From: Blaisorblade <blaisorblade@yahoo.it>
To: user-mode-linux-devel@lists.sourceforge.net
Cc: "Mei,Jia" <cfs_eric@yahoo.com.cn>
Subject: Re: [uml-devel] gdb debugging problem on uml-2.6.10
Date: Thu, 5 May 2005 19:02:22 +0200 [thread overview]
Message-ID: <200505051902.23104.blaisorblade@yahoo.it> (raw)
In-Reply-To: <42798ADD.5070607@yahoo.com.cn>
On Thursday 05 May 2005 04:54, Mei,Jia wrote:
> Blaisorblade wrote:
> >>When I try gdb-5.3.90 with uml in vanilla-2.6.10 kernel. I found a
> >> problem.
> >>When I set a breakpoint somewhere, and after some step, uml will
> >>always get a SIGTRAP signal and trap into gdb.
> >>Does anyone met the same problem as me? Any known fix for it?
> > No, I don't think there is any known fix for it. However, does this
> > problem keep on and makes debugging impossible (i.e., after you "cont",
> > does it keep stopping)?
> > Hmm, are you doing debugging in SKAS or in TT mode? In the second case,
> > then it can be a bug in the ptrace proxy (which has a big bug with some
> > gdb releases >= 6.0).
> > In the first case, maybe it's something I observed too (I'm not sure
> > because I don't use a lot gdb with UML)... Better, I've observed
> > breakpoints being *skipped* by gdb.
> I'm sorry for the late response since away for a few days. It turn out
> to be the rootfs problem, although I don't know why (not related to
> tls), change to a new rootfs fixed it. Maybe don't need to chase more on
> this.
> And appreciate you and Jeff's reply.
This just happened to other three people (including me) in these days, so I'd
like to know which rootfs's you used, to get a feeling of what could be going
on. Thanks a lot.
--
Paolo Giarrusso, aka Blaisorblade
Skype user "PaoloGiarrusso"
Linux registered user n. 292729
http://www.user-mode-linux.org/~blaisorblade
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next prev parent reply other threads:[~2005-05-05 17:08 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-04-28 15:54 [uml-devel] gdb debugging problem on uml-2.6.10 Mei,Jia
2005-04-28 20:51 ` Jeff Dike
2005-05-01 10:16 ` Blaisorblade
2005-05-05 2:54 ` Mei,Jia
2005-05-05 17:02 ` Blaisorblade [this message]
2005-05-05 20:14 ` Mei,Jia
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