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INFO: task hung in reg_process_self_managed_hints

Status: upstream: reported C repro on 2023/08/21 16:36
Subsystems: wireless
[Documentation on labels]
Reported-by: syzbot+1f16507d9ec05f64210a@syzkaller.appspotmail.com
First crash: 426d, last: 13d
Cause bisection: introduced by (bisect log) :
commit d15121be7485655129101f3960ae6add40204463
Author: Paolo Abeni <pabeni@redhat.com>
Date: Mon May 8 06:17:44 2023 +0000

  Revert "softirq: Let ksoftirqd do its job"

Crash: INFO: rcu detected stall in corrupted (log)
Repro: C syz .config
  
▶ ▼ Discussions (2)
Title Replies (including bot) Last reply
[syzbot] Monthly wireless report (Apr 2024) 0 (1) 2024/04/05 12:46
[syzbot] [net?] [wireless?] INFO: task hung in reg_process_self_managed_hints 0 (1) 2023/08/21 16:36
▶ ▼ Last patch testing requests (3)
Created Duration User Patch Repo Result
2024/08/02 03:14 33m retest repro git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci report log
2024/08/02 02:34 19m retest repro upstream report log
2023/09/02 18:30 24m retest repro upstream report log
▶ ▼ Fix bisection attempts (5)
Created Duration User Patch Repo Result
2024/03/05 17:00 2h32m bisect fix upstream OK (0) job log log
2024/01/10 16:37 3h48m bisect fix upstream OK (0) job log log
2023/12/11 05:42 3h06m bisect fix upstream OK (0) job log log
2023/11/10 01:23 3h50m bisect fix upstream OK (0) job log log
2023/10/10 18:14 5h01m bisect fix upstream OK (0) job log log

Sample crash report:
INFO: task syz-executor296:5042 blocked for more than 143 seconds.
      Not tainted 6.5.0-rc6-syzkaller-00200-gd4ddefee5160 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor296 state:D stack:24336 pid:5042  ppid:5038   flags:0x00004002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5381 [inline]
 __schedule+0xee1/0x59f0 kernel/sched/core.c:6710
 schedule+0xe7/0x1b0 kernel/sched/core.c:6786
 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6845
 __mutex_lock_common kernel/locking/mutex.c:679 [inline]
 __mutex_lock+0x967/0x1340 kernel/locking/mutex.c:747
 wiphy_lock include/net/cfg80211.h:5776 [inline]
 reg_process_self_managed_hints+0x78/0x170 net/wireless/reg.c:3181

Crashes (33):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2023/08/19 14:06 upstream d4ddefee5160 d216d8a0 .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: task hung in reg_process_self_managed_hints
2024/06/12 15:51 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 8867bbd4a056 4d75f4f7 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in reg_process_self_managed_hints
2024/08/19 02:24 upstream c3f2d783a459 dbc93b08 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: task hung in reg_process_self_managed_hints
2024/08/05 21:29 upstream de9c2c66ad8e e35c337f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in reg_process_self_managed_hints
2024/08/05 16:39 upstream de9c2c66ad8e e35c337f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in reg_process_self_managed_hints
2024/07/07 11:11 upstream 22f902dfc51e bc4ebbb5 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: task hung in reg_process_self_managed_hints
2024/06/30 03:36 upstream 8282d5af7be8 757f06b1 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: task hung in reg_process_self_managed_hints
2024/06/11 15:30 upstream 83a7eefedc9b c7d7d815 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in reg_process_self_managed_hints
2024/05/23 02:53 upstream 8f6a15f095a6 4d098039 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: task hung in reg_process_self_managed_hints
2024/04/02 18:44 upstream fe46a7dd189e 6baf5069 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: task hung in reg_process_self_managed_hints
2023/07/09 14:28 upstream 1c7873e33645 668cb1fa .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root INFO: task hung in reg_process_self_managed_hints
2023/07/02 11:50 upstream 995b406c7e97 bfc47836 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 INFO: task hung in reg_process_self_managed_hints
2024/06/09 14:47 net c44711b78608 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: task hung in reg_process_self_managed_hints
2024/07/19 02:04 linux-next 73399b58e5e5 ee4e11c8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: task hung in reg_process_self_managed_hints
2024/07/16 12:02 linux-next 4f40be61af99 b66b37bd .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: task hung in reg_process_self_managed_hints
2024/08/09 10:35 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci c912bf709078 61405512 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in reg_process_self_managed_hints
2024/07/18 14:44 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci c912bf709078 7403ec00 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in reg_process_self_managed_hints
2024/07/16 10:30 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci c912bf709078 b66b37bd .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in reg_process_self_managed_hints
2024/07/15 17:40 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci c912bf709078 efee4ed2 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in reg_process_self_managed_hints
2024/07/13 06:07 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci c912bf709078 eaeb5c15 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in reg_process_self_managed_hints
2024/07/13 06:06 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci c912bf709078 eaeb5c15 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in reg_process_self_managed_hints
2024/07/12 08:55 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci c912bf709078 eaeb5c15 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in reg_process_self_managed_hints
2024/07/11 15:44 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci ef445d1539dd c699c2eb .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in reg_process_self_managed_hints
2024/07/05 01:01 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 8e2f4becf4fa dc6bbff0 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in reg_process_self_managed_hints
2024/06/27 00:37 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci b4a3f9b4863a 880c1ca1 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in reg_process_self_managed_hints
2024/06/13 09:51 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 71a096f1ec28 2aa5052f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in reg_process_self_managed_hints
2024/05/26 22:41 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci fda5695d692c a10a183e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in reg_process_self_managed_hints
2024/05/19 13:25 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci fda5695d692c c0f1611a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in reg_process_self_managed_hints
2024/05/15 07:31 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci fda5695d692c fdb4c10c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in reg_process_self_managed_hints
2024/05/12 14:23 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci fda5695d692c 9026e142 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in reg_process_self_managed_hints
2024/04/04 02:13 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 707081b61156 51c4dcff .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in reg_process_self_managed_hints
2024/04/02 11:42 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 707081b61156 6baf5069 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in reg_process_self_managed_hints
2024/03/27 22:46 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 707081b61156 454571b6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in reg_process_self_managed_hints
* Struck through repros no longer work on HEAD.