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[syzbot] [bpf?] [net?] INFO: rcu detected stall in handle_softirqs | 1 (3) | 2024/05/11 11:34 |
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[syzbot] [bpf?] [net?] INFO: rcu detected stall in handle_softirqs | 1 (3) | 2024/05/11 11:34 |
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P5144 rcu: (detected by 1, t=10503 jiffies, g=11073, q=192 ncpus=2) task:syz-executor172 state:R running task stack:27056 pid:5144 tgid:5144 ppid:5099 flags:0x00004002 Call Trace: <IRQ> sched_show_task kernel/sched/core.c:9192 [inline] sched_show_task+0x42e/0x650 kernel/sched/core.c:9166 rcu_print_detail_task_stall_rnp kernel/rcu/tree_stall.h:262 [inline] print_other_cpu_stall kernel/rcu/tree_stall.h:637 [inline] check_cpu_stall kernel/rcu/tree_stall.h:796 [inline] rcu_pending kernel/rcu/tree.c:3934 [inline] rcu_sched_clock_irq+0x2613/0x3100 kernel/rcu/tree.c:2297 update_process_times+0x175/0x220 kernel/time/timer.c:2486 tick_sched_handle kernel/time/tick-sched.c:276 [inline] tick_nohz_handler+0x376/0x530 kernel/time/tick-sched.c:297 __run_hrtimer kernel/time/hrtimer.c:1692 [inline] __hrtimer_run_queues+0x657/0xcc0 kernel/time/hrtimer.c:1756 hrtimer_interrupt+0x31b/0x800 kernel/time/hrtimer.c:1818 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline] __sysvec_apic_timer_interrupt+0x10f/0x450 arch/x86/kernel/apic/apic.c:1049 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline] sysvec_apic_timer_interrupt+0x43/0xb0 arch/x86/kernel/apic/apic.c:1043 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:160 [inline] RIP: 0010:_raw_spin_unlock_irq+0x29/0x50 kernel/locking/spinlock.c:202 Code: 90 f3 0f 1e fa 53 48 8b 74 24 08 48 89 fb 48 83 c7 18 e8 6a 98 8c f6 48 89 df e8 c2 14 8d f6 e8 ed 98 b5 f6 fb bf 01 00 00 00 <e8> b2 4f 7e f6 65 8b 05 b3 88 24 75 85 c0 74 06 5b c3 cc cc cc cc RSP: 0018:ffffc90000a08d18 EFLAGS: 00000202 RAX: 000000000184d5fe RBX: ffff8880b95401d0 RCX: 1ffffffff1f3e269 RDX: 0000000000000000 RSI: ffffffff8b0cae00 RDI: 0000000000000001 RBP: ffff8880b9540210 R08: 0000000000000001 R09: 0000000000000001 R10: ffffffff8f9f55d7 R11: 0000000000000001 R12: dffffc0000000000 R13: 0000000000000001 R14: 0000000000000040 R15: ffff8880b95401b8 spin_unlock_irq include/linux/spinlock.h:401 [inline] rps_unlock_irq_enable net/core/dev.c:229 [inline] process_backlog+0x3e7/0x6f0 net/core/dev.c:6011 __napi_poll.constprop.0+0xb7/0x550 net/core/dev.c:6638 napi_poll net/core/dev.c:6707 [inline] net_rx_action+0x9ad/0xf10 net/core/dev.c:6822 handle_softirqs+0x216/0x8f0 kernel/softirq.c:554 do_softirq kernel/softirq.c:455 [inline] do_softirq+0xb2/0xf0 kernel/softirq.c:442 </IRQ> <TASK> __local_bh_enable_ip+0x100/0x120 kernel/softirq.c:382 local_bh_enable include/linux/bottom_half.h:33 [inline] bpf_test_run+0x335/0x9e0 net/bpf/test_run.c:426 bpf_prog_test_run_skb+0xb17/0x1db0 net/bpf/test_run.c:1058 bpf_prog_test_run kernel/bpf/syscall.c:4269 [inline] __sys_bpf+0xd56/0x4b40 kernel/bpf/syscall.c:5678 __do_sys_bpf kernel/bpf/syscall.c:5767 [inline] __se_sys_bpf kernel/bpf/syscall.c:5765 [inline] __x64_sys_bpf+0x78/0xc0 kernel/bpf/syscall.c:5765 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcf/0x260 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f2466eba819 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 19 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffc5f447668 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f2466eba819 RDX: 0000000000000050 RSI: 0000000020000080 RDI: 000000000000000a RBP: 0000000000000000 R08: 0000000100000000 R09: 0000000100000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 </TASK> rcu: rcu_preempt kthread starved for 10546 jiffies! g11073 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:28736 pid:16 tgid:16 ppid:2 flags:0x00004000 Call Trace: <TASK> context_switch kernel/sched/core.c:5409 [inline] __schedule+0xf15/0x5d00 kernel/sched/core.c:6746 __schedule_loop kernel/sched/core.c:6823 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6838 schedule_timeout+0x136/0x2a0 kernel/time/timer.c:2582 rcu_gp_fqs_loop+0x1eb/0xb00 kernel/rcu/tree.c:1663 rcu_gp_kthread+0x271/0x380 kernel/rcu/tree.c:1862 kthread+0x2c1/0x3a0 kernel/kthread.c:388 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 </TASK> rcu: Stack dump where RCU GP kthread last ran: CPU: 1 PID: 5144 Comm: syz-executor172 Not tainted 6.9.0-rc7-syzkaller-00008-gee5b455b0ada #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:160 [inline] RIP: 0010:_raw_spin_unlock_irq+0x29/0x50 kernel/locking/spinlock.c:202 Code: 90 f3 0f 1e fa 53 48 8b 74 24 08 48 89 fb 48 83 c7 18 e8 6a 98 8c f6 48 89 df e8 c2 14 8d f6 e8 ed 98 b5 f6 fb bf 01 00 00 00 <e8> b2 4f 7e f6 65 8b 05 b3 88 24 75 85 c0 74 06 5b c3 cc cc cc cc RSP: 0018:ffffc90000a08d18 EFLAGS: 00000202 RAX: 000000000184d5fe RBX: ffff8880b95401d0 RCX: 1ffffffff1f3e269 RDX: 0000000000000000 RSI: ffffffff8b0cae00 RDI: 0000000000000001 RBP: ffff8880b9540210 R08: 0000000000000001 R09: 0000000000000001 R10: ffffffff8f9f55d7 R11: 0000000000000001 R12: dffffc0000000000 R13: 0000000000000001 R14: 0000000000000040 R15: ffff8880b95401b8 FS: 00005555756a8380(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f2466f370f0 CR3: 000000007c110000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <IRQ> spin_unlock_irq include/linux/spinlock.h:401 [inline] rps_unlock_irq_enable net/core/dev.c:229 [inline] process_backlog+0x3e7/0x6f0 net/core/dev.c:6011 __napi_poll.constprop.0+0xb7/0x550 net/core/dev.c:6638 napi_poll net/core/dev.c:6707 [inline] net_rx_action+0x9ad/0xf10 net/core/dev.c:6822 handle_softirqs+0x216/0x8f0 kernel/softirq.c:554 do_softirq kernel/softirq.c:455 [inline] do_softirq+0xb2/0xf0 kernel/softirq.c:442 </IRQ> <TASK> __local_bh_enable_ip+0x100/0x120 kernel/softirq.c:382 local_bh_enable include/linux/bottom_half.h:33 [inline] bpf_test_run+0x335/0x9e0 net/bpf/test_run.c:426 bpf_prog_test_run_skb+0xb17/0x1db0 net/bpf/test_run.c:1058 bpf_prog_test_run kernel/bpf/syscall.c:4269 [inline] __sys_bpf+0xd56/0x4b40 kernel/bpf/syscall.c:5678 __do_sys_bpf kernel/bpf/syscall.c:5767 [inline] __se_sys_bpf kernel/bpf/syscall.c:5765 [inline] __x64_sys_bpf+0x78/0xc0 kernel/bpf/syscall.c:5765 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcf/0x260 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f2466eba819 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 19 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffc5f447668 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f2466eba819 RDX: 0000000000000050 RSI: 0000000020000080 RDI: 000000000000000a RBP: 0000000000000000 R08: 0000000100000000 R09: 0000000100000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 </TASK> sched: RT throttling activated
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2024/05/07 07:21 | upstream | ee5b455b0ada | c035c6de | .config | console log | report | syz | C | [disk image] [vmlinux] [kernel image] | ci-upstream-kasan-gce-selinux-root | INFO: rcu detected stall in handle_softirqs | |
2024/10/02 23:39 | upstream | f23aa4c0761a | a4c7fd36 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-kasan-gce-selinux-root | INFO: rcu detected stall in handle_softirqs | ||
2024/07/29 04:34 | upstream | 5437f30d3458 | 46eb10b7 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-kasan-gce-smack-root | INFO: rcu detected stall in handle_softirqs | ||
2024/07/27 20:22 | upstream | 3a7e02c040b1 | 46eb10b7 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-kasan-gce-smack-root | INFO: rcu detected stall in handle_softirqs | ||
2024/07/10 12:06 | upstream | 34afb82a3c67 | e7213be3 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-kasan-gce | INFO: rcu detected stall in handle_softirqs | ||
2024/07/05 18:55 | upstream | 661e504db04c | 2a40360c | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-kasan-gce | INFO: rcu detected stall in handle_softirqs | ||
2024/07/05 13:00 | upstream | 661e504db04c | 2a40360c | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-kasan-gce | INFO: rcu detected stall in handle_softirqs | ||
2024/06/23 21:53 | upstream | 7c16f0a4ed1c | edc5149a | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-kasan-gce-root | INFO: rcu detected stall in handle_softirqs | ||
2024/05/11 18:06 | upstream | cf87f46fd34d | 9026e142 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-kasan-gce | INFO: rcu detected stall in handle_softirqs | ||
2024/10/02 00:16 | net-next | 44badc908f2c | ea2b66a6 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-net-kasan-gce | INFO: rcu detected stall in handle_softirqs | ||
2024/08/01 19:08 | https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing | d483f034f032 | 1e9c4cf3 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-usb | INFO: rcu detected stall in handle_softirqs | ||
2024/07/31 14:41 | https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing | 8400291e289e | 6fde257d | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-usb | INFO: rcu detected stall in handle_softirqs | ||
2024/07/29 22:36 | https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing | 1722389b0d86 | 5187fc86 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-usb | INFO: rcu detected stall in handle_softirqs | ||
2024/07/29 20:05 | https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing | 1722389b0d86 | 5187fc86 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-usb | INFO: rcu detected stall in handle_softirqs | ||
2024/07/22 12:42 | https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing | 933069701c1b | df655b64 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-usb | INFO: rcu detected stall in handle_softirqs | ||
2024/07/20 21:44 | https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing | 3c3ff7be9729 | b88348e9 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-usb | INFO: rcu detected stall in handle_softirqs | ||
2024/07/20 08:04 | https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing | 3c3ff7be9729 | b88348e9 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-usb | INFO: rcu detected stall in handle_softirqs | ||
2024/07/20 06:54 | https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing | 3c3ff7be9729 | b88348e9 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-usb | INFO: rcu detected stall in handle_softirqs | ||
2024/07/19 22:54 | https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing | b72749301112 | 890ce4f3 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-usb | INFO: rcu detected stall in handle_softirqs | ||
2024/07/17 02:21 | https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing | b72749301112 | 215bec2d | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-usb | INFO: rcu detected stall in handle_softirqs | ||
2024/07/08 06:14 | https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing | 179264157bba | 2a40360c | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-usb | INFO: rcu detected stall in handle_softirqs | ||
2024/07/07 10:25 | https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing | 179264157bba | 2a40360c | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-usb | INFO: rcu detected stall in handle_softirqs | ||
2024/07/07 00:55 | https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing | 179264157bba | 2a40360c | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-usb | INFO: rcu detected stall in handle_softirqs | ||
2024/07/04 16:35 | https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing | 179264157bba | 3f2748a3 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-usb | INFO: rcu detected stall in handle_softirqs | ||
2024/06/30 09:07 | https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing | 2ea6d07efe53 | 757f06b1 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-usb | INFO: rcu detected stall in handle_softirqs | ||
2024/06/25 09:47 | https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing | 819984a0dd36 | 04bd2a30 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-usb | INFO: rcu detected stall in handle_softirqs | ||
2024/06/21 18:12 | https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing | 819984a0dd36 | edc5149a | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-usb | INFO: rcu detected stall in handle_softirqs |