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rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P8312 (detected by 0, t=10502 jiffies, g=149769, q=24) syz-executor.0 R running task 27064 8312 9826 0x00004006 Call Trace: <IRQ> sched_show_task kernel/sched/core.c:5954 [inline] sched_show_task.cold+0x2ee/0x35d kernel/sched/core.c:5929 rcu_print_detail_task_stall_rnp kernel/rcu/tree_stall.h:190 [inline] print_other_cpu_stall kernel/rcu/tree_stall.h:398 [inline] check_cpu_stall kernel/rcu/tree_stall.h:538 [inline] rcu_pending kernel/rcu/tree.c:2827 [inline] rcu_sched_clock_irq.cold+0xbc0/0xc0d kernel/rcu/tree.c:2271 update_process_times+0x2d/0x70 kernel/time/timer.c:1726 tick_sched_handle+0xa2/0x190 kernel/time/tick-sched.c:171 tick_sched_timer+0x53/0x140 kernel/time/tick-sched.c:1314 __run_hrtimer kernel/time/hrtimer.c:1517 [inline] __hrtimer_run_queues+0x364/0xe40 kernel/time/hrtimer.c:1579 hrtimer_interrupt+0x314/0x770 kernel/time/hrtimer.c:1641 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1110 [inline] smp_apic_timer_interrupt+0x160/0x610 arch/x86/kernel/apic/apic.c:1135 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:829 </IRQ> RIP: 0010:should_resched arch/x86/include/asm/preempt.h:102 [inline] RIP: 0010:__local_bh_enable_ip+0x18e/0x270 kernel/softirq.c:196 Code: 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 0f 85 df 00 00 00 48 83 3d 27 ee 4b 08 00 0f 84 8f 00 00 00 fb 66 0f 1f 44 00 00 <65> 8b 05 f3 d8 ba 7e 85 c0 74 7f 5b 41 5c 41 5d 5d c3 80 3d 9c 72 RSP: 0000:ffffc900016a7c48 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13 RAX: 1ffffffff1326675 RBX: 0000000000000201 RCX: 0000000000000000 RDX: dffffc0000000000 RSI: ffff88805ba04898 RDI: ffff88805ba04894 RBP: ffffc900016a7c60 R08: ffff88805ba04000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff86340424 R13: ffff88805ba04000 R14: 0000000000e94bca R15: 0000000000000000 __raw_spin_unlock_bh include/linux/spinlock_api_smp.h:176 [inline] _raw_spin_unlock_bh+0x2c/0x30 kernel/locking/spinlock.c:207 sock_hash_free+0x2e4/0x540 net/core/sock_map.c:872 map_create kernel/bpf/syscall.c:721 [inline] __do_sys_bpf+0x2671/0x3810 kernel/bpf/syscall.c:3012 __se_sys_bpf kernel/bpf/syscall.c:2989 [inline] __x64_sys_bpf+0x73/0xb0 kernel/bpf/syscall.c:2989 do_syscall_64+0xfa/0x790 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45b349 Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fceff181c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007fceff1826d4 RCX: 000000000045b349 RDX: 000000000000003c RSI: 0000000020000000 RDI: 0000000000000000 RBP: 000000000075c070 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 000000000000005b R14: 00000000004c1ab8 R15: 000000000075c07c
| Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2020/01/25 14:36 | bpf | 08dc225d8868 | 2e95ab33 | .config | console log | report | ci-upstream-bpf-kasan-gce | |||||
| 2020/01/16 07:40 | bpf | 0af2ffc93a4b | f9b69507 | .config | console log | report | ci-upstream-bpf-kasan-gce | |||||
| 2020/02/24 12:59 | linux-next | bdc5461b23ca | d801cb02 | .config | console log | report | ci-upstream-linux-next-kasan-gce-root |