INFO: task syz-executor.0:8618 blocked for more than 143 seconds. Not tainted 5.1.0-rc1+ #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.0 D28376 8618 8599 0x00000004 Call Trace: context_switch kernel/sched/core.c:2877 [inline] __schedule+0x904/0x1c20 kernel/sched/core.c:3518 schedule+0x7f/0x180 kernel/sched/core.c:3562 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3620 __mutex_lock_common kernel/locking/mutex.c:1002 [inline] __mutex_lock+0x806/0x1210 kernel/locking/mutex.c:1072 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087 snd_seq_kernel_client_ctl+0xd2/0x150 sound/core/seq/seq_clientmgr.c:2351 snd_seq_oss_control sound/core/seq/oss/seq_oss_device.h:157 [inline] snd_seq_oss_writeq_clear+0xdf/0x140 sound/core/seq/oss/seq_oss_writeq.c:85 snd_seq_oss_writeq_delete+0x12/0x20 sound/core/seq/oss/seq_oss_writeq.c:69 free_devinfo+0x5c/0xb0 sound/core/seq/oss/seq_oss_init.c:406 port_delete+0xd3/0x170 sound/core/seq/seq_ports.c:272 snd_seq_delete_port+0x27c/0x380 sound/core/seq/seq_ports.c:301 snd_seq_ioctl_delete_port+0xa0/0x170 sound/core/seq/seq_clientmgr.c:1321 snd_seq_kernel_client_ctl+0xfe/0x150 sound/core/seq/seq_clientmgr.c:2352 snd_seq_event_port_detach+0xa4/0xe0 sound/core/seq/seq_ports.c:702 delete_port+0x66/0xa0 sound/core/seq/oss/seq_oss_init.c:354 snd_seq_oss_release+0xda/0x110 sound/core/seq/oss/seq_oss_init.c:433 odev_release+0x49/0x70 sound/core/seq/oss/seq_oss.c:153 __fput+0x252/0x800 fs/file_table.c:278 ____fput+0x9/0x10 fs/file_table.c:309 task_work_run+0x10e/0x190 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:188 [inline] exit_to_usermode_loop+0x1a9/0x200 arch/x86/entry/common.c:166 prepare_exit_to_usermode arch/x86/entry/common.c:197 [inline] syscall_return_slowpath arch/x86/entry/common.c:268 [inline] do_syscall_64+0x40d/0x4e0 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4120b1 Code: 48 c7 44 24 08 0c 00 00 00 e8 db 8f 01 00 48 8b 44 24 28 48 89 04 24 e8 7d 8e 01 00 48 8d 05 2a 0e 23 00 48 89 04 24 48 c7 44 <24> 08 0c 00 00 00 e8 b4 8f 01 00 48 8b 44 24 30 48 89 04 24 e8 e6 RSP: 002b:00007ffc34bdaa10 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000004 RCX: 00000000004120b1 RDX: 0000001b2d020000 RSI: 00000000007400b0 RDI: 0000000000000003 RBP: 000000000073c900 R08: 0000000000010ebd R09: 0000000000010ebd R10: 00007ffc34bdaae0 R11: 0000000000000293 R12: ffffffffffffffff R13: 0000000000010ebe R14: 00000000000003e8 R15: 000000000073bf0c INFO: task syz-executor.1:8622 blocked for more than 143 seconds. Not tainted 5.1.0-rc1+ #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.1 D28560 8622 8597 0x00000004 Call Trace: context_switch kernel/sched/core.c:2877 [inline] __schedule+0x904/0x1c20 kernel/sched/core.c:3518 schedule+0x7f/0x180 kernel/sched/core.c:3562 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3620 __mutex_lock_common kernel/locking/mutex.c:1002 [inline] __mutex_lock+0x806/0x1210 kernel/locking/mutex.c:1072 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087 odev_open+0x59/0x80 sound/core/seq/oss/seq_oss.c:137 soundcore_open+0x3d0/0x5e0 sound/sound_core.c:597 chrdev_open+0x1f0/0x5c0 fs/char_dev.c:417 do_dentry_open+0x3e2/0xf40 fs/open.c:771 vfs_open+0x9a/0xc0 fs/open.c:880 do_last fs/namei.c:3416 [inline] path_openat+0xb52/0x3d10 fs/namei.c:3533 do_filp_open+0x177/0x250 fs/namei.c:3563 do_sys_open+0x1dd/0x370 fs/open.c:1063 __do_sys_openat fs/open.c:1090 [inline] __se_sys_openat fs/open.c:1084 [inline] __x64_sys_openat+0x98/0xf0 fs/open.c:1084 do_syscall_64+0xd6/0x4e0 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4582f9 Code: 83 c7 10 0f 10 06 48 83 c6 10 0f 11 07 48 83 c7 10 0f 10 06 48 83 c6 10 0f 11 07 48 83 c7 10 0f 10 06 48 83 c6 10 0f 11 07 48 <83> c7 10 0f 10 06 48 83 c6 10 0f 11 07 48 83 c7 10 0f 10 06 48 83 RSP: 002b:00007faf8f262c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00000000004582f9 RDX: 0000000000000001 RSI: 00000000200019c0 RDI: ffffffffffffff9c RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007faf8f2636d4 R13: 00000000004c46b4 R14: 00000000004d80e8 R15: 00000000ffffffff INFO: task syz-executor.1:8635 blocked for more than 144 seconds. Not tainted 5.1.0-rc1+ #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.1 D29544 8635 8597 0x00000004 Call Trace: context_switch kernel/sched/core.c:2877 [inline] __schedule+0x904/0x1c20 kernel/sched/core.c:3518 schedule+0x7f/0x180 kernel/sched/core.c:3562 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3620 __mutex_lock_common kernel/locking/mutex.c:1002 [inline] __mutex_lock+0x806/0x1210 kernel/locking/mutex.c:1072 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087 odev_open+0x59/0x80 sound/core/seq/oss/seq_oss.c:137 soundcore_open+0x3d0/0x5e0 sound/sound_core.c:597 chrdev_open+0x1f0/0x5c0 fs/char_dev.c:417 do_dentry_open+0x3e2/0xf40 fs/open.c:771 vfs_open+0x9a/0xc0 fs/open.c:880 do_last fs/namei.c:3416 [inline] path_openat+0xb52/0x3d10 fs/namei.c:3533 do_filp_open+0x177/0x250 fs/namei.c:3563 do_sys_open+0x1dd/0x370 fs/open.c:1063 __do_sys_openat fs/open.c:1090 [inline] __se_sys_openat fs/open.c:1084 [inline] __x64_sys_openat+0x98/0xf0 fs/open.c:1084 do_syscall_64+0xd6/0x4e0 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4582f9 Code: 83 c7 10 0f 10 06 48 83 c6 10 0f 11 07 48 83 c7 10 0f 10 06 48 83 c6 10 0f 11 07 48 83 c7 10 0f 10 06 48 83 c6 10 0f 11 07 48 <83> c7 10 0f 10 06 48 83 c6 10 0f 11 07 48 83 c7 10 0f 10 06 48 83 RSP: 002b:00007faf8f241c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00000000004582f9 RDX: 0000000000000001 RSI: 00000000200019c0 RDI: ffffffffffffff9c RBP: 000000000073bfa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007faf8f2426d4 R13: 00000000004c46b4 R14: 00000000004d80e8 R15: 00000000ffffffff INFO: task syz-executor.4:8625 blocked for more than 144 seconds. Not tainted 5.1.0-rc1+ #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.4 D29544 8625 8601 0x00000004 Call Trace: context_switch kernel/sched/core.c:2877 [inline] __schedule+0x904/0x1c20 kernel/sched/core.c:3518 schedule+0x7f/0x180 kernel/sched/core.c:3562 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3620 __mutex_lock_common kernel/locking/mutex.c:1002 [inline] __mutex_lock+0x806/0x1210 kernel/locking/mutex.c:1072 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087 odev_open+0x59/0x80 sound/core/seq/oss/seq_oss.c:137 soundcore_open+0x3d0/0x5e0 sound/sound_core.c:597 chrdev_open+0x1f0/0x5c0 fs/char_dev.c:417 do_dentry_open+0x3e2/0xf40 fs/open.c:771 vfs_open+0x9a/0xc0 fs/open.c:880 do_last fs/namei.c:3416 [inline] path_openat+0xb52/0x3d10 fs/namei.c:3533 do_filp_open+0x177/0x250 fs/namei.c:3563 do_sys_open+0x1dd/0x370 fs/open.c:1063 __do_sys_openat fs/open.c:1090 [inline] __se_sys_openat fs/open.c:1084 [inline] __x64_sys_openat+0x98/0xf0 fs/open.c:1084 do_syscall_64+0xd6/0x4e0 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4582f9 Code: 83 c7 10 0f 10 06 48 83 c6 10 0f 11 07 48 83 c7 10 0f 10 06 48 83 c6 10 0f 11 07 48 83 c7 10 0f 10 06 48 83 c6 10 0f 11 07 48 <83> c7 10 0f 10 06 48 83 c6 10 0f 11 07 48 83 c7 10 0f 10 06 48 83 RSP: 002b:00007f492e0a1c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00000000004582f9 RDX: 0000000000000001 RSI: 00000000200019c0 RDI: ffffffffffffff9c RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f492e0a26d4 R13: 00000000004c46b4 R14: 00000000004d80e8 R15: 00000000ffffffff INFO: task syz-executor.4:8636 blocked for more than 144 seconds. Not tainted 5.1.0-rc1+ #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.4 D29544 8636 8601 0x00000004 Call Trace: context_switch kernel/sched/core.c:2877 [inline] __schedule+0x904/0x1c20 kernel/sched/core.c:3518 schedule+0x7f/0x180 kernel/sched/core.c:3562 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3620 __mutex_lock_common kernel/locking/mutex.c:1002 [inline] __mutex_lock+0x806/0x1210 kernel/locking/mutex.c:1072 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087 odev_open+0x59/0x80 sound/core/seq/oss/seq_oss.c:137 soundcore_open+0x3d0/0x5e0 sound/sound_core.c:597 chrdev_open+0x1f0/0x5c0 fs/char_dev.c:417 do_dentry_open+0x3e2/0xf40 fs/open.c:771 vfs_open+0x9a/0xc0 fs/open.c:880 do_last fs/namei.c:3416 [inline] path_openat+0xb52/0x3d10 fs/namei.c:3533 do_filp_open+0x177/0x250 fs/namei.c:3563 do_sys_open+0x1dd/0x370 fs/open.c:1063 __do_sys_openat fs/open.c:1090 [inline] __se_sys_openat fs/open.c:1084 [inline] __x64_sys_openat+0x98/0xf0 fs/open.c:1084 do_syscall_64+0xd6/0x4e0 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4582f9 Code: Bad RIP value. RSP: 002b:00007f492e080c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00000000004582f9 RDX: 0000000000000001 RSI: 00000000200019c0 RDI: ffffffffffffff9c RBP: 000000000073bfa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f492e0816d4 R13: 00000000004c46b4 R14: 00000000004d80e8 R15: 00000000ffffffff INFO: task syz-executor.5:8628 blocked for more than 145 seconds. Not tainted 5.1.0-rc1+ #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.5 D29544 8628 8606 0x00000004 Call Trace: context_switch kernel/sched/core.c:2877 [inline] __schedule+0x904/0x1c20 kernel/sched/core.c:3518 schedule+0x7f/0x180 kernel/sched/core.c:3562 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3620 __mutex_lock_common kernel/locking/mutex.c:1002 [inline] __mutex_lock+0x806/0x1210 kernel/locking/mutex.c:1072 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087 odev_open+0x59/0x80 sound/core/seq/oss/seq_oss.c:137 soundcore_open+0x3d0/0x5e0 sound/sound_core.c:597 chrdev_open+0x1f0/0x5c0 fs/char_dev.c:417 do_dentry_open+0x3e2/0xf40 fs/open.c:771 vfs_open+0x9a/0xc0 fs/open.c:880 do_last fs/namei.c:3416 [inline] path_openat+0xb52/0x3d10 fs/namei.c:3533 do_filp_open+0x177/0x250 fs/namei.c:3563 do_sys_open+0x1dd/0x370 fs/open.c:1063 __do_sys_openat fs/open.c:1090 [inline] __se_sys_openat fs/open.c:1084 [inline] __x64_sys_openat+0x98/0xf0 fs/open.c:1084 do_syscall_64+0xd6/0x4e0 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4582f9 Code: Bad RIP value. RSP: 002b:00007f14b3317c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00000000004582f9 RDX: 0000000000000001 RSI: 00000000200019c0 RDI: ffffffffffffff9c RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f14b33186d4 R13: 00000000004c46b4 R14: 00000000004d80e8 R15: 00000000ffffffff INFO: task syz-executor.5:8637 blocked for more than 145 seconds. Not tainted 5.1.0-rc1+ #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.5 D29544 8637 8606 0x00000004 Call Trace: context_switch kernel/sched/core.c:2877 [inline] __schedule+0x904/0x1c20 kernel/sched/core.c:3518 schedule+0x7f/0x180 kernel/sched/core.c:3562 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3620 __mutex_lock_common kernel/locking/mutex.c:1002 [inline] __mutex_lock+0x806/0x1210 kernel/locking/mutex.c:1072 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087 odev_open+0x59/0x80 sound/core/seq/oss/seq_oss.c:137 soundcore_open+0x3d0/0x5e0 sound/sound_core.c:597 chrdev_open+0x1f0/0x5c0 fs/char_dev.c:417 do_dentry_open+0x3e2/0xf40 fs/open.c:771 vfs_open+0x9a/0xc0 fs/open.c:880 do_last fs/namei.c:3416 [inline] path_openat+0xb52/0x3d10 fs/namei.c:3533 do_filp_open+0x177/0x250 fs/namei.c:3563 do_sys_open+0x1dd/0x370 fs/open.c:1063 __do_sys_openat fs/open.c:1090 [inline] __se_sys_openat fs/open.c:1084 [inline] __x64_sys_openat+0x98/0xf0 fs/open.c:1084 do_syscall_64+0xd6/0x4e0 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4582f9 Code: Bad RIP value. RSP: 002b:00007f14b32f6c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00000000004582f9 RDX: 0000000000000001 RSI: 00000000200019c0 RDI: ffffffffffffff9c RBP: 000000000073bfa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f14b32f76d4 R13: 00000000004c46b4 R14: 00000000004d80e8 R15: 00000000ffffffff INFO: task syz-executor.2:8631 blocked for more than 145 seconds. Not tainted 5.1.0-rc1+ #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.2 D29544 8631 8603 0x00000004 Call Trace: context_switch kernel/sched/core.c:2877 [inline] __schedule+0x904/0x1c20 kernel/sched/core.c:3518 schedule+0x7f/0x180 kernel/sched/core.c:3562 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3620 __mutex_lock_common kernel/locking/mutex.c:1002 [inline] __mutex_lock+0x806/0x1210 kernel/locking/mutex.c:1072 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087 odev_open+0x59/0x80 sound/core/seq/oss/seq_oss.c:137 soundcore_open+0x3d0/0x5e0 sound/sound_core.c:597 chrdev_open+0x1f0/0x5c0 fs/char_dev.c:417 do_dentry_open+0x3e2/0xf40 fs/open.c:771 vfs_open+0x9a/0xc0 fs/open.c:880 do_last fs/namei.c:3416 [inline] path_openat+0xb52/0x3d10 fs/namei.c:3533 do_filp_open+0x177/0x250 fs/namei.c:3563 do_sys_open+0x1dd/0x370 fs/open.c:1063 __do_sys_openat fs/open.c:1090 [inline] __se_sys_openat fs/open.c:1084 [inline] __x64_sys_openat+0x98/0xf0 fs/open.c:1084 do_syscall_64+0xd6/0x4e0 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4582f9 Code: Bad RIP value. RSP: 002b:00007f0fd2218c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00000000004582f9 RDX: 0000000000000001 RSI: 00000000200019c0 RDI: ffffffffffffff9c RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f0fd22196d4 R13: 00000000004c46b4 R14: 00000000004d80e8 R15: 00000000ffffffff INFO: task syz-executor.2:8638 blocked for more than 146 seconds. Not tainted 5.1.0-rc1+ #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.2 D29544 8638 8603 0x00000004 Call Trace: context_switch kernel/sched/core.c:2877 [inline] __schedule+0x904/0x1c20 kernel/sched/core.c:3518 schedule+0x7f/0x180 kernel/sched/core.c:3562 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3620 __mutex_lock_common kernel/locking/mutex.c:1002 [inline] __mutex_lock+0x806/0x1210 kernel/locking/mutex.c:1072 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087 odev_open+0x59/0x80 sound/core/seq/oss/seq_oss.c:137 soundcore_open+0x3d0/0x5e0 sound/sound_core.c:597 chrdev_open+0x1f0/0x5c0 fs/char_dev.c:417 do_dentry_open+0x3e2/0xf40 fs/open.c:771 vfs_open+0x9a/0xc0 fs/open.c:880 do_last fs/namei.c:3416 [inline] path_openat+0xb52/0x3d10 fs/namei.c:3533 do_filp_open+0x177/0x250 fs/namei.c:3563 do_sys_open+0x1dd/0x370 fs/open.c:1063 __do_sys_openat fs/open.c:1090 [inline] __se_sys_openat fs/open.c:1084 [inline] __x64_sys_openat+0x98/0xf0 fs/open.c:1084 do_syscall_64+0xd6/0x4e0 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4582f9 Code: Bad RIP value. RSP: 002b:00007f0fd21f7c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00000000004582f9 RDX: 0000000000000001 RSI: 00000000200019c0 RDI: ffffffffffffff9c RBP: 000000000073bfa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f0fd21f86d4 R13: 00000000004c46b4 R14: 00000000004d80e8 R15: 00000000ffffffff INFO: task syz-executor.3:8634 blocked for more than 146 seconds. Not tainted 5.1.0-rc1+ #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.3 D28520 8634 8605 0x00000004 Call Trace: context_switch kernel/sched/core.c:2877 [inline] __schedule+0x904/0x1c20 kernel/sched/core.c:3518 schedule+0x7f/0x180 kernel/sched/core.c:3562 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3620 __mutex_lock_common kernel/locking/mutex.c:1002 [inline] __mutex_lock+0x806/0x1210 kernel/locking/mutex.c:1072 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087 odev_open+0x59/0x80 sound/core/seq/oss/seq_oss.c:137 soundcore_open+0x3d0/0x5e0 sound/sound_core.c:597 chrdev_open+0x1f0/0x5c0 fs/char_dev.c:417 do_dentry_open+0x3e2/0xf40 fs/open.c:771 vfs_open+0x9a/0xc0 fs/open.c:880 do_last fs/namei.c:3416 [inline] path_openat+0xb52/0x3d10 fs/namei.c:3533 do_filp_open+0x177/0x250 fs/namei.c:3563 do_sys_open+0x1dd/0x370 fs/open.c:1063 __do_sys_openat fs/open.c:1090 [inline] __se_sys_openat fs/open.c:1084 [inline] __x64_sys_openat+0x98/0xf0 fs/open.c:1084 do_syscall_64+0xd6/0x4e0 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4582f9 Code: Bad RIP value. RSP: 002b:00007ff76c907c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00000000004582f9 RDX: 0000000000000001 RSI: 00000000200019c0 RDI: ffffffffffffff9c RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007ff76c9086d4 R13: 00000000004c46b4 R14: 00000000004d80e8 R15: 00000000ffffffff INFO: lockdep is turned off. NMI backtrace for cpu 0 CPU: 0 PID: 1039 Comm: khungtaskd Not tainted 5.1.0-rc1+ #1 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x113/0x167 lib/dump_stack.c:113 nmi_cpu_backtrace.cold.4+0x3e/0x76 lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0x121/0x15b lib/nmi_backtrace.c:62 arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:204 [inline] watchdog+0x592/0xb20 kernel/hung_task.c:288 kthread+0x327/0x3f0 kernel/kthread.c:253 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352 Sending NMI from CPU 0 to CPUs 1: