Re: Panic in g_up (bg_fsck/cdparanoia interaction issues?)
From: Brian Fundakowski Feldman (green_at_freebsd.org)
Date: 07/01/04
- Previous message: bugghy: "Re: Bus error (core dumped) problem"
- In reply to: Damian Gerow: "Panic in g_up (bg_fsck/cdparanoia interaction issues?)"
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Date: Thu, 1 Jul 2004 14:57:52 -0400 To: current@freebsd.org
On Thu, Jul 01, 2004 at 01:00:15PM -0400, Damian Gerow wrote:
> After a crash and reboot, I start ripping the latter half of the CD,
> trying to reproduce the panic:
>
> % cdparanoia -Z -B "7-14[3:21.14]"
>
> It got 3/4 of the way through track 13 before a panic. Note that bg_fsck
> has finished processing ad1s1d (/home), and is now working on ad1s1e
> (/usr). I am writing to ad1s1d:
>
> Fatal trap 12 = page fault while in kernel mode
> cpuid = 0; apic id = 00
>
> fault virtual address = 0xa00000a
> fault code = supervisor read, page not present
> instruction pointer = 0x8:0xc067b104
> stack pointer = 0x10:0xd4293b98
> frame pointer = 0x10:0xd4293ba8
> code segment = base 0xa0, limit 0xfffff, type 0x1b
> = DPL 0, pres 1, dev32 1, gran 1
> processor eflags = interrupt enabled, resume, IOPL = 0
> current process = 3 (g_up)
> kernel: type 12 trap, code=0
> Stopped at handle_allocindir_partdone+0x40: testb $0x2,0xa(%ecx)
> db> panic
It seems like aip->ai_indirdep became 0xa000000 somehow. It would be
interesting to print out the whole *aip from gdb if you can get this
to happen again and get a crashdump.
(Referencing src/sys/ufs/ffs/ffs_softdep.c:handle_allocindir_partdone())
-- Brian Fundakowski Feldman \'[ FreeBSD ]''''''''''\ <> green@FreeBSD.org \ The Power to Serve! \ Opinions expressed are my own. \,,,,,,,,,,,,,,,,,,,,,,\ _______________________________________________ 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"
- Previous message: bugghy: "Re: Bus error (core dumped) problem"
- In reply to: Damian Gerow: "Panic in g_up (bg_fsck/cdparanoia interaction issues?)"
- Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]
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