Date: Wed, 24 Nov 2004 23:36:02 -0800 (PST) From: Doug White <dwhite@gumbysoft.com> To: Randy Bush <randy@psg.com> Cc: Robert Watson <rwatson@freebsd.org> Subject: Re: Random panics with 5.3-REL, SMP Message-ID: <20041124232820.J2006@carver.gumbysoft.com> In-Reply-To: <16804.64917.872924.733444@ran.psg.com> References: <20041123182254.GB10721@ninthgate.net> <Pine.NEB.3.96L.1041124152633.98085Y-100000@fledge.watson.org> <16804.64917.872924.733444@ran.psg.com>
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On Wed, 24 Nov 2004, Randy Bush wrote: > > - 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 Thats a wierd address. If I didn't know better, I'd say that there's a MSB flip in there (4+8=c in hex). A backtrace would be interesting to look at. > 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. Looks like you just need to set 'dumpdev' in rc.conf. What is your boot device and swap partition(s)? > 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. Set 'beastie_disable="YES"' in /boot/loader.conf to stop that from happening. :) if you turn on session logging in your comm program it should capture the output before it scrolls off. -- Doug White | FreeBSD: The Power to Serve dwhite@gumbysoft.com | www.FreeBSD.org
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