Date: Mon, 25 Feb 2008 10:21:15 -0500 From: John Baldwin <jhb@freebsd.org> To: freebsd-amd64@freebsd.org Cc: freebsd-gnats-submit@freebsd.org, Eric Kingston <ericnk@esreco.net> Subject: Re: amd64/120956: FreeBSD 6.3 Release: Fatal trap 12: page fault while in kernel mode Message-ID: <200802251021.15510.jhb@freebsd.org> In-Reply-To: <200802220018.m1M0I1Pi056747@www.freebsd.org> References: <200802220018.m1M0I1Pi056747@www.freebsd.org>
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On Thursday 21 February 2008 07:18:01 pm Eric Kingston wrote: > >Number: 120956 > >Category: amd64 > >Synopsis: FreeBSD 6.3 Release: Fatal trap 12: page fault while in > > kernel mode Confidential: no > >Severity: critical > >Priority: high > >Responsible: freebsd-amd64 > >State: open > >Quarter: > >Keywords: > >Date-Required: > >Class: sw-bug > >Submitter-Id: current-users > >Arrival-Date: Fri Feb 22 00:30:02 UTC 2008 > >Closed-Date: > >Last-Modified: > >Originator: Eric Kingston > >Release: FreeBSD 6.3 Release > >Organization: > > Standard Industries > > >Environment: > > FreeBSD ifabgate.esreco.net 6.3-RELEASE FreeBSD 6.3-RELEASE #0: > .. > unable to execute a uname command as the kernel trap happens before it > fully boots > > >Description: > > After installing FreeBSD 6.3 Release amd64 on a Shuttle XPC SD30G2B, intel > 945GC + ICH7 chipset, Intel E6400 core 2 duo 2.13 Ghz, 1066 Mhz FSB > processor, then rebooting the following error occurs.... > > .. > SMP: AP CPU #1 Launched! > Trying to mount root from ufs:/dev/ad4s1a > kernel trap 12 with interrupts diabled > > Fatal trap 12: page fault while in kernel mode > cpuid = 1; apic id = 01 > fault virtual address = 0x58 > fault code = supervisor read data, page not present > instruction pointer = 0x8:0xffffffff804639ba > stack pointer = 0x10:0xffffffff94c9d4c0 > frame pointer = 0x10:0x0 > 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 = 1 (swapper) > trap number = 12 > panic: page fault > cpuid = 1 > > The system doesn't even finish booting. > > I might also add that I installed FreeBSD 6.2 amd64 on this system and > everything worked flawlessly, no problems at all. Can you add DDB to your kernel and get a stack trace from DDB when it panics? -- John Baldwin
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