INFO: rcu detected stall in x64_sys_call

Status: upstream: reported C repro on 2024/09/09 20:48
Subsystems: mm
Labels: prio:low
[Documentation on labels]
Reported-by: syzbot+65203730e781d98f23a0@syzkaller.appspotmail.com
First crash: 865d, last: 1d05h
Cause bisection: failed (error log, bisect log)
  
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ID Workflow Result Correct Bug Created Started Finished Revision
49da4b5a assessment-security DenialOfService: ✅ Exploitable: ❌ FilesystemTrigger: ❌ NetworkTrigger: ❌ PeripheralTrigger: ❌ RemoteTrigger: ❌ Unprivileged: ❌ UserNamespace: ❌ VMGuestTrigger: ❌ VMHostTrigger: ❌ ❓ INFO: rcu detected stall in x64_sys_call 2026/05/23 21:33 2026/05/23 21:33 2026/05/23 22:35 c69befb3
▶ ▼ Discussions (5)
Title Replies (including bot) Last reply
[syzbot] [mm?] INFO: rcu detected stall in x64_sys_call 0 (3) 2025/09/29 06:15
[syzbot] Monthly input report (Feb 2025) 0 (1) 2025/02/05 12:43
[syzbot] Monthly input report (Jan 2025) 0 (1) 2025/01/06 10:01
[syzbot] Monthly input report (Dec 2024) 0 (1) 2024/12/05 09:04
[syzbot] Monthly input report (Nov 2024) 0 (1) 2024/11/04 08:58
▶ ▼ Similar bugs (7)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-5.15 INFO: rcu detected stall in x64_sys_call 1 1 839d 839d 0/3 auto-obsoleted due to no activity on 2024/10/06 02:18
android-6-12 BUG: soft lockup in x64_sys_call 1 23 343d 478d 0/1 auto-obsoleted due to no activity on 2026/01/28 18:33
linux-5.15 INFO: rcu detected stall in x64_sys_call (2) 1 1 38d 38d 0/3 upstream: reported on 2026/09/06 08:22
linux-6.1 INFO: rcu detected stall in x64_sys_call 1 1 529d 529d 0/3 auto-obsoleted due to no activity on 2025/08/11 06:03
android-5-15 BUG: soft lockup in x64_sys_call origin:upstream 1 syz, C 51 3d17h 780d 0/2 upstream: reported C repro on 2024/08/25 04:51
android-6-1 BUG: soft lockup in x64_sys_call origin:upstream 1 syz, C error 12 3d14h 241d 0/2 upstream: reported C repro on 2026/02/15 08:06
android-6-12 BUG: soft lockup in x64_sys_call (2) origin:upstream 1 syz, C 6 232d 232d 1/1 fixed on 2026/03/04 11:24
▶ ▼ Last patch testing requests (10)
Created Duration User Patch Repo Result
2026/02/12 09:34 19m retest repro upstream report log
2026/02/12 09:34 56m retest repro linux-next report log
2026/02/12 09:34 1h03m retest repro net-next report log
2026/02/12 09:34 1h07m retest repro upstream report log
2026/02/12 09:34 1h08m retest repro upstream report log
2026/02/12 08:45 52m retest repro upstream report log
2026/02/12 09:43 16m retest repro https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing log
2026/02/12 08:45 34m retest repro upstream report log
2026/02/12 08:45 26m retest repro upstream report log
2026/02/12 07:34 37m retest repro linux-next report log

Sample crash report:
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	1-...!: (1 GPs behind) idle=f7b4/1/0x4000000000000000 softirq=15883/15883 fqs=12
rcu: 	(detected by 0, t=10506 jiffies, g=15273, q=1877 ncpus=2)
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 5659 Comm: udevd Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026
RIP: 0010:check_preemption_disabled+0x6/0xd0 lib/smp_processor_id.c:14
Code: c7 c6 60 db 6d 8c eb 1c 66 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 55 41 57 41 56 53 <65> 8b 05 db 3c ad 08 65 48 8b 0d ab 3c ad 08 85 c9 74 0c 5b 41 5e
RSP: 0018:ffffc90000a18d28 EFLAGS: 00000046
RAX: 0000000000000000 RBX: 00000000ffffffff RCX: ffff88807e710000
RDX: 0000000001000001 RSI: ffffffff8e484144 RDI: ffffffff8c6ddb80
RBP: 00000000ffffffff R08: 0000000001000001 R09: 0000000000000004
R10: dffffc0000000000 R11: fffff520001431a8 R12: 0000000000000046
R13: ffff88807e710000 R14: ffff8880b8528298 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff888123bbf000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000565281a61a38 CR3: 000000000fb48000 CR4: 00000000003526f0
Call Trace:
 <IRQ>
 lockdep_recursion_inc kernel/locking/lockdep.c:465 [inline]
 lock_is_held_type+0x5a/0x150 kernel/locking/lockdep.c:6015
 lock_is_held include/linux/lockdep.h:249 [inline]
 enqueue_hrtimer+0x79/0x2c0 kernel/time/hrtimer.c:1134
 __run_hrtimer kernel/time/hrtimer.c:2090 [inline]
 __hrtimer_run_queues+0x4ce/0xa10 kernel/time/hrtimer.c:2131
 hrtimer_interrupt+0x4cd/0xaa0 kernel/time/hrtimer.c:2250
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1051 [inline]
 __sysvec_apic_timer_interrupt+0x102/0x430 arch/x86/kernel/apic/apic.c:1068
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1062 [inline]
 sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1062
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:deref_stack_reg+0x1a2/0x220 arch/x86/kernel/unwind_orc.c:422
Code: 39 f0 0f 96 c0 20 c8 3c 01 75 30 4c 89 c7 49 89 f7 e8 12 07 00 00 49 89 c6 48 8b 5c 24 08 48 89 d8 48 c1 e8 03 42 80 3c 38 00 <74> 08 48 89 df e8 b4 b6 c0 00 4c 89 33 b0 01 eb 02 31 c0 48 83 c4
RSP: 0018:ffffc900040af1d8 EFLAGS: 00000246
RAX: 1ffff92000815e61 RBX: ffffc900040af308 RCX: 0000000000000001
RDX: ffffc900040af308 RSI: dffffc0000000000 RDI: ffffc900040afec8
RBP: ffffc900040a8000 R08: ffffc900040afec8 R09: 0000000000000000
R10: ffffc900040af318 R11: fffff52000815e65 R12: 1ffff92000815e5a
R13: 1ffff92000815e5b R14: ffffc900040aff38 R15: dffffc0000000000
 unwind_next_frame+0x19bd/0x2550 arch/x86/kernel/unwind_orc.c:-1
 arch_stack_walk+0x11b/0x150 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0xa9/0x100 kernel/stacktrace.c:122
 save_stack+0x122/0x230 mm/page_owner.c:183
 __reset_page_owner+0x71/0x1f0 mm/page_owner.c:338
 reset_page_owner include/linux/page_owner.h:26 [inline]
 __free_pages_prepare mm/page_alloc.c:1418 [inline]
 free_unref_folios+0xdc2/0x14e0 mm/page_alloc.c:3022
 folios_put_refs+0x9e9/0xb30 mm/folio.c:1036
 free_pages_and_swap_cache+0x2ba/0x490 mm/swap_state.c:592
 __tlb_batch_free_encoded_pages mm/mmu_gather.c:138 [inline]
 tlb_batch_pages_flush mm/mmu_gather.c:151 [inline]
 tlb_flush_mmu_free mm/mmu_gather.c:417 [inline]
 tlb_flush_mmu+0x6d3/0xa30 mm/mmu_gather.c:424
 tlb_finish_mmu+0xf4/0x220 mm/mmu_gather.c:549
 exit_mmap+0x4b2/0x9f0 mm/mmap.c:1328
 __mmput+0x118/0x420 kernel/fork.c:1193
 exit_mm+0x18e/0x240 kernel/exit.c:592
 do_exit+0x6cd/0x2360 kernel/exit.c:974
 do_group_exit+0x22d/0x2f0 kernel/exit.c:1129
 __do_sys_exit_group kernel/exit.c:1140 [inline]
 __se_sys_exit_group kernel/exit.c:1138 [inline]
 __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1138
 x64_sys_call+0x18c6/0x18d0 arch/x86/include/generated/asm/syscalls_64.h:232
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f1b21ef16c5
Code: Unable to access opcode bytes at 0x7f1b21ef169b.
RSP: 002b:00007fff3f9f1918 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000565281a60650 RCX: 00007f1b21ef16c5
RDX: 00000000000000e7 RSI: fffffffffffffe68 RDI: 0000000000000000
RBP: 0000565281a58910 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff3f9f1960 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
rcu: rcu_preempt kthread starved for 10418 jiffies! g15273 f0x0 RCU_GP_WAIT_FQS(5) ->state=R ->cpu=0
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:27496 pid:17    tgid:17    ppid:2      task_flags:0x208040 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5533 [inline]
 __schedule+0x17db/0x58f0 kernel/sched/core.c:7284
 __schedule_loop kernel/sched/core.c:7361 [inline]
 schedule+0x164/0x2b0 kernel/sched/core.c:7376
 schedule_timeout+0x152/0x2c0 kernel/time/sleep_timeout.c:99
 rcu_gp_fqs_loop+0x30c/0x11f0 kernel/rcu/tree.c:2122
 rcu_gp_kthread+0x9e/0x2b0 kernel/rcu/tree.c:2330
 kthread+0x38b/0x480 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 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: 0 UID: 101 PID: 5278 Comm: dhcpcd Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026
RIP: 0010:csd_lock_wait kernel/smp.c:363 [inline]
RIP: 0010:csd_lock kernel/smp.c:396 [inline]
RIP: 0010:smp_call_function_many_cond+0x61e/0x1500 kernel/smp.c:944
Code: b6 04 04 84 c0 0f 85 d5 03 00 00 44 8b 3b 44 89 fe 83 e6 01 31 ff e8 91 59 0c 00 41 83 e7 01 75 07 e8 86 54 0c 00 eb 3f f3 90 <48> b8 00 00 00 00 00 fc ff df 41 0f b6 04 04 84 c0 75 0f f7 03 01
RSP: 0018:ffffc900034cf460 EFLAGS: 00000293
RAX: ffffffff81bbbc0e RBX: ffff8880b85414c8 RCX: ffff888028063e80
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc900034cf5b0 R08: ffff88802806541f R09: 1ffff1100500ca83
R10: dffffc0000000000 R11: ffffffff8179fad0 R12: 1ffff110170a8299
R13: 0000000000000001 R14: ffff8880b85414c0 R15: 0000000000000001
FS:  00007f754d976780(0000) GS:ffff888123abf000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055c2e772e138 CR3: 000000007766a000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 __flush_tlb_multi arch/x86/include/asm/paravirt.h:46 [inline]
 flush_tlb_multi arch/x86/mm/tlb.c:1361 [inline]
 flush_tlb_mm_range+0x910/0x10b0 arch/x86/mm/tlb.c:1435
 tlb_flush arch/x86/include/asm/tlb.h:23 [inline]
 tlb_flush_mmu_tlbonly include/asm-generic/tlb.h:509 [inline]
 tlb_flush_mmu+0x1af/0xa30 mm/mmu_gather.c:423
 tlb_finish_mmu+0xf4/0x220 mm/mmu_gather.c:549
 unmap_region+0x2a5/0x330 mm/vma.c:535
 vms_clear_ptes mm/vma.c:1383 [inline]
 vms_complete_munmap_vmas+0x427/0xbe0 mm/vma.c:1425
 do_vmi_align_munmap+0x3b7/0x4b0 mm/vma.c:1684
 __do_sys_brk mm/mmap.c:175 [inline]
 __se_sys_brk+0x69a/0xc50 mm/mmap.c:117
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f754da6f6c7
Code: 4d 85 ed 74 e0 4d 85 e4 74 0b 48 89 ef 41 ff d4 4c 89 ee eb da 48 89 f7 e8 e6 1c f3 ff eb f1 0f 1f 40 00 b8 0c 00 00 00 0f 05 <48> 8b 15 6a a7 0d 00 48 89 02 48 39 f8 72 0a 31 c0 c3 0f 1f 80 00
RSP: 002b:00007ffe80608288 EFLAGS: 00000206 ORIG_RAX: 000000000000000c
RAX: ffffffffffffffda RBX: fffffffffffef000 RCX: 00007f754da6f6c7
RDX: fffffffffffff000 RSI: 00005614da4509b0 RDI: 00005614da471000
RBP: 00005614da482000 R08: 00000000000105f0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 00007f754db51e50
R13: 0000000000000000 R14: 0000000000001081 R15: 00007f754db4aac0
 </TASK>

Crashes (674):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/10/13 21:11 upstream 24a19b953e2a 7321cd29 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: rcu detected stall in x64_sys_call
2026/03/30 06:10 upstream f242ac4a0944 356bdfc9 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in x64_sys_call
2025/10/20 19:14 upstream 211ddde0823f 1c8c8cd8 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in x64_sys_call
2025/10/06 00:49 upstream 6093a688a07d 49379ee0 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: rcu detected stall in x64_sys_call
2026/08/10 08:44 net dd057113ac7b 5d63f80b .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in x64_sys_call
2026/08/29 17:25 net-next 1b78070aaef6 2f52988a .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: rcu detected stall in x64_sys_call
2025/09/29 06:14 net-next e835faaed2f8 001c9061 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: rcu detected stall in x64_sys_call
2025/12/19 12:06 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 x64_sys_call
2025/11/29 10:31 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 x64_sys_call
2025/09/12 21:34 upstream 320475fbd590 e2beed91 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: rcu detected stall in x64_sys_call
2025/07/11 04:56 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 x64_sys_call
2025/07/01 08:47 upstream 66701750d556 6e83b42d .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: rcu detected stall in x64_sys_call
2025/03/22 14:52 upstream 88d324e69ea9 c6512ef7 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: rcu detected stall in x64_sys_call
2025/03/13 04:33 upstream 0fed89a961ea 1a5d9317 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: rcu detected stall in x64_sys_call
2025/02/02 15:19 upstream 69e858e0b8b2 568559e4 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in x64_sys_call
2026/08/24 10:59 upstream 4352b8aee980 1e72964b .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 INFO: rcu detected stall in x64_sys_call
2026/09/14 20:34 upstream 704340f1cd0d 924033e8 .config console log report syz / log [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root INFO: rcu detected stall in x64_sys_call
2026/06/29 06:03 upstream dc59e4fea9d8 fb92f11c .config console log report syz / log [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root INFO: rcu detected stall in x64_sys_call
2026/09/04 13:27 net adf50c47a47f 801f0966 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in x64_sys_call
2026/08/19 18:44 net 564973a259ec 1e72964b .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in x64_sys_call
2026/01/12 10:44 net 16ce6e6fa946 d6526ea3 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in x64_sys_call
2026/01/11 05:59 net cac2c363c41c d6526ea3 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in x64_sys_call
2025/09/22 14:44 net b65678cacc03 0ac7291c .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in x64_sys_call
2026/08/21 22:49 net-next 91ec20351349 1e72964b .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: rcu detected stall in x64_sys_call
2026/08/20 23:23 net-next 91ec20351349 1e72964b .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: rcu detected stall in x64_sys_call
2026/01/02 21:12 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 x64_sys_call
2026/01/01 19:40 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 x64_sys_call
2026/01/01 15:50 linux-next cc3aa43b44bd d6526ea3 .config console log report syz / log [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci-upstream-linux-next-kasan-gce-root INFO: rcu detected stall in x64_sys_call
2025/12/25 18:47 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 x64_sys_call
2024/10/19 11:09 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 07b887f8236e cd6fc0a3 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-upstream-usb INFO: rcu detected stall in x64_sys_call
2026/10/10 21:56 upstream 3857c2fe5449 4f92358f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in x64_sys_call
2026/10/09 22:09 upstream af32da41b032 a8add9cd .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: rcu detected stall in x64_sys_call
2026/10/08 22:36 upstream 7b63ef2d55f2 b2734a59 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in x64_sys_call
2026/10/08 01:46 upstream 602042bf29f6 6520ecdb .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in x64_sys_call
2026/10/07 11:58 upstream 602042bf29f6 f7710056 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in x64_sys_call
2026/10/06 20:10 upstream 69f80fef3153 f7710056 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: rcu detected stall in x64_sys_call
2026/10/01 05:41 upstream 551c722f4080 38f7f0d1 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: rcu detected stall in x64_sys_call
2026/09/22 09:17 upstream f0100363d8c3 e12281bd .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: rcu detected stall in x64_sys_call
2026/09/09 18:43 upstream 893e11787f78 4e8b1cc6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: rcu detected stall in x64_sys_call
2026/09/06 02:40 upstream 214f4aeb2255 4f7b22a0 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: rcu detected stall in x64_sys_call
2026/09/05 21:24 upstream 0d9ff90a5422 4f7b22a0 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in x64_sys_call
2026/09/02 06:05 upstream 786262be6048 587f6b29 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in x64_sys_call
2026/09/01 16:45 upstream 786262be6048 316d9396 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: rcu detected stall in x64_sys_call
2026/09/01 04:15 upstream bf1079577a11 316d9396 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in x64_sys_call
2026/08/28 05:51 upstream 1b78070aaef6 e2fa417d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in x64_sys_call
2026/08/23 02:00 upstream 66fb95a52111 1e72964b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: rcu detected stall in x64_sys_call
2026/08/20 15:37 upstream a4ff2be345d0 1e72964b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in x64_sys_call
2026/08/19 04:36 upstream 0f23d56f17fd 1e72964b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: rcu detected stall in x64_sys_call
2026/08/15 17:31 upstream 15ef2f78c49d 746171ee .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in x64_sys_call
2026/08/15 06:05 upstream 2f1baf1fc892 746171ee .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in x64_sys_call
2026/08/13 18:05 upstream 3aa1dcaa4f6f 4d118901 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto INFO: rcu detected stall in x64_sys_call
2026/08/13 10:57 upstream 3d6d817622b0 67796a05 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: rcu detected stall in x64_sys_call
2026/08/13 07:26 upstream 3d6d817622b0 359b2492 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto INFO: rcu detected stall in x64_sys_call
2026/08/12 14:22 upstream f5bbbfec59b4 7ae4acc7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: rcu detected stall in x64_sys_call
2026/08/12 09:23 upstream f5bbbfec59b4 ee03bfea .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto INFO: rcu detected stall in x64_sys_call
2026/08/12 04:36 upstream f5bbbfec59b4 f8d35649 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: rcu detected stall in x64_sys_call
2026/08/11 20:24 upstream f5bbbfec59b4 37a258dd .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: rcu detected stall in x64_sys_call
2026/08/11 13:39 upstream d58772d8520c 37a258dd .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: rcu detected stall in x64_sys_call
2026/08/11 12:33 upstream d58772d8520c 37a258dd .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: rcu detected stall in x64_sys_call
2026/08/11 09:18 upstream d58772d8520c 557a89d3 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto INFO: rcu detected stall in x64_sys_call
2026/08/03 00:39 upstream bd1dde877520 e611ffe1 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: rcu detected stall in x64_sys_call
2024/09/09 08:12 upstream 89f5e14d05b4 9750182a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: rcu detected stall in x64_sys_call
2024/09/05 20:42 upstream c763c4339688 464ac2ed .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: rcu detected stall in x64_sys_call
2024/08/22 13:31 upstream 872cf28b8df9 295a4b50 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: rcu detected stall in x64_sys_call
2026/08/17 18:58 upstream 8d3ae59288f1 1e72964b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 INFO: rcu detected stall in x64_sys_call
2026/10/07 20:24 net 23609bce9e1d 6520ecdb .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in x64_sys_call
2026/10/06 17:19 net d5a007b9b457 f7710056 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in x64_sys_call
2026/09/30 22:06 net 2e7ea988a032 892a21ec .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in x64_sys_call
2026/09/29 08:28 net 6b2462f07cb7 7bf4ea23 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in x64_sys_call
2026/09/27 02:40 net a7bfaba4823e a3c7249d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in x64_sys_call
2026/09/24 06:15 net ab1404ac8115 0a1606bc .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in x64_sys_call
2026/09/23 16:37 net 9c572a83037a abce1216 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in x64_sys_call
2026/09/21 03:48 net c82b797abe66 853b104b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in x64_sys_call
2026/09/18 21:05 net 46bc52d13594 8d7d05f1 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in x64_sys_call
2026/09/04 11:47 net adf50c47a47f 801f0966 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in x64_sys_call
2026/09/01 01:29 net 1376afc7660b 316d9396 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in x64_sys_call
2026/08/31 18:57 net 1376afc7660b 316d9396 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in x64_sys_call
2026/08/25 09:02 net c5f2613e69cc 23caa175 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in x64_sys_call
2026/08/21 22:12 net 746fc0787f61 1e72964b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in x64_sys_call
2026/08/20 19:58 net 91ec20351349 1e72964b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in x64_sys_call
2026/08/16 18:00 net 24ef02f934ee 746171ee .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in x64_sys_call
2026/10/07 07:40 net-next 45ad84d2800e f7710056 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: rcu detected stall in x64_sys_call
2026/10/06 03:14 net-next c0402d7640a8 f7710056 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: rcu detected stall in x64_sys_call
2026/09/07 04:51 net-next 31f961de2f90 4f7b22a0 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: rcu detected stall in x64_sys_call
2026/09/05 08:21 net-next 9eab111e7657 4f7b22a0 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: rcu detected stall in x64_sys_call
2026/08/19 06:24 net-next 61eb236c41c2 1e72964b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: rcu detected stall in x64_sys_call
2026/08/16 14:46 net-next e6a5d573d24c 746171ee .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: rcu detected stall in x64_sys_call
2026/10/05 03:59 linux-next f0406245cb98 57bbd979 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: rcu detected stall in x64_sys_call
2026/10/03 08:39 linux-next f0406245cb98 57bbd979 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce INFO: rcu detected stall in x64_sys_call
2026/09/28 01:26 linux-next f5f84daefcd9 a3c7249d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: rcu detected stall in x64_sys_call
2026/09/21 13:02 linux-next 9d80aa4617b3 853b104b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce INFO: rcu detected stall in x64_sys_call
2026/09/03 09:05 linux-next 32b6ef9a5d0e 6a988719 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: rcu detected stall in x64_sys_call
2026/09/03 03:49 linux-next 8b72f6626dc3 85995287 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: rcu detected stall in x64_sys_call
2026/08/20 05:54 linux-next 6a746cd265ae 1e72964b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: rcu detected stall in x64_sys_call
2024/10/31 18:41 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing c67e9601e29a 96eb609f .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-upstream-usb INFO: rcu detected stall in x64_sys_call
2024/10/25 10:46 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing c6d9e43954bf c79b8ca5 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-upstream-usb INFO: rcu detected stall in x64_sys_call
2024/10/02 04:17 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 9852d85ec9d4 ea2b66a6 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-upstream-usb INFO: rcu detected stall in x64_sys_call
2026/06/03 22:14 net f723ccaff2fb 234057e5 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce BUG: soft lockup in x64_sys_call
* Struck through repros no longer work on HEAD.