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INFO: rcu detected stall in gc_worker (3)

Status: upstream: reported C repro on 2022/03/20 12:02
Subsystems: netfilter
[Documentation on labels]
Reported-by: syzbot+eec403943a2a2455adaa@syzkaller.appspotmail.com
First crash: 1414d, last: 18h24m
Cause bisection: introduced by (bisect log) :
commit ec97ecf1ebe485a17cd8395a5f35e6b80b57665a
Author: Mohit P. Tahiliani <tahiliani@nitk.edu.in>
Date: Wed Jan 22 18:22:33 2020 +0000

  net: sched: add Flow Queue PIE packet scheduler

Crash: INFO: rcu detected stall in fq_pie_timer (log)
Repro: C syz .config
  
Fix bisection: fixed by (bisect log) :
commit 8c21ab1bae945686c602c5bfa4e3f3352c2452c5
Author: Eric Dumazet <edumazet@google.com>
Date: Tue Aug 29 12:35:41 2023 +0000

  net/sched: fq_pie: avoid stalls in fq_pie_timer()

  
▶ ▼ Discussions (17)
Title Replies (including bot) Last reply
[syzbot] Monthly netfilter report (Dec 2025) 0 (1) 2025/12/26 07:47
[syzbot] Monthly netfilter report (Nov 2025) 0 (1) 2025/11/24 12:38
[syzbot] Monthly netfilter report (Sep 2025) 0 (1) 2025/09/20 18:33
[syzbot] Monthly netfilter report (Aug 2025) 0 (1) 2025/08/20 08:11
[syzbot] Monthly netfilter report (Jul 2025) 0 (1) 2025/07/20 09:04
[syzbot] Monthly netfilter report (Jun 2025) 0 (1) 2025/06/19 08:20
[syzbot] Monthly netfilter report (Apr 2025) 0 (1) 2025/04/17 08:38
[syzbot] Monthly netfilter report (Feb 2025) 0 (1) 2025/02/13 12:34
[syzbot] Monthly netfilter report (Jan 2025) 0 (1) 2025/01/13 12:40
[syzbot] Monthly netfilter report (Dec 2024) 0 (1) 2024/12/13 13:16
[syzbot] Monthly netfilter report (Nov 2024) 0 (1) 2024/11/13 11:07
[syzbot] Monthly netfilter report (Aug 2024) 0 (1) 2024/08/05 12:54
[syzbot] INFO: rcu detected stall in gc_worker (3) 0 (3) 2024/03/06 22:38
[syzbot] Monthly netfilter report (Feb 2024) 0 (1) 2024/02/09 08:36
[syzbot] Monthly netfilter report (Jan 2024) 0 (1) 2024/01/03 10:47
[syzbot] Monthly netfilter report (Aug 2023) 0 (1) 2023/08/29 12:53
Re: [syzbot] INFO: rcu detected stall in gc_worker (3) 1 (1) 2022/03/21 21:01
▶ ▼ Similar bugs (5)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream INFO: rcu detected stall in gc_worker (2) netfilter 1 C unreliable 4 1473d 1511d 0/29 closed as invalid on 2022/02/08 10:33
upstream INFO: rcu detected stall in gc_worker netfilter 1 8 2477d 2562d 0/29 auto-closed as invalid on 2019/10/14 16:34
linux-6.1 INFO: rcu detected stall in gc_worker origin:lts-only 1 C inconclusive 103 2d11h 940d 0/3 upstream: reported C repro on 2023/07/03 02:12
linux-5.15 INFO: rcu detected stall in gc_worker origin:upstream 1 C error 117 5d06h 905d 0/3 upstream: reported C repro on 2023/08/06 21:00
linux-4.19 INFO: rcu detected stall in gc_worker 1 syz error 1 1376d 1376d 0/1 upstream: reported syz repro on 2022/04/22 15:43
▶ ▼ Last patch testing requests (19)
Created Duration User Patch Repo Result
2024/12/01 04:16 14m retest repro https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing report log
2024/12/01 03:18 18m retest repro upstream report log
2024/12/01 03:18 18m retest repro linux-next report log
2024/12/01 02:43 27m retest repro git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci OK log
2024/11/15 07:50 27m retest repro upstream report log
2024/11/15 07:50 26m retest repro upstream report log
2024/11/15 07:50 18m retest repro upstream report log
2024/11/15 07:50 23m retest repro upstream OK log
2024/11/15 07:50 25m retest repro upstream report log
2024/04/13 10:36 22m retest repro upstream error
2023/09/25 11:55 22m hdanton@sina.com patch https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master OK log
2023/09/25 11:03 18m hdanton@sina.com https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master report log
2022/07/31 09:48 11m hdanton@sina.com patch https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git 91265a6da44d report log
2022/07/31 08:16 11m hdanton@sina.com patch https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git 91265a6da44d report log
2022/07/31 07:46 10m hdanton@sina.com patch https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git 91265a6da44d report log
2022/03/21 06:31 10m hdanton@sina.com patch upstream report log
2022/03/21 03:15 6m hdanton@sina.com patch https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/ 91265a6da44d error
2022/03/21 01:20 10m hdanton@sina.com patch https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/ 91265a6da44d report log
2022/03/20 15:22 10m hdanton@sina.com patch https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/ 91265a6da44d report log
▶ ▼ Fix bisection attempts (4)
Created Duration User Patch Repo Result
2024/03/06 10:47 11h50m bisect fix net OK (1) job log
2023/10/21 03:25 2h43m bisect fix upstream OK (0) job log log
2023/05/04 18:38 35m bisect fix upstream OK (0) job log log
2023/04/03 14:55 37m bisect fix upstream OK (0) job log log
▶ ▼ Cause bisection attempts (2)
Created Duration User Patch Repo Result
2023/09/24 00:12 10h45m bisect net OK (1) job log log
2022/03/16 11:54 3h36m bisect linux-next OK (0) job log log
marked invalid by nogikh@google.com

Sample crash report:
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P5185/1:b..l P5942/1:b..l P5947/1:b..l
rcu: 	(detected by 0, t=10502 jiffies, g=9401, q=300 ncpus=2)
task:kworker/1:4     state:R  running task     stack:27080 pid:5947  tgid:5947  ppid:2      task_flags:0x4208060 flags:0x00080000
Workqueue: events_power_efficient gc_worker
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5256 [inline]
 __schedule+0x1139/0x6150 kernel/sched/core.c:6863
 preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7190
 irqentry_exit+0x1d8/0x8c0 kernel/entry/common.c:216
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:__seqprop_spinlock_sequence include/linux/seqlock.h:227 [inline]
RIP: 0010:nf_conntrack_get_ht include/net/netfilter/nf_conntrack.h:342 [inline]
RIP: 0010:gc_worker+0x2d5/0x16e0 net/netfilter/nf_conntrack_core.c:1548
Code: 00 00 48 c7 c7 a8 7a 89 90 e8 57 77 05 f8 9c 5b 81 e3 00 02 00 00 31 ff 48 89 de e8 a5 68 2a f8 58 48 85 db 0f 85 d4 0f 00 00 <e8> c6 6d 2a f8 8b 1d 10 ec f4 06 41 89 dc 31 ff 41 83 e4 01 44 89
RSP: 0018:ffffc900035a7ad8 EFLAGS: 00000293
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff899499c9
RDX: ffff888026ca0000 RSI: ffffffff899499d8 RDI: 0000000000000007
RBP: ffffffff9b0a792c R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000000 R11: ffff888026ca0b30 R12: ffff88814ce00000
R13: 0000000000040000 R14: dffffc0000000000 R15: 0000000000001770
 process_one_work+0x9ba/0x1b20 kernel/workqueue.c:3257
 process_scheduled_works kernel/workqueue.c:3340 [inline]
 worker_thread+0x6c8/0xf10 kernel/workqueue.c:3421
 kthread+0x3c5/0x780 kernel/kthread.c:463
 ret_from_fork+0x983/0xb10 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
 </TASK>
task:syz-executor    state:R  running task     stack:23896 pid:5942  tgid:5942  ppid:5938   task_flags:0x400140 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5256 [inline]
 __schedule+0x1139/0x6150 kernel/sched/core.c:6863
 preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7190
 irqentry_exit+0x1d8/0x8c0 kernel/entry/common.c:216
 asm_sysvec_reschedule_ipi+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:lock_is_held_type+0x107/0x150 kernel/locking/lockdep.c:5945
Code: 00 00 b8 ff ff ff ff 65 0f c1 05 5c 80 3a 08 83 f8 01 75 2d 9c 58 f6 c4 02 75 43 48 f7 04 24 00 02 00 00 74 01 fb 48 83 c4 08 <44> 89 e8 5b 5d 41 5c 41 5d 41 5e 41 5f e9 87 2c 03 00 45 31 ed eb
RSP: 0018:ffffc900042d7ae8 EFLAGS: 00000286
RAX: 0000000000000046 RBX: ffff88802c740b58 RCX: 0000000000000001
RDX: 0000000000000000 RSI: ffffffff8daa967a RDI: ffffffff8bf2b580
RBP: ffffffff8e3c96a0 R08: 0000000000000006 R09: 0000000000000000
R10: 0000000000001000 R11: ffff88802c740b30 R12: ffff88802c740000
R13: 0000000000000001 R14: 00000000ffffffff R15: 0000000000000001
 lookup_page_ext+0x6e/0x100 mm/page_ext.c:254
 page_ext_iter_begin include/linux/page_ext.h:132 [inline]
 __page_table_check_zero+0x150/0x4a0 mm/page_table_check.c:139
 page_table_check_free include/linux/page_table_check.h:43 [inline]
 free_pages_prepare mm/page_alloc.c:1434 [inline]
 __free_frozen_pages+0x7d0/0x1170 mm/page_alloc.c:2973
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x4c/0xf0 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x195/0x1e0 mm/kasan/quarantine.c:286
 __kasan_slab_alloc+0x69/0x90 mm/kasan/common.c:350
 kasan_slab_alloc include/linux/kasan.h:253 [inline]
 slab_post_alloc_hook mm/slub.c:4953 [inline]
 slab_alloc_node mm/slub.c:5263 [inline]
 kmem_cache_alloc_lru_noprof+0x262/0x770 mm/slub.c:5282
 sock_alloc_inode+0x25/0x1c0 net/socket.c:322
 alloc_inode+0x64/0x240 fs/inode.c:346
 new_inode_pseudo include/linux/fs.h:2964 [inline]
 sock_alloc+0x40/0x280 net/socket.c:637
 __sock_create+0xc2/0x8a0 net/socket.c:1569
 sock_create net/socket.c:1663 [inline]
 __sys_socket_create net/socket.c:1700 [inline]
 __sys_socket+0x14d/0x260 net/socket.c:1747
 __do_sys_socket net/socket.c:1761 [inline]
 __se_sys_socket net/socket.c:1759 [inline]
 __x64_sys_socket+0x72/0xb0 net/socket.c:1759
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f9990d91667
RSP: 002b:00007ffddb65e7f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000029
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f9990d91667
RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000010
RBP: 0000000000000005 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000050012
R13: 00007ffddb65e820 R14: 00007f9991b146a4 R15: 00007f9991b14620
 </TASK>
task:udevd           state:R  running task     stack:26320 pid:5185  tgid:5185  ppid:1      task_flags:0x400140 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5256 [inline]
 __schedule+0x1139/0x6150 kernel/sched/core.c:6863
 preempt_schedule_common+0x44/0xc0 kernel/sched/core.c:7047
 preempt_schedule_thunk+0x16/0x30 arch/x86/entry/thunk.S:12
 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
 _raw_spin_unlock_irqrestore+0x61/0x80 kernel/locking/spinlock.c:194
 sock_def_readable+0x15b/0x5d0 net/core/sock.c:3611
 __netlink_sendskb net/netlink/af_netlink.c:1263 [inline]
 netlink_sendskb net/netlink/af_netlink.c:1269 [inline]
 netlink_unicast+0x75f/0x870 net/netlink/af_netlink.c:1359
 netlink_sendmsg+0x8c8/0xdd0 net/netlink/af_netlink.c:1894
 sock_sendmsg_nosec net/socket.c:727 [inline]
 __sock_sendmsg net/socket.c:742 [inline]
 ____sys_sendmsg+0xa5d/0xc30 net/socket.c:2592
 ___sys_sendmsg+0x134/0x1d0 net/socket.c:2646
 __sys_sendmsg+0x16d/0x220 net/socket.c:2678
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f3c122a7407
RSP: 002b:00007fff7d0ffc50 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f3c1294d880 RCX: 00007f3c122a7407
RDX: 0000000000000000 RSI: 00007fff7d0ffcb0 RDI: 0000000000000004
RBP: 000055f08e69b290 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 000000000000007c
R13: 000055f08e45ed80 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
rcu: rcu_preempt kthread starved for 10577 jiffies! g9401 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
rcu: 	Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt     state:R  running task     stack:29104 pid:16    tgid:16    ppid:2      task_flags:0x208040 flags:0x00080000
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_timeout+0x123/0x290 kernel/time/sleep_timeout.c:99
 rcu_gp_fqs_loop+0x1ea/0xaf0 kernel/rcu/tree.c:2083
 rcu_gp_kthread+0x26d/0x380 kernel/rcu/tree.c:2285
 kthread+0x3c5/0x780 kernel/kthread.c:463
 ret_from_fork+0x983/0xb10 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:pv_native_safe_halt+0xf/0x20 arch/x86/kernel/paravirt.c:82
Code: 26 5f 02 c3 cc cc cc cc 0f 1f 00 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 13 99 11 00 fb f4 <e9> cc 35 03 00 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90
RSP: 0018:ffffc90000197de8 EFLAGS: 000002c6
RAX: 000000000009fdcd RBX: 0000000000000001 RCX: ffffffff8b78c6d9
RDX: 0000000000000000 RSI: ffffffff8dacf709 RDI: ffffffff8bf2b580
RBP: ffffed1003b57498 R08: 0000000000000001 R09: ffffed10170a673d
R10: ffff8880b85339eb R11: ffff88801dabaff0 R12: 0000000000000001
R13: ffff88801daba4c0 R14: ffffffff9088cdd0 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8881249f1000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000002 CR3: 0000000076cb9000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 arch_safe_halt arch/x86/include/asm/paravirt.h:107 [inline]
 default_idle+0x13/0x20 arch/x86/kernel/process.c:767
 default_idle_call+0x6c/0xb0 kernel/sched/idle.c:122
 cpuidle_idle_call kernel/sched/idle.c:191 [inline]
 do_idle+0x38d/0x510 kernel/sched/idle.c:332
 cpu_startup_entry+0x4f/0x60 kernel/sched/idle.c:430
 start_secondary+0x21d/0x2d0 arch/x86/kernel/smpboot.c:312
 common_startup_64+0x13e/0x148
 </TASK>

Crashes (297):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/01/18 03:12 upstream d3eeb99bbc99 d6526ea3 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in gc_worker
2025/12/23 11:23 upstream b927546677c8 d6526ea3 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in gc_worker
2025/12/13 00:52 upstream 187d0801404f d6526ea3 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in gc_worker
2025/05/08 12:31 upstream 707df3375124 dbf35fa1 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in gc_worker
2024/05/26 13:05 upstream 9b62e02e6336 a10a183e .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in gc_worker
2024/05/26 12:02 upstream 9b62e02e6336 a10a183e .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in gc_worker
2023/09/10 21:03 upstream 535a265d7f0d 6654cf89 .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: rcu detected stall in gc_worker
2023/08/21 02:28 upstream 706a74159504 d216d8a0 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in gc_worker
2022/12/25 05:32 upstream 72a85e2b0a1e 9da18ae8 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in gc_worker
2026/01/02 07:52 linux-next cc3aa43b44bd d6526ea3 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce INFO: rcu detected stall in gc_worker
2025/12/30 23:57 linux-next cc3aa43b44bd d6526ea3 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: rcu detected stall in gc_worker
2025/12/23 05:39 linux-next cc3aa43b44bd d6526ea3 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: rcu detected stall in gc_worker
2025/11/30 05:35 linux-next 7d31f578f323 d6526ea3 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: rcu detected stall in gc_worker
2022/03/16 11:54 linux-next 91265a6da44d 9e8eaa75 .config console log report syz C ci-upstream-linux-next-kasan-gce-root INFO: rcu detected stall in gc_worker
2026/01/17 01:56 upstream 983d014aafb1 d6526ea3 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in gc_worker
2026/01/15 19:04 upstream 944aacb68baf d6526ea3 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in gc_worker
2025/11/30 12:38 upstream 6bda50f4333f d6526ea3 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in gc_worker
2025/11/28 01:32 upstream 765e56e41a5a d6526ea3 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in gc_worker
2025/11/26 20:09 upstream 30f09200cc4a d6526ea3 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in gc_worker
2025/11/13 13:38 upstream e927c520e1ba 07e030de .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in gc_worker
2025/10/29 20:19 upstream e53642b87a4f fd2207e7 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in gc_worker
2025/09/03 15:24 upstream e6b9dce0aeeb 96a211bc .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in gc_worker
2025/09/02 11:35 upstream b320789d6883 807a3b61 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in gc_worker
2025/07/11 18:37 upstream bc9ff192a6c9 3cda49cf .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in gc_worker
2025/12/31 03:42 linux-next cc3aa43b44bd d6526ea3 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce INFO: rcu detected stall in gc_worker
2025/12/24 16:33 linux-next cc3aa43b44bd d6526ea3 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce INFO: rcu detected stall in gc_worker
2025/12/22 16:12 linux-next cc3aa43b44bd d6526ea3 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: rcu detected stall in gc_worker
2025/12/17 19:42 linux-next 12b95d29eb97 d6526ea3 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce INFO: rcu detected stall in gc_worker
2024/10/05 16:47 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 4a9fe2a8ac53 d7906eff .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-upstream-usb INFO: rcu detected stall in gc_worker
2023/08/18 05:11 upstream 16931859a650 74b106b6 .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: rcu detected stall in gc_worker
2023/07/26 20:02 net d4a7ce642100 41fe1bae .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in gc_worker
2023/08/09 22:18 net-next b9b05381e5d7 13ca4cd6 .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: rcu detected stall in gc_worker
2023/07/19 12:25 net-next 3223eeaf0545 022df2bb .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: rcu detected stall in gc_worker
2023/06/27 04:22 net-next 771ca3de2502 4cd5bb25 .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: rcu detected stall in gc_worker
2023/07/18 12:43 linux-next aeba456828b4 20f8b3c2 .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: rcu detected stall in gc_worker
2026/01/27 18:16 upstream fcb70a56f4d8 9a514c2f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in gc_worker
2026/01/22 08:44 upstream cf38b2340c0e 101dad69 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in gc_worker
2026/01/15 12:45 upstream 944aacb68baf d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in gc_worker
2026/01/11 07:36 upstream 0fa27899e014 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in gc_worker
2026/01/08 23:06 upstream 79b95d74470d d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in gc_worker
2026/01/08 05:37 upstream f0b9d8eb98df d1b870e1 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto INFO: rcu detected stall in gc_worker
2026/01/06 12:33 upstream 7f98ab9da046 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in gc_worker
2026/01/01 18:53 upstream b69053dd3ffb d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in gc_worker
2026/01/01 00:47 upstream 349bd28a86f2 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in gc_worker
2025/12/20 03:29 upstream dd9b004b7ff3 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in gc_worker
2025/12/20 00:12 upstream dd9b004b7ff3 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in gc_worker
2025/12/19 19:30 upstream dd9b004b7ff3 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in gc_worker
2025/12/16 13:35 upstream 40fbbd64bba6 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in gc_worker
2025/12/13 13:07 upstream 9551a26f17d9 d1b870e1 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto INFO: rcu detected stall in gc_worker
2025/12/12 01:32 upstream d358e5254674 d1b870e1 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto INFO: rcu detected stall in gc_worker
2025/12/10 19:03 upstream 0048fbb4011e d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in gc_worker
2025/12/07 20:43 upstream 67a454e6b1c6 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in gc_worker
2025/12/01 21:27 upstream 7d0a66e4bb90 d1b870e1 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto INFO: rcu detected stall in gc_worker
2025/11/30 14:07 upstream 6bda50f4333f d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in gc_worker
2025/11/30 03:10 upstream 6bda50f4333f d1b870e1 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto INFO: rcu detected stall in gc_worker
2025/11/27 13:39 upstream 765e56e41a5a e8331348 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto INFO: rcu detected stall in gc_worker
2025/11/25 09:43 upstream ac3fd01e4c1e 64219f15 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in gc_worker
2025/11/24 02:59 upstream d0e88704d96c 4fb8ef37 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto INFO: rcu detected stall in gc_worker
2025/11/21 04:41 upstream 8e621c9a3375 280ea308 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in gc_worker
2025/11/18 09:00 upstream e7c375b18160 ef766cd7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in gc_worker
2025/11/16 04:41 upstream f824272b6e3f f7988ea4 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto INFO: rcu detected stall in gc_worker
2025/11/16 03:31 upstream f824272b6e3f f7988ea4 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto INFO: rcu detected stall in gc_worker
2025/11/11 20:36 upstream 4427259cc7f7 4e1406b4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in gc_worker
2025/11/11 12:42 upstream 4427259cc7f7 4e1406b4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in gc_worker
2025/11/11 03:30 upstream 4ea7c1717f3f 4e1406b4 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto INFO: rcu detected stall in gc_worker
2025/11/05 01:19 upstream c9cfc122f037 a6c9c731 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto INFO: rcu detected stall in gc_worker
2025/10/30 15:18 upstream e53642b87a4f 2c50b6a9 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto INFO: rcu detected stall in gc_worker
2025/10/28 14:23 upstream fd57572253bc fd2207e7 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto INFO: rcu detected stall in gc_worker
2024/05/28 05:59 upstream 2bfcfd584ff5 f550015e .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in gc_worker
2024/01/03 19:05 upstream 610a9b8f49fb 28c42cff .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: rcu detected stall in gc_worker
2025/01/12 11:13 upstream b62cef9a5c67 6dbc6a9b .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm64-mte INFO: rcu detected stall in gc_worker
2023/06/25 11:22 upstream a92b7d26c743 09ffe269 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: rcu detected stall in gc_worker
2023/08/14 01:11 net cc941e548bff 39990d51 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in gc_worker
2024/01/14 19:20 net-next 3e7aeb78ab01 551587c1 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: rcu detected stall in gc_worker
2026/01/15 02:35 linux-next b775e489bec7 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: rcu detected stall in gc_worker
2026/01/09 23:58 linux-next f417b7ffcbef d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: rcu detected stall in gc_worker
2026/01/09 18:55 linux-next f417b7ffcbef d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: rcu detected stall in gc_worker
2025/12/29 09:24 linux-next cc3aa43b44bd d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: rcu detected stall in gc_worker
2025/12/26 11:03 linux-next cc3aa43b44bd d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: rcu detected stall in gc_worker
2025/12/10 08:53 linux-next 008d3547aae5 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: rcu detected stall in gc_worker
2025/11/28 04:37 linux-next ef68bf704646 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: rcu detected stall in gc_worker
2025/11/23 11:15 linux-next d724c6f85e80 4fb8ef37 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: rcu detected stall in gc_worker
2025/11/23 01:16 linux-next d724c6f85e80 4fb8ef37 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: rcu detected stall in gc_worker
2025/11/21 21:41 linux-next d724c6f85e80 c31c1b0b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: rcu detected stall in gc_worker
2025/11/20 14:36 linux-next 88cbd8ac379c 280ea308 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: rcu detected stall in gc_worker
2025/11/14 16:07 linux-next 6d7e7251d03f f7988ea4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce INFO: rcu detected stall in gc_worker
2025/11/06 05:08 linux-next 84d39fb9d529 a6c9c731 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce INFO: rcu detected stall in gc_worker
2024/11/01 07:45 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing c67e9601e29a 96eb609f .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb INFO: rcu detected stall in gc_worker
2024/04/29 06:42 upstream e67572cd2204 07b455f9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root BUG: soft lockup in gc_worker
2024/05/24 04:18 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci fda5695d692c 8f98448e .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in gc_worker
* Struck through repros no longer work on HEAD.