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From: Jan Kiszka <jan.kiszka@web.de>
To: tromey <tromey@redhat.com>
Cc: Vimal <j.vimal@gmail.com>, gdb@sourceware.org
Subject: Re: Multiple breakpoint issue when debugging loadable kernel module
Date: Thu, 27 Oct 2011 00:22:00 -0000	[thread overview]
Message-ID: <4EA89365.2010807@web.de> (raw)
In-Reply-To: <CAK3Ji13Vwh9ZBENNtBkuHfqww1=OhcUGKeCWwgYVmT++a5c4UQ@mail.gmail.com>

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On 2011-10-25 04:57, Vimal wrote:
> Hi,
> 
> With some suggestions from IRC folks sergiodj and SamB, I ran a git
> bisect on the HEAD of git://sourceware.org/git/gdb.git.
> 
> It seems like the first bad commit is:
> 2cdbbe44126601596aad7891de05cb7fc6bb21c8, which seems pretty big
> ~6000lines.

Wow, that saved me a lot of time. I just ran into the same issue and was
close to getting mad over the effect.

Maybe the commit is only that big because cvs-to-git conversion merged
too much into a single commit. I can't imagine that such a huge change
is done in one step.

> 
> Quoted below is my first mail to the list, with few details about the
> problem.  Also, here's an output from an actual run:
> http://pastebin.com/4PhDAHwW...
> 
> Tom Tromey: is this a known issue?

At least it is a critical one as it makes kernel module debugging nearly
impossible. I'm preparing a LinuxCon talk about how cool kernel
debugging with gdb and qemu can be - looks like I have to skip this
part... ;)

If there is anything to be done that could help analyzing the issue,
please let us know.

Jan


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  reply	other threads:[~2011-10-26 23:10 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-10-24  2:20 Vimal
2011-10-24 14:11 ` Vimal
2011-10-26 12:25 ` Vimal
2011-10-27  0:22   ` Jan Kiszka [this message]
2011-10-27  0:43     ` Vimal
2011-10-27  7:21       ` Jan Kiszka
2011-10-27 14:59         ` Vimal
2011-10-27 16:12           ` Jan Kiszka
2011-10-28  0:16         ` Tom Tromey
2011-10-31 17:20           ` Jan Kiszka
2011-10-27 19:38     ` Tom Tromey
2011-10-28  3:40       ` Vimal
2011-10-28 21:07         ` Vimal
2011-10-31 17:18           ` Jan Kiszka
2011-10-31 21:33             ` Tom Tromey
2011-11-01 15:32               ` Jan Kiszka
2011-11-01 20:13                 ` Jan Kratochvil
2011-11-05  2:07                   ` Vimal
2011-11-05  5:39                     ` Jan Kratochvil
2011-11-08  0:33                   ` Jan Kratochvil
2011-11-05  2:10             ` Vimal

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