Date: Wed, 19 Nov 1997 10:12:04 -0800 (PST) From: Doug White <dwhite@gdi.uoregon.edu> To: Brian Somers <brian@awfulhak.org> Cc: Jonathan Chen <jonc@pinnacle.co.nz>, freebsd-questions@FreeBSD.ORG Subject: Re: Kernel panic in 2.2.2R with ppp Message-ID: <Pine.BSF.3.96.971119100750.3360F-100000@gdi.uoregon.edu> In-Reply-To: <199711190054.AAA05051@awfulhak.demon.co.uk>
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On Wed, 19 Nov 1997, Brian Somers wrote: > Seriously, as you already suspect, it can't really be ppp that's > causing the problem. I'd suspect a memory problem. Is the > instruction pointer the same each time ? If so, the only way to > diagnose this is to rebuild your kernel with symbols (-g), wait for > it to crash again, and try to find out where the instruction pointer > is pointing. Whihc of these should I be looking at? Using `nm /kernel | grep xxx', the fault virtual addr doesn't point to anything but the instruction pointer is in the middle of the msdosfs code. > > > Fatal trap 12: page fault while in kernel mode > > > fault virtual address = 0xf057a000 > > > fault code = supervisor read, page not present > > > instruction pointer = 0x8:0xf013d087 > > > stack pointer = 0x10:0xefbffd80 > > > frame pointer = 0x10:0xefbffd9c > > > 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 = 24356 (ppp) > > > interrupt mask = > > > panic: page fault Doug White | University of Oregon Internet: dwhite@resnet.uoregon.edu | Residence Networking Assistant http://gladstone.uoregon.edu/~dwhite | Computer Science Major
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