Re: [uml-devel] How to avoid stopping at gdb's "Program received signal SIGSEGV, Segmentation fault"?

["Peter Teoh" <htmldeveloper@gmail.com>]

On Thu, Nov 6, 2008 at 9:20 PM, Samuel Korpi <strontianite@gmail.com> wrote:
> On Thu, Nov 6, 2008 at 12:45 PM, Peter Teoh <htmldeveloper@gmail.com> wrote:
>> When I run gdb ./linux (my UML-compiled kernel):
>>
>> (gdb) run ubda=/mnt/hd1/download/FedoraCore5-x86-root_fs mem=128M
>> The program being debugged has been started already.
>> Start it from the beginning? (y or n) y
>> Starting program: /mnt/hd0/download/linux-2.6-latest/uml/linux
>> ubda=/mnt/hd1/download/FedoraCore5-x86-root_fs mem=128M
>> Locating the bottom of the address space ...
>> Program received signal SIGSEGV, Segmentation fault.
>> 0x080664ff in page_ok (page=<value optimized out>) at
>> /mnt/hd0/download/linux-2.6-latest/arch/um/os-Linux/sys-i386/task_size.c:31
>> 31                      n = *address;
>>
>> The flow keep stopping at the following message:
>>
>> Program received signal SIGTRAP, Trace/breakpoint trap.
>>
>> And I have to "next" many many times....the execution flow continue as
>> per normal.   But I would like to ignore the breakpoint trap, how?
>>
>
> Try giving the following commands to gdb before starting UML:
>
> handle SIGSEGV pass nostop noprint
> handle SIGUSR1 pass nostop noprint
>
> Hope it helps,
>
> Samuel Korpi
>

thanks....that worked!!!


-- 
Regards,
Peter Teoh

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