Re: [uml-devel] Kernel mode fault at addr 0x48965000, ip0x400e51a4

[stian@nixia.no]

> At 19:18 Uhr +0100 06.01.2004, BlaisorBlade wrote:
>
>>you need to type this before starting:
>>
>>(host gdb) handle SIGSEGV pass nostop noprint
>>(host gdb) handle SIGUSR1 pass nostop noprint
>
> When I type that, It hit no breakpoint, so I cant get any backtarce
>
> ..
>
> Starting system log daemon: syslogd.
> Starting kernel log daemon: klogd.
> Kernel panic: Kernel mode fault at addr 0x8814000, ip 0x400d93c4
>
> (no debugging symbols found)...(no debugging symbols found)...(no
> debugging symbols found)...
> Program exited normally.
> (gdb) bt
>
> Can you give am a step by sped advice /'m new in (kernel)debuging),
> the simple run with all brakpoints doesn't seem to help.
>
> regards
>
> Johannes

First it would be nice to have debug information, so you just don't get a
stack backtrace just with addresses and no names (make sure that gcc has
the -g when compiling and linking all parts of the kernel), and if you
can't set a working breakpoint on panic, make a dummy function panic
calls, and set breakpoint on that function.


Stian


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