Re: Debug kernel with gdb using kdump

["M. Mohan Kumar" <mohan@xxxxxxxxxx>]

On Fri, Dec 10, 2010 at 09:18:50PM +0530, Chandan12 K wrote:
> 
> I think you can generate on your own. Load a crash kernel using kexec -l <> ;
> and insert a kernel panic via echo c > /proc/sysrq-trigger
> 

For loading kdump kernels you need to use kexec -p <vmlinux>

> After that once the new kernel is loaded you can find the vmcore of the crashed
> kernel at /dev/vmcore, /dev/oldmem.

/proc/vmcore is the core file.


> From:       Ridouan Edarazi <ridor93@xxxxxxxxxxx>
> To:         <fastboot@xxxxxxxxxxxxxx>, <utility@xxxxxxxxxx>
> Date:       12/10/2010 09:11 PM
> Subject:     Debug kernel with gdb  using kdump
> Sent by:    fastboot-bounces@xxxxxxxxxxxxxxxxxxxxxxxxxx
> 
> 
> âââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ
> 
> 
> 
> Hi,
> 
> Can anyone send me a file core(crash dump) (image of kernel crashed)  to use
> with GDB please.
> 
> Thanks._______________________________________________
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