Date: Mon, 17 May 1999 16:05:00 -0500 From: Bob Willcox <bob@luke.pmr.com> To: Luoqi Chen <luoqi@watermarkgroup.com> Cc: current list <freebsd-current@freebsd.org> Subject: Re: panic: page fault (apparently caused by mount_mfs) Message-ID: <19990517160500.E30936@luke.pmr.com> In-Reply-To: <199905172034.QAA22167@lor.watermarkgroup.com>; from Luoqi Chen on Mon, May 17, 1999 at 04:34:50PM -0400 References: <199905172034.QAA22167@lor.watermarkgroup.com>
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On Mon, May 17, 1999 at 04:34:50PM -0400, Luoqi Chen wrote:
> > Hi,
> >
> > I have been getting a panic lately with every -current kernel that I
> > have built for the past week or so (-current cvsupped daily). Even the
> > GENERIC kernel panics. It is occuring when the mount for a /tmp mfs
> > filesystem is attempted. If I boot an old kernel from 5/11 or remove
> > the fstab entry for the mfs file system the system boots up okay. My
> > fstab entry for this is:
> >
> > /dev/da0s1b /tmp mfs rw,nosuid,-s=102400 0 0
> >
> > and the panic messages are:
> >
> > Fatal trap 12: pagefault while in kernel mode
> > fault virtual address = 0x9d334e68
> > fault code = Supervisor read, page not present
> > instruction pointer = 0x8:0xc0185cb0
> > stack pointer = 0x10:0xc98ad84
> > frame pointer = 0x10:0xc98adb0
> > 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 = 40 (mount_mfs)
> > interrupt mask =
> > trap number = 12
> > panic: page fault
> >
> >
> > Any ideas on what may be wrong?
> >
> > Thanks,
> > Bob
> >
> > --
> > Bob Willcox The man who follows the crowd will usually get no
> > bob@luke.pmr.com further than the crowd. The man who walks alone is
> > Austin, TX likely to find himself in places no one has ever
> > been. -- Alan Ashley-Pitt
> >
> How about recompile mfs kld module and try again?
I have been making world each time after cvsupping so I would expect the
mfs kld module to be getting rebuilt and it appears to be up-to-date:
-r-xr-xr-x 1 root wheel 12778 May 17 13:34 /modules/mfs.ko
Also, both my custom kernel config file and the GENERIC config file
include "options MFS" so mfs should not be getting loaded, right?
Thanks,
Bob
>
> -lq
--
Bob Willcox The man who follows the crowd will usually get no
bob@luke.pmr.com further than the crowd. The man who walks alone is
Austin, TX likely to find himself in places no one has ever
been. -- Alan Ashley-Pitt
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