INFO: task hung in rtnl

INFO: task hung in rtnl_dellink

Status: auto-obsoleted due to no activity on 2025/03/31 12:19
Subsystems: net
[Documentation on labels]
First crash: 427d, last: 427d

▶ ▼ Similar bugs (2)

Kernel	Title	Rank 🛈	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
upstream	INFO: task hung in rtnl_dellink (2) net	1				1	286d	286d	0/29	auto-obsoleted due to no activity on 2025/08/19 19:16
upstream	INFO: task hung in rtnl_dellink (3) net	1				1	121d	121d	0/29	auto-obsoleted due to no activity on 2026/01/31 10:00

Sample crash report:

INFO: task syz.2.671:8404 blocked for more than 157 seconds.
      Not tainted 6.13.0-rc3-syzkaller-00762-g9268abe611b0 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.2.671       state:D stack:23544 pid:8404  tgid:8403  ppid:5830   flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0x1850/0x4c30 kernel/sched/core.c:6756
 __schedule_loop kernel/sched/core.c:6833 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6848
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6905
 __mutex_lock_common kernel/locking/mutex.c:665 [inline]
 __mutex_lock+0x7e7/0xee0 kernel/locking/mutex.c:735
 rtnl_lock net/core/rtnetlink.c:79 [inline]
 rtnl_net_lock include/linux/rtnetlink.h:128 [inline]
 rtnl_dellink+0x394/0x8d0 net/core/rtnetlink.c:3510

Crashes (1):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Assets (help?)	Manager	Title
2024/12/31 12:10	net-next	9268abe611b0	d3ccff63	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-upstream-net-kasan-gce	INFO: task hung in rtnl_dellink

* ~~Struck through~~ repros no longer work on HEAD.