritev+0x21a/0x360 fs/read_write.c:1031
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: 0033:0x7f45cd08c169
RSP: 002b:00007f45c33ba168 EFLAGS: 00000246 ORIG_RAX: 0000000000000148
RAX: ffffffffffffffda RBX: 00007f45cd1ac2c0 RCX: 00007f45cd08c169
RDX: 0000000000000002 RSI: 0000000020000040 RDI: 0000000000000009
RBP: 00007f45cd0e7ca1 R08: 0000000000010001 R09: 0000000000000015
R10: 00000000000017ff R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd35adcf1f R14: 00007f45c33ba300 R15: 0000000000022000
INFO: task syz-executor.5:5919 blocked for more than 147 seconds.
Not tainted 6.3.0-rc7-syzkaller-00152-g2af3e53a4dc0 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:26968 pid:5919 ppid:5115 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 include/linux/fs.h:758 [inline]
process_measurement+0x435/0x1ce0 security/integrity/ima/ima_main.c:243
ima_file_check+0xf1/0x170 security/integrity/ima/ima_main.c:539
do_open fs/namei.c:3562 [inline]
path_openat+0x280a/0x3170 fs/namei.c:3715
do_filp_open+0x234/0x490 fs/namei.c:3742
do_sys_openat2+0x13f/0x500 fs/open.c:1348
do_sys_open fs/open.c:1364 [inline]
__do_sys_open fs/open.c:1372 [inline]
__se_sys_open fs/open.c:1368 [inline]
__x64_sys_open+0x225/0x270 fs/open.c:1368
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: 0033:0x7f45cd08c169
RSP: 002b:00007f45c3199168 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007f45cd1ac390 RCX: 00007f45cd08c169
RDX: 0000000000000000 RSI: 0000000000141a42 RDI: 0000000020000a40
RBP: 00007f45cd0e7ca1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd35adcf1f R14: 00007f45c3199300 R15: 0000000000022000
Showing all locks held in the system:
2 locks held by kworker/u4:0/9:
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff8cf25570 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 kernel/rcu/tasks.h:510
1 lock held by rcu_tasks_trace/13:
#0: ffffffff8cf25d70 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 kernel/rcu/tasks.h:510
1 lock held by khungtaskd/28:
#0: ffffffff8cf253a0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
3 locks held by kworker/u4:3/46:
#0: ffff88801777c138 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x77e/0x10e0 kernel/workqueue.c:2363
#1: ffffc90000b77d20 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x7c8/0x10e0 kernel/workqueue.c:2365
#2: ffff8880167700e0 (&type->s_umount_key#41){.+.+}-{3:3}, at: trylock_super+0x1f/0xf0 fs/super.c:414
2 locks held by getty/4744:
#0: ffff888028445098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:244
#1: ffffc900015c02f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6ab/0x1db0 drivers/tty/n_tty.c:2177
1 lock held by syz-executor.2/5118:
#0: ffff88807a2920e0 (&type->s_umount_key#54){++++}-{3:3}, at: deactivate_super+0xad/0xf0 fs/super.c:361
1 lock held by syz-executor.3/5128:
#0: ffffffff8cf2a878 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:325 [inline]
#0: ffffffff8cf2a878 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x46c/0x890 kernel/rcu/tree_exp.h:989
2 locks held by kworker/0:8/5171:
#0: ffff888012472538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x77e/0x10e0 kernel/workqueue.c:2363
#1: ffffc90004d37d20 ((work_completion)(&rew->rew_work)){+.+.}-{0:0}, at: process_one_work+0x7c8/0x10e0 kernel/workqueue.c:2365
2 locks held by syz-executor.5/5886:
#0: ffff888035d44460 (sb_writers#4){.+.+}-{0:0}, at: do_sendfile+0x5fb/0xff0 fs/read_write.c:1254
#1: ffff8880341fde48 (&sb->s_type->i_mutex_key#7){++++}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline]
#1: ffff8880341fde48 (&sb->s_type->i_mutex_key#7){++++}-{3:3}, at: ext4_buffered_write_iter+0xaf/0x3a0 fs/ext4/file.c:283
3 locks held by syz-executor.5/5896:
#0: ffff888035d44460 (sb_writers#4){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2505 [inline]
#0: ffff888035d44460 (sb_writers#4){.+.+}-{0:0}, at: vfs_fallocate+0x4be/0x6b0 fs/open.c:323
#1: ffff8880341fde48 (&sb->s_type->i_mutex_key#7){++++}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline]
#1: ffff8880341fde48 (&sb->s_type->i_mutex_key#7){++++}-{3:3}, at: ext4_fallocate+0x145/0x2050 fs/ext4/extents.c:4700
#2: ffff8880341fdb10 (&ei->xattr_sem){++++}-{3:3}, at: ext4_write_lock_xattr fs/ext4/xattr.h:155 [inline]
#2: ffff8880341fdb10 (&ei->xattr_sem){++++}-{3:3}, at: ext4_convert_inline_data+0x3b6/0x620 fs/ext4/inline.c:2063
2 locks held by syz-executor.5/5912:
#0: ffff888035d44460 (sb_writers#4){.+.+}-{0:0}, at: do_sendfile+0x5fb/0xff0 fs/read_write.c:1254
#1: ffff8880341fde48 (&sb->s_type->i_mutex_key#7){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:768 [inline]
#1: ffff8880341fde48 (&sb->s_type->i_mutex_key#7){++++}-{3:3}, at: ext4_dio_read_iter fs/ext4/file.c:78 [inline]
#1: ffff8880341fde48 (&sb->s_type->i_mutex_key#7){++++}-{3:3}, at: ext4_file_read_iter+0x294/0x670 fs/ext4/file.c:145
2 locks held by syz-executor.5/5916:
#0: ffff888077c3b268 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x254/0x2f0 fs/file.c:1047
#1: ffff8880341fde48 (&sb->s_type->i_mutex_key#7){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:768 [inline]
#1: ffff8880341fde48 (&sb->s_type->i_mutex_key#7){++++}-{3:3}, at: ext4_llseek+0x14f/0x230 fs/ext4/file.c:926
2 locks held by syz-executor.5/5918:
#0: ffff888035d44460 (sb_writers#4){.+.+}-{0:0}, at: vfs_writev fs/read_write.c:933 [inline]
#0: ffff888035d44460 (sb_writers#4){.+.+}-{0:0}, at: do_pwritev+0x1fe/0x360 fs/read_write.c:1031
#1: ffff8880341fde48 (&sb->s_type->i_mutex_key#7){++++}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline]
#1: ffff8880341fde48 (&sb->s_type->i_mutex_key#7){++++}-{3:3}, at: ext4_dio_write_iter fs/ext4/file.c:534 [inline]
#1: ffff8880341fde48 (&sb->s_type->i_mutex_key#7){++++}-{3:3}, at: ext4_file_write_iter+0x5d5/0x1930 fs/ext4/file.c:708
2 locks held by syz-executor.5/5919:
#0: ffff888035d44460 (sb_writers#4){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90 fs/namespace.c:394
#1: ffff8880341fde48 (&sb->s_type->i_mutex_key#7){++++}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline]
#1: ffff8880341fde48 (&sb->s_type->i_mutex_key#7){++++}-{3:3}, at: process_measurement+0x435/0x1ce0 security/integrity/ima/ima_main.c:243
1 lock held by syz-executor.5/6298:
#0: ffffffff8cf2a878 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:325 [inline]
#0: ffffffff8cf2a878 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x46c/0x890 kernel/rcu/tree_exp.h:989
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.3.0-rc7-syzkaller-00152-g2af3e53a4dc0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/30/2023
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+0x270/0x300 kernel/kthread.c:376
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: 21 Comm: ksoftirqd/1 Not tainted 6.3.0-rc7-syzkaller-00152-g2af3e53a4dc0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/30/2023
RIP: 0010:check_kcov_mode kernel/kcov.c:173 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x27/0x60 kernel/kcov.c:207
Code: 0f 1f 00 f3 0f 1e fa 48 8b 04 24 65 48 8b 0d e0 3a 79 7e 65 8b 15 e1 3a 79 7e f7 c2 00 01 ff 00 74 11 f7 c2 00 01 00 00 74 35 <83> b9 74 15 00 00 00 74 2c 8b 91 50 15 00 00 83 fa 02 75 21 48 8b
RSP: 0018:ffffc900001b7900 EFLAGS: 00000006
RAX: ffffffff842d0c3f RBX: ffffffffffffffff RCX: ffff888017311d40
RDX: 0000000080000100 RSI: 0000000000001000 RDI: ffffffff901955f8
RBP: dffffc0000000000 R08: ffffffff842d0b0a R09: ffffffff9004e000
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: 0000000000000000 R14: 00000000000006a8 R15: 0000000000003530
FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fffb3a04e08 CR3: 000000000cd30000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__bitmap_andnot+0x19f/0x320 lib/bitmap.c:285
bitmap_andnot include/linux/bitmap.h:351 [inline]
__free_zapped_classes+0x2cd/0x2f0 kernel/locking/lockdep.c:6108
free_zapped_rcu+0xf2/0x2a0 kernel/locking/lockdep.c:6127
rcu_do_batch kernel/rcu/tree.c:2112 [inline]
rcu_core+0xa4d/0x16f0 kernel/rcu/tree.c:2372
__do_softirq+0x2ab/0x908 kernel/softirq.c:571
run_ksoftirqd+0xc5/0x120 kernel/softirq.c:934
smpboot_thread_fn+0x533/0x9f0 kernel/smpboot.c:164
kthread+0x270/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308