Attachment 217787 Details for Bug 249147 – Trap screen sample

Trap screen sample

Fatal_trap_18_on_head_after_r364744.log (text/plain), 1.60 KB, created by Tomoaki AOKI on 2020-09-06 08:55:11 UTC

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Creator: Tomoaki AOKI

Created: 2020-09-06 08:55:11 UTC

Size: 1.60 KB

patch

obsolete

>Fatal trap 18: integer divide fault while in kernel mode
>cpuid = 2; apic id = 02
>instruction pointer     = 0x20:0xffffffff82bfa320
>stack pointer           = 0x28:0xfffffe00e20c6900
>frame pointer           = 0x28:0xfffffe00e20c6960
>code segment            = base 0x0, limit 0xfffff, type 0x1b
>                        = DPL 0, pres 1, long 1, def32 0, gran 1
>processor eflags        = interrupt enabled, resume, IOPL = 0
>current process         = 27 (vdev_open)
>trap number             = 18
>panic: integer divide fault
>cpuid = 2
>time = 16
>KDB: stack backtrace:
>db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xfffffe00e20c6610
>vpanic() at vpanic+0x182/frame fffffe00e20c6660
>panic() at panic+0x43/frame fffffe00e20c66c0
>trap_fatal() at trap_fatal+0x387/frame fffffe00e20c6720
>trap() at trap+0x8e/frame fffffe00e20c6830
>calltrap() at calltrap+0x8/frame fffffe00e20c6830
>--- trap 0x12, rip = 0xffffffff82bfa320, rsp = 0xfffffe00e20c6900, rbp = 0xfffffe00e20c6960 ---
>zio_wait() at zio_wait+0x60/frame 0xfffffe00e20c6960
>vdev_open() at vdev_open+0x74d/frame 0xfffffe00e20c69c0
>vdev_open_child() at vdev_open_child+0x1e/frame 0xfffffe00e20c69e0
>taskq_run() at taskq_run+0x1f/frame 0xfffffe00e20c6a00
>taskqueue_run_locked() at taskqueue_run_locked+0x181/frame 0xfffffe00e20c6a80
>taskqueue_thread_loop() at taskqueue_thread_loop+0x118/frame 0xfffffe00e20c6ab0
>fork_exit() at fork_exit+0x7d/frame 0xfffffe00e20c6af0
>fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe00e20c6af0
>--- trap 0, rip = 0, rsp = 0, rbp = 0 ---
>KDB: enter: panic
>[ thread pid 27 tid 100570 ]
>Stopped at      kdb_enter+0x37: movq    $0,0x1091556(%rip)
>db>

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Attachments on bug 249147: 217787