Date: Wed, 19 Nov 1997 00:54:01 +0000 From: Brian Somers <brian@awfulhak.org> To: Jonathan Chen <jonc@pinnacle.co.nz> Cc: freebsd-questions@freebsd.org Subject: Re: Kernel panic in 2.2.2R with ppp Message-ID: <199711190054.AAA05051@awfulhak.demon.co.uk> In-Reply-To: Your message of "Wed, 19 Nov 1997 11:47:15 %2B1300." <Pine.SGI.3.96.971119113333.6961A-100000@tui.pinnacle.co.nz>
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Wow, I'm impressed :-) This is the first time I've seen ppp cause a panic :-) 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. > Hi, > > I've got a measly '386 with 8Mb running running FreeBSD 2.2.2 and > ppp (latest version off http://www.freebsd.org/~brian/) -auto -alias > onto a small network, which works fine most of the time. However, there > have been 2 kernel panics (in the 4 months of usage), which I suspect > happens under when memory runs very low. I'd have expected ppp to die > instead of O/S, though. > > I intend to upgrade to 2.2.5-R, when my CD arrives (it sure is taking > a long time..), but I thought I'd bring this to the attention of > freebsd-questions. > > kakapo kernel log messages: > > > > > > 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 > > > > syncing disks... 15 15 14 11 6 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 giving up > > -- > Jonathan Chen <jonc@pinnacle.co.nz> | "Vini, vidi, velcro... > | I came, I saw, I stuck around" > -- Brian <brian@Awfulhak.org>, <brian@FreeBSD.org>, <bri@OpenBSD.org> <http://www.Awfulhak.org>; Don't _EVER_ lose your sense of humour....
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