syzbot


INFO: task hung in dev_ethtool (3)

Status: auto-obsoleted due to no activity on 2025/05/09 06:31
Subsystems: net
[Documentation on labels]
First crash: 220d, last: 92d
Similar bugs (4)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-6.1 INFO: task hung in dev_ethtool (2) 1 354d 354d 0/3 auto-obsoleted due to no activity on 2024/08/30 13:34
upstream INFO: task hung in dev_ethtool net 1 1260d 1260d 0/28 closed as invalid on 2022/02/08 09:40
upstream INFO: task hung in dev_ethtool (2) net 16 325d 364d 0/28 auto-obsoleted due to no activity on 2024/08/09 22:13
linux-6.1 INFO: task hung in dev_ethtool 1 455d 455d 0/3 auto-obsoleted due to no activity on 2024/05/21 09:03

Sample crash report:
INFO: task syz.4.758:9583 blocked for more than 150 seconds.
      Not tainted 6.12.0-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.4.758       state:D stack:23088 pid:9583  tgid:9574  ppid:5827   flags:0x00000004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5328 [inline]
 __schedule+0x17fa/0x4bd0 kernel/sched/core.c:6693
 __schedule_loop kernel/sched/core.c:6770 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6785
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6842
 __mutex_lock_common kernel/locking/mutex.c:684 [inline]
 __mutex_lock+0x6a7/0xd70 kernel/locking/mutex.c:752
 dev_ethtool+0x21e/0x1bc0 net/ethtool/ioctl.c:3383

Crashes (7):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/11/18 18:38 upstream adc218676eef 571351cb .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: task hung in dev_ethtool
2024/10/15 23:02 upstream 2f87d0916ce0 14943bb8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 INFO: task hung in dev_ethtool
2025/02/08 06:25 net cb827db50a88 a4f327c2 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: task hung in dev_ethtool
2024/12/30 20:20 net a024e377efed d3ccff63 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: task hung in dev_ethtool
2024/10/15 02:05 net 0b84db5d8f25 b01b6661 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: task hung in dev_ethtool
2024/10/06 08:47 net 9234a2549cb6 d7906eff .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: task hung in dev_ethtool
2024/10/03 11:40 net a0ffa68c70b3 d7906eff .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: task hung in dev_ethtool
* Struck through repros no longer work on HEAD.