Crash During FreeBSD compilation has left system unbootable

[Kris Anderson]

--- Paul Wilson <paulalexwilson at gmail.com> wrote:

> While working on a FreeBSD modification, during
> compiling it, the system
> hung completely.
> It was actually during the 'make install' stage,
> make had finished by this
> point.
> I had just added 'device atapicam' to my config file
> also (i doubt that's
> relevant tho?).
> 
> Upon reboot, none of my back-up kernels now boot.
> When I boot the half
> compiled
> kernel I get:
> 
> -------------------------
> When loading required module 'pci'
> int = 000 .... err = 0.... efl = 000....
> [etc...]
> 
> BTX Halted.
> -------------------------
> 
> When trying to boot my back up kernels, I get this
> error straight away:
> 
> --------------------------
> Fatal Trap 18: integer divide fault while in kernel
> mode.
> 
> intruction pointer = 0x20 : 0xc064f37a
> stack pointer       = 0x28 : 0xc0c20c84
> frame pointer      = 0x28 : 0xc0c20c94
> code segment    = base 0x0, limit 0xfffff, type 0x1b
>                            = DPL, pres1, def32
> 
> processor eflags = interrupt enabled, resume, IOPL =
> 0
> current process   = 0()
> [thread pid 0 tid 0]
> Stopped at link_elf_lookup_symbol+0x16: divl 0x54
> (%ebx), % eax
> 
> db> trace
> Tracing pid 0 tid 0 td 0xc09322c0
> link_elf_lookup_symbol(c2275c00, c2255a60, c0c20cc0,
> c2255a60, 1c) at
> link_elf_lookup_symbol 0x56
> 
> link_elf_lookup_set(c2275c00, c0874da6, c0c20d4c,
> c0c20d50,0) at
> link_elf_lookup_set+0x56
> 
> link_file_lookup_set(c2275c00, c0874da6, c0c20d4c,
> c0c20d50,0) at
> link_file_lookup_set+0x54
> 
> linker_preload(0, c1ec00, c1e000,0,c0445255) at
> linker_preload + 0c1c3
> 
> mi_startup() at mi-startup + 0x96
> 
> begin() at begin +0x2c
> 
> db>
> --------------------------
> 
> I'd greatly appreciate if anyone can tell me if I
> can recover from this
> problem or if it's completely lost.
> 
> Thanks in advance,
> Paul
None of your kernels?
Found this in the handbook -
http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig-trouble.html

You might also want to see if you have a rescue disk
handy, the worst case you can do a reinstall of just
the kernel items and their sources.

Hope that helps.

~mr. anderson

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