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| Date | Name | Commit | Repro | Result |
|---|---|---|---|---|
| 2024/10/20 | linux-5.15.y (ToT) | 584a40a22cb9 | C | [report] INFO: rcu detected stall in syscall_enter_from_user_mode |
| 2023/12/24 | upstream (ToT) | 861deac3b092 | C | [report] INFO: rcu detected stall in corrupted |
| 2024/10/20 | upstream (ToT) | 715ca9dd687f | C | Didn't crash |
| Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
|---|---|---|---|---|---|---|---|---|---|
| linux-6.1 | INFO: rcu detected stall in sys_openat | 3 | 440d | 473d | 0/3 | auto-obsoleted due to no activity on 2023/12/16 21:24 | |||
| upstream | INFO: rcu detected stall in sys_openat exfat | 5 | 2139d | 2217d | 0/28 | closed as dup on 2018/10/27 13:02 | |||
| linux-6.1 | INFO: rcu detected stall in sys_openat (2) origin:upstream | C | 8 | 2d08h | 253d | 0/3 | upstream: reported C repro on 2024/03/13 11:37 | ||
| upstream | INFO: rcu detected stall in sys_openat (3) mm | C | error | 243 | 32m | 445d | 0/28 | upstream: reported C repro on 2023/09/03 11:10 | |
| upstream | INFO: rcu detected stall in sys_openat (2) kernfs | 8 | 1021d | 1233d | 0/28 | closed as invalid on 2022/02/08 09:50 | |||
| android-5-15 | BUG: soft lockup in sys_openat (2) origin:lts | C | error | 5 | 72d | 122d | 0/2 | upstream: reported C repro on 2024/07/22 19:41 | |
| android-5-15 | BUG: soft lockup in sys_openat | 21 | 172d | 228d | 0/2 | auto-obsoleted due to no activity on 2024/07/21 23:03 |
| Created | Duration | User | Patch | Repo | Result |
|---|---|---|---|---|---|
| 2024/04/21 19:24 | 1h43m | bisect fix | linux-5.15.y | OK (0) job log log | |
| 2024/03/02 18:30 | 1h52m | bisect fix | linux-5.15.y | OK (0) job log log | |
| 2024/01/23 07:09 | 1h10m | bisect fix | linux-5.15.y | OK (0) job log log |
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P3534/1:b..l (detected by 0, t=10503 jiffies, g=3629, q=22) task:syz-executor288 state:R running task stack:24984 pid: 3534 ppid: 3526 flags:0x00004002 Call Trace: <TASK> context_switch kernel/sched/core.c:5030 [inline] __schedule+0x12c4/0x45b0 kernel/sched/core.c:6376 preempt_schedule_irq+0xf7/0x1c0 kernel/sched/core.c:6780 irqentry_exit+0x53/0x80 kernel/entry/common.c:426 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:638 RIP: 0010:lock_acquire+0x252/0x4f0 kernel/locking/lockdep.c:5627 Code: 2b 00 74 08 4c 89 f7 e8 dc 5c 67 00 f6 44 24 61 02 0f 85 84 01 00 00 41 f7 c7 00 02 00 00 74 01 fb 48 c7 44 24 40 0e 36 e0 45 <4b> c7 44 25 00 00 00 00 00 43 c7 44 25 09 00 00 00 00 43 c7 44 25 RSP: 0018:ffffc90002ce7680 EFLAGS: 00000206 RAX: 0000000000000001 RBX: 1ffff9200059cedc RCX: 1ffff9200059ce7c RDX: dffffc0000000000 RSI: ffffffff8a8b2220 RDI: ffffffff8ad88080 RBP: ffffc90002ce77e0 R08: dffffc0000000000 R09: fffffbfff1f79e19 R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff9200059ced8 R13: dffffc0000000000 R14: ffffc90002ce76e0 R15: 0000000000000246 rcu_lock_acquire+0x2a/0x30 include/linux/rcupdate.h:269 rcu_read_lock include/linux/rcupdate.h:696 [inline] is_bpf_text_address+0x1d/0x260 kernel/bpf/core.c:721 kernel_text_address kernel/extable.c:151 [inline] __kernel_text_address+0x94/0x100 kernel/extable.c:105 unwind_get_return_address+0x49/0x80 arch/x86/kernel/unwind_orc.c:323 arch_stack_walk+0xf3/0x140 arch/x86/kernel/stacktrace.c:26 stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:38 [inline] kasan_set_track mm/kasan/common.c:46 [inline] set_alloc_info mm/kasan/common.c:434 [inline] __kasan_slab_alloc+0x8e/0xc0 mm/kasan/common.c:467 kasan_slab_alloc include/linux/kasan.h:254 [inline] slab_post_alloc_hook+0x53/0x380 mm/slab.h:519 slab_alloc_node mm/slub.c:3220 [inline] slab_alloc mm/slub.c:3228 [inline] kmem_cache_alloc+0xf3/0x280 mm/slub.c:3233 getname_flags+0xb8/0x4e0 fs/namei.c:138 do_sys_openat2+0xd2/0x500 fs/open.c:1205 do_sys_open fs/open.c:1227 [inline] __do_sys_openat fs/open.c:1243 [inline] __se_sys_openat fs/open.c:1238 [inline] __x64_sys_openat+0x243/0x290 fs/open.c:1238 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7f9828cf0de0 RSP: 002b:00007ffeae9cd320 EFLAGS: 00000293 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 0000000000080001 RCX: 00007f9828cf0de0 RDX: 0000000000080001 RSI: 00007f9828d49180 RDI: 00000000ffffff9c RBP: 00007f9828d49180 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 00007ffeae9cd3c0 R13: 0000000000000002 R14: 00007ffeae9cd900 R15: 00007ffeae9cd8f0 </TASK> rcu: rcu_preempt kthread starved for 10545 jiffies! g3629 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->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:27000 pid: 15 ppid: 2 flags:0x00004000 Call Trace: <TASK> context_switch kernel/sched/core.c:5030 [inline] __schedule+0x12c4/0x45b0 kernel/sched/core.c:6376 schedule+0x11b/0x1f0 kernel/sched/core.c:6459 schedule_timeout+0x1b9/0x300 kernel/time/timer.c:1884 rcu_gp_fqs_loop+0x2bf/0x1080 kernel/rcu/tree.c:1972 rcu_gp_kthread+0xa4/0x360 kernel/rcu/tree.c:2145 kthread+0x3f6/0x4f0 kernel/kthread.c:319 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298 </TASK> rcu: Stack dump where RCU GP kthread last ran: NMI backtrace for cpu 0 CPU: 0 PID: 3556 Comm: syz-executor288 Not tainted 5.15.145-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 Call Trace: <IRQ> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106 nmi_cpu_backtrace+0x46a/0x4a0 lib/nmi_backtrace.c:111 nmi_trigger_cpumask_backtrace+0x181/0x2a0 lib/nmi_backtrace.c:62 trigger_single_cpu_backtrace include/linux/nmi.h:166 [inline] rcu_check_gp_kthread_starvation+0x1d2/0x240 kernel/rcu/tree_stall.h:487 print_other_cpu_stall+0x137a/0x14d0 kernel/rcu/tree_stall.h:592 check_cpu_stall kernel/rcu/tree_stall.h:745 [inline] rcu_pending kernel/rcu/tree.c:3932 [inline] rcu_sched_clock_irq+0xa38/0x1150 kernel/rcu/tree.c:2619 update_process_times+0x196/0x200 kernel/time/timer.c:1788 tick_sched_handle kernel/time/tick-sched.c:254 [inline] tick_sched_timer+0x386/0x550 kernel/time/tick-sched.c:1473 __run_hrtimer kernel/time/hrtimer.c:1685 [inline] __hrtimer_run_queues+0x55b/0xcf0 kernel/time/hrtimer.c:1749 hrtimer_interrupt+0x392/0x980 kernel/time/hrtimer.c:1811 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1085 [inline] __sysvec_apic_timer_interrupt+0x139/0x470 arch/x86/kernel/apic/apic.c:1102 sysvec_apic_timer_interrupt+0x8c/0xb0 arch/x86/kernel/apic/apic.c:1096 </IRQ> <TASK> asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:638 RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:169 [inline] RIP: 0010:_raw_spin_unlock_irq+0x25/0x40 kernel/locking/spinlock.c:202 Code: d1 7e f6 ff 90 53 48 89 fb 48 83 c7 18 48 8b 74 24 08 e8 2e 2a 3d f7 48 89 df e8 06 7e 3e f7 e8 51 28 61 f7 fb bf 01 00 00 00 <e8> 66 ba 31 f7 65 8b 05 d7 f5 dc 75 85 c0 74 02 5b c3 e8 64 0d db RSP: 0018:ffffc90002d87bc0 EFLAGS: 00000282 RAX: 04f009d321ee4200 RBX: ffff888079354a00 RCX: ffffffff913c6f03 RDX: dffffc0000000000 RSI: ffffffff8a8b0f80 RDI: 0000000000000001 RBP: 0000000000000000 R08: ffffffff8186a260 R09: ffffed100f26a941 R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000021 R13: dffffc0000000000 R14: ffff888079354e98 R15: ffff888079354a00 spin_unlock_irq include/linux/spinlock.h:413 [inline] get_signal+0x13ee/0x14e0 kernel/signal.c:2892 arch_do_signal_or_restart+0xc3/0x1890 arch/x86/kernel/signal.c:867 handle_signal_work kernel/entry/common.c:148 [inline] exit_to_user_mode_loop+0x97/0x130 kernel/entry/common.c:172 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:208 __syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline] syscall_exit_to_user_mode+0x5d/0x250 kernel/entry/common.c:301 do_syscall_64+0x49/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7f9828cf1e79 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffeae9cd888 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 0000000000000003 RCX: 00007f9828cf1e79 RDX: 000000002006b000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00000000000f4240 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007ffeae9cd900 R15: 00007ffeae9cd8f0 </TASK> sched: RT throttling activated
| Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2023/12/23 21:45 | linux-5.15.y | d93fa2c78854 | fb427a07 | .config | console log | report | syz | C | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan | INFO: rcu detected stall in sys_openat | |
| 2024/11/12 22:47 | linux-5.15.y | 3c17fc483905 | 62026c85 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan | INFO: rcu detected stall in sys_openat | ||
| 2024/10/21 14:06 | linux-5.15.y | 584a40a22cb9 | f1e4447c | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan | INFO: rcu detected stall in sys_openat | ||
| 2024/10/17 08:08 | linux-5.15.y | 3a5928702e71 | 666f77ed | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan | INFO: rcu detected stall in sys_openat | ||
| 2024/10/11 03:53 | linux-5.15.y | 3a5928702e71 | 8fbfc0c8 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan-perf | INFO: rcu detected stall in sys_openat | ||
| 2024/10/05 13:16 | linux-5.15.y | 3a5928702e71 | d7906eff | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan | INFO: rcu detected stall in sys_openat | ||
| 2024/09/29 02:48 | linux-5.15.y | 3a5928702e71 | ba29ff75 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan-perf | INFO: rcu detected stall in sys_openat | ||
| 2024/09/07 03:48 | linux-5.15.y | 14e468424d3e | 9750182a | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan | INFO: rcu detected stall in sys_openat | ||
| 2024/08/17 10:26 | linux-5.15.y | 7e89efd3ae1c | dbc93b08 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan | INFO: rcu detected stall in sys_openat | ||
| 2024/08/14 21:24 | linux-5.15.y | 7e89efd3ae1c | e6b88e20 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan | INFO: rcu detected stall in sys_openat | ||
| 2024/07/04 04:15 | linux-5.15.y | 4878aadf2d15 | f76a75f3 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan | INFO: rcu detected stall in sys_openat | ||
| 2024/06/06 12:38 | linux-5.15.y | c61bd26ae81a | 121701b6 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan | INFO: rcu detected stall in sys_openat | ||
| 2024/05/18 06:30 | linux-5.15.y | 83655231580b | c0f1611a | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan | INFO: rcu detected stall in sys_openat | ||
| 2024/04/26 01:01 | linux-5.15.y | c52b9710c83d | 8bdc0f22 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan-perf | INFO: rcu detected stall in sys_openat | ||
| 2024/03/22 08:13 | linux-5.15.y | b95c01af2113 | 7a239ce7 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan | INFO: rcu detected stall in sys_openat | ||
| 2023/12/05 19:39 | linux-5.15.y | 9b91d36ba301 | 858d62d1 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan | INFO: rcu detected stall in sys_openat | ||
| 2023/11/28 14:31 | linux-5.15.y | 2a910f4af54d | 9fe51b7c | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan | INFO: rcu detected stall in sys_openat | ||
| 2023/10/22 11:46 | linux-5.15.y | 00c03985402e | 361b23dc | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan-perf | INFO: rcu detected stall in sys_openat | ||
| 2024/08/14 21:50 | linux-5.15.y | 7e89efd3ae1c | e6b88e20 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan-arm64 | INFO: rcu detected stall in sys_openat | ||
| 2024/07/05 15:49 | linux-5.15.y | f45bea23c39c | 2a40360c | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan-arm64 | INFO: rcu detected stall in sys_openat | ||
| 2023/10/28 08:20 | linux-5.15.y | 12952a23a5da | 3c418d72 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan-arm64 | INFO: rcu detected stall in sys_openat | ||
| 2023/08/26 11:34 | linux-5.15.y | f6f7927ac664 | 7ba13a15 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan | INFO: rcu detected stall in sys_openat | ||
| 2023/06/19 20:51 | linux-5.15.y | 471e639e59d1 | d521bc56 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan | INFO: rcu detected stall in sys_openat |