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From: Daniel Jacobowitz <dan@debian.org>
To: John Blackwood <john.blackwood@ccur.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: [PATCH] ptrace(2) single-stepping into signal handlers
Date: Fri, 3 Jun 2005 14:11:06 -0400	[thread overview]
Message-ID: <20050603181106.GB29940@nevyn.them.org> (raw)
In-Reply-To: <42A09C6C.8030104@ccur.com>

On Fri, Jun 03, 2005 at 02:07:40PM -0400, John Blackwood wrote:
> > Subject: Re: [PATCH] ptrace(2) single-stepping into signal handlers
> > From: Daniel Jacobowitz <dan@debian.org>
> > Date: Fri, 3 Jun 2005 13:34:33 -0400
> > To: John Blackwood <john.blackwood@ccur.com>
> > CC: linux-kernel@vger.kernel.org, roland@redhat.com, ak@suse.de, 
> akpm@osdl.org, bugsy@ccur.com
> >
> > On Fri, Jun 03, 2005 at 01:21:20PM -0400, John Blackwood wrote:
> 
> > >> The reason for this behavior is due to the fact that:
> > >>
> > >> - We saved off the eflags (with the TF bit set) in setup_sigcontext()
> > >>   before we single stepped into the user's signal handler.
> >
> >
> > You didn't say what kernel you were using.  I believe this was fixed
> > some time ago.
> 
> Hi Dan,
> 
> I observed this behavior in a 2.6.11.10 kernel.  The code in 2.6.11.11
> looks the same in this area... this is the i386 code that I am speaking of.
> 
> I guess that 'some time ago' is more recent than that?
> 
> 
> If so, then please excuse me... and it's great that this is fixed.

I'm not sure of the timeline, but could you check that in a current
2.6.12 GIT snapshot?

-- 
Daniel Jacobowitz
CodeSourcery, LLC

  reply	other threads:[~2005-06-03 18:14 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-06-03 18:07 [PATCH] ptrace(2) single-stepping into signal handlers John Blackwood
2005-06-03 18:11 ` Daniel Jacobowitz [this message]
  -- strict thread matches above, loose matches on Subject: below --
2005-06-06 12:54 John Blackwood
     [not found] <d7q7jf$2s8$1@trex.ccur.com>
2005-06-04 13:03 ` John Blackwood
2005-06-03 17:21 John Blackwood
2005-06-03 17:34 ` Daniel Jacobowitz
2005-06-05 11:21 ` Andi Kleen
2005-06-05 14:37   ` cutaway

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