Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | INFO: rcu detected stall in do_mas_munmap kernel | 3 | 647d | 709d | 0/28 | auto-obsoleted due to no activity on 2023/04/29 23:21 |
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Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | INFO: rcu detected stall in do_mas_munmap kernel | 3 | 647d | 709d | 0/28 | auto-obsoleted due to no activity on 2023/04/29 23:21 |
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P16176/1:b..l (detected by 0, t=10502 jiffies, g=96957, q=423 ncpus=2) task:dhcpcd-run-hook state:R running task stack:22456 pid:16176 ppid:3306 flags:0x00004000 Call Trace: <TASK> context_switch kernel/sched/core.c:5241 [inline] __schedule+0x143f/0x4570 kernel/sched/core.c:6558 preempt_schedule_irq+0xf7/0x1c0 kernel/sched/core.c:6870 irqentry_exit+0x53/0x80 kernel/entry/common.c:439 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:653 RIP: 0010:debug_lockdep_rcu_enabled+0x25/0x30 kernel/rcu/update.c:281 Code: cc cc cc cc cc 31 c0 83 3d 67 49 f3 03 00 74 1d 83 3d f2 7c f3 03 00 74 14 65 48 8b 0d 04 be 5b 75 31 c0 83 b9 dc 0a 00 00 00 <0f> 94 c0 c3 cc cc cc cc cc cc cc 48 8b 3c 24 e8 57 fb ff ff 66 90 RSP: 0018:ffffc900057173b8 EFLAGS: 00000246 RAX: 0000000000000000 RBX: ffff88802866d4b8 RCX: ffff88804b861dc0 RDX: 0000000000000000 RSI: 000000000000000e RDI: 0000000000000006 RBP: ffffc900057175b0 R08: ffffffff8a9dbd86 R09: ffffffff8a9dbc0b R10: 0000000000000003 R11: ffff88804b861dc0 R12: 1ffff92000ae2e97 R13: ffffc900057174b8 R14: ffff88801db46900 R15: ffff88807e61ee58 mt_slot lib/maple_tree.c:814 [inline] mas_slot lib/maple_tree.c:847 [inline] mt_validate_nulls lib/maple_tree.c:7187 [inline] mt_validate+0x4fe9/0x5ad0 lib/maple_tree.c:7243 validate_mm_mt+0x165/0x670 mm/mmap.c:295 __split_vma+0x32/0x530 mm/mmap.c:2344 do_mas_align_munmap+0x953/0x15f0 mm/mmap.c:2491 do_mas_munmap+0x246/0x2b0 mm/mmap.c:2640 mmap_region+0x8e6/0x1fa0 mm/mmap.c:2688 do_mmap+0x8c5/0xf60 mm/mmap.c:1425 vm_mmap_pgoff+0x1ca/0x2d0 mm/util.c:520 ksys_mmap_pgoff+0x4f5/0x6d0 mm/mmap.c:1471 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: 0033:0x7f60339f6b74 RSP: 002b:00007ffcd0c36d68 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 RAX: ffffffffffffffda RBX: 00007ffcd0c36de0 RCX: 00007f60339f6b74 RDX: 0000000000000001 RSI: 0000000000025000 RDI: 00007f6033707000 RBP: 00007ffcd0c37100 R08: 0000000000000003 R09: 000000000002e000 R10: 0000000000000812 R11: 0000000000000246 R12: 00007f60339da570 R13: 00007ffcd0c37188 R14: 000000000002d9c6 R15: 0000000000000000 </TASK> rcu: rcu_preempt kthread starved for 10188 jiffies! g96957 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:26712 pid:16 ppid:2 flags:0x00004000 Call Trace: <TASK> context_switch kernel/sched/core.c:5241 [inline] __schedule+0x143f/0x4570 kernel/sched/core.c:6558 schedule+0xbf/0x180 kernel/sched/core.c:6634 schedule_timeout+0x1b9/0x300 kernel/time/timer.c:1965 rcu_gp_fqs_loop+0x2d2/0x1150 kernel/rcu/tree.c:1706 rcu_gp_kthread+0xa3/0x3b0 kernel/rcu/tree.c:1905 kthread+0x28d/0x320 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 </TASK> rcu: Stack dump where RCU GP kthread last ran: Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 skipped: idling at native_safe_halt arch/x86/include/asm/irqflags.h:51 [inline] NMI backtrace for cpu 1 skipped: idling at arch_safe_halt arch/x86/include/asm/irqflags.h:89 [inline] NMI backtrace for cpu 1 skipped: idling at acpi_safe_halt drivers/acpi/processor_idle.c:111 [inline] NMI backtrace for cpu 1 skipped: idling at acpi_idle_do_entry+0x10f/0x340 drivers/acpi/processor_idle.c:567
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2024/10/08 11:55 | linux-6.1.y | aa4cd140bba5 | 402f1df0 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: rcu detected stall in do_mas_munmap | ||
2024/10/03 01:03 | linux-6.1.y | aa4cd140bba5 | 02f9582a | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: rcu detected stall in do_mas_munmap | ||
2024/09/17 07:53 | linux-6.1.y | 5f55cad62cc9 | c673ca06 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: rcu detected stall in do_mas_munmap | ||
2024/08/17 18:14 | linux-6.1.y | 117ac406ba90 | dbc93b08 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: rcu detected stall in do_mas_munmap | ||
2024/08/10 01:27 | linux-6.1.y | 48d525b0e463 | a83d9288 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: rcu detected stall in do_mas_munmap | ||
2024/07/27 20:31 | linux-6.1.y | c1cec4dad96b | 46eb10b7 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: rcu detected stall in do_mas_munmap | ||
2024/07/27 15:04 | linux-6.1.y | c1cec4dad96b | 46eb10b7 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: rcu detected stall in do_mas_munmap | ||
2024/07/24 06:43 | linux-6.1.y | 9b3f9a5b12dc | 57b2edb1 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: rcu detected stall in do_mas_munmap | ||
2024/07/19 16:51 | linux-6.1.y | 9b3f9a5b12dc | 890ce4f3 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: rcu detected stall in do_mas_munmap | ||
2024/06/20 02:35 | linux-6.1.y | eb44d83053d6 | 41b7e219 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: rcu detected stall in do_mas_munmap | ||
2024/06/19 17:08 | linux-6.1.y | eb44d83053d6 | 41b7e219 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: rcu detected stall in do_mas_munmap | ||
2024/06/08 04:48 | linux-6.1.y | 88690811da69 | 82c05ab8 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: rcu detected stall in do_mas_munmap |