From: "Samuel Korpi" <strontianite@gmail.com>
To: Peter Teoh <htmldeveloper@gmail.com>
Cc: uml-devel <user-mode-linux-devel@lists.sourceforge.net>
Subject: Re: [uml-devel] How to avoid stopping at gdb's "Program received signal SIGSEGV, Segmentation fault"?
Date: Thu, 6 Nov 2008 15:20:51 +0200 [thread overview]
Message-ID: <dfed62190811060520i6e51b844l4600222304bab23@mail.gmail.com> (raw)
In-Reply-To: <804dabb00811060245t2dcae77bkcbba0156b9002c6d@mail.gmail.com>
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
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next prev parent reply other threads:[~2008-11-06 13:21 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-11-06 10:45 [uml-devel] How to avoid stopping at gdb's "Program received signal SIGSEGV, Segmentation fault"? Peter Teoh
2008-11-06 13:20 ` Samuel Korpi [this message]
2008-11-06 15:38 ` Peter Teoh
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