Date: Wed, 24 Nov 2004 13:31:01 -0800 From: Randy Bush <randy@psg.com> To: Robert Watson <rwatson@freebsd.org> Cc: freebsd-current@freebsd.org Subject: Re: Random panics with 5.3-REL, SMP Message-ID: <16804.64917.872924.733444@ran.psg.com> References: <20041123182254.GB10721@ninthgate.net> <Pine.NEB.3.96L.1041124152633.98085Y-100000@fledge.watson.org>
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> - Using a serial console to the box, you can reliably gather information
> without the core dump mechanism working.
i caught one, but the rest happened and reboot's beastie wiped the console
Fatal trap 12: page fault while in kernel mode
cpuid = 0; apic id = 00
fault virtual address = 0x41959c25
fault code = supervisor write, page not present
instruction pointer = 0x8:0xc04e813a
stack pointer = 0x10:0xe784d978
frame pointer = 0x10:0xe784d994
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 = 68301 (sshd)
trap number = 12
panic: page fault
cpuid = 0
boot() called on cpu#0
Uptime: 9h29m10s
Cannot dump. No dump device defined.
Automatic reboot in 15 seconds - press a key on the console to abort
Rebooting...
cpu_reset called on cpu#0
cpu_reset: Stopping other CPUs
since then, i installed a kernel with debugging symbols (blush), but
have yet to get a usable savecore and the beastie got me too.
> - "Random panics" could mean "A lot of seemingly different panics
> happening with relatively frequency", or it might mean "A few similar
> panics, happening at random intervals".
as i can't really characterize the causes, let's just say they seem
random to me.
i have not reported this stuff, as i had no good data. but since
hogan whined, i thought i should sing the harmony.
randy
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