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Date:      Thu, 07 Feb 2036 07:39:56 -0800 (PST)
From:      Simon Shapiro <shimon@simon-shapiro.org>
To:        Kevin Day <toasty@home.dragondata.com>
Cc:        freebsd-questions@FreeBSD.org, freebsd-current@FreeBSD.org, (Penisoara Adrian) <ady@warpnet.ro>
Subject:   Re: Fatal trap 12 & debugging info ??
Message-ID:  <XFMail.360207073956.shimon@simon-shapiro.org>
In-Reply-To: <199801072019.OAA18158@home.dragondata.com>

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On 07-Jan-98 Kevin Day wrote:
>> Hi,
>> 
>>  For quite a while I'm bugged by sudden panics/reboots (all of them are
>> 'fatal trap 12'); here it is the last one I had (hand rewritten):
>> 
>> ============================================================
>> 
>> Fatal trap 12: page fault while in kernel mode
>> mp_lock = 00000002; cpuid = 0; lapic.id = 00000000
>> fault virtual address   = 0x0
>> fault code              = supervisor read, page not present
>> instruction pointer     = 0x8:0xf01a9273
>> stack pointer           = 0x10:0xf49cbe48
>> frame pointer           = 0x10:0xf49cbe54
>> code segment            = base 0x0, limit 0xfffff, type 0x1b
>>                         = DPL 0, pres 1, def32 1, gran 1
>> processor eflags        = interrupt enabled, resume, IOPL = 0
>> current process         = 1594 (cron)
>> interrupt mask          = net tty bio cam  <- SMP:XXX
>> trap number             = 12
>> panic: page fault
>> mp_lock = 00000002; cpuid = 0; lapic.id = 00000000
>> boot called on cpu#0
>> 
>> syncing disks...
>> 
> 
> I've had about 5 panics about exactly the same....
> 
> A trace shows free, execve, syscall, xsyscall then the debugger locks up
> before showing any more...

Yup.  Only mine locks up on mp_lock = 01000001 and (obviously) CPU 1.

----------


Sincerely Yours, 

Simon Shapiro
Shimon@Simon-Shapiro.ORG                      Voice:   503.799.2313



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