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rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-.... } 3258 jiffies s: 5757 root: 0x1/. rcu: blocking rcu_node structures (internal RCU debug): Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 4783 Comm: syz.6.76 Not tainted 6.1.128-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 RIP: 0010:arch_static_branch arch/x86/include/asm/jump_label.h:27 [inline] RIP: 0010:static_key_false include/linux/jump_label.h:207 [inline] RIP: 0010:native_write_msr arch/x86/include/asm/msr.h:147 [inline] RIP: 0010:wrmsr arch/x86/include/asm/msr.h:254 [inline] RIP: 0010:native_apic_msr_write+0x35/0x50 arch/x86/include/asm/apic.h:206 Code: 74 2a 83 ff 30 74 25 eb 10 81 ff d0 00 00 00 74 1b 81 ff e0 00 00 00 74 13 c1 ef 04 81 c7 00 08 00 00 89 f9 89 f0 31 d2 0f 30 <66> 90 c3 89 f6 31 d2 e9 1f a4 34 03 66 2e 0f 1f 84 00 00 00 00 00 RSP: 0018:ffffc90000007320 EFLAGS: 00000046 RAX: 00000000000000f6 RBX: ffffffff8cda7b78 RCX: 000000000000083f RDX: 0000000000000000 RSI: 00000000000000f6 RDI: 000000000000083f RBP: ffff8880b8e3b8b0 R08: ffffffff84437d64 R09: fffff52000000e55 R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000 R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000 FS: 00007fe1a4e5b6c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b3191cff8 CR3: 000000007ace7000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <NMI> </NMI> <IRQ> arch_irq_work_raise+0x82/0xd0 arch/x86/kernel/irq_work.c:31 irq_work_queue_on+0x15c/0x290 kernel/irq_work.c:165 rcu_read_unlock_special+0x3c6/0x540 kernel/rcu/tree_plugin.h:675 __rcu_read_unlock+0x92/0x100 kernel/rcu/tree_plugin.h:426 rcu_read_unlock include/linux/rcupdate.h:823 [inline] __perf_event_output kernel/events/core.c:7717 [inline] perf_event_output_forward+0x2af/0x330 kernel/events/core.c:7726 __perf_event_overflow+0x45e/0x640 kernel/events/core.c:9472 perf_swevent_overflow kernel/events/core.c:9548 [inline] perf_swevent_event+0x4c5/0x550 kernel/events/core.c:9586 perf_tp_event+0x35a/0xc80 kernel/events/core.c:10005 perf_trace_run_bpf_submit+0xf7/0x1d0 kernel/events/core.c:9978 perf_trace_preemptirq_template+0x2d1/0x3d0 include/trace/events/preemptirq.h:14 trace_irq_enable_rcuidle+0xd5/0x140 include/trace/events/preemptirq.h:40 trace_hardirqs_on+0x24/0x40 kernel/trace/trace_preemptirq.c:44 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691 RIP: 0010:dst_destroy+0x0/0x300 net/core/dst.c:99 Code: 41 5d 41 5e 41 5f 5d c3 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 49 ff ff ff 4c 89 f7 e8 49 55 37 f9 e9 3c ff ff ff 0f 1f 40 00 <55> 41 57 41 56 41 55 41 54 53 48 83 ec 10 49 89 fc 48 bd 00 00 00 RSP: 0018:ffffc90000007bb8 EFLAGS: 00000293 RAX: ffffffff88aae329 RBX: ffff888059c02698 RCX: ffff888027f70000 RDX: 0000000000000100 RSI: ffffffff8b0c14c0 RDI: ffff888059c02640 RBP: ffffc90000007df0 R08: dffffc0000000000 R09: fffffbfff224a050 R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff1100b3804d4 R13: ffff888059c026a0 R14: ffffc90000007d00 R15: ffffffff88aae320 rcu_do_batch kernel/rcu/tree.c:2297 [inline] rcu_core+0xade/0x1820 kernel/rcu/tree.c:2557 handle_softirqs+0x2ee/0xa40 kernel/softirq.c:578 __do_softirq kernel/softirq.c:612 [inline] invoke_softirq kernel/softirq.c:452 [inline] __irq_exit_rcu+0x157/0x240 kernel/softirq.c:661 irq_exit_rcu+0x5/0x20 kernel/softirq.c:673 instr_sysvec_irq_work arch/x86/kernel/irq_work.c:17 [inline] sysvec_irq_work+0x9d/0xc0 arch/x86/kernel/irq_work.c:17 </IRQ> <TASK> asm_sysvec_irq_work+0x16/0x20 arch/x86/include/asm/idtentry.h:728 RIP: 0010:___slab_alloc+0x3a1/0x1270 mm/slub.c:3151 Code: 00 00 00 00 9c 8f 44 24 70 f7 44 24 70 00 02 00 00 48 8b 5c 24 08 0f 85 fd 02 00 00 f7 c5 00 02 00 00 74 01 fb 48 83 7b 18 00 <0f> 84 89 05 00 00 48 c7 44 24 70 00 00 00 00 9c 8f 44 24 70 48 8b RSP: 0018:ffffc900035f7b80 EFLAGS: 00000246 RAX: 6393da186021f900 RBX: ffff8880b8e41df0 RCX: ffffffff97357103 RDX: dffffc0000000000 RSI: ffffffff8b0c0340 RDI: ffffffff8b5e6980 RBP: 0000000000000246 R08: ffffffff81b64b7c R09: ffffed10171c6ad6 R10: 0000000000000000 R11: dffffc0000000001 R12: ffffffff81e16fbd R13: ffff888140009780 R14: ffffffff7fff0000 R15: 0000000000000000 __slab_alloc mm/slub.c:3279 [inline] slab_alloc_node mm/slub.c:3364 [inline] slab_alloc mm/slub.c:3406 [inline] __kmem_cache_alloc_lru mm/slub.c:3413 [inline] kmem_cache_alloc_lru+0x1a5/0x2d0 mm/slub.c:3429 __d_alloc+0x31/0x710 fs/dcache.c:1774 d_alloc_pseudo+0x19/0x70 fs/dcache.c:1904 alloc_file_pseudo+0x131/0x2f0 fs/file_table.c:265 sock_alloc_file+0xb4/0x240 net/socket.c:467 sock_map_fd net/socket.c:491 [inline] __sys_socket+0x1ca/0x3a0 net/socket.c:1679 __do_sys_socket net/socket.c:1684 [inline] __se_sys_socket net/socket.c:1682 [inline] __x64_sys_socket+0x76/0x80 net/socket.c:1682 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7fe1a3f8cde9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fe1a4e5b038 EFLAGS: 00000246 ORIG_RAX: 0000000000000029 RAX: ffffffffffffffda RBX: 00007fe1a41a5fa0 RCX: 00007fe1a3f8cde9 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000029 RBP: 00007fe1a400e2a0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fe1a41a5fa0 R15: 00007ffee8c568d8 </TASK>
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2025/02/09 12:41 | linux-6.1.y | 0cbb5f65e52f | ef44b750 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan-perf | INFO: rcu detected stall in sys_socket | ||
2025/01/09 01:01 | linux-6.1.y | 7dc732d24ff7 | f3558dbf | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan-perf | INFO: rcu detected stall in sys_socket |