From: Blaisorblade <blaisorblade@yahoo.it>
To: user-mode-linux-devel@lists.sourceforge.net
Cc: Jeff Dike <jdike@addtoit.com>,
Miao Qingjun <qmiao@centecnetworks.com>,
user-mode-linux-user@lists.sourceforge.net
Subject: Re: [uml-devel] SIGTRAP and gdb multithreading program under UML
Date: Thu, 13 Jul 2006 20:50:29 +0200 [thread overview]
Message-ID: <200607132050.30062.blaisorblade@yahoo.it> (raw)
In-Reply-To: <20060713184556.GB5413@ccure.user-mode-linux.org>
On Thursday 13 July 2006 20:45, Jeff Dike wrote:
> On Thu, Jul 13, 2006 at 08:49:31PM +0800, Miao Qingjun wrote:
> > Under UML bash, I gdb a multithreading program, and set a breakpoint on
> > thread entry function, But when run it, gdb is not stop at the
> > breakpoint,
> > instead, program exit because:
> >
> > Program terminated with signal SIGTRAP, Trace/breakpoint trap.
>
> What version of UML? Sounds like a bug in UML interrupt handling.
>
> Can you send me a copy of the binary you're debugging?
SIGTRAP must be sent for the breakpoint - I think the problem is that either
GDB misinterprets it or it is not sent the correct way.
--
Inform me of my mistakes, so I can keep imitating Homer Simpson's "Doh!".
Paolo Giarrusso, aka Blaisorblade
http://www.user-mode-linux.org/~blaisorblade
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next prev parent reply other threads:[~2006-07-13 18:50 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-07-13 12:49 [uml-devel] SIGTRAP and gdb multithreading program under UML Miao Qingjun
2006-07-13 18:45 ` Blaisorblade
2006-07-13 18:45 ` Jeff Dike
2006-07-13 18:50 ` Blaisorblade [this message]
2006-07-13 19:16 ` Jeff Dike
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