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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: 971d, last: 7d02h
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 (11)
Title Replies (including bot) Last reply
[syzbot] Monthly wireless report (Jan 2026) 0 (1) 2026/01/28 22:39
[syzbot] Monthly wireless report (Dec 2025) 0 (1) 2025/12/29 08:12
[syzbot] Monthly wireless report (Nov 2025) 0 (1) 2025/11/27 07:44
[syzbot] Monthly wireless report (Oct 2025) 0 (1) 2025/10/27 08:42
[syzbot] Monthly wireless report (Sep 2025) 0 (1) 2025/09/25 16:01
[syzbot] Monthly wireless report (Aug 2025) 0 (1) 2025/08/25 13:19
[syzbot] Monthly wireless report (Jul 2025) 0 (1) 2025/07/25 12:39
[syzbot] Monthly wireless report (Jun 2025) 0 (1) 2025/06/24 07:38
[syzbot] Monthly wireless report (May 2025) 0 (1) 2025/05/24 10:04
[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
▶ ▼ Similar bugs (16)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-6.1 INFO: rcu detected stall in corrupted origin:upstream missing-backport 1 C inconclusive 4017 4d16h 1082d 0/3 upstream: reported C repro on 2023/03/13 04:03
upstream INFO: task hung in exit_aio (4) fs 1 6 441d 507d 0/29 auto-obsoleted due to no activity on 2025/03/13 05:51
android-5-15 BUG: soft lockup in corrupted origin:upstream 1 C error 33 530d 687d 0/2 upstream: reported C repro on 2024/04/11 09:01
upstream BUG: workqueue lockup (5) kernel 1 C done 15073 13h38m 2235d 0/29 upstream: reported C repro on 2020/01/14 22:04
upstream INFO: task hung in nsim_destroy (4) net 1 syz error error 436 8d23h 637d 0/29 upstream: reported syz repro on 2024/05/31 11:16
linux-6.6 INFO: rcu detected stall in corrupted origin:lts-only 1 C done 109 11d 249d 0/2 upstream: reported C repro on 2025/06/23 09:19
upstream INFO: rcu detected stall in corrupted (4) tipc 1 C done inconclusive 795 2d02h 2002d 0/29 upstream: reported C repro on 2020/09/04 18:49
linux-4.14 BUG: soft lockup in corrupted 1 C error 12 1307d 1790d 0/1 upstream: reported C repro on 2021/04/04 06:30
upstream INFO: task hung in reg_check_chans_work (7) wireless 1 C error 864 8d03h 522d 0/29 upstream: reported C repro on 2024/09/23 08:39
android-6-12 INFO: rcu detected stall in corrupted origin:lts 1 syz 2 4d17h 124d 0/1 premoderation: reported syz repro on 2025/10/26 00:18
upstream INFO: task hung in linkwatch_event (4) net 1 C done 3470 12h20m 580d 0/29 upstream: reported C repro on 2024/07/27 06:21
linux-4.19 INFO: rcu detected stall in corrupted 1 C error 2 1499d 2206d 0/1 upstream: reported C repro on 2020/02/13 05:06
upstream INFO: task hung in uevent_show (2) kernel 1 C inconclusive 8325 236d 475d 29/29 fixed on 2025/07/17 21:22
linux-4.19 BUG: soft lockup in corrupted 1 C error 3 1336d 1524d 0/1 upstream: reported C repro on 2021/12/26 20:46
linux-5.15 INFO: rcu detected stall in corrupted origin:lts-only 1 C error 112 2d23h 858d 0/3 upstream: reported C repro on 2023/10/23 02:41
upstream INFO: rcu detected stall in vms_gather_munmap_vmas mm 1 syz error error 54 44d 288d 0/29 upstream: reported syz repro on 2025/05/14 22:03
▶ ▼ Last patch testing requests (5)
Created Duration User Patch Repo Result
2024/12/06 01:00 18m retest repro upstream report log
2024/12/06 00:33 26m retest repro git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci report log
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 kworker/0:1:10 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:1     state:D stack:25880 pid:10    tgid:10    ppid:2      task_flags:0x4208060 flags:0x00080000
Workqueue: events reg_todo
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5256 [inline]
 __schedule+0x1139/0x6150 kernel/sched/core.c:6863
 __schedule_loop kernel/sched/core.c:6945 [inline]
 schedule+0xe7/0x3a0 kernel/sched/core.c:6960
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7017
 __mutex_lock_common kernel/locking/mutex.c:692 [inline]
 __mutex_lock+0xc69/0x1ca0 kernel/locking/mutex.c:776
 class_wiphy_constructor include/net/cfg80211.h:6363 [inline]
 reg_process_self_managed_hints+0x9e/0x1b0 net/wireless/reg.c:3179
 reg_todo+0x66f/0x8d0 net/wireless/reg.c:3192
 process_one_work+0x9ba/0x1b20 kernel/workqueue.c:3257

Crashes (1043):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/12/12 21:22 upstream 187d0801404f d1b870e1 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto INFO: task hung in reg_process_self_managed_hints
2025/09/02 15:18 upstream b320789d6883 807a3b61 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: task hung in reg_process_self_managed_hints
2025/08/20 19:42 upstream b19a97d57c15 bd178e57 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in reg_process_self_managed_hints
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
2025/09/01 18:16 upstream b320789d6883 807a3b61 .config console log report syz / log C [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root INFO: task hung in reg_process_self_managed_hints
2025/11/28 20:45 net-next ed01d2069e8b d6526ea3 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce 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
2025/07/15 01:05 upstream 347e9f5043c8 03fcfc4b .config console log report syz / log [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root INFO: task hung in reg_process_self_managed_hints
2024/12/18 11:02 upstream 59dbb9d81adf a0626d3a .config console log report syz / log [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root INFO: task hung in reg_process_self_managed_hints
2026/02/20 19:08 upstream 8bf22c33e7a1 741f5161 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto INFO: task hung in reg_process_self_managed_hints
2026/02/05 14:26 upstream f14faaf3a1fb 4936e85c .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto INFO: task hung in reg_process_self_managed_hints
2026/01/30 17:29 upstream 4d310797262f e01a0ca6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: task hung in reg_process_self_managed_hints
2026/01/28 02:14 upstream 1f97d9dcf536 3029c699 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto INFO: task hung in reg_process_self_managed_hints
2026/01/03 18:53 upstream 805f9a061372 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in reg_process_self_managed_hints
2025/09/24 21:18 upstream 4ea5af085908 0abd0691 .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
2025/05/02 12:13 upstream ebd297a2affa 2bfec9c0 .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
2025/01/30 06:07 upstream 805ba04cb7cc afe4eff5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in reg_process_self_managed_hints
2026/01/02 19:34 upstream b69053dd3ffb d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 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
2025/01/30 09:00 net 9e6c4e6b605c afe4eff5 .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
2025/10/07 20:43 linux-next 68842969e138 8ef35d49 .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
2025/09/28 19:01 linux-next 262858079afd 001c9061 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce INFO: task hung in reg_process_self_managed_hints
2026/02/08 19:49 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 59e4d31a0470 4c131dc4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in reg_process_self_managed_hints
2026/02/08 12:09 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 59e4d31a0470 4c131dc4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in reg_process_self_managed_hints
2026/02/07 16:14 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 59e4d31a0470 f20fc9f9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in reg_process_self_managed_hints
2026/02/06 12:20 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 59e4d31a0470 97745f52 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in reg_process_self_managed_hints
2026/02/05 21:26 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 59e4d31a0470 4936e85c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in reg_process_self_managed_hints
2026/02/05 01:56 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 59e4d31a0470 ea10c935 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in reg_process_self_managed_hints
2026/02/04 16:07 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 59e4d31a0470 ea10c935 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in reg_process_self_managed_hints
2026/02/03 10:00 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 59e4d31a0470 6df4c87a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in reg_process_self_managed_hints
2026/02/02 19:31 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 59e4d31a0470 018ebef2 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in reg_process_self_managed_hints
2026/02/02 01:16 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 59e4d31a0470 6b8752f2 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in reg_process_self_managed_hints
2026/01/31 04:58 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 59e4d31a0470 e01a0ca6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in reg_process_self_managed_hints
2026/01/29 18:50 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 59e4d31a0470 aeb6fdd5 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in reg_process_self_managed_hints
2026/01/29 05:05 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 59e4d31a0470 b78a7341 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in reg_process_self_managed_hints
2026/01/28 21:14 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 59e4d31a0470 004c195c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in reg_process_self_managed_hints
2026/01/26 21:17 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 59e4d31a0470 a4c52dd6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in reg_process_self_managed_hints
2026/01/25 09:58 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 59e4d31a0470 40acda8a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in reg_process_self_managed_hints
2026/01/25 04:56 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 59e4d31a0470 40acda8a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in reg_process_self_managed_hints
2026/01/24 21:58 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 59e4d31a0470 40acda8a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in reg_process_self_managed_hints
2026/01/24 14:23 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 59e4d31a0470 40acda8a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in reg_process_self_managed_hints
2026/01/24 12:07 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 59e4d31a0470 4f25b9b4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in reg_process_self_managed_hints
2026/01/24 08:24 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 59e4d31a0470 4f25b9b4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in reg_process_self_managed_hints
2026/01/24 01:52 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 59e4d31a0470 4f25b9b4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in reg_process_self_managed_hints
2026/01/23 23:29 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 59e4d31a0470 3181850c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in reg_process_self_managed_hints
2026/01/23 19:24 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 59e4d31a0470 3181850c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in reg_process_self_managed_hints
2026/01/23 09:10 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 59e4d31a0470 82c9c083 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in reg_process_self_managed_hints
2026/01/21 23:49 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 59e4d31a0470 101dad69 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in reg_process_self_managed_hints
2026/01/21 09:54 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 59e4d31a0470 6f1aa2f9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in reg_process_self_managed_hints
2026/01/20 16:51 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 59e4d31a0470 572effc1 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in reg_process_self_managed_hints
2026/01/19 19:45 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 59e4d31a0470 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in reg_process_self_managed_hints
2026/01/19 14:38 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 59e4d31a0470 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in reg_process_self_managed_hints
2026/01/17 22:49 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 59e4d31a0470 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in reg_process_self_managed_hints
2026/01/17 21:20 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 59e4d31a0470 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in reg_process_self_managed_hints
2026/01/17 14:07 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 59e4d31a0470 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in reg_process_self_managed_hints
2026/01/16 10:30 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 59e4d31a0470 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in reg_process_self_managed_hints
2026/01/15 21:55 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 59e4d31a0470 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in reg_process_self_managed_hints
2026/01/15 14:54 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 59e4d31a0470 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in reg_process_self_managed_hints
2026/01/15 10:12 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 59e4d31a0470 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in reg_process_self_managed_hints
2026/01/14 13:40 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 59e4d31a0470 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in reg_process_self_managed_hints
2026/01/14 11:51 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 59e4d31a0470 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in reg_process_self_managed_hints
2026/01/14 06:05 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 59e4d31a0470 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in reg_process_self_managed_hints
2026/01/13 11:26 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 59e4d31a0470 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in reg_process_self_managed_hints
2026/01/12 18:20 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 59e4d31a0470 d6526ea3 .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.