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Date:      Thu, 13 Mar 1997 14:26:40 -0800 (PST)
From:      "Steven G. Kargl" <sgk@troutmask.apl.washington.edu>
To:        hsu@freefall.freebsd.org (Jeffrey Hsu)
Cc:        bde@freefall.freebsd.org, current@freefall.freebsd.org
Subject:   Re: union mounts seem to work
Message-ID:  <199703132226.OAA07965@troutmask.apl.washington.edu>
In-Reply-To: <199703131941.LAA16704@freefall.freebsd.org> from Jeffrey Hsu at "Mar 13, 97 11:41:22 am"

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According to Jeffrey Hsu:
> Have you tried rebooting your computer single-user and manually running
> fsck?  :-)
> 

You won't happen to be getting a "Fatal trap 12" when you reboot?

root[0]: shutdown -r now

gives

Fatal trap 12: page fault while in kernel mode
fault virtual address      = 0x8
fault code                 = supervisor read, page not present
instruction pointer        = 0x8:0xf013fd15
stack pointer              = 0x10:0xefbffe5c
frame pointer              = 0x10:0xefbffe60
code segment               = base 0x0, limit 0xfffff, type 0x1b
                           = DPL 0, pres 1, def 32 1, gran 1
processor eflags           = interrupt enabled, resume, IOPL=0
current process            = 1862 (reboot)
interrupt mask             =
kernel: type 12 trap, code = 0
stopped at _spec_strategy+0x15:  movl 0x8(%eax), %eax


The mounted filesystems are not unmounted before the trap and I get
dropped into the debugger.  A hard reset shows all filesystems have
some damage.

Kernel and make world from sources circa 970312, 1000 PST.

-- 
Steve



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