Re: Fatal trap 12

From: Chris Readle (patterner_at_rocketmail.com)
Date: 10/16/03

  • Next message: Dinesh Nadarajah: "Howto find packages" 
    Date: Thu, 16 Oct 2003 07:55:28 -0700 (PDT)
To: freebsd-questions@freebsd.org

    I briefly tried RELENG_4 back when it was 4.9 RC1, and was getting hard
    locks when I exited X. Unfortunately, at the time I didn't really have
    time to troubleshoot it, so I rolled back to 4.8, which was only giving me
    Sig 11's when exiting KDE apps like konsole & knode. :)

    Perhaps this weekend, I'll try cvsuping back to -STABLE and see if that
    helps. On that subject, has anyone seen any issue with -STABLE where it
    just goes to a black screen on exiting X? As I recall, my nvidia driver
    also wrote an error in the X log along the lines of "Unable to destroy
    surface" or something similar.

    chris

    --- Mike Tancsa <mike@sentex.net> wrote:
    >
    > There are a few VM fixes that have gone into RELENG_4, thats where your
    > kernel is really panicing. If its an option for you, I would try
    > RELENG_4
    > rather than the security branch.
    >
    > ---Mike
    >
    > At 09:48 AM 16/10/2003, Chris Readle wrote:
    > >Got another one this morning. This time the only thing running was the
    > >make index && make readmes, and XFree86.
    > >
    > >Actually, they both may have finished by then, I started them up then
    > had
    > >to go to sleep, so I'm not entirely sure how far along it got in the
    > >process. I do know it was past the index and working on the readmes,
    > >though.
    > >
    > >/var/log/messages:
    > >Oct 16 01:26:37 creadle /kernel: Fatal trap 12: page fault while in
    > kernel
    > >mode
    > >Oct 16 01:26:37 creadle /kernel: fault virtual address = 0xfffffd9b
    > >Oct 16 01:26:37 creadle /kernel: fault code = supervisor
    > read,
    > >page not present
    > >Oct 16 01:26:37 creadle /kernel: instruction pointer =
    > 0x8:0xc022c1c8
    > >Oct 16 01:26:37 creadle /kernel: stack pointer =
    > 0x10:0xd2e2ee4c
    > >Oct 16 01:26:37 creadle /kernel: frame pointer =
    > 0x10:0xd2e2ee54
    > >Oct 16 01:26:37 creadle /kernel: code segment = base 0x0,
    > limit
    > >0xfffff, type 0x1b
    > >Oct 16 01:26:37 creadle /kernel: = DPL 0, pres 1, def32 1, gran 1
    > >Oct 16 01:26:37 creadle /kernel: processor eflags = interrupt
    > >enabled, resume, IOPL = 0
    > >Oct 16 01:26:37 creadle /kernel: current process = 53504
    > >(sh)
    > >Oct 16 01:26:37 creadle /kernel: interrupt mask = none
    > >Oct 16 01:26:37 creadle /kernel: trap number = 12
    > >Oct 16 01:26:37 creadle /kernel: panic: page fault
    > >Oct 16 01:26:37 creadle /kernel:
    > >
    > >nm -n:
    > >[chris@creadle chris]$ nm -n /kernel | grep c022c1c8
    > >[chris@creadle chris]$ nm -n /kernel | grep c022c1c
    > >[chris@creadle chris]$ nm -n /kernel | grep c022c1
    > >c022c19c T vm_page_lookup
    > >c022c1f8 T vm_page_rename
    > >
    > >chris
    > >
    > >--- Chris Readle <patterner@rocketmail.com> wrote:
    > > > Hi all,
    > > >
    > > > New to FBSD, and in the process of moving my Linux/Windows PC to
    > > > FBSD/Windows.
    > > >
    > > > I got two spontaneous reboots last night (the first times it
    > happened)
    > > > and
    > > > I got fatal trap 12s in /var/log/messages each time. I wasn't doing
    > > > anything too heavy, just a make index && make readmes on my ports,
    > > > listening to some music through XMMS and browsing the web via
    > Mozilla.
    > > >
    > > > I searched the archives and the FAQ. I haven't built a debugging
    > kernel
    > > > yet, but I thought I would post the info I have in the hopes that
    > > > someone
    > > > might be able to help.
    > > >
    > > > I did do an nm - n on the kernel, however.
    > > >
    > > > uname -a:
    > > > FreeBSD creadle.oc.cox.net 4.8-RELEASE-p13 FreeBSD 4.8-RELEASE-p13
    > #4:
    > > > Wed
    > > > Oct 15 08:55:21 PDT 2003
    > > > chris@creadle.oc.cox.net:/usr/obj/usr/src/sys/CREADLE i386
    > > >
    > > > /var/log/messages:
    > > > Oct 14 21:45:23 creadle /kernel: Fatal trap 12: page fault while in
    > > > kernel
    > > > mode
    > > > Oct 14 21:45:23 creadle /kernel: fault virtual address = 0xbfca02c8
    > > > Oct 14 21:45:23 creadle /kernel: fault code = supervisor
    > > > read,
    > > > page not present
    > > > Oct 14 21:45:23 creadle /kernel: instruction pointer =
    > 0x8:0xc028fe83
    > > > Oct 14 21:45:23 creadle /kernel: stack pointer =
    > > > 0x10:0xd2cfbcf8
    > > > Oct 14 21:45:23 creadle /kernel: frame pointer =
    > > > 0x10:0xd2cfbd08
    > > > Oct 14 21:45:23 creadle /kernel: code segment = base 0x0,
    > > > limit
    > > > 0xfffff, type 0x1b
    > > > Oct 14 21:45:23 creadle /kernel: = DPL 0, pres 1, def32 1, gran 1
    > > > Oct 14 21:45:23 creadle /kernel: processor eflags = interrupt
    > > > enabled, resume, IOPL = 0
    > > > Oct 14 21:45:23 creadle /kernel: current process =
    > 73961
    > > > (sh)
    > > > Oct 14 21:45:23 creadle /kernel: interrupt mask = net tty
    > bio
    > > > cam
    > > > Oct 14 21:45:23 creadle /kernel: trap number = 12
    > > > Oct 14 21:45:23 creadle /kernel: panic: page fault
    > > >
    > > > nm -n:
    > > > creadle# nm -n /kernel | grep c028fe8
    > > > c028fe88 T pmap_ts_referenced
    > > > creadle# nm -n /kernel | grep c028fe
    > > > c028fe7c T pmap_phys_address
    > > > c028fe88 T pmap_ts_referenced
    > > >
    > > > I did two because I thought it was odd that the first one came up
    > with a
    > > > higher address than the actual pointer.
    > > >
    > > > Any good suggestions?
    > > >
    > > > chris
    > > >
    > > >
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