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From: Jeff Johnston <jjohnstn@redhat.com>
To: Daniel Jacobowitz <drow@false.org>
Cc: gdb-patches@sources.redhat.com
Subject: Re: [RFC]: fix for recycled thread ids
Date: Thu, 25 Mar 2004 20:22:00 -0000	[thread overview]
Message-ID: <40633F75.5010908@redhat.com> (raw)
In-Reply-To: <20040325163437.GA15238@nevyn.them.org>


Daniel Jacobowitz wrote:
> On Wed, Mar 24, 2004 at 11:39:50PM -0500, Daniel Jacobowitz wrote:
> 
>>Do you have any code for PTRACE_EVENT_CLONE yet, or should I put
>>something together in the morning to verify whether that's the problem?
> 
> 
> Here you go.  Again, this patch is obviously not ready to go into GDB,
> but I have not been able to make it misbehave yet.  I don't know if all
> the bits it needs work right in RHEL3, or if my testing was conclusive.
> 
> The highlights:
>   - Includes most of the previous patch
>   - Uses PTRACE_EVENT_CLONE to attach to new threads
>   - Moves handling of events closer to the waitpid call
> 
> There are some potential races but I haven't hit any of them in
> practice.  I suspect that with a heavy fork or vfork load (not clone)
> you could produce interesting failure modes.
> 
> Give it a try, please.  If it works I'll clean it up.
>

Works great.  I was unable to get it to misbehave on RHEL3.  Please go ahead 
cleaning it up.

-- Jeff J.


  reply	other threads:[~2004-03-25 20:22 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-03-19  0:36 Jeff Johnston
2004-03-19  1:53 ` Daniel Jacobowitz
2004-03-19 18:44   ` Jeff Johnston
2004-03-19 19:01     ` Daniel Jacobowitz
2004-03-19 19:35       ` Jeff Johnston
2004-03-19 19:40         ` Daniel Jacobowitz
2004-03-19 21:32           ` Jeff Johnston
2004-03-24 15:51             ` Daniel Jacobowitz
2004-03-24 16:56               ` Daniel Jacobowitz
2004-03-24 21:56                 ` Jeff Johnston
2004-03-25  0:46                   ` Jeff Johnston
2004-03-25  4:39                     ` Daniel Jacobowitz
2004-03-25 16:34                       ` Daniel Jacobowitz
2004-03-25 20:22                         ` Jeff Johnston [this message]
2004-03-26 17:59                           ` [patch] Use TD_DEATH and PTRACE_EVENT_CLONE when available (was: Re: [RFC]: fix for recycled thread ids) Daniel Jacobowitz
2004-03-26 18:14                             ` [patch] Use TD_DEATH and PTRACE_EVENT_CLONE when available Jeff Johnston
2004-03-26 21:13                               ` [patch] New thread test to exercise Daniel's Patch Jeff Johnston
2004-03-26 21:19                                 ` Daniel Jacobowitz
2004-03-29 18:06                                   ` Jeff Johnston
2004-03-29 18:11                                     ` Daniel Jacobowitz
2004-03-29 20:18                                       ` Jeff Johnston
2004-03-29 20:42                                         ` Daniel Jacobowitz
2004-03-29 21:04                                           ` Jeff Johnston
2004-03-29 21:34                                             ` Daniel Jacobowitz
2004-03-29 21:59                                               ` Jeff Johnston
2004-03-29 22:32                                                 ` Daniel Jacobowitz
2004-03-29 22:58                                                   ` Jeff Johnston
2004-03-29 23:57                                                     ` Daniel Jacobowitz
2004-03-29 18:07                             ` [patch] Use TD_DEATH and PTRACE_EVENT_CLONE when available (was: Re: [RFC]: fix for recycled thread ids) Daniel Jacobowitz
2004-03-19 20:33   ` [RFC]: fix for recycled thread ids Andrew Cagney

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