INFO: rcu detected stall in exit_to_user_mode_loop

Status: upstream: reported C repro on 2025/06/21 15:44
Subsystems: mm
Labels: prio:low
[Documentation on labels]
Reported-by: syzbot+2642f347f7309b4880dc@syzkaller.appspotmail.com
First crash: 467d, last: 7h49m
Cause bisection: failed (error log, bisect log)
  
▶ ▼ ✨ AI Jobs (1)
ID Workflow Result Correct Bug Created Started Finished Revision
a35b7bbf assessment-security DenialOfService: ✅ Exploitable: ❌ FilesystemTrigger: ❌ NetworkTrigger: ❌ PeripheralTrigger: ❌ RemoteTrigger: ❌ Unprivileged: ❌ UserNamespace: ❌ VMGuestTrigger: ❌ VMHostTrigger: ❌ ❓ INFO: rcu detected stall in exit_to_user_mode_loop 2026/05/23 11:37 2026/05/23 11:37 2026/05/23 12:27 c69befb3
▶ ▼ Discussions (10)
Title Replies (including bot) Last reply
[PATCH net v3] net/sched: taprio: catch up in bounded time when the schedule falls behind 2 (2) 2026/09/03 00:36
[syzbot] [mm?] INFO: rcu detected stall in exit_to_user_mode_loop 4 (11) 2026/09/01 08:22
[PATCH net v2 3/3] selftests/tc-testing: taprio: add case for the software minimum interval 3 (3) 2026/08/31 07:31
Re: [PATCH net v2 2/3] net/sched: taprio: enforce a minimum interval for software schedules 2 (2) 2026/08/31 07:30
[PATCH net v2 1/3] net/sched: taprio: catch up in bounded time when the schedule falls behind 3 (3) 2026/08/31 07:30
[PATCH net v2 0/3] net/sched: taprio: fix software schedule livelocks 2 (2) 2026/08/20 06:27
[PATCH net v2 2/3] net/sched: taprio: enforce a minimum interval for software schedules 1 (1) 2026/08/20 06:27
[PATCH net 0/3] net/sched: taprio: fix software schedule livelocks 5 (5) 2026/08/19 07:50
[PATCH net 3/3] selftests/tc-testing: taprio: add case for the software minimum interval 1 (1) 2026/08/18 07:17
[PATCH net 2/3] net/sched: taprio: enforce a minimum interval for software schedules 1 (1) 2026/08/18 07:17
▶ ▼ Last patch testing requests (4)
Created Duration User Patch Repo Result
2026/09/01 01:43 27m junjie.cao@intel.com patch git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git abdf623ddb75b24659018d3952d8f61937306ae5 OK job log log
2026/08/31 08:42 26m junjie.cao@intel.com patch git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git a8455260b2e9c024d1872ac1c094793d55a7e537 error job log
2026/08/17 05:22 25m junjie.cao@linux.dev patch git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git 24ef02f934eeb48830cff6b739abc3c62b1d107b OK job log log
2025/07/29 01:07 2h29m hdanton@sina.com patch upstream OK log

Sample crash report:
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P5904/1:b..l
rcu: 	(detected by 1, t=10502 jiffies, g=14329, q=3836 ncpus=2)
task:syz.0.25        state:R  running task     stack:27256 pid:5904  tgid:5903  ppid:5752   task_flags:0x40054c flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5510 [inline]
 __schedule+0x125c/0x6730 kernel/sched/core.c:7234
 preempt_schedule_irq+0x50/0x90 kernel/sched/core.c:7556
 irqentry_exit_to_kernel_mode_preempt include/linux/irq-entry-common.h:468 [inline]
 irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:539 [inline]
 irqentry_exit+0x205/0xa00 kernel/entry/common.c:167
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:orc_ip arch/x86/kernel/unwind_orc.c:81 [inline]
RIP: 0010:__orc_find+0x86/0xf0 arch/x86/kernel/unwind_orc.c:103
Code: f2 48 d1 fa 48 8d 5c 95 00 48 89 da 48 c1 ea 03 0f b6 34 0a 48 89 da 83 e2 07 83 c2 03 40 38 f2 7c 05 40 84 f6 75 4b 48 63 13 <48> 01 da 49 39 d5 73 af 4c 8d 63 fc 49 39 ec 73 b2 4d 29 f7 49 c1
RSP: 0018:ffffc90003817258 EFLAGS: 00000246
RAX: ffffffff91c453f4 RBX: ffffffff913b4ddc RCX: dffffc0000000000
RDX: fffffffff07d3840 RSI: 0000000000000000 RDI: ffffffff913b4dbc
RBP: ffffffff913b4dbc R08: ffffffff91c4545a R09: 0000000000000007
R10: 0000000000000200 R11: 000000000000b886 R12: ffffffff913b4dfc
R13: ffffffff81b88696 R14: ffffffff913b4dbc R15: ffffffff913b4dbc
 orc_find arch/x86/kernel/unwind_orc.c:238 [inline]
 unwind_next_frame+0x2ec/0x2090 arch/x86/kernel/unwind_orc.c:510
 __unwind_start+0x3cd/0x7e0 arch/x86/kernel/unwind_orc.c:787
 unwind_start arch/x86/include/asm/unwind.h:64 [inline]
 arch_stack_walk+0x73/0xf0 arch/x86/kernel/stacktrace.c:24
 stack_trace_save+0x8e/0xc0 kernel/stacktrace.c:122
 kasan_save_stack+0x30/0x50 mm/kasan/common.c:57
 kasan_save_track+0x14/0x30 mm/kasan/common.c:78
 kasan_save_free_info+0x3b/0x70 mm/kasan/generic.c:584
 poison_slab_object mm/kasan/common.c:253 [inline]
 __kasan_slab_free+0x5f/0x80 mm/kasan/common.c:285
 kasan_slab_free include/linux/kasan.h:235 [inline]
 slab_free_hook mm/slub.c:2677 [inline]
 slab_free mm/slub.c:6377 [inline]
 kmem_cache_free+0x127/0x6b0 mm/slub.c:6504
 anon_vma_chain_free mm/rmap.c:147 [inline]
 unlink_anon_vmas+0x4c1/0x8e0 mm/rmap.c:539
 free_pgtables+0x2e7/0xd80 mm/memory.c:414
 exit_mmap+0x44c/0xa00 mm/mmap.c:1312
 __mmput+0x12a/0x410 kernel/fork.c:1187
 mmput+0x67/0x80 kernel/fork.c:1210
 exit_mm kernel/exit.c:615 [inline]
 do_exit+0x8b1/0x2ae0 kernel/exit.c:997
 do_group_exit+0xd5/0x2a0 kernel/exit.c:1152
 get_signal+0x1ec7/0x21e0 kernel/signal.c:3046
 arch_do_signal_or_restart+0x91/0x7e0 arch/x86/kernel/signal.c:337
 __exit_to_user_mode_loop kernel/entry/common.c:66 [inline]
 exit_to_user_mode_loop+0x139/0x6f0 kernel/entry/common.c:101
 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline]
 syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:318 [inline]
 do_syscall_64+0x666/0x870 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f7f6b19de99
RSP: 002b:00007f7f6bf880e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007f7f6b425fa8 RCX: 00007f7f6b19de99
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f7f6b425fa8
RBP: 00007f7f6b425fa0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f7f6b426038 R14: 00007ffca62637d0 R15: 00007ffca62638b8
 </TASK>
rcu: rcu_preempt kthread starved for 537 jiffies! g14329 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:27592 pid:16    tgid:16    ppid:2      task_flags:0x208040 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5510 [inline]
 __schedule+0x125c/0x6730 kernel/sched/core.c:7234
 __schedule_loop kernel/sched/core.c:7311 [inline]
 schedule+0xdd/0x2c0 kernel/sched/core.c:7326
 schedule_timeout+0x127/0x280 kernel/time/sleep_timeout.c:99
 rcu_gp_fqs_loop+0x1a9/0x900 kernel/rcu/tree.c:2123
 rcu_gp_kthread+0x179/0x230 kernel/rcu/tree.c:2325
 kthread+0x370/0x450 kernel/kthread.c:436
 ret_from_fork+0x72b/0xd50 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
CPU: 1 UID: 0 PID: 70 Comm: kworker/u8:4 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:csd_lock_wait kernel/smp.c:342 [inline]
RIP: 0010:smp_call_function_many_cond+0x58e/0x1870 kernel/smp.c:912
Code: b8 00 00 00 00 00 fc ff df 48 8b 54 24 08 49 89 d5 49 89 d4 49 c1 ed 03 41 83 e4 07 49 01 c5 41 83 c4 03 e8 64 99 0c 00 f3 90 <41> 0f b6 45 00 41 38 c4 7c 08 84 c0 0f 85 a8 10 00 00 8b 45 08 31
RSP: 0018:ffffc9000202f858 EFLAGS: 00000293
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff81fdc702
RDX: ffff88801e71ca80 RSI: ffffffff81fdc6dc RDI: ffff88801e71ca80
RBP: ffff8880b8443680 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000003
R13: ffffed10170886d1 R14: 0000000000000001 R15: ffff8880b853c880
FS:  0000000000000000(0000) GS:ffff888123edc000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000562378102da8 CR3: 000000000e994000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 on_each_cpu_cond_mask+0x40/0x90 kernel/smp.c:1077
 on_each_cpu include/linux/smp.h:72 [inline]
 smp_text_poke_sync_each_cpu arch/x86/kernel/alternative.c:2773 [inline]
 smp_text_poke_batch_finish+0x337/0xc60 arch/x86/kernel/alternative.c:2983
 arch_jump_label_transform_apply+0x1c/0x30 arch/x86/kernel/jump_label.c:146
 jump_label_update+0x37a/0x550 kernel/jump_label.c:910
 static_key_enable_cpuslocked+0x1bc/0x270 kernel/jump_label.c:210
 static_key_enable+0x1a/0x20 kernel/jump_label.c:223
 toggle_allocation_gate mm/kfence/core.c:911 [inline]
 toggle_allocation_gate+0xfe/0x2d0 mm/kfence/core.c:903
 process_one_work+0xa23/0x1940 kernel/workqueue.c:3322
 process_scheduled_works kernel/workqueue.c:3405 [inline]
 worker_thread+0x5ef/0xe50 kernel/workqueue.c:3486
 kthread+0x370/0x450 kernel/kthread.c:436
 ret_from_fork+0x72b/0xd50 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>

Crashes (759):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/07/27 21:40 upstream f5098b6bae76 4cb2b096 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in exit_to_user_mode_loop
2026/07/14 10:46 upstream 0f26556c5eee 2130f682 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in exit_to_user_mode_loop
2026/05/31 00:39 upstream f5e5d3509bff 6b4a8443 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: rcu detected stall in exit_to_user_mode_loop
2026/01/19 05:37 upstream 24d479d26b25 d6526ea3 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in exit_to_user_mode_loop
2025/12/16 06:36 upstream 8f0b4cce4481 d6526ea3 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: rcu detected stall in exit_to_user_mode_loop
2025/12/10 01:02 upstream cb015814f8b6 d6526ea3 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: rcu detected stall in exit_to_user_mode_loop
2025/12/05 08:02 upstream 2aa680df6806 d6526ea3 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: rcu detected stall in exit_to_user_mode_loop
2026/08/27 21:42 upstream 73e3f0710014 e2fa417d .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 INFO: rcu detected stall in exit_to_user_mode_loop
2025/07/28 21:29 net afd8c2c9e2e2 c4a95487 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in exit_to_user_mode_loop
2025/09/01 17:09 linux-next 7fa4d8dc380f 807a3b61 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce INFO: rcu detected stall in exit_to_user_mode_loop
2025/12/18 15:57 upstream ea1013c15392 d6526ea3 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: rcu detected stall in exit_to_user_mode_loop
2026/08/25 15:40 upstream 66498c75b4f8 614e416a .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 INFO: rcu detected stall in exit_to_user_mode_loop
2025/07/12 00:18 upstream 40f92e79b0aa 3cda49cf .config console log report syz / log [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root INFO: rcu detected stall in exit_to_user_mode_loop
2025/12/24 06:17 net-next 7b8e9264f55a d6526ea3 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: rcu detected stall in exit_to_user_mode_loop
2026/01/15 16:26 linux-next 9b7977f9e39b d6526ea3 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce INFO: rcu detected stall in exit_to_user_mode_loop
2026/01/13 03:33 linux-next f417b7ffcbef d6526ea3 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce INFO: rcu detected stall in exit_to_user_mode_loop
2026/01/05 03:22 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 exit_to_user_mode_loop
2025/12/25 00:13 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 exit_to_user_mode_loop
2025/12/24 11:19 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 exit_to_user_mode_loop
2025/12/24 09:55 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 exit_to_user_mode_loop
2025/12/08 02:55 linux-next 6987d58a9cbc d6526ea3 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: rcu detected stall in exit_to_user_mode_loop
2025/11/29 06:54 linux-next 7d31f578f323 d6526ea3 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: rcu detected stall in exit_to_user_mode_loop
2025/11/24 00:24 linux-next d724c6f85e80 4fb8ef37 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: rcu detected stall in exit_to_user_mode_loop
2025/11/23 11:41 linux-next d724c6f85e80 4fb8ef37 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: rcu detected stall in exit_to_user_mode_loop
2026/09/08 19:36 upstream 28924df2a08f 243b72f1 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: rcu detected stall in exit_to_user_mode_loop
2026/09/03 23:35 upstream 841e384b841a 6a988719 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in exit_to_user_mode_loop
2026/09/02 20:25 upstream 89a312991dc6 85995287 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in exit_to_user_mode_loop
2026/09/02 02:50 upstream 786262be6048 587f6b29 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in exit_to_user_mode_loop
2026/08/30 13:59 upstream 08dbfad3f504 2f52988a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in exit_to_user_mode_loop
2026/08/30 10:07 upstream 08dbfad3f504 2f52988a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: rcu detected stall in exit_to_user_mode_loop
2026/08/29 16:50 upstream cf72cbb39da8 2f52988a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: rcu detected stall in exit_to_user_mode_loop
2026/08/29 09:25 upstream cf72cbb39da8 2f52988a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: rcu detected stall in exit_to_user_mode_loop
2026/08/29 04:37 upstream c20313e98b04 bcbc8ceb .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: rcu detected stall in exit_to_user_mode_loop
2026/08/27 11:13 upstream 73e3f0710014 a2b77b9e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in exit_to_user_mode_loop
2026/08/27 01:38 upstream 45c13f3f9e3b a2b77b9e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: rcu detected stall in exit_to_user_mode_loop
2026/08/26 15:45 upstream 45c13f3f9e3b 6a91adb4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in exit_to_user_mode_loop
2026/08/26 10:58 upstream 45c13f3f9e3b 6a91adb4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in exit_to_user_mode_loop
2026/08/23 23:51 upstream 2709dd5ae32f 1e72964b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in exit_to_user_mode_loop
2026/08/23 17:10 upstream 2709dd5ae32f 1e72964b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in exit_to_user_mode_loop
2026/08/22 21:29 upstream 66fb95a52111 1e72964b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: rcu detected stall in exit_to_user_mode_loop
2026/08/21 07:11 upstream 9328b3b03bdc 1e72964b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: rcu detected stall in exit_to_user_mode_loop
2026/08/11 17:03 upstream f5bbbfec59b4 557a89d3 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto INFO: rcu detected stall in exit_to_user_mode_loop
2026/08/01 22:08 upstream 2d2338c93da7 e611ffe1 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: rcu detected stall in exit_to_user_mode_loop
2025/09/19 13:03 upstream 097a6c336d00 67c37560 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: rcu detected stall in exit_to_user_mode_loop
2025/06/18 11:15 upstream 52da431bf03b ca631f70 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: rcu detected stall in exit_to_user_mode_loop
2025/06/17 15:38 upstream 9afe652958c3 417d98fa .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: rcu detected stall in exit_to_user_mode_loop
2025/06/12 11:07 upstream 2c4a1f3fe03e 98683f8f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: rcu detected stall in exit_to_user_mode_loop
2026/09/08 23:48 net e0554c6276da 243b72f1 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in exit_to_user_mode_loop
2026/09/08 03:20 net 74f27fc8642b 680aa3e1 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in exit_to_user_mode_loop
2026/09/05 22:39 net 2b4707a149a5 4f7b22a0 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in exit_to_user_mode_loop
2026/09/05 20:54 net 2b4707a149a5 4f7b22a0 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in exit_to_user_mode_loop
2026/09/04 22:30 net 641d03105cc0 3f042c7b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in exit_to_user_mode_loop
2026/09/04 20:39 net 641d03105cc0 3f042c7b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in exit_to_user_mode_loop
2026/09/04 01:14 net adf50c47a47f 801f0966 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in exit_to_user_mode_loop
2026/09/03 16:54 net 544d85de4dc2 6a988719 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in exit_to_user_mode_loop
2026/09/02 15:21 net 70f3995830d3 85995287 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in exit_to_user_mode_loop
2026/09/02 01:46 net 1d2929d0850f 587f6b29 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in exit_to_user_mode_loop
2026/09/01 06:09 net 1376afc7660b 316d9396 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in exit_to_user_mode_loop
2026/08/30 04:09 net 2188569e7e1b 2f52988a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in exit_to_user_mode_loop
2026/08/29 13:52 net 7e1d6caa9c6b 2f52988a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in exit_to_user_mode_loop
2026/08/28 05:58 net 81eb1867e059 e2fa417d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in exit_to_user_mode_loop
2026/08/28 01:19 net 81eb1867e059 e2fa417d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in exit_to_user_mode_loop
2026/08/27 09:57 net 991c2be78257 a2b77b9e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in exit_to_user_mode_loop
2026/08/26 18:25 net f967455fb2a5 a2b77b9e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in exit_to_user_mode_loop
2026/08/26 08:23 net dc4b95b8fee9 6a91adb4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in exit_to_user_mode_loop
2026/08/25 19:38 net c5f2613e69cc 614e416a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in exit_to_user_mode_loop
2026/08/24 04:26 net 7cbfb180945c 1e72964b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in exit_to_user_mode_loop
2026/08/24 02:37 net 7cbfb180945c 1e72964b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in exit_to_user_mode_loop
2026/08/23 20:44 net 7cbfb180945c 1e72964b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in exit_to_user_mode_loop
2026/08/23 16:01 net 7cbfb180945c 1e72964b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in exit_to_user_mode_loop
2026/08/22 04:23 net 4e15e89faac9 1e72964b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in exit_to_user_mode_loop
2026/08/21 04:50 net 91ec20351349 1e72964b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in exit_to_user_mode_loop
2026/09/08 17:19 net-next 6a41ab891fe8 243b72f1 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: rcu detected stall in exit_to_user_mode_loop
2026/09/06 10:51 net-next 31f961de2f90 4f7b22a0 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: rcu detected stall in exit_to_user_mode_loop
2026/09/05 16:19 net-next 9eab111e7657 4f7b22a0 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: rcu detected stall in exit_to_user_mode_loop
2026/08/31 23:42 net-next 1bb784eb6e38 316d9396 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: rcu detected stall in exit_to_user_mode_loop
2026/08/30 19:03 net-next 1b78070aaef6 2f52988a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: rcu detected stall in exit_to_user_mode_loop
2026/08/28 10:21 net-next 1b78070aaef6 e2fa417d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: rcu detected stall in exit_to_user_mode_loop
2026/08/28 07:25 net-next 1b78070aaef6 e2fa417d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: rcu detected stall in exit_to_user_mode_loop
2026/08/26 06:35 net-next 91ec20351349 6a91adb4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: rcu detected stall in exit_to_user_mode_loop
2026/09/05 05:51 linux-next 9d80aa4617b3 4f7b22a0 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce INFO: rcu detected stall in exit_to_user_mode_loop
2026/08/31 00:00 linux-next e30626823a40 2f52988a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce INFO: rcu detected stall in exit_to_user_mode_loop
2026/08/29 23:46 linux-next e30626823a40 2f52988a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce INFO: rcu detected stall in exit_to_user_mode_loop
2026/08/29 19:01 linux-next e30626823a40 2f52988a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: rcu detected stall in exit_to_user_mode_loop
2026/08/26 23:23 linux-next f82a5da2f049 a2b77b9e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce INFO: rcu detected stall in exit_to_user_mode_loop
2026/02/01 08:22 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 0a06917432a7 6b8752f2 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb INFO: rcu detected stall in exit_to_user_mode_loop
2026/02/16 01:37 bpf-next 4c51f90d45dc 1e62d198 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-next-kasan-gce BUG: soft lockup in exit_to_user_mode_loop
* Struck through repros no longer work on HEAD.