[RELENG_5 panic] Fatal trap 12: page fault while in kernel mode

From: Wilkinson, Alex (alex.wilkinson_at_dsto.defence.gov.au)
Date: 12/22/04

  • Next message: Scott Long: "Re: BIND9 performance issues with SMP" 
    Date: Wed, 22 Dec 2004 11:50:46 +1030
To: freebsd-current@freebsd.org

    upon exec'ing xmms.

        kernel trap 12 with interrupts disabled
        Fatal trap 12: page fault while in kernel mode
        fault virtual address = 0x24
        fault code = supervisor read, page not present
        instruction pointer = 0x8:0xc0521eed
        stack pointer = 0x10:0xe5186c38
        frame pointer = 0x10:0xe5186c6c
        code segment = base 0x0, limit 0xfffff, type 0x1b
                                = DPL 0, pres 1, def32 1, gran 1
        processor eflags = resume, IOPL = 0
        current process = 35 (swi5: clock sio)
        [thread 100031]
        Stopped at turnstile_wait+0x269: movl 0x24(%eax),%eax
        
        db> show pcpu
        cpuid = 0
        curthread = 0xc26b8190: pid 35 "swi5: clock sio"
        curpcb = 0xe5186da0
        fpcurthread = none
        idlethread = 0xc26644b0: pid 11 "idle"
        APIC ID = 0
        currentldt = 0x28
        db> tr
        turnstile_wait(0,c06f5ec0,c2b334b0,0,e5186cd4) at turnstile_wait+0x269
        _mtx_lock_sleep(c06f5ec0,c26b8190,0,0,0) at _mtx_lock_sleep+0x81
        softclock(0,0,0,0,c0685f86) at softclock+0x3b0
        ithread_loop(c26d0300,e5186d48,e5186d48,c0685c67,31e) at
        ithread_loop+0xb7
        fork_exit(c04e3db0,c26d0300,e5186d48) at fork_exit+0x64
        fork_trampoline() at fork_trampoline+0x8
        --- trap 0x1, eip = 0, esp = 0xe5186d7c, ebp = 0 ---
        db>

     - aW
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