Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported |
---|---|---|---|---|---|---|
INFO: rcu detected stall in d_walk fs | C | 25680 | 2115d | 2177d |
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Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported |
---|---|---|---|---|---|---|
INFO: rcu detected stall in d_walk fs | C | 25680 | 2115d | 2177d |
Title | Replies (including bot) | Last reply |
---|---|---|
INFO: rcu detected stall in shrink_dcache_parent | 1 (3) | 2018/04/14 07:02 |
EXT4-fs (sda1): re-mounted. Opts: EXT4-fs (sda1): re-mounted. Opts: EXT4-fs (sda1): re-mounted. Opts: EXT4-fs (sda1): re-mounted. Opts: EXT4-fs (sda1): re-mounted. Opts: INFO: rcu_sched self-detected stall on CPU 0-...!: (124998 ticks this GP) idle=59a/1/4611686018427387906 softirq=99006/99006 fqs=0 (t=125000 jiffies g=50394 c=50393 q=32) rcu_sched kthread starved for 125000 jiffies! g50394 c50393 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x0 ->cpu=1 RCU grace-period kthread stack dump: rcu_sched R running task 23896 9 2 0x80000000 Call Trace: context_switch kernel/sched/core.c:2859 [inline] __schedule+0x801/0x1e30 kernel/sched/core.c:3501 schedule+0xef/0x430 kernel/sched/core.c:3545 schedule_timeout+0x138/0x240 kernel/time/timer.c:1801 rcu_gp_kthread+0x6b5/0x1940 kernel/rcu/tree.c:2231 kthread+0x345/0x410 kernel/kthread.c:240 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:412 NMI backtrace for cpu 0 CPU: 0 PID: 4536 Comm: syz-executor904 Not tainted 4.17.0-rc6+ #70 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: <IRQ> __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1b9/0x294 lib/dump_stack.c:113 nmi_cpu_backtrace.cold.4+0x19/0xce lib/nmi_backtrace.c:103 nmi_trigger_cpumask_backtrace+0x151/0x192 lib/nmi_backtrace.c:62 arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38 trigger_single_cpu_backtrace include/linux/nmi.h:156 [inline] rcu_dump_cpu_stacks+0x175/0x1c2 kernel/rcu/tree.c:1376 print_cpu_stall kernel/rcu/tree.c:1525 [inline] check_cpu_stall.isra.61.cold.80+0x36c/0x59a kernel/rcu/tree.c:1593 __rcu_pending kernel/rcu/tree.c:3356 [inline] rcu_pending kernel/rcu/tree.c:3401 [inline] rcu_check_callbacks+0x21b/0xad0 kernel/rcu/tree.c:2763 update_process_times+0x2d/0x70 kernel/time/timer.c:1636 tick_sched_handle+0x9f/0x180 kernel/time/tick-sched.c:164 tick_sched_timer+0x45/0x130 kernel/time/tick-sched.c:1274 __run_hrtimer kernel/time/hrtimer.c:1398 [inline] __hrtimer_run_queues+0x3e3/0x10a0 kernel/time/hrtimer.c:1460 hrtimer_interrupt+0x2f3/0x750 kernel/time/hrtimer.c:1518 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1025 [inline] smp_apic_timer_interrupt+0x15d/0x710 arch/x86/kernel/apic/apic.c:1050 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:863 </IRQ> RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:783 [inline] RIP: 0010:seqcount_lockdep_reader_access include/linux/seqlock.h:83 [inline] RIP: 0010:read_seqcount_begin include/linux/seqlock.h:164 [inline] RIP: 0010:read_seqbegin include/linux/seqlock.h:433 [inline] RIP: 0010:read_seqbegin_or_lock include/linux/seqlock.h:529 [inline] RIP: 0010:d_walk+0x840/0xc80 fs/dcache.c:1248 RSP: 0018:ffff8801ae0ff9f8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 RAX: ffff8801acfb6340 RBX: 0000000000000293 RCX: 1ffff100359f6d7d RDX: 0000000000000000 RSI: ffffffff81c6691b RDI: 0000000000000293 RBP: ffff8801ae0ffb78 R08: ffff8801acfb6b78 R09: 0000000000000006 R10: ffff8801acfb6340 R11: 0000000000000000 R12: 0000000000000200 R13: dffffc0000000000 R14: 1ffff10035c1ff82 R15: ffff8801ae0ffb50 shrink_dcache_parent+0x179/0x230 fs/dcache.c:1486 vfs_rmdir+0x202/0x470 fs/namei.c:3850 do_rmdir+0x523/0x610 fs/namei.c:3911 __do_sys_rmdir fs/namei.c:3929 [inline] __se_sys_rmdir fs/namei.c:3927 [inline] __x64_sys_rmdir+0x36/0x40 fs/namei.c:3927 do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x441837 RSP: 002b:00007ffc2d96b798 EFLAGS: 00000207 ORIG_RAX: 0000000000000054 RAX: ffffffffffffffda RBX: 0000000000000065 RCX: 0000000000441837 RDX: 0000000000000000 RSI: 00000000006cd858 RDI: 00007ffc2d96c880 RBP: 00007ffc2d96c880 R08: 0000000000000000 R09: 0000000000000001 R10: 0000000000000006 R11: 0000000000000207 R12: 00000000016928a0 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2018/05/28 03:57 | upstream | 861d9dd37526 | f48c20b8 | .config | console log | report | syz | C | ci-upstream-kasan-gce-root | |||
2018/04/13 16:40 | upstream | 16e205cf42da | 0a0c5db6 | .config | console log | report | syz | C | ci-upstream-kasan-gce-root | |||
2018/05/28 16:05 | upstream | b04e217704b7 | f48c20b8 | .config | console log | report | ci-upstream-kasan-gce-root | |||||
2018/04/12 22:56 | upstream | c17b0aadb7d8 | eb2295de | .config | console log | report | ci-upstream-kasan-gce-root | |||||
2018/06/13 22:58 | bpf-next | 75d4e704fa8d | 27c5f59f | .config | console log | report | ci-upstream-bpf-next-kasan-gce | |||||
2018/06/13 21:35 | bpf-next | 75d4e704fa8d | 27c5f59f | .config | console log | report | ci-upstream-bpf-next-kasan-gce | |||||
2018/06/13 20:23 | bpf-next | 75d4e704fa8d | 27c5f59f | .config | console log | report | ci-upstream-bpf-next-kasan-gce | |||||
2018/06/13 20:00 | bpf-next | 75d4e704fa8d | 27c5f59f | .config | console log | report | ci-upstream-bpf-next-kasan-gce | |||||
2018/06/13 18:29 | bpf-next | 75d4e704fa8d | 27c5f59f | .config | console log | report | ci-upstream-bpf-next-kasan-gce | |||||
2018/06/13 17:09 | bpf-next | 75d4e704fa8d | 27c5f59f | .config | console log | report | ci-upstream-bpf-next-kasan-gce | |||||
2018/06/13 16:08 | bpf-next | 75d4e704fa8d | 27c5f59f | .config | console log | report | ci-upstream-bpf-next-kasan-gce | |||||
2018/06/13 14:57 | bpf-next | 75d4e704fa8d | 27c5f59f | .config | console log | report | ci-upstream-bpf-next-kasan-gce | |||||
2018/06/13 13:15 | bpf-next | 75d4e704fa8d | 27c5f59f | .config | console log | report | ci-upstream-bpf-next-kasan-gce | |||||
2018/06/13 12:11 | bpf-next | 75d4e704fa8d | 27c5f59f | .config | console log | report | ci-upstream-bpf-next-kasan-gce | |||||
2018/06/13 11:11 | bpf-next | 75d4e704fa8d | 27c5f59f | .config | console log | report | ci-upstream-bpf-next-kasan-gce | |||||
2018/06/13 09:40 | bpf-next | 75d4e704fa8d | 27c5f59f | .config | console log | report | ci-upstream-bpf-next-kasan-gce | |||||
2018/06/13 08:51 | bpf-next | 75d4e704fa8d | 27c5f59f | .config | console log | report | ci-upstream-bpf-next-kasan-gce | |||||
2018/06/13 07:45 | bpf-next | 75d4e704fa8d | 27c5f59f | .config | console log | report | ci-upstream-bpf-next-kasan-gce | |||||
2018/06/13 06:36 | bpf-next | 75d4e704fa8d | 27c5f59f | .config | console log | report | ci-upstream-bpf-next-kasan-gce | |||||
2018/06/13 05:36 | bpf-next | 75d4e704fa8d | 6dcbc435 | .config | console log | report | ci-upstream-bpf-next-kasan-gce | |||||
2018/06/13 04:08 | bpf-next | 75d4e704fa8d | 6dcbc435 | .config | console log | report | ci-upstream-bpf-next-kasan-gce | |||||
2018/06/13 03:06 | bpf-next | 75d4e704fa8d | 6dcbc435 | .config | console log | report | ci-upstream-bpf-next-kasan-gce | |||||
2018/06/13 03:01 | bpf-next | 75d4e704fa8d | 6dcbc435 | .config | console log | report | ci-upstream-bpf-next-kasan-gce | |||||
2018/06/13 02:00 | bpf-next | 75d4e704fa8d | 6dcbc435 | .config | console log | report | ci-upstream-bpf-next-kasan-gce | |||||
2018/06/13 00:43 | bpf-next | 75d4e704fa8d | 6dcbc435 | .config | console log | report | ci-upstream-bpf-next-kasan-gce | |||||
2018/06/12 23:42 | bpf-next | 75d4e704fa8d | 6dcbc435 | .config | console log | report | ci-upstream-bpf-next-kasan-gce | |||||
2018/06/12 23:17 | bpf-next | 75d4e704fa8d | 6dcbc435 | .config | console log | report | ci-upstream-bpf-next-kasan-gce | |||||
2018/06/12 22:08 | bpf-next | 75d4e704fa8d | 6dcbc435 | .config | console log | report | ci-upstream-bpf-next-kasan-gce | |||||
2018/06/12 20:47 | bpf-next | 75d4e704fa8d | 6dcbc435 | .config | console log | report | ci-upstream-bpf-next-kasan-gce | |||||
2018/06/12 19:40 | bpf-next | 75d4e704fa8d | 6dcbc435 | .config | console log | report | ci-upstream-bpf-next-kasan-gce | |||||
2018/06/12 19:12 | bpf-next | 75d4e704fa8d | 6dcbc435 | .config | console log | report | ci-upstream-bpf-next-kasan-gce | |||||
2018/06/12 18:04 | bpf-next | 75d4e704fa8d | 6dcbc435 | .config | console log | report | ci-upstream-bpf-next-kasan-gce | |||||
2018/06/12 16:22 | bpf-next | 75d4e704fa8d | 112eec79 | .config | console log | report | ci-upstream-bpf-next-kasan-gce | |||||
2018/06/12 14:33 | bpf-next | 75d4e704fa8d | 112eec79 | .config | console log | report | ci-upstream-bpf-next-kasan-gce | |||||
2018/06/12 13:16 | bpf-next | 75d4e704fa8d | 112eec79 | .config | console log | report | ci-upstream-bpf-next-kasan-gce | |||||
2018/06/12 12:14 | bpf-next | 75d4e704fa8d | 112eec79 | .config | console log | report | ci-upstream-bpf-next-kasan-gce | |||||
2018/06/12 11:11 | bpf-next | 75d4e704fa8d | 112eec79 | .config | console log | report | ci-upstream-bpf-next-kasan-gce | |||||
2018/06/12 09:41 | bpf-next | 75d4e704fa8d | 112eec79 | .config | console log | report | ci-upstream-bpf-next-kasan-gce | |||||
2018/06/12 08:25 | bpf-next | 75d4e704fa8d | 112eec79 | .config | console log | report | ci-upstream-bpf-next-kasan-gce | |||||
2018/06/12 07:24 | bpf-next | 75d4e704fa8d | 112eec79 | .config | console log | report | ci-upstream-bpf-next-kasan-gce | |||||
2018/06/12 07:06 | bpf-next | 75d4e704fa8d | 112eec79 | .config | console log | report | ci-upstream-bpf-next-kasan-gce | |||||
2018/06/12 05:46 | bpf-next | 75d4e704fa8d | 112eec79 | .config | console log | report | ci-upstream-bpf-next-kasan-gce | |||||
2018/06/12 04:44 | bpf-next | 75d4e704fa8d | 112eec79 | .config | console log | report | ci-upstream-bpf-next-kasan-gce | |||||
2018/06/12 03:12 | bpf-next | 75d4e704fa8d | 112eec79 | .config | console log | report | ci-upstream-bpf-next-kasan-gce | |||||
2018/06/12 01:48 | bpf-next | 75d4e704fa8d | 112eec79 | .config | console log | report | ci-upstream-bpf-next-kasan-gce |