Date: Fri, 20 Jun 2003 12:21:02 -0400 (EDT) From: Robert Watson <rwatson@freebsd.org> To: Manfred Antar <null@pozo.com> Cc: current@freebsd.org Subject: Re: Current kernel Fatal Trap 12 Message-ID: <Pine.NEB.3.96L.1030620122006.23475A-100000@fledge.watson.org> In-Reply-To: <5.2.1.1.2.20030620085142.00a72ae8@pozo.com>
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If you have a version of the kernel in question on disk and with debugging symbols, could you attach gdb -k to it and send us the results of: l *0xc01f6212 That will provide a bit more information about where the panic is occuring. This is likely a NULL pointer dereference. Robert N M Watson FreeBSD Core Team, TrustedBSD Projects robert@fledge.watson.org Network Associates Laboratories On Fri, 20 Jun 2003, Manfred Antar wrote: > For the past week i have not been able to boot with current kernel. > The last kernel that works is from Sat June 14th. > When I build and try and boot a current kernel I get: > Fatal trap 12: page fault while in kernel mode > fault virtual address = 0x38 > fault code = supervisor read, page not present > instruction pointer = 0x8:0xc01f6212 > stack pointer = 0x10:0xc04b1e24 > frame pointer = 0x10:0xc04b1e24 > 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 = 0 (swapper) > trap number = 12 > panic: page fault > Uptime: 1s > > > Fatal trap 12: page fault while in kernel mode > fault virtual address = 0x38 > fault code = supervisor read, page not present > instruction pointer = 0x8:0xc01f6212 > stack pointer = 0x10:0xc04b1cec > frame pointer = 0x10:0xc04b1cec > 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 = 0 (swapper) > trap number = 12 > panic: page fault > Uptime: 1s > > This continues to scroll by many times and I can't get to the debugger. > The machine is i386 SMP dual pentium-pro overdrive processors. > Same thing happens with kernel configured as UNIprocessor. > > > > > ================================== > || null@pozo.com || > || Ph. (415) 681-6235 || > ================================== > > _______________________________________________ > freebsd-current@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-current > To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd.org" >
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