INFO: task hung in blk_trace

Title	Replies (including bot)	Last reply
[syzbot] Monthly trace report (Feb 2026)	0 (1)	2026/02/23 08:39
[syzbot] Monthly trace report (Jan 2026)	0 (1)	2026/01/22 21:23
[syzbot] Monthly trace report (Dec 2025)	0 (1)	2025/12/22 13:07
[syzbot] Monthly trace report (Nov 2025)	0 (1)	2025/11/21 12:34
[syzbot] Monthly trace report (Oct 2025)	0 (1)	2025/10/21 08:02
[syzbot] Monthly trace report (Sep 2025)	0 (1)	2025/09/20 05:04
[syzbot] Monthly trace report (Aug 2025)	0 (1)	2025/08/20 08:11
[syzbot] Monthly trace report (Jul 2025)	0 (1)	2025/07/20 09:04
[syzbot] Monthly trace report (Jun 2025)	0 (1)	2025/06/18 13:02
[syzbot] Monthly trace report (May 2025)	0 (1)	2025/05/19 10:23
[syzbot] Monthly trace report (Apr 2025)	0 (1)	2025/04/17 08:38
[syzbot] Monthly trace report (Mar 2025)	0 (1)	2025/03/16 22:21
[syzbot] Monthly trace report (Feb 2025)	0 (1)	2025/02/13 12:34
[syzbot] Monthly block report (Nov 2024)	0 (1)	2024/11/18 10:38
[syzbot] Monthly trace report (Oct 2024)	4 (5)	2024/10/15 14:05
[syzbot] [block?] [trace?] INFO: task hung in blk_trace_ioctl (4)	7 (13)	2024/10/14 07:58
[syzbot] Monthly trace report (Sep 2024)	2 (3)	2024/09/10 00:22
[syzbot] Monthly trace report (Aug 2024)	0 (1)	2024/08/06 20:42
[syzbot] Monthly trace report (May 2024)	3 (4)	2024/06/02 21:06
[syzbot] Monthly trace report (Apr 2024)	0 (1)	2024/04/30 07:11
[syzbot] Monthly block report (Apr 2024)	0 (1)	2024/04/12 13:18
[syzbot] Monthly trace report (Feb 2024)	0 (1)	2024/02/27 09:32
[syzbot] Monthly trace report (Jan 2024)	0 (1)	2024/01/26 21:55
[syzbot] Monthly trace report (Dec 2023)	0 (1)	2023/12/27 09:18
[PATCH next] trace/blktrace: fix task hung in blk_trace_ioctl	4 (4)	2023/12/03 11:45

Title

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Last reply

[syzbot] Monthly trace report (Feb 2026)

0 (1)

2026/02/23 08:39

[syzbot] Monthly trace report (Jan 2026)

0 (1)

2026/01/22 21:23

[syzbot] Monthly trace report (Dec 2025)

0 (1)

2025/12/22 13:07

[syzbot] Monthly trace report (Nov 2025)

0 (1)

2025/11/21 12:34

[syzbot] Monthly trace report (Oct 2025)

0 (1)

2025/10/21 08:02

[syzbot] Monthly trace report (Sep 2025)

0 (1)

2025/09/20 05:04

[syzbot] Monthly trace report (Aug 2025)

0 (1)

2025/08/20 08:11

[syzbot] Monthly trace report (Jul 2025)

0 (1)

2025/07/20 09:04

[syzbot] Monthly trace report (Jun 2025)

0 (1)

2025/06/18 13:02

[syzbot] Monthly trace report (May 2025)

0 (1)

2025/05/19 10:23

[syzbot] Monthly trace report (Apr 2025)

0 (1)

2025/04/17 08:38

[syzbot] Monthly trace report (Mar 2025)

0 (1)

2025/03/16 22:21

[syzbot] Monthly trace report (Feb 2025)

0 (1)

2025/02/13 12:34

[syzbot] Monthly block report (Nov 2024)

0 (1)

2024/11/18 10:38

[syzbot] Monthly trace report (Oct 2024)

4 (5)

2024/10/15 14:05

[syzbot] [block?] [trace?] INFO: task hung in blk_trace_ioctl (4)

7 (13)

2024/10/14 07:58

[syzbot] Monthly trace report (Sep 2024)

2 (3)

2024/09/10 00:22

[syzbot] Monthly trace report (Aug 2024)

0 (1)

2024/08/06 20:42

[syzbot] Monthly trace report (May 2024)

3 (4)

2024/06/02 21:06

[syzbot] Monthly trace report (Apr 2024)

0 (1)

2024/04/30 07:11

[syzbot] Monthly block report (Apr 2024)

0 (1)

2024/04/12 13:18

[syzbot] Monthly trace report (Feb 2024)

0 (1)

2024/02/27 09:32

[syzbot] Monthly trace report (Jan 2024)

0 (1)

2024/01/26 21:55

[syzbot] Monthly trace report (Dec 2023)

0 (1)

2023/12/27 09:18

[PATCH next] trace/blktrace: fix task hung in blk_trace_ioctl

4 (4)

2023/12/03 11:45

Kernel	Title	Rank 🛈	Repro	Fix bisect	Count	Last	Reported	Patched	Status
linux-5.15	INFO: task hung in blk_trace_ioctl (2) origin:upstream	1	syz	error	1	101d	117d	0/3	upstream: reported syz repro on 2025/11/13 16:40
upstream	INFO: task hung in blk_trace_ioctl trace block	1			3	2652d	2731d	0/29	auto-closed as invalid on 2019/06/04 08:29
upstream	INFO: task hung in blk_trace_ioctl (2) block trace	1			4	2251d	2361d	0/29	auto-closed as invalid on 2020/04/09 23:38
upstream	INFO: task hung in blk_trace_ioctl (3) block trace	1			2	1562d	1627d	0/29	closed as invalid on 2022/02/07 19:19
linux-5.15	INFO: task hung in blk_trace_ioctl	1			1	220d	220d	0/3	auto-obsoleted due to no activity on 2025/11/10 20:19
linux-4.19	INFO: task hung in blk_trace_ioctl	1			1	1316d	1316d	0/1	auto-obsoleted due to no activity on 2022/12/01 07:14

Rank 🛈

linux-5.15

INFO: task hung in blk_trace_ioctl (2) origin:upstream

syz

error

101d

117d

0/3

upstream: reported syz repro on 2025/11/13 16:40

upstream

INFO: task hung in blk_trace_ioctl trace block

2652d

2731d

0/29

auto-closed as invalid on 2019/06/04 08:29

upstream

INFO: task hung in blk_trace_ioctl (2) block trace

2251d

2361d

0/29

auto-closed as invalid on 2020/04/09 23:38

upstream

INFO: task hung in blk_trace_ioctl (3) block trace

1562d

1627d

0/29

closed as invalid on 2022/02/07 19:19

linux-5.15

INFO: task hung in blk_trace_ioctl

220d

0/3

auto-obsoleted due to no activity on 2025/11/10 20:19

linux-4.19

INFO: task hung in blk_trace_ioctl

1316d

0/1

auto-obsoleted due to no activity on 2022/12/01 07:14


Created	Duration	User	Patch	Repo	Result
2026/02/16 12:09	25m	retest repro		upstream	error
2026/02/16 12:09	31m	retest repro		upstream	report log
2026/02/02 11:12	23m	retest repro		upstream	report log
2026/02/02 11:01	22m	retest repro		upstream	report log
2025/12/28 15:23	32m	retest repro		linux-next	report log
2025/10/27 18:27	1h32m	retest repro		upstream	report log
2025/09/12 14:18	25m	retest repro		upstream	report log
2025/08/27 04:14	23m	retest repro		upstream	report log
2025/08/04 03:21	22m	retest repro		upstream	report log
2025/08/04 02:51	21m	retest repro		linux-next	error
2024/10/11 19:32	22m	nogikh@google.com		git://git.kernel.dk/linux btrace-fault	report log
2023/12/02 02:54	1h37m	eadavis@qq.com	patch	https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git 8c9660f65153	OK log
2023/12/02 02:44	50m	eadavis@qq.com	patch	https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git 8c9660f65153	report log
2023/12/02 02:14	17m	eadavis@qq.com	patch	https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git 8c9660f65153	report log
2023/12/02 01:25	21m	eadavis@qq.com	patch	https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git 8c9660f65153	report log

Created	Duration	User	Patch	Repo	Result
2025/01/25 02:08	2h59m	bisect fix		upstream	OK (0) job log log
2024/12/25 07:02	2h57m	bisect fix		upstream	OK (0) job log log

Created

Duration

User

Patch

Repo

Result

2025/01/25 02:08

2h59m

bisect fix

upstream

OK (0) job log log

2024/12/25 07:02

2h57m

bisect fix

upstream

OK (0) job log log

INFO: task syz.1.18:6074 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.1.18 state:D stack:28664 pid:6074 tgid:6072 ppid:5935 task_flags:0x400040 flags:0x00080002 Call Trace: <TASK> context_switch kernel/sched/core.c:5295 [inline] __schedule+0x15dd/0x52d0 kernel/sched/core.c:6908 __schedule_loop kernel/sched/core.c:6990 [inline] schedule+0x164/0x360 kernel/sched/core.c:7005 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7062 __mutex_lock_common kernel/locking/mutex.c:692 [inline] __mutex_lock+0x7fe/0x1300 kernel/locking/mutex.c:776 blk_debugfs_lock_nomemsave block/blk.h:740 [inline] blk_trace_remove kernel/trace/blktrace.c:562 [inline] blk_trace_ioctl+0x39a/0x920 kernel/trace/blktrace.c:953 blkdev_common_ioctl+0x13a7/0x3250 block/ioctl.c:724 blkdev_ioctl+0x528/0x740 block/ioctl.c:798 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:597 [inline] __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f28f359c799 RSP: 002b:00007f28f44a4028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f28f3816090 RCX: 00007f28f359c799 RDX: 0000000000000000 RSI: 0000000000001276 RDI: 0000000000000003 RBP: 00007f28f3632bd9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f28f3816128 R14: 00007f28f3816090 R15: 00007ffc099cc388 </TASK> INFO: task syz.2.19:6077 blocked for more than 144 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.2.19 state:D stack:28160 pid:6077 tgid:6076 ppid:5942 task_flags:0x480040 flags:0x00080002 Call Trace: <TASK> context_switch kernel/sched/core.c:5295 [inline] __schedule+0x15dd/0x52d0 kernel/sched/core.c:6908 __schedule_loop kernel/sched/core.c:6990 [inline] schedule+0x164/0x360 kernel/sched/core.c:7005 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7062 __mutex_lock_common kernel/locking/mutex.c:692 [inline] __mutex_lock+0x7fe/0x1300 kernel/locking/mutex.c:776 blk_debugfs_lock_nomemsave block/blk.h:740 [inline] blk_debugfs_lock block/blk.h:752 [inline] blk_trace_setup+0x2d3/0x520 kernel/trace/blktrace.c:789 blk_trace_ioctl+0x37f/0x920 kernel/trace/blktrace.c:938 blkdev_ioctl+0x4c1/0x740 block/ioctl.c:793 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:597 [inline] __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f9ee679c799 RSP: 002b:00007f9ee7637028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f9ee6a15fa0 RCX: 00007f9ee679c799 RDX: 0000200000000000 RSI: 00000000c0481273 RDI: 0000000000000003 RBP: 00007f9ee6832bd9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f9ee6a16038 R14: 00007f9ee6a15fa0 R15: 00007ffc1e84cbc8 </TASK> INFO: task syz.2.19:6078 blocked for more than 145 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.2.19 state:D stack:28664 pid:6078 tgid:6076 ppid:5942 task_flags:0x400040 flags:0x00080002 Call Trace: <TASK> context_switch kernel/sched/core.c:5295 [inline] __schedule+0x15dd/0x52d0 kernel/sched/core.c:6908 __schedule_loop kernel/sched/core.c:6990 [inline] schedule+0x164/0x360 kernel/sched/core.c:7005 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7062 __mutex_lock_common kernel/locking/mutex.c:692 [inline] __mutex_lock+0x7fe/0x1300 kernel/locking/mutex.c:776 blk_debugfs_lock_nomemsave block/blk.h:740 [inline] blk_trace_remove kernel/trace/blktrace.c:562 [inline] blk_trace_ioctl+0x39a/0x920 kernel/trace/blktrace.c:953 blkdev_common_ioctl+0x13a7/0x3250 block/ioctl.c:724 blkdev_ioctl+0x528/0x740 block/ioctl.c:798 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:597 [inline] __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f9ee679c799 RSP: 002b:00007f9ee7616028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f9ee6a16090 RCX: 00007f9ee679c799 RDX: 0000000000000000 RSI: 0000000000001276 RDI: 0000000000000003 RBP: 00007f9ee6832bd9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f9ee6a16128 R14: 00007f9ee6a16090 R15: 00007ffc1e84cbc8 </TASK> INFO: task syz.3.20:6084 blocked for more than 146 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.3.20 state:D stack:27328 pid:6084 tgid:6081 ppid:5945 task_flags:0x480040 flags:0x00080002 Call Trace: <TASK> context_switch kernel/sched/core.c:5295 [inline] __schedule+0x15dd/0x52d0 kernel/sched/core.c:6908 __schedule_loop kernel/sched/core.c:6990 [inline] schedule+0x164/0x360 kernel/sched/core.c:7005 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7062 __mutex_lock_common kernel/locking/mutex.c:692 [inline] __mutex_lock+0x7fe/0x1300 kernel/locking/mutex.c:776 blk_debugfs_lock_nomemsave block/blk.h:740 [inline] blk_debugfs_lock block/blk.h:752 [inline] blk_trace_setup+0x2d3/0x520 kernel/trace/blktrace.c:789 blk_trace_ioctl+0x37f/0x920 kernel/trace/blktrace.c:938 blkdev_ioctl+0x4c1/0x740 block/ioctl.c:793 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:597 [inline] __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fbd87d9c799 RSP: 002b:00007fbd88c60028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fbd88015fa0 RCX: 00007fbd87d9c799 RDX: 0000200000000000 RSI: 00000000c0481273 RDI: 0000000000000003 RBP: 00007fbd87e32bd9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fbd88016038 R14: 00007fbd88015fa0 R15: 00007ffe40da2a48 </TASK> INFO: task syz.3.20:6086 blocked for more than 146 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.3.20 state:D stack:28664 pid:6086 tgid:6081 ppid:5945 task_flags:0x400040 flags:0x00080002 Call Trace: <TASK> context_switch kernel/sched/core.c:5295 [inline] __schedule+0x15dd/0x52d0 kernel/sched/core.c:6908 __schedule_loop kernel/sched/core.c:6990 [inline] schedule+0x164/0x360 kernel/sched/core.c:7005 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7062 __mutex_lock_common kernel/locking/mutex.c:692 [inline] __mutex_lock+0x7fe/0x1300 kernel/locking/mutex.c:776 blk_debugfs_lock_nomemsave block/blk.h:740 [inline] blk_trace_remove kernel/trace/blktrace.c:562 [inline] blk_trace_ioctl+0x39a/0x920 kernel/trace/blktrace.c:953 blkdev_common_ioctl+0x13a7/0x3250 block/ioctl.c:724 blkdev_ioctl+0x528/0x740 block/ioctl.c:798 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:597 [inline] __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fbd87d9c799 RSP: 002b:00007fbd88c3f028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fbd88016090 RCX: 00007fbd87d9c799 RDX: 0000000000000000 RSI: 0000000000001276 RDI: 0000000000000003 RBP: 00007fbd87e32bd9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fbd88016128 R14: 00007fbd88016090 R15: 00007ffe40da2a48 </TASK> INFO: task syz.4.21:6083 blocked for more than 147 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.4.21 state:D stack:28160 pid:6083 tgid:6082 ppid:5946 task_flags:0x480040 flags:0x00080002 Call Trace: <TASK> context_switch kernel/sched/core.c:5295 [inline] __schedule+0x15dd/0x52d0 kernel/sched/core.c:6908 __schedule_loop kernel/sched/core.c:6990 [inline] schedule+0x164/0x360 kernel/sched/core.c:7005 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7062 __mutex_lock_common kernel/locking/mutex.c:692 [inline] __mutex_lock+0x7fe/0x1300 kernel/locking/mutex.c:776 blk_debugfs_lock_nomemsave block/blk.h:740 [inline] blk_debugfs_lock block/blk.h:752 [inline] blk_trace_setup+0x2d3/0x520 kernel/trace/blktrace.c:789 blk_trace_ioctl+0x37f/0x920 kernel/trace/blktrace.c:938 blkdev_ioctl+0x4c1/0x740 block/ioctl.c:793 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:597 [inline] __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f495579c799 RSP: 002b:00007f49566b3028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f4955a15fa0 RCX: 00007f495579c799 RDX: 0000200000000000 RSI: 00000000c0481273 RDI: 0000000000000003 RBP: 00007f4955832bd9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f4955a16038 R14: 00007f4955a15fa0 R15: 00007fff0f16b148 </TASK> INFO: task syz.4.21:6085 blocked for more than 148 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.4.21 state:D stack:28664 pid:6085 tgid:6082 ppid:5946 task_flags:0x400040 flags:0x00080002 Call Trace: <TASK> context_switch kernel/sched/core.c:5295 [inline] __schedule+0x15dd/0x52d0 kernel/sched/core.c:6908 __schedule_loop kernel/sched/core.c:6990 [inline] schedule+0x164/0x360 kernel/sched/core.c:7005 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7062 __mutex_lock_common kernel/locking/mutex.c:692 [inline] __mutex_lock+0x7fe/0x1300 kernel/locking/mutex.c:776 blk_debugfs_lock_nomemsave block/blk.h:740 [inline] blk_trace_remove kernel/trace/blktrace.c:562 [inline] blk_trace_ioctl+0x39a/0x920 kernel/trace/blktrace.c:953 blkdev_common_ioctl+0x13a7/0x3250 block/ioctl.c:724 blkdev_ioctl+0x528/0x740 block/ioctl.c:798 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:597 [inline] __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f495579c799 RSP: 002b:00007f4956692028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f4955a16090 RCX: 00007f495579c799 RDX: 0000000000000000 RSI: 0000000000001276 RDI: 0000000000000003 RBP: 00007f4955832bd9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f4955a16128 R14: 00007f4955a16090 R15: 00007fff0f16b148 </TASK> Showing all locks held in the system: 3 locks held by kworker/u8:1/13: 1 lock held by khungtaskd/30: #0: ffffffff8e7602e0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:312 [inline] #0: ffffffff8e7602e0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:850 [inline] #0: ffffffff8e7602e0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180 kernel/locking/lockdep.c:6775 2 locks held by kswapd0/85: 2 locks held by getty/5581: #0: ffff8880367430a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243 #1: ffffc9000332b2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x45c/0x13c0 drivers/tty/n_tty.c:2211 2 locks held by syz.1.18/6073: 1 lock held by syz.1.18/6074: #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_debugfs_lock_nomemsave block/blk.h:740 [inline] #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_trace_remove kernel/trace/blktrace.c:562 [inline] #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_trace_ioctl+0x39a/0x920 kernel/trace/blktrace.c:953 1 lock held by syz.2.19/6077: #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_debugfs_lock_nomemsave block/blk.h:740 [inline] #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_debugfs_lock block/blk.h:752 [inline] #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_trace_setup+0x2d3/0x520 kernel/trace/blktrace.c:789 1 lock held by syz.2.19/6078: #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_debugfs_lock_nomemsave block/blk.h:740 [inline] #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_trace_remove kernel/trace/blktrace.c:562 [inline] #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_trace_ioctl+0x39a/0x920 kernel/trace/blktrace.c:953 1 lock held by syz.3.20/6084: #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_debugfs_lock_nomemsave block/blk.h:740 [inline] #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_debugfs_lock block/blk.h:752 [inline] #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_trace_setup+0x2d3/0x520 kernel/trace/blktrace.c:789 1 lock held by syz.3.20/6086: #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_debugfs_lock_nomemsave block/blk.h:740 [inline] #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_trace_remove kernel/trace/blktrace.c:562 [inline] #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_trace_ioctl+0x39a/0x920 kernel/trace/blktrace.c:953 1 lock held by syz.4.21/6083: #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_debugfs_lock_nomemsave block/blk.h:740 [inline] #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_debugfs_lock block/blk.h:752 [inline] #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_trace_setup+0x2d3/0x520 kernel/trace/blktrace.c:789 1 lock held by syz.4.21/6085: #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_debugfs_lock_nomemsave block/blk.h:740 [inline] #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_trace_remove kernel/trace/blktrace.c:562 [inline] #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_trace_ioctl+0x39a/0x920 kernel/trace/blktrace.c:953 1 lock held by syz.5.22/6205: #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_debugfs_lock_nomemsave block/blk.h:740 [inline] #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_debugfs_lock block/blk.h:752 [inline] #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_trace_setup+0x2d3/0x520 kernel/trace/blktrace.c:789 1 lock held by syz.5.22/6208: #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_debugfs_lock_nomemsave block/blk.h:740 [inline] #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_trace_remove kernel/trace/blktrace.c:562 [inline] #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_trace_ioctl+0x39a/0x920 kernel/trace/blktrace.c:953 1 lock held by syz.6.23/6234: #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_debugfs_lock_nomemsave block/blk.h:740 [inline] #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_debugfs_lock block/blk.h:752 [inline] #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_trace_setup+0x2d3/0x520 kernel/trace/blktrace.c:789 1 lock held by syz.6.23/6235: #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_debugfs_lock_nomemsave block/blk.h:740 [inline] #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_trace_remove kernel/trace/blktrace.c:562 [inline] #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_trace_ioctl+0x39a/0x920 kernel/trace/blktrace.c:953 1 lock held by syz.8.25/6239: #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_debugfs_lock_nomemsave block/blk.h:740 [inline] #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_debugfs_lock block/blk.h:752 [inline] #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_trace_setup+0x2d3/0x520 kernel/trace/blktrace.c:789 1 lock held by syz.8.25/6240: #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_debugfs_lock_nomemsave block/blk.h:740 [inline] #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_trace_remove kernel/trace/blktrace.c:562 [inline] #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_trace_ioctl+0x39a/0x920 kernel/trace/blktrace.c:953 1 lock held by syz.9.26/6243: #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_debugfs_lock_nomemsave block/blk.h:740 [inline] #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_debugfs_lock block/blk.h:752 [inline] #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_trace_setup+0x2d3/0x520 kernel/trace/blktrace.c:789 1 lock held by syz.9.26/6244: #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_debugfs_lock_nomemsave block/blk.h:740 [inline] #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_trace_remove kernel/trace/blktrace.c:562 [inline] #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_trace_ioctl+0x39a/0x920 kernel/trace/blktrace.c:953 1 lock held by syz.7.24/6247: #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_debugfs_lock_nomemsave block/blk.h:740 [inline] #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_debugfs_lock block/blk.h:752 [inline] #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_trace_setup+0x2d3/0x520 kernel/trace/blktrace.c:789 1 lock held by syz.7.24/6248: #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_debugfs_lock_nomemsave block/blk.h:740 [inline] #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_trace_remove kernel/trace/blktrace.c:562 [inline] #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_trace_ioctl+0x39a/0x920 kernel/trace/blktrace.c:953 1 lock held by syz.1.28/6362: #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_debugfs_lock_nomemsave block/blk.h:740 [inline] #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_debugfs_lock block/blk.h:752 [inline] #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_trace_setup+0x2d3/0x520 kernel/trace/blktrace.c:789 1 lock held by syz.1.28/6364: #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_debugfs_lock_nomemsave block/blk.h:740 [inline] #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_trace_remove kernel/trace/blktrace.c:562 [inline] #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_trace_ioctl+0x39a/0x920 kernel/trace/blktrace.c:953 1 lock held by syz.0.27/6367: #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_debugfs_lock_nomemsave block/blk.h:740 [inline] #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_debugfs_lock block/blk.h:752 [inline] #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_trace_setup+0x2d3/0x520 kernel/trace/blktrace.c:789 1 lock held by syz.0.27/6368: #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_debugfs_lock_nomemsave block/blk.h:740 [inline] #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_trace_remove kernel/trace/blktrace.c:562 [inline] #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_trace_ioctl+0x39a/0x920 kernel/trace/blktrace.c:953 1 lock held by syz.3.30/6371: #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_debugfs_lock_nomemsave block/blk.h:740 [inline] #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_debugfs_lock block/blk.h:752 [inline] #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_trace_setup+0x2d3/0x520 kernel/trace/blktrace.c:789 1 lock held by syz.3.30/6372: #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_debugfs_lock_nomemsave block/blk.h:740 [inline] #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_trace_remove kernel/trace/blktrace.c:562 [inline] #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_trace_ioctl+0x39a/0x920 kernel/trace/blktrace.c:953 1 lock held by syz.2.29/6375: #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_debugfs_lock_nomemsave block/blk.h:740 [inline] #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_debugfs_lock block/blk.h:752 [inline] #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_trace_setup+0x2d3/0x520 kernel/trace/blktrace.c:789 1 lock held by syz.2.29/6376: #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_debugfs_lock_nomemsave block/blk.h:740 [inline] #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_trace_remove kernel/trace/blktrace.c:562 [inline] #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_trace_ioctl+0x39a/0x920 kernel/trace/blktrace.c:953 1 lock held by syz.4.31/6379: #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_debugfs_lock_nomemsave block/blk.h:740 [inline] #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_debugfs_lock block/blk.h:752 [inline] #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_trace_setup+0x2d3/0x520 kernel/trace/blktrace.c:789 1 lock held by syz.4.31/6380: #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_debugfs_lock_nomemsave block/blk.h:740 [inline] #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_trace_remove kernel/trace/blktrace.c:562 [inline] #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_trace_ioctl+0x39a/0x920 kernel/trace/blktrace.c:953 1 lock held by syz.5.32/6496: #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_debugfs_lock_nomemsave block/blk.h:740 [inline] #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_debugfs_lock block/blk.h:752 [inline] #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_trace_setup+0x2d3/0x520 kernel/trace/blktrace.c:789 1 lock held by syz.5.32/6500: #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_debugfs_lock_nomemsave block/blk.h:740 [inline] #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_trace_remove kernel/trace/blktrace.c:562 [inline] #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_trace_ioctl+0x39a/0x920 kernel/trace/blktrace.c:953 1 lock held by syz.6.33/6517: #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_debugfs_lock_nomemsave block/blk.h:740 [inline] #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_debugfs_lock block/blk.h:752 [inline] #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_trace_setup+0x2d3/0x520 kernel/trace/blktrace.c:789 1 lock held by syz.6.33/6520: #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_debugfs_lock_nomemsave block/blk.h:740 [inline] #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_trace_remove kernel/trace/blktrace.c:562 [inline] #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_trace_ioctl+0x39a/0x920 kernel/trace/blktrace.c:953 1 lock held by syz.8.35/6525: #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_debugfs_lock_nomemsave block/blk.h:740 [inline] #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_debugfs_lock block/blk.h:752 [inline] #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_trace_setup+0x2d3/0x520 kernel/trace/blktrace.c:789 1 lock held by syz.8.35/6526: #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_debugfs_lock_nomemsave block/blk.h:740 [inline] #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_trace_remove kernel/trace/blktrace.c:562 [inline] #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_trace_ioctl+0x39a/0x920 kernel/trace/blktrace.c:953 1 lock held by syz.9.36/6529: #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_debugfs_lock_nomemsave block/blk.h:740 [inline] #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_debugfs_lock block/blk.h:752 [inline] #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_trace_setup+0x2d3/0x520 kernel/trace/blktrace.c:789 1 lock held by syz.9.36/6530: #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_debugfs_lock_nomemsave block/blk.h:740 [inline] #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_trace_remove kernel/trace/blktrace.c:562 [inline] #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_trace_ioctl+0x39a/0x920 kernel/trace/blktrace.c:953 1 lock held by syz.7.34/6533: #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_debugfs_lock_nomemsave block/blk.h:740 [inline] #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_debugfs_lock block/blk.h:752 [inline] #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_trace_setup+0x2d3/0x520 kernel/trace/blktrace.c:789 1 lock held by syz.7.34/6534: #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_debugfs_lock_nomemsave block/blk.h:740 [inline] #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_trace_remove kernel/trace/blktrace.c:562 [inline] #0: ffff888025ec1bf0 (&q->debugfs_mutex){+.+.}-{4:4}, at: blk_trace_ioctl+0x39a/0x920 kernel/trace/blktrace.c:953 9 locks held by syz-executor/6542: #0: ffff888035796420 (sb_writers#7){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2710 [inline] #0: ffff888035796420 (sb_writers#7){.+.+}-{0:0}, at: vfs_write+0x227/0xb90 fs/read_write.c:684 #1: ffff88814d56a088 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x1de/0x540 fs/kernfs/file.c:343 #2: ffff88802873a008 (kn->active#58){.+.+}-{0:0}, at: kernfs_get_active_of fs/kernfs/file.c:80 [inline] #2: ffff88802873a008 (kn->active#58){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x231/0x540 fs/kernfs/file.c:344 #3: ffffffff8f441ac8 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xd7/0x370 drivers/net/netdevsim/bus.c:234 #4: ffff8880258cc0e8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:895 [inline] #4: ffff8880258cc0e8 (&dev->mutex){....}-{4:4}, at: __device_driver_lock drivers/base/dd.c:1106 [inline] #4: ffff8880258cc0e8 (&dev->mutex){....}-{4:4}, at: device_release_driver_internal+0xb6/0x860 drivers/base/dd.c:1304 #5: ffff88801eae9250 (&devlink->lock_key#13){+.+.}-{4:4}, at: nsim_drv_remove+0x50/0x170 drivers/net/netdevsim/dev.c:1778 #6: ffffffff8fbcd088 (rtnl_mutex){+.+.}-{4:4}, at: nsim_destroy+0xed/0x680 drivers/net/netdevsim/netdev.c:1177 #7: ffff888064d90d40 (&dev_instance_lock_key#24){+.+.}-{4:4}, at: netdev_lock include/linux/netdevice.h:2784 [inline] #7: ffff888064d90d40 (&dev_instance_lock_key#24){+.+.}-{4:4}, at: unregister_netdevice_many_notify+0x583/0x2370 net/core/dev.c:12372 #8: ffffffff8e766578 (rcu_state.exp_mutex){+.+.}-{4:4}, at: exp_funnel_lock kernel/rcu/tree_exp.h:311 [inline] #8: ffffffff8e766578 (rcu_state.exp_mutex){+.+.}-{4:4}, at: synchronize_rcu_expedited+0x2d0/0x770 kernel/rcu/tree_exp.h:961 2 locks held by syz-executor/6551: #0: ffffffff9011ca68 (&ops->srcu#2){.+.+}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:312 [inline] #0: ffffffff9011ca68 (&ops->srcu#2){.+.+}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:850 [inline] #0: ffffffff9011ca68 (&ops->srcu#2){.+.+}-{0:0}, at: rtnl_link_ops_get+0x23/0x250 net/core/rtnetlink.c:570 #1: ffffffff8fbcd088 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:80 [inline] #1: ffffffff8fbcd088 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_nets_lock net/core/rtnetlink.c:341 [inline] #1: ffffffff8fbcd088 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x8a1/0x1be0 net/core/rtnetlink.c:4071 1 lock held by syz-executor/6556: #0: ffffffff8fbcd088 (rtnl_mutex){+.+.}-{4:4}, at: __tun_chr_ioctl+0x3bc/0x1e10 drivers/net/tun.c:3078 2 locks held by syz-executor/6560: #0: ffffffff8fbbe870 (pernet_ops_rwsem){++++}-{4:4}, at: copy_net_ns+0x4f7/0x730 net/core/net_namespace.c:577 #1: ffffffff8fbcd088 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_net_lock include/linux/rtnetlink.h:130 [inline] #1: ffffffff8fbcd088 (rtnl_mutex){+.+.}-{4:4}, at: register_netdevice_notifier_net+0x1a/0xa0 net/core/dev.c:2102 1 lock held by syz-executor/6563: #0: ffffffff8fbcd088 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:80 [inline] #0: ffffffff8fbcd088 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_nets_lock net/core/rtnetlink.c:341 [inline] #0: ffffffff8fbcd088 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x8a1/0x1be0 net/core/rtnetlink.c:4071 ============================================= NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 Call Trace: <TASK> dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 nmi_cpu_backtrace+0x274/0x2d0 lib/nmi_backtrace.c:113 nmi_trigger_cpumask_backtrace+0x17a/0x300 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:161 [inline] __sys_info lib/sys_info.c:157 [inline] sys_info+0x135/0x170 lib/sys_info.c:165 check_hung_uninterruptible_tasks kernel/hung_task.c:346 [inline] watchdog+0xfd9/0x1030 kernel/hung_task.c:515 kthread+0x388/0x470 kernel/kthread.c:467 ret_from_fork+0x51e/0xb90 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 </TASK> Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 RIP: 0010:pv_native_safe_halt+0xf/0x20 arch/x86/kernel/paravirt.c:63 Code: 4e 6d 02 c3 cc cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d c3 f0 1b 00 fb f4 <e9> fc e9 02 00 cc cc cc cc cc cc cc cc cc cc cc cc 90 90 90 90 90 RSP: 0018:ffffffff8e407dc0 EFLAGS: 00000246 RAX: 0000000000198c71 RBX: ffffffff819a886d RCX: 0000000080000001 RDX: 0000000000000001 RSI: ffffffff8def3152 RDI: ffffffff8c27ae80 RBP: ffffffff8e407eb0 R08: ffff8880b863395b R09: 1ffff110170c672b R10: dffffc0000000000 R11: ffffed10170c672c R12: ffffffff90118cb0 R13: 1ffffffff1c929d8 R14: 0000000000000000 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff888125464000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f6ac780a358 CR3: 00000001f48ca000 CR4: 00000000003526f0 Call Trace: <TASK> arch_safe_halt arch/x86/kernel/process.c:766 [inline] default_idle+0x9/0x20 arch/x86/kernel/process.c:767 default_idle_call+0x72/0xb0 kernel/sched/idle.c:122 cpuidle_idle_call kernel/sched/idle.c:191 [inline] do_idle+0x1bd/0x500 kernel/sched/idle.c:332 cpu_startup_entry+0x43/0x60 kernel/sched/idle.c:430 rest_init+0x2de/0x300 init/main.c:760 start_kernel+0x385/0x3d0 init/main.c:1210 x86_64_start_reservations+0x24/0x30 arch/x86/kernel/head64.c:310 x86_64_start_kernel+0x143/0x1c0 arch/x86/kernel/head64.c:291 common_startup_64+0x13e/0x147 </TASK>

Crashes (74):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Assets (help?)	Manager	Title
2026/03/02 22:58	upstream	11439c4635ed	b9dd6534	.config	console log	report	syz / log	C		[disk image] [vmlinux] [kernel image]	ci-upstream-kasan-gce	INFO: task hung in blk_trace_ioctl
2023/11/27 00:50	upstream	090472ed9c92	5b429f39	.config	console log	report	syz	C		[disk image] [vmlinux] [kernel image]	ci-upstream-kasan-gce	INFO: task hung in blk_trace_ioctl
2023/11/26 21:05	linux-next	8c9660f65153	5b429f39	.config	console log	report	syz	C		[disk image] [vmlinux] [kernel image]	ci-upstream-linux-next-kasan-gce-root	INFO: task hung in blk_trace_ioctl
2024/11/11 04:00	upstream	a9cda7c0ffed	6b856513	.config	console log	report	syz / log			[disk image] [vmlinux] [kernel image]	ci-upstream-kasan-gce-smack-root	INFO: task hung in blk_trace_ioctl
2024/03/12 17:11	upstream	855684c7d938	c35c26ec	.config	strace log	report	syz			[disk image] [vmlinux] [kernel image]	ci-upstream-kasan-gce-root	INFO: task hung in blk_trace_ioctl
2026/02/22 07:06	upstream	d79526b89571	6e7b5511	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-upstream-kasan-gce	INFO: task hung in blk_trace_ioctl
2026/01/15 09:27	upstream	944aacb68baf	d6526ea3	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-upstream-kasan-gce-selinux-root	INFO: task hung in blk_trace_ioctl
2026/01/05 10:29	upstream	3609fa95fb0f	d6526ea3	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-upstream-kasan-gce	INFO: task hung in blk_trace_ioctl
2026/01/01 03:39	upstream	9528d5c091c5	d6526ea3	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-upstream-kasan-gce	INFO: task hung in blk_trace_ioctl
2025/12/30 08:16	upstream	8640b74557fc	d6526ea3	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-upstream-kasan-gce	INFO: task hung in blk_trace_ioctl
2025/12/14 14:40	upstream	8f0b4cce4481	d6526ea3	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-upstream-kasan-gce	INFO: task hung in blk_trace_ioctl
2025/12/05 21:41	upstream	2061f18ad76e	d6526ea3	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-upstream-kasan-gce-root	INFO: task hung in blk_trace_ioctl
2025/11/28 20:10	upstream	e538109ac71d	d1b870e1	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-qemu-gce-upstream-auto	INFO: task hung in blk_trace_ioctl
2025/11/26 17:46	upstream	30f09200cc4a	d6526ea3	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-upstream-kasan-gce-selinux-root	INFO: task hung in blk_trace_ioctl
2025/11/22 08:56	upstream	2eba5e05d9bc	c31c1b0b	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-upstream-kasan-gce	INFO: task hung in blk_trace_ioctl
2025/11/14 11:36	upstream	6da43bbeb691	07e030de	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-qemu-gce-upstream-auto	INFO: task hung in blk_trace_ioctl
2025/11/07 13:57	upstream	4a0c9b339199	4e1406b4	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-qemu-gce-upstream-auto	INFO: task hung in blk_trace_ioctl
2025/10/12 19:27	upstream	67029a49db6c	ff1712fe	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-qemu-gce-upstream-auto	INFO: task hung in blk_trace_ioctl
2025/10/10 14:05	upstream	5472d60c129f	ff1712fe	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-qemu-gce-upstream-auto	INFO: task hung in blk_trace_ioctl
2025/10/01 11:07	upstream	50c19e20ed2e	65a0eece	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-upstream-kasan-gce-selinux-root	INFO: task hung in blk_trace_ioctl
2025/08/29 12:41	upstream	07d9df80082b	3e1beec6	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-upstream-kasan-gce-root	INFO: task hung in blk_trace_ioctl
2025/08/28 21:19	upstream	07d9df80082b	443c11c7	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-upstream-kasan-gce	INFO: task hung in blk_trace_ioctl
2025/08/10 11:29	upstream	561c80369df0	32a0e5ed	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-qemu-gce-upstream-auto	INFO: task hung in blk_trace_ioctl
2025/07/21 02:44	upstream	990b11a523a8	7117feec	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-qemu-gce-upstream-auto	INFO: task hung in blk_trace_ioctl
2025/07/20 20:37	upstream	f4a40a4282f4	7117feec	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-upstream-kasan-gce-smack-root	INFO: task hung in blk_trace_ioctl
2025/07/14 20:37	upstream	347e9f5043c8	d8fc7335	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-qemu-gce-upstream-auto	INFO: task hung in blk_trace_ioctl
2025/07/13 23:21	upstream	5d5d62298b8b	3cda49cf	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-upstream-kasan-gce	INFO: task hung in blk_trace_ioctl
2025/07/02 06:10	upstream	66701750d556	bc80e4f0	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-qemu-gce-upstream-auto	INFO: task hung in blk_trace_ioctl
2025/06/27 09:55	upstream	e34a79b96ab9	803ce19b	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-upstream-kasan-gce-smack-root	INFO: task hung in blk_trace_ioctl
2025/06/03 10:00	upstream	7f9039c524a3	b396b4bf	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-upstream-kasan-gce-root	INFO: task hung in blk_trace_ioctl
2025/05/20 00:09	upstream	a5806cd506af	8f9cf946	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-upstream-kasan-gce-smack-root	INFO: task hung in blk_trace_ioctl
2025/05/16 11:57	upstream	fee3e843b309	cfde8269	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-upstream-kasan-gce-smack-root	INFO: task hung in blk_trace_ioctl
2025/05/14 04:34	upstream	405e6c37c89e	7344edeb	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-upstream-kasan-gce	INFO: task hung in blk_trace_ioctl
2025/04/16 04:59	upstream	1a1d569a75f3	23b969b7	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-upstream-kasan-gce-selinux-root	INFO: task hung in blk_trace_ioctl
2025/03/13 03:18	upstream	0fed89a961ea	1a5d9317	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-upstream-kasan-gce-smack-root	INFO: task hung in blk_trace_ioctl
2025/02/28 06:28	upstream	1e15510b71c9	6a8fcbc4	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-upstream-kasan-gce-smack-root	INFO: task hung in blk_trace_ioctl
2024/09/18 18:47	upstream	a430d95c5efa	c673ca06	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-upstream-kasan-gce-selinux-root	INFO: task hung in blk_trace_ioctl
2024/09/17 11:19	upstream	a430d95c5efa	c673ca06	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-upstream-kasan-gce	INFO: task hung in blk_trace_ioctl
2024/09/11 13:46	upstream	8d8d276ba2fb	9326a104	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-upstream-kasan-gce	INFO: task hung in blk_trace_ioctl
2024/08/31 12:14	upstream	1934261d8974	1eda0d14	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-upstream-kasan-gce-smack-root	INFO: task hung in blk_trace_ioctl
2024/08/05 04:04	upstream	a5dbd76a8942	1786a2a8	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-upstream-kasan-gce	INFO: task hung in blk_trace_ioctl
2024/08/05 04:04	upstream	a5dbd76a8942	1786a2a8	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-upstream-kasan-gce	INFO: task hung in blk_trace_ioctl
2024/06/12 10:43	upstream	2ef5971ff345	4d75f4f7	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-upstream-kasan-gce-selinux-root	INFO: task hung in blk_trace_ioctl
2024/06/12 10:42	upstream	2ef5971ff345	4d75f4f7	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-upstream-kasan-gce-selinux-root	INFO: task hung in blk_trace_ioctl
2024/04/23 05:13	upstream	4d2008430ce8	21339d7b	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-upstream-kasan-gce-selinux-root	INFO: task hung in blk_trace_ioctl
2024/04/07 23:27	upstream	fe46a7dd189e	ca620dd8	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-upstream-kasan-gce-root	INFO: task hung in blk_trace_ioctl
2024/04/01 13:22	upstream	fe46a7dd189e	6baf5069	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-upstream-kasan-gce-selinux-root	INFO: task hung in blk_trace_ioctl
2024/03/30 22:09	upstream	480e035fc4c7	6baf5069	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-upstream-kasan-gce	INFO: task hung in blk_trace_ioctl
2024/03/30 22:09	upstream	480e035fc4c7	6baf5069	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-upstream-kasan-gce	INFO: task hung in blk_trace_ioctl
2024/03/23 06:12	upstream	fe46a7dd189e	0ea90952	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-upstream-kasan-gce-selinux-root	INFO: task hung in blk_trace_ioctl
2024/03/10 18:16	upstream	005f6f34bd47	6ee49f2e	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-upstream-kasan-gce-smack-root	INFO: task hung in blk_trace_ioctl
2024/03/05 21:26	upstream	90d35da658da	f39a7eed	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-upstream-kasan-gce-selinux-root	INFO: task hung in blk_trace_ioctl
2024/02/24 14:01	upstream	603c04e27c3e	8d446f15	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-upstream-kasan-gce-selinux-root	INFO: task hung in blk_trace_ioctl
2024/02/23 16:48	upstream	ffd2cb6b718e	8d446f15	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-upstream-kasan-gce-selinux-root	INFO: task hung in blk_trace_ioctl
2024/02/01 16:50	upstream	6764c317b6bb	81024119	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-upstream-kasan-gce-selinux-root	INFO: task hung in blk_trace_ioctl
2024/01/31 18:47	upstream	2a6526c4f389	373b66cd	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-upstream-kasan-gce	INFO: task hung in blk_trace_ioctl
2024/01/25 10:10	upstream	443b349019f2	1e153dc8	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-upstream-kasan-gce-selinux-root	INFO: task hung in blk_trace_ioctl
2024/01/24 07:58	upstream	615d30064886	1e153dc8	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-upstream-kasan-gce	INFO: task hung in blk_trace_ioctl
2024/01/11 05:32	upstream	acc657692aed	04815ef1	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-upstream-kasan-gce	INFO: task hung in blk_trace_ioctl
2024/01/07 07:49	upstream	52b1853b080a	d0304e9c	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-upstream-kasan-gce	INFO: task hung in blk_trace_ioctl
2023/12/22 23:00	upstream	8afe6f0e0e25	fb427a07	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-upstream-kasan-gce	INFO: task hung in blk_trace_ioctl
2023/12/16 18:34	upstream	c8e97fc6b4c0	3222d10c	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-upstream-kasan-gce	INFO: task hung in blk_trace_ioctl
2023/11/30 22:49	upstream	3b47bc037bd4	f819d6f7	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-upstream-kasan-gce	INFO: task hung in blk_trace_ioctl
2023/09/30 22:44	upstream	9f3ebbef746f	8e26a358	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-upstream-kasan-gce-selinux-root	INFO: task hung in blk_trace_ioctl
2025/08/07 22:47	upstream	6e64f4580381	04cffc22	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-upstream-kasan-gce-386	INFO: task hung in blk_trace_ioctl
2025/05/15 04:10	upstream	1a80a098c606	a4fa04ef	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-upstream-kasan-gce-386	INFO: task hung in blk_trace_ioctl
2025/04/08 21:26	upstream	0af2f6be1b42	a775275d	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-upstream-kasan-gce-386	INFO: task hung in blk_trace_ioctl
2026/02/18 07:23	linux-next	fe9e3edb6a21	39751c21	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-upstream-linux-next-kasan-gce-root	INFO: task hung in blk_trace_ioctl
2026/01/19 08:18	linux-next	46fe65a2c28e	d6526ea3	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-upstream-linux-next-kasan-gce-root	INFO: task hung in blk_trace_ioctl
2026/01/13 06:22	linux-next	f417b7ffcbef	d6526ea3	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-upstream-linux-next-kasan-gce-root	INFO: task hung in blk_trace_ioctl
2025/09/16 09:02	linux-next	c3067c2c3831	e2beed91	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-upstream-linux-next-kasan-gce-root	INFO: task hung in blk_trace_ioctl
2024/01/30 22:47	linux-next	596764183be8	7f400fcb	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-upstream-linux-next-kasan-gce-root	INFO: task hung in blk_trace_ioctl
2024/01/16 17:21	linux-next	8d04a7e2ee3f	2a7bcc7f	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-upstream-linux-next-kasan-gce-root	INFO: task hung in blk_trace_ioctl
2023/11/26 17:05	linux-next	8c9660f65153	5b429f39	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-upstream-linux-next-kasan-gce-root	INFO: task hung in blk_trace_ioctl

Crashes (74):

Assets (help?)

2026/03/02 22:58

upstream