INFO: task udevd:2839 blocked for more than 143 seconds.
Not tainted 6.15.0-rc6-syzkaller-00105-gab6dc9a6c721 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd state:D
stack:24536 pid:2839 tgid:2839 ppid:1 task_flags:0x400140 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0x132a/0x3b00 kernel/sched/core.c:6767
__schedule_loop kernel/sched/core.c:6845 [inline]
schedule+0xe7/0x3a0 kernel/sched/core.c:6860
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6917
rwsem_down_read_slowpath+0x62f/0xb60 kernel/locking/rwsem.c:1084
__down_read_common kernel/locking/rwsem.c:1248 [inline]
__down_read kernel/locking/rwsem.c:1261 [inline]
down_read+0xef/0x480 kernel/locking/rwsem.c:1526
kernfs_dop_revalidate+0xa5/0x740 fs/kernfs/dir.c:1178
d_revalidate fs/namei.c:929 [inline]
d_revalidate fs/namei.c:925 [inline]
lookup_fast+0x263/0x610 fs/namei.c:1778
walk_component+0x5b/0x5b0 fs/namei.c:2134
link_path_walk.part.0.constprop.0+0x685/0xd60 fs/namei.c:2503
link_path_walk fs/namei.c:2435 [inline]
path_openat+0x227/0x2d40 fs/namei.c:4035
do_filp_open+0x20b/0x470 fs/namei.c:4066
do_sys_openat2+0x11b/0x1d0 fs/open.c:1429
do_sys_open fs/open.c:1444 [inline]
__do_sys_openat fs/open.c:1460 [inline]
__se_sys_openat fs/open.c:1455 [inline]
__x64_sys_openat+0x174/0x210 fs/open.c:1455
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xcd/0x260 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f98b0625407
RSP: 002b:00007ffe97777820 EFLAGS: 00000202
ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f98b0537880 RCX: 00007f98b0625407
RDX: 0000000000080000 RSI: 00007ffe977779a0 RDI: ffffffffffffff9c
RBP: 0000000000000008 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 000056542a4e57f5
R13: 000056542a4e57f5 R14: 0000000000000001 R15: 0000000000000000
INFO: task syz-executor:10278 blocked for more than 144 seconds.
Not tainted 6.15.0-rc6-syzkaller-00105-gab6dc9a6c721 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor state:D stack:24456 pid:10278 tgid:10278 ppid:1 task_flags:0x400140 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0x132a/0x3b00 kernel/sched/core.c:6767
__schedule_loop kernel/sched/core.c:6845 [inline]
schedule+0xe7/0x3a0 kernel/sched/core.c:6860
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6917
__mutex_lock_common kernel/locking/mutex.c:678 [inline]
__mutex_lock+0x6c7/0xb90 kernel/locking/mutex.c:746
rtnl_net_lock include/linux/rtnetlink.h:130 [inline]
inet6_rtm_newaddr+0x4e4/0x19e0 net/ipv6/addrconf.c:5031
rtnetlink_rcv_msg+0x95b/0xe90 net/core/rtnetlink.c:6955
netlink_rcv_skb+0x16a/0x440 net/netlink/af_netlink.c:2534
netlink_unicast_kernel net/netlink/af_netlink.c:1313 [inline]
netlink_unicast+0x53a/0x7f0 net/netlink/af_netlink.c:1339
netlink_sendmsg+0x8d1/0xdd0 net/netlink/af_netlink.c:1883
sock_sendmsg_nosec net/socket.c:712 [inline]
__sock_sendmsg net/socket.c:727 [inline]
__sys_sendto+0x495/0x510 net/socket.c:2180
__do_sys_sendto net/socket.c:2187 [inline]
__se_sys_sendto net/socket.c:2183 [inline]
__x64_sys_sendto+0xe0/0x1c0 net/socket.c:2183
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xcd/0x260 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f1c236307a3
RSP: 002b:00007ffc4fc804c8 EFLAGS: 00000202
ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007f1c24384620 RCX: 00007f1c236307a3
RDX: 0000000000000040 RSI: 00007f1c24384670 RDI: 0000000000000003
RBP: 0000000000000001 R08: 00007ffc4fc804e4 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000003
R13: 0000000000000000 R14: 00007f1c24384670 R15: 0000000000000000
Showing all locks held in the system:
4 locks held by kworker/0:1/10:
1 lock held by khungtaskd/30:
#0:
ffffffff890c2840
(
rcu_read_lock
){....}-{1:3}
, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
, at: rcu_read_lock include/linux/rcupdate.h:841 [inline]
, at: debug_show_all_locks+0x36/0x1c0 kernel/locking/lockdep.c:6764
1 lock held by udevd/2839:
#0:
ffff888100ac4948
(
&root->kernfs_rwsem
){++++}-{4:4}
, at: kernfs_dop_revalidate+0xa5/0x740 fs/kernfs/dir.c:1178
2 locks held by getty/2903:
#0:
ffff888114e400a0
(
&tty->ldisc_sem
){++++}-{0:0}
, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243
#1:
ffffc900000432f0
(&ldata->atomic_read_lock
){+.+.}-{4:4}
, at: n_tty_read+0x41b/0x14f0 drivers/tty/n_tty.c:2222
6 locks held by kworker/0:2/5210:
1 lock held by udevd/5212:
#0: ffff888100ac4948
(
&root->kernfs_rwsem
){++++}-{4:4}
, at: kernfs_dop_revalidate+0xa5/0x740 fs/kernfs/dir.c:1178
1 lock held by udevd/5214:
#0:
ffff888100ac4948
(
&root->kernfs_rwsem
){++++}-{4:4}
, at: kernfs_dop_revalidate+0xa5/0x740 fs/kernfs/dir.c:1178
1 lock held by udevd/5236:
#0:
ffff888100ac4948
(
&root->kernfs_rwsem){++++}-{4:4}
, at: kernfs_dop_revalidate+0xa5/0x740 fs/kernfs/dir.c:1178
1 lock held by udevd/5249:
#0:
ffff888100ac4948
(&root->kernfs_rwsem
){++++}-{4:4}
, at: kernfs_dop_revalidate+0xa5/0x740 fs/kernfs/dir.c:1178
1 lock held by udevd/5255:
#0: ffff888100ac4948
(
&root->kernfs_rwsem){++++}-{4:4}
, at: kernfs_dop_revalidate+0xa5/0x740 fs/kernfs/dir.c:1178
4 locks held by udevd/5260:
#0:
ffff888119119e80
(
&p->lock
){+.+.}-{4:4}
, at: seq_read_iter+0xe1/0x12c0 fs/seq_file.c:182
#1:
ffff888114c3f088
(&of->mutex
#2
){+.+.}-{4:4}
, at: kernfs_seq_start+0x4d/0x240 fs/kernfs/file.c:154
#2:
ffff888119510a58
(kn->active
#9
){++++}-{0:0}
, at: kernfs_seq_start+0x71/0x240 fs/kernfs/file.c:155
#3:
ffff888132e22198
(
&dev->mutex){....}-{4:4}
, at: device_lock_interruptible include/linux/device.h:927 [inline]
, at: manufacturer_show+0x26/0xa0 drivers/usb/core/sysfs.c:142
6 locks held by kworker/0:6/5368:
#0:
ffff8881066b7d48
(
(wq_completion)usb_hub_wq
){+.+.}-{0:0}
, at: process_one_work+0x12a2/0x1b70 kernel/workqueue.c:3213
#1:
ffffc90011a2fd18
((work_completion)(&hub->events)
){+.+.}-{0:0}
, at: process_one_work+0x929/0x1b70 kernel/workqueue.c:3214
#2:
ffff88810af8a198
(
&dev->mutex
){....}-{4:4}
, at: device_lock include/linux/device.h:922 [inline]
, at: hub_event+0x1be/0x5030 drivers/usb/core/hub.c:5863
#3: ffff88811a945198
(
&dev->mutex
){....}-{4:4}
, at: device_lock include/linux/device.h:922 [inline]
, at: __device_attach+0x7e/0x4b0 drivers/base/dd.c:1004
#4:
ffff88811a940160
(
&dev->mutex
){....}-{4:4}
, at: device_lock include/linux/device.h:922 [inline]
, at: __device_attach+0x7e/0x4b0 drivers/base/dd.c:1004
#5:
ffff888100ac4948
(
&root->kernfs_rwsem
){++++}-{4:4}
, at: kernfs_remove_by_name_ns+0x3d/0x110 fs/kernfs/dir.c:1709
4 locks held by udevd/5396:
#0:
ffff88811e3abd58
(
&p->lock){+.+.}-{4:4}
, at: seq_read_iter+0xe1/0x12c0 fs/seq_file.c:182
#1:
ffff888114c3e888
(
&of->mutex
#2
){+.+.}-{4:4}
, at: kernfs_seq_start+0x4d/0x240 fs/kernfs/file.c:154
#2:
ffff888103f36d28
(
kn->active
#9){++++}-{0:0}
, at: kernfs_seq_start+0x71/0x240 fs/kernfs/file.c:155
#3: ffff888132e23198
(
&dev->mutex
){....}-{4:4}
, at: device_lock_interruptible include/linux/device.h:927 [inline]
, at: manufacturer_show+0x26/0xa0 drivers/usb/core/sysfs.c:142
1 lock held by udevd/7128:
#0:
ffff888100ac4948
(
&root->kernfs_rwsem){++++}-{4:4}
, at: kernfs_dop_revalidate+0xa5/0x740 fs/kernfs/dir.c:1178
5 locks held by kworker/0:3/8276:
2 locks held by kworker/u8:0/8286:
#0: ffff888100089148
(
(wq_completion)events_unbound
){+.+.}-{0:0}
, at: process_one_work+0x12a2/0x1b70 kernel/workqueue.c:3213
#1:
ffffc90012eb7d18
((work_completion)(&sub_info->work)
){+.+.}-{0:0}
, at: process_one_work+0x929/0x1b70 kernel/workqueue.c:3214
4 locks held by udevd/8877:
#0: ffff88811f61a8b8
(
&p->lock){+.+.}-{4:4}
, at: seq_read_iter+0xe1/0x12c0 fs/seq_file.c:182
#1:
ffff88810c7d1088
(
&of->mutex
#2){+.+.}-{4:4}
, at: kernfs_seq_start+0x4d/0x240 fs/kernfs/file.c:154
#2:
ffff8881138692d8
(
kn->active
#9
){++++}-{0:0}
, at: kernfs_seq_start+0x71/0x240 fs/kernfs/file.c:155
#3:
ffff88811a945198
(&dev->mutex
){....}-{4:4}
, at: device_lock_interruptible include/linux/device.h:927 [inline]
, at: manufacturer_show+0x26/0xa0 drivers/usb/core/sysfs.c:142
2 locks held by kworker/u8:3/9162:
#0:
ffff888100089148
((wq_completion)events_unbound
){+.+.}-{0:0}
, at: process_one_work+0x12a2/0x1b70 kernel/workqueue.c:3213
#1:
ffffc900019efd18
((work_completion)(&sub_info->work)
){+.+.}-{0:0}
, at: process_one_work+0x929/0x1b70 kernel/workqueue.c:3214
2 locks held by kworker/u8:6/9837:
#0: ffff888100089148
(
(wq_completion)events_unbound
){+.+.}-{0:0}
, at: process_one_work+0x12a2/0x1b70 kernel/workqueue.c:3213
#1:
ffffc900016e7d18
(
(work_completion)(&sub_info->work)
){+.+.}-{0:0}
, at: process_one_work+0x929/0x1b70 kernel/workqueue.c:3214
5 locks held by kworker/u8:7/10069:
#0: ffff888100ac3948
(
(wq_completion)netns
){+.+.}-{0:0}
, at: process_one_work+0x12a2/0x1b70 kernel/workqueue.c:3213
#1:
ffffc90001617d18
(net_cleanup_work
){+.+.}-{0:0}
, at: process_one_work+0x929/0x1b70 kernel/workqueue.c:3214
#2:
ffffffff8a3a1850
(
pernet_ops_rwsem
){++++}-{4:4}
, at: cleanup_net+0xc9/0xb30 net/core/net_namespace.c:608
#3:
ffffffff8a3b7628
(rtnl_mutex
){+.+.}-{4:4}
, at: cleanup_net+0x50d/0xb30 net/core/net_namespace.c:644
#4:
ffff888100ac4948
(
&root->kernfs_rwsem){++++}-{4:4}
, at: kernfs_remove_by_name_ns+0x3d/0x110 fs/kernfs/dir.c:1709
1 lock held by syz-executor/10195:
#0:
ffffffff8a3b7628
(rtnl_mutex
){+.+.}-{4:4}
, at: rtnl_net_lock include/linux/rtnetlink.h:130 [inline]
, at: inet_rtm_newaddr+0x30c/0x1540 net/ipv4/devinet.c:979
1 lock held by syz-executor/10278:
#0:
ffffffff8a3b7628
(
rtnl_mutex
){+.+.}-{4:4}
, at: rtnl_net_lock include/linux/rtnetlink.h:130 [inline]
, at: inet6_rtm_newaddr+0x4e4/0x19e0 net/ipv6/addrconf.c:5031
3 locks held by kworker/u8:8/10303:
#0:
ffff888112020148
(
(wq_completion)ipv6_addrconf
){+.+.}-{0:0}
, at: process_one_work+0x12a2/0x1b70 kernel/workqueue.c:3213
#1: ffffc90001477d18
((work_completion)(&(&net->ipv6.addr_chk_work)->work)
){+.+.}-{0:0}
, at: process_one_work+0x929/0x1b70 kernel/workqueue.c:3214
#2:
ffffffff8a3b7628
(rtnl_mutex
){+.+.}-{4:4}
, at: rtnl_net_lock include/linux/rtnetlink.h:130 [inline]
, at: addrconf_verify_work+0x12/0x30 net/ipv6/addrconf.c:4738
1 lock held by modprobe/10930:
1 lock held by modprobe/10931:
1 lock held by modprobe/10932:
1 lock held by syz-executor/10937:
#0: ffffffff8a3b7628
(rtnl_mutex
){+.+.}-{4:4}
, at: rtnl_net_lock include/linux/rtnetlink.h:130 [inline]
, at: inet_rtm_newaddr+0x30c/0x1540 net/ipv4/devinet.c:979
1 lock held by syz-executor/10941:
#0: ffffffff8a3b7628
(rtnl_mutex
){+.+.}-{4:4}
, at: rtnl_net_lock include/linux/rtnetlink.h:130 [inline]
, at: inet_rtm_newaddr+0x30c/0x1540 net/ipv4/devinet.c:979
1 lock held by syz-executor/10946:
#0:
ffffffff8a3b7628
(rtnl_mutex
){+.+.}-{4:4}
, at: rtnl_net_lock include/linux/rtnetlink.h:130 [inline]
, at: inet_rtm_newaddr+0x30c/0x1540 net/ipv4/devinet.c:979
1 lock held by syz-executor/10950:
#0:
ffffffff8a3b7628 (
rtnl_mutex){+.+.}-{4:4}
, at: rtnl_net_lock include/linux/rtnetlink.h:130 [inline]
, at: inet_rtm_newaddr+0x30c/0x1540 net/ipv4/devinet.c:979
1 lock held by syz-executor/10954:
#0:
ffffffff8a3b7628
(rtnl_mutex
){+.+.}-{4:4}
, at: rtnl_net_lock include/linux/rtnetlink.h:130 [inline]
, at: inet_rtm_newaddr+0x30c/0x1540 net/ipv4/devinet.c:979
1 lock held by syz-executor/10958:
#0: ffffffff8a3b7628
(rtnl_mutex
){+.+.}-{4:4}
, at: rtnl_net_lock include/linux/rtnetlink.h:130 [inline]
, at: inet_rtm_newaddr+0x30c/0x1540 net/ipv4/devinet.c:979
1 lock held by syz-executor/10962:
#0: ffffffff8a3b7628
(
rtnl_mutex
){+.+.}-{4:4}
, at: rtnl_net_lock include/linux/rtnetlink.h:130 [inline]
, at: inet_rtm_newaddr+0x30c/0x1540 net/ipv4/devinet.c:979
1 lock held by syz-executor/10966:
#0:
ffffffff8a3b7628
(
rtnl_mutex){+.+.}-{4:4}
, at: rtnl_net_lock include/linux/rtnetlink.h:130 [inline]
, at: inet_rtm_newaddr+0x30c/0x1540 net/ipv4/devinet.c:979
1 lock held by syz-executor/10970:
#0: ffffffff8a3b7628
(rtnl_mutex
){+.+.}-{4:4}
, at: rtnl_net_lock include/linux/rtnetlink.h:130 [inline]
, at: inet_rtm_newaddr+0x30c/0x1540 net/ipv4/devinet.c:979
1 lock held by syz-executor/10974:
#0: ffffffff8a3b7628
(rtnl_mutex
){+.+.}-{4:4}
, at: rtnl_net_lock include/linux/rtnetlink.h:130 [inline]
, at: inet_rtm_newaddr+0x30c/0x1540 net/ipv4/devinet.c:979
1 lock held by syz-executor/10978:
#0:
ffffffff8a3b7628
(rtnl_mutex
){+.+.}-{4:4}
, at: rtnl_net_lock include/linux/rtnetlink.h:130 [inline]
, at: inet_rtm_newaddr+0x30c/0x1540 net/ipv4/devinet.c:979
1 lock held by syz-executor/10982:
#0:
ffffffff8a3b7628
(rtnl_mutex
){+.+.}-{4:4}
, at: rtnl_net_lock include/linux/rtnetlink.h:130 [inline]
, at: inet_rtm_newaddr+0x30c/0x1540 net/ipv4/devinet.c:979
1 lock held by syz-executor/10986:
#0: ffffffff8a3b7628
(
rtnl_mutex
){+.+.}-{4:4}
, at: rtnl_net_lock include/linux/rtnetlink.h:130 [inline]
, at: inet_rtm_newaddr+0x30c/0x1540 net/ipv4/devinet.c:979
1 lock held by syz-executor/10990:
#0:
ffffffff8a3b7628
(rtnl_mutex
){+.+.}-{4:4}
, at: rtnl_net_lock include/linux/rtnetlink.h:130 [inline]
, at: inet_rtm_newaddr+0x30c/0x1540 net/ipv4/devinet.c:979
=============================================
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.15.0-rc6-syzkaller-00105-gab6dc9a6c721 #0 PREEMPT(voluntary)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
nmi_cpu_backtrace+0x27b/0x390 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x29c/0x300 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:158 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:274 [inline]
watchdog+0xf70/0x12c0 kernel/hung_task.c:437
kthread+0x3c2/0x780 kernel/kthread.c:464
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:153
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
Sending NMI from CPU 1 to CPUs 0:
imon 4-1:155.0: imon usb_rx_callback_intf0: status(-71): ignored
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 9 Comm: kworker/0:0 Not tainted 6.15.0-rc6-syzkaller-00105-gab6dc9a6c721 #0 PREEMPT(voluntary)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025
Workqueue: events drain_vmap_area_work
RIP: 0010:io_serial_in+0x87/0xb0 drivers/tty/serial/8250/8250_port.c:410
Code: c3 ad fe 48 8d 7d 40 44 89 e1 48 b8 00 00 00 00 00 fc ff df 48 89 fa d3 e3 48 c1 ea 03 80 3c 02 00 75 1a 66 03 5d 40 89 da ec <5b> 0f b6 c0 5d 41 5c c3 cc cc cc cc e8 28 88 09 ff eb a2 e8 b1 88
RSP: 0018:ffffc900000074a8 EFLAGS: 00000002
RAX: dffffc0000000060 RBX: 00000000000003fd RCX: 0000000000000000
RDX: 00000000000003fd RSI: ffffffff82cea820 RDI: ffffffff938c7800
RBP: ffffffff938c77c0 R08: 0000000000000001 R09: 000000000000001f
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000020 R14: fffffbfff2718f52 R15: dffffc0000000000
FS: 0000000000000000(0000) GS:ffff8882691c2000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000556d34d29b60 CR3: 0000000008ea4000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
serial_in drivers/tty/serial/8250/8250.h:137 [inline]
serial_lsr_in drivers/tty/serial/8250/8250.h:159 [inline]
wait_for_lsr+0x137/0x210 drivers/tty/serial/8250/8250_port.c:2098
fifo_wait_for_lsr drivers/tty/serial/8250/8250_port.c:3348 [inline]
serial8250_console_fifo_write drivers/tty/serial/8250/8250_port.c:3371 [inline]
serial8250_console_write+0xf83/0x1890 drivers/tty/serial/8250/8250_port.c:3456
console_emit_next_record kernel/printk/printk.c:3138 [inline]
console_flush_all+0x7fe/0xc60 kernel/printk/printk.c:3226
__console_flush_and_unlock kernel/printk/printk.c:3285 [inline]
console_unlock+0xd8/0x210 kernel/printk/printk.c:3325
vprintk_emit+0x418/0x6d0 kernel/printk/printk.c:2450
dev_vprintk_emit drivers/base/core.c:4917 [inline]
dev_printk_emit+0xfa/0x140 drivers/base/core.c:4928
__dev_printk+0xf5/0x270 drivers/base/core.c:4940
_dev_warn+0xe4/0x120 drivers/base/core.c:4984
usb_rx_callback_intf0+0x11c/0x1a0 drivers/media/rc/imon.c:1768
__usb_hcd_giveback_urb+0x38a/0x6e0 drivers/usb/core/hcd.c:1650
usb_hcd_giveback_urb+0x39b/0x450 drivers/usb/core/hcd.c:1734
dummy_timer+0x180e/0x3a20 drivers/usb/gadget/udc/dummy_hcd.c:1994
__run_hrtimer kernel/time/hrtimer.c:1761 [inline]
__hrtimer_run_queues+0x1ff/0xad0 kernel/time/hrtimer.c:1825
hrtimer_run_softirq+0x17d/0x350 kernel/time/hrtimer.c:1842
handle_softirqs+0x205/0x8d0 kernel/softirq.c:579
__do_softirq kernel/softirq.c:613 [inline]
invoke_softirq kernel/softirq.c:453 [inline]
__irq_exit_rcu+0xfa/0x160 kernel/softirq.c:680
irq_exit_rcu+0x9/0x30 kernel/softirq.c:696
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
sysvec_apic_timer_interrupt+0x90/0xb0 arch/x86/kernel/apic/apic.c:1049
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:lock_acquire+0x62/0x350 kernel/locking/lockdep.c:5870
Code: 52 0c 0b 83 f8 07 0f 87 bc 02 00 00 89 c0 48 0f a3 05 22 39 1f 09 0f 82 74 02 00 00 8b 35 da 44 1f 09 85 f6 0f 85 8d 00 00 00 <48> 8b 44 24 30 65 48 2b 05 79 52 0c 0b 0f 85 c7 02 00 00 48 83 c4
RSP: 0018:ffffc9000009f5f8 EFLAGS: 00000206
RAX: 0000000000000046 RBX: ffffffff890c2840 RCX: 00000000be20c710
RDX: 0000000000000000 RSI: ffffffff88ab8fa3 RDI: ffffffff876851e0
RBP: 0000000000000002 R08: 78cdaad94025992c R09: 0000000000000000
R10: 0000000000000004 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
rcu_read_lock include/linux/rcupdate.h:841 [inline]
class_rcu_constructor include/linux/rcupdate.h:1155 [inline]
unwind_next_frame+0xd1/0x20a0 arch/x86/kernel/unwind_orc.c:479
arch_stack_walk+0x94/0x100 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x8e/0xc0 kernel/stacktrace.c:122
save_stack+0x160/0x1f0 mm/page_owner.c:156
__reset_page_owner+0x84/0x1a0 mm/page_owner.c:308
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1262 [inline]
__free_frozen_pages+0x66c/0xe70 mm/page_alloc.c:2725
kasan_depopulate_vmalloc_pte+0x63/0x80 mm/kasan/shadow.c:408
apply_to_pte_range mm/memory.c:2941 [inline]
apply_to_pmd_range mm/memory.c:2985 [inline]
apply_to_pud_range mm/memory.c:3021 [inline]
apply_to_p4d_range mm/memory.c:3057 [inline]
__apply_to_page_range+0x617/0xd60 mm/memory.c:3093
kasan_release_vmalloc+0xd1/0xe0 mm/kasan/shadow.c:529
kasan_release_vmalloc_node mm/vmalloc.c:2196 [inline]
purge_vmap_node+0x1cb/0xa70 mm/vmalloc.c:2213
__purge_vmap_area_lazy+0x9d1/0xc90 mm/vmalloc.c:2304
drain_vmap_area_work+0x27/0x40 mm/vmalloc.c:2338
process_one_work+0x9cc/0x1b70 kernel/workqueue.c:3238
process_scheduled_works kernel/workqueue.c:3319 [inline]
worker_thread+0x6c8/0xf10 kernel/workqueue.c:3400
kthread+0x3c2/0x780 kernel/kthread.c:464
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:153
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245