INFO: task syz-executor:5831 blocked for more than 143 seconds.
Not tainted 6.14.0-syzkaller-07486-g15cb9a2b66fc #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor state:D stack:14416 pid:5831 tgid:5831 ppid:1 task_flags:0x400140 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0x1b33/0x51f0 kernel/sched/core.c:6767
__schedule_loop kernel/sched/core.c:6845 [inline]
schedule+0x163/0x360 kernel/sched/core.c:6860
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6917
__mutex_lock_common kernel/locking/mutex.c:664 [inline]
__mutex_lock+0x805/0x10c0 kernel/locking/mutex.c:732
lmLogClose+0xb2/0x530 fs/jfs/jfs_logmgr.c:1444
jfs_umount+0x2ce/0x3a0 fs/jfs/jfs_umount.c:114
jfs_put_super+0x8a/0x190 fs/jfs/super.c:194
generic_shutdown_super+0x139/0x2d0 fs/super.c:642
kill_block_super+0x44/0x90 fs/super.c:1710
deactivate_locked_super+0xc4/0x130 fs/super.c:473
cleanup_mnt+0x422/0x4c0 fs/namespace.c:1435
task_work_run+0x251/0x310 kernel/task_work.c:227
resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
exit_to_user_mode_loop kernel/entry/common.c:114 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0x13f/0x340 kernel/entry/common.c:218
do_syscall_64+0x100/0x230 arch/x86/entry/syscall_64.c:100
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fe3f878e497
RSP: 002b:00007ffe6bab0d08 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007fe3f880e08c RCX: 00007fe3f878e497
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe6bab0dc0
RBP: 00007ffe6bab0dc0 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffe6bab1e50
R13: 00007fe3f880e08c R14: 000000000001a33a R15: 00007ffe6bab1e90
INFO: task syz-executor:5834 blocked for more than 143 seconds.
Not tainted 6.14.0-syzkaller-07486-g15cb9a2b66fc #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor state:D stack:13920 pid:5834 tgid:5834 ppid:1 task_flags:0x400140 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0x1b33/0x51f0 kernel/sched/core.c:6767
__schedule_loop kernel/sched/core.c:6845 [inline]
schedule+0x163/0x360 kernel/sched/core.c:6860
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6917
__mutex_lock_common kernel/locking/mutex.c:664 [inline]
__mutex_lock+0x805/0x10c0 kernel/locking/mutex.c:732
lmLogClose+0xb2/0x530 fs/jfs/jfs_logmgr.c:1444
jfs_umount+0x2ce/0x3a0 fs/jfs/jfs_umount.c:114
jfs_put_super+0x8a/0x190 fs/jfs/super.c:194
generic_shutdown_super+0x139/0x2d0 fs/super.c:642
kill_block_super+0x44/0x90 fs/super.c:1710
deactivate_locked_super+0xc4/0x130 fs/super.c:473
cleanup_mnt+0x422/0x4c0 fs/namespace.c:1435
task_work_run+0x251/0x310 kernel/task_work.c:227
resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
exit_to_user_mode_loop kernel/entry/common.c:114 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0x13f/0x340 kernel/entry/common.c:218
do_syscall_64+0x100/0x230 arch/x86/entry/syscall_64.c:100
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f0864b8e497
RSP: 002b:00007ffece2ee098 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007f0864c0e08c RCX: 00007f0864b8e497
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffece2ee150
RBP: 00007ffece2ee150 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffece2ef1e0
R13: 00007f0864c0e08c R14: 000000000001adcb R15: 00007ffece2ef220
INFO: task syz-executor:6642 blocked for more than 144 seconds.
Not tainted 6.14.0-syzkaller-07486-g15cb9a2b66fc #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor state:D stack:14416 pid:6642 tgid:6642 ppid:1 task_flags:0x400140 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0x1b33/0x51f0 kernel/sched/core.c:6767
__schedule_loop kernel/sched/core.c:6845 [inline]
schedule+0x163/0x360 kernel/sched/core.c:6860
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6917
__mutex_lock_common kernel/locking/mutex.c:664 [inline]
__mutex_lock+0x805/0x10c0 kernel/locking/mutex.c:732
lmLogClose+0xb2/0x530 fs/jfs/jfs_logmgr.c:1444
jfs_umount+0x2ce/0x3a0 fs/jfs/jfs_umount.c:114
jfs_put_super+0x8a/0x190 fs/jfs/super.c:194
generic_shutdown_super+0x139/0x2d0 fs/super.c:642
kill_block_super+0x44/0x90 fs/super.c:1710
deactivate_locked_super+0xc4/0x130 fs/super.c:473
cleanup_mnt+0x422/0x4c0 fs/namespace.c:1435
task_work_run+0x251/0x310 kernel/task_work.c:227
resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
exit_to_user_mode_loop kernel/entry/common.c:114 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0x13f/0x340 kernel/entry/common.c:218
do_syscall_64+0x100/0x230 arch/x86/entry/syscall_64.c:100
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f316158e497
RSP: 002b:00007ffd5be6d6f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007f316160e08c RCX: 00007f316158e497
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd5be6d7b0
RBP: 00007ffd5be6d7b0 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffd5be6e840
R13: 00007f316160e08c R14: 0000000000028da2 R15: 00007ffd5be6e880
Showing all locks held in the system:
1 lock held by khungtaskd/31:
#0: ffffffff8ed3a2a0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
#0: ffffffff8ed3a2a0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:841 [inline]
#0: ffffffff8ed3a2a0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x30/0x180 kernel/locking/lockdep.c:6761
3 locks held by kworker/1:2/921:
#0: ffff88801b080d48 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3213 [inline]
#0: ffff88801b080d48 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x990/0x18e0 kernel/workqueue.c:3319
#1: ffffc90003817c60 (free_ipc_work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3214 [inline]
#1: ffffc90003817c60 (free_ipc_work){+.+.}-{0:0}, at: process_scheduled_works+0x9cb/0x18e0 kernel/workqueue.c:3319
#2: ffffffff8ed3f7b8 (rcu_state.exp_mutex){+.+.}-{4:4}, at: exp_funnel_lock kernel/rcu/tree_exp.h:304 [inline]
#2: ffffffff8ed3f7b8 (rcu_state.exp_mutex){+.+.}-{4:4}, at: synchronize_rcu_expedited+0x384/0x830 kernel/rcu/tree_exp.h:998
4 locks held by kworker/u8:5/1152:
#0: ffff88801bef3948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3213 [inline]
#0: ffff88801bef3948 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x990/0x18e0 kernel/workqueue.c:3319
#1: ffffc90003f8fc60 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3214 [inline]
#1: ffffc90003f8fc60 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x9cb/0x18e0 kernel/workqueue.c:3319
#2: ffffffff900c34d0 (pernet_ops_rwsem){++++}-{4:4}, at: cleanup_net+0x17c/0xd60 net/core/net_namespace.c:608
#3: ffffffff8ed3f680 (rcu_state.barrier_mutex){+.+.}-{4:4}, at: rcu_barrier+0x4c/0x530 kernel/rcu/tree.c:3774
3 locks held by kworker/u9:1/5139:
#0: ffff888028de9948 ((wq_completion)hci13){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3213 [inline]
#0: ffff888028de9948 ((wq_completion)hci13){+.+.}-{0:0}, at: process_scheduled_works+0x990/0x18e0 kernel/workqueue.c:3319
#1: ffffc9000faafc60 ((work_completion)(&hdev->cmd_sync_work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3214 [inline]
#1: ffffc9000faafc60 ((work_completion)(&hdev->cmd_sync_work)){+.+.}-{0:0}, at: process_scheduled_works+0x9cb/0x18e0 kernel/workqueue.c:3319
#2: ffff888082984d80 (&hdev->req_lock){+.+.}-{4:4}, at: hci_cmd_sync_work+0x1ec/0x400 net/bluetooth/hci_sync.c:331
2 locks held by getty/5582:
#0: ffff88803543a0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc9000334b2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x53d/0x16b0 drivers/tty/n_tty.c:2211
2 locks held by syz-executor/5831:
#0: ffff88802938c0e0 (&type->s_umount_key#68){++++}-{4:4}, at: __super_lock fs/super.c:56 [inline]
#0: ffff88802938c0e0 (&type->s_umount_key#68){++++}-{4:4}, at: __super_lock_excl fs/super.c:71 [inline]
#0: ffff88802938c0e0 (&type->s_umount_key#68){++++}-{4:4}, at: deactivate_super+0xb5/0xf0 fs/super.c:505
#1: ffffffff8f15dd88 (jfs_log_mutex){+.+.}-{4:4}, at: lmLogClose+0xb2/0x530 fs/jfs/jfs_logmgr.c:1444
2 locks held by syz-executor/5834:
#0: ffff8880572600e0 (&type->s_umount_key#68){++++}-{4:4}, at: __super_lock fs/super.c:56 [inline]
#0: ffff8880572600e0 (&type->s_umount_key#68){++++}-{4:4}, at: __super_lock_excl fs/super.c:71 [inline]
#0: ffff8880572600e0 (&type->s_umount_key#68){++++}-{4:4}, at: deactivate_super+0xb5/0xf0 fs/super.c:505
#1: ffffffff8f15dd88 (jfs_log_mutex){+.+.}-{4:4}, at: lmLogClose+0xb2/0x530 fs/jfs/jfs_logmgr.c:1444
2 locks held by syz-executor/6561:
#0: ffff8880541280e0 (&type->s_umount_key#68){++++}-{4:4}, at: __super_lock fs/super.c:56 [inline]
#0: ffff8880541280e0 (&type->s_umount_key#68){++++}-{4:4}, at: __super_lock_excl fs/super.c:71 [inline]
#0: ffff8880541280e0 (&type->s_umount_key#68){++++}-{4:4}, at: deactivate_super+0xb5/0xf0 fs/super.c:505
#1: ffffffff8f15dd88 (jfs_log_mutex){+.+.}-{4:4}, at: lmLogClose+0xb2/0x530 fs/jfs/jfs_logmgr.c:1444
2 locks held by syz-executor/6598:
#0: ffff8880353c00e0 (&type->s_umount_key#68){++++}-{4:4}, at: __super_lock fs/super.c:56 [inline]
#0: ffff8880353c00e0 (&type->s_umount_key#68){++++}-{4:4}, at: __super_lock_excl fs/super.c:71 [inline]
#0: ffff8880353c00e0 (&type->s_umount_key#68){++++}-{4:4}, at: deactivate_super+0xb5/0xf0 fs/super.c:505
#1: ffffffff8f15dd88 (jfs_log_mutex){+.+.}-{4:4}, at: lmLogClose+0xb2/0x530 fs/jfs/jfs_logmgr.c:1444
2 locks held by syz-executor/6642:
#0: ffff88805b9920e0 (&type->s_umount_key#68){++++}-{4:4}, at: __super_lock fs/super.c:56 [inline]
#0: ffff88805b9920e0 (&type->s_umount_key#68){++++}-{4:4}, at: __super_lock_excl fs/super.c:71 [inline]
#0: ffff88805b9920e0 (&type->s_umount_key#68){++++}-{4:4}, at: deactivate_super+0xb5/0xf0 fs/super.c:505
#1: ffffffff8f15dd88 (jfs_log_mutex){+.+.}-{4:4}, at: lmLogClose+0xb2/0x530 fs/jfs/jfs_logmgr.c:1444
2 locks held by syz-executor/6681:
#0: ffff88803741e0e0 (&type->s_umount_key#68){++++}-{4:4}, at: __super_lock fs/super.c:56 [inline]
#0: ffff88803741e0e0 (&type->s_umount_key#68){++++}-{4:4}, at: __super_lock_excl fs/super.c:71 [inline]
#0: ffff88803741e0e0 (&type->s_umount_key#68){++++}-{4:4}, at: deactivate_super+0xb5/0xf0 fs/super.c:505
#1: ffffffff8f15dd88 (jfs_log_mutex){+.+.}-{4:4}, at: lmLogClose+0xb2/0x530 fs/jfs/jfs_logmgr.c:1444
2 locks held by syz-executor/6724:
#0: ffff8880570020e0 (&type->s_umount_key#68){++++}-{4:4}, at: __super_lock fs/super.c:56 [inline]
#0: ffff8880570020e0 (&type->s_umount_key#68){++++}-{4:4}, at: __super_lock_excl fs/super.c:71 [inline]
#0: ffff8880570020e0 (&type->s_umount_key#68){++++}-{4:4}, at: deactivate_super+0xb5/0xf0 fs/super.c:505
#1: ffffffff8f15dd88 (jfs_log_mutex){+.+.}-{4:4}, at: lmLogClose+0xb2/0x530 fs/jfs/jfs_logmgr.c:1444
2 locks held by syz-executor/7254:
#0: ffff8880278280e0 (&type->s_umount_key#68){++++}-{4:4}, at: __super_lock fs/super.c:56 [inline]
#0: ffff8880278280e0 (&type->s_umount_key#68){++++}-{4:4}, at: __super_lock_excl fs/super.c:71 [inline]
#0: ffff8880278280e0 (&type->s_umount_key#68){++++}-{4:4}, at: deactivate_super+0xb5/0xf0 fs/super.c:505
#1: ffffffff8f15dd88 (jfs_log_mutex){+.+.}-{4:4}, at: lmLogClose+0xb2/0x530 fs/jfs/jfs_logmgr.c:1444
1 lock held by syz.5.478/8045:
#0: ffff8880541280e0 (&type->s_umount_key#68){++++}-{4:4}, at: __super_lock fs/super.c:56 [inline]
#0: ffff8880541280e0 (&type->s_umount_key#68){++++}-{4:4}, at: super_lock+0x19b/0x400 fs/super.c:120
1 lock held by syz.3.491/8092:
#0: ffff88802938c0e0 (&type->s_umount_key#68){++++}-{4:4}, at: __super_lock fs/super.c:56 [inline]
#0: ffff88802938c0e0 (&type->s_umount_key#68){++++}-{4:4}, at: super_lock+0x19b/0x400 fs/super.c:120
1 lock held by syz.6.498/8108:
#0: ffff8880353c00e0 (&type->s_umount_key#68){++++}-{4:4}, at: __super_lock fs/super.c:58 [inline]
#0: ffff8880353c00e0 (&type->s_umount_key#68){++++}-{4:4}, at: super_lock+0x27c/0x400 fs/super.c:120
1 lock held by syz.2.529/8188:
#0: ffffffff8ed3f7b8 (rcu_state.exp_mutex){+.+.}-{4:4}, at: exp_funnel_lock kernel/rcu/tree_exp.h:336 [inline]
#0: ffffffff8ed3f7b8 (rcu_state.exp_mutex){+.+.}-{4:4}, at: synchronize_rcu_expedited+0x454/0x830 kernel/rcu/tree_exp.h:998
2 locks held by syz-executor/8255:
#0: ffff888044d660e0 (&type->s_umount_key#68){++++}-{4:4}, at: __super_lock fs/super.c:56 [inline]
#0: ffff888044d660e0 (&type->s_umount_key#68){++++}-{4:4}, at: __super_lock_excl fs/super.c:71 [inline]
#0: ffff888044d660e0 (&type->s_umount_key#68){++++}-{4:4}, at: deactivate_super+0xb5/0xf0 fs/super.c:505
#1: ffffffff8f15dd88 (jfs_log_mutex){+.+.}-{4:4}, at: lmLogClose+0xb2/0x530 fs/jfs/jfs_logmgr.c:1444
1 lock held by syz.4.611/8465:
#0: ffff88802938c0e0 (&type->s_umount_key#68){++++}-{4:4}, at: __super_lock fs/super.c:58 [inline]
#0: ffff88802938c0e0 (&type->s_umount_key#68){++++}-{4:4}, at: super_lock+0x27c/0x400 fs/super.c:120
1 lock held by syz.7.630/8504:
#0: ffff88805b9920e0 (&type->s_umount_key#68){++++}-{4:4}, at: __super_lock fs/super.c:58 [inline]
#0: ffff88805b9920e0 (&type->s_umount_key#68){++++}-{4:4}, at: super_lock+0x27c/0x400 fs/super.c:120
7 locks held by syz-executor/8692:
#0: ffff888035644420 (sb_writers#7){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:3041 [inline]
#0: ffff888035644420 (sb_writers#7){.+.+}-{0:0}, at: vfs_write+0x23f/0xd10 fs/read_write.c:680
#1: ffff888096313088 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x1ef/0x510 fs/kernfs/file.c:325
#2: ffff8881443c8008 (kn->active#49){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x213/0x510 fs/kernfs/file.c:326
#3: ffffffff8f977f08 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xfe/0x490 drivers/net/netdevsim/bus.c:216
#4: ffff88808fa4e0e8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:922 [inline]
#4: ffff88808fa4e0e8 (&dev->mutex){....}-{4:4}, at: __device_driver_lock drivers/base/dd.c:1095 [inline]
#4: ffff88808fa4e0e8 (&dev->mutex){....}-{4:4}, at: device_release_driver_internal+0xce/0x7c0 drivers/base/dd.c:1293
#5: ffff88808fa4f250 (&devlink->lock_key#17){+.+.}-{4:4}, at: nsim_drv_remove+0x50/0x160 drivers/net/netdevsim/dev.c:1675
#6: ffffffff8ed3f680 (rcu_state.barrier_mutex){+.+.}-{4:4}, at: rcu_barrier+0x4c/0x530 kernel/rcu/tree.c:3774
=============================================
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 31 Comm: khungtaskd Not tainted 6.14.0-syzkaller-07486-g15cb9a2b66fc #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
nmi_cpu_backtrace+0x4ab/0x4e0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x198/0x320 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:158 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:236 [inline]
watchdog+0x1058/0x10a0 kernel/hung_task.c:399
kthread+0x7b7/0x940 kernel/kthread.c:464
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:153
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 8188 Comm: syz.2.529 Not tainted 6.14.0-syzkaller-07486-g15cb9a2b66fc #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:deref_stack_reg arch/x86/kernel/unwind_orc.c:406 [inline]
RIP: 0010:unwind_next_frame+0xcc1/0x22f0 arch/x86/kernel/unwind_orc.c:585
Code: 0c 00 00 4c 39 f0 0f 87 7d 0c 00 00 4c 89 ef e8 e5 22 00 00 49 89 c6 48 bd 00 00 00 00 00 fc ff df 48 8b 44 24 30 80 3c 28 00 <48> 8b 5c 24 18 74 08 48 89 df e8 00 2b bb 00 4c 89 33 48 8b 44 24
RSP: 0018:ffffc9000b0ef430 EFLAGS: 00000246
RAX: 1ffff9200161dea9 RBX: ffffc9000b0ef510 RCX: 1ffff9200161dea0
RDX: ffffffff90f42a98 RSI: 0000000000000002 RDI: ffffc9000b0ef7c0
RBP: dffffc0000000000 R08: 0000000000000001 R09: ffffc9000b0ef5f0
R10: ffffc9000b0ef550 R11: ffffffff81aefc60 R12: ffffc9000b0f0000
R13: ffffc9000b0ef7c0 R14: ffffffff8232d909 R15: 1ffff9200161dea2
FS: 0000000000000000(0000) GS:ffff888125125000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fffc8c20fd8 CR3: 000000003294c000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
arch_stack_walk+0x11e/0x150 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x11a/0x1d0 kernel/stacktrace.c:122
save_stack+0xfc/0x1f0 mm/page_owner.c:156
__reset_page_owner+0x79/0x440 mm/page_owner.c:297
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1127 [inline]
free_frozen_pages+0xe0d/0x10e0 mm/page_alloc.c:2660
vfree+0x1c3/0x360 mm/vmalloc.c:3383
kcov_put kernel/kcov.c:439 [inline]
kcov_close+0x28/0x50 kernel/kcov.c:535
__fput+0x3e9/0x9f0 fs/file_table.c:465
task_work_run+0x251/0x310 kernel/task_work.c:227
exit_task_work include/linux/task_work.h:40 [inline]
do_exit+0xa11/0x2950 kernel/exit.c:954
do_group_exit+0x207/0x2c0 kernel/exit.c:1103
get_signal+0x1696/0x1730 kernel/signal.c:3035
arch_do_signal_or_restart+0x98/0x840 arch/x86/kernel/signal.c:337
exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0xce/0x340 kernel/entry/common.c:218
do_syscall_64+0x100/0x230 arch/x86/entry/syscall_64.c:100
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f647358d169
Code: Unable to access opcode bytes at 0x7f647358d13f.
RSP: 002b:00007f647437f038 EFLAGS: 00000246 ORIG_RAX: 00000000000000b3
RAX: ffffffffffffffed RBX: 00007f64737a5fa0 RCX: 00007f647358d169
RDX: 0000000000000000 RSI: 0000200000000000 RDI: ffffffff80000900
RBP: 00007f647360e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f64737a5fa0 R15: 00007ffef33d7e88