linux-kernel - Re: [PATCHSET RFC] ptrace,signal: clean transition between STOPPED and TRACED

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Message-ID: <20110131160724.GO7459@htj.dyndns.org>
Date:	Mon, 31 Jan 2011 17:07:24 +0100
From:	Tejun Heo <tj@...nel.org>
To:	Oleg Nesterov <oleg@...hat.com>
Cc:	Roland McGrath <roland@...hat.com>, jan.kratochvil@...hat.com,
	linux-kernel@...r.kernel.org, torvalds@...ux-foundation.org,
	akpm@...ux-foundation.org
Subject: Re: [PATCHSET RFC] ptrace,signal: clean transition between STOPPED
 and TRACED

Hello,

On Mon, Jan 31, 2011 at 04:54:11PM +0100, Oleg Nesterov wrote:
> Are you sure late-ptrace-may-attach-check hangs? Perhaps it is the next
> one, tracer-lockup-on-sighandler-kill, it needs a lot of time to finish.
> IIRC, some time ago I did the testing with your patches applied (under
> kvm), I didn't notice anything unexpected.
> 
> Unfortunately, these tests are more or less "random", usually a new
> test-case appears when we find a bug.

I thought it was the first one but might be mistaken.  I left it
running for a couple of minutes several times but maybe it just needs
more time.  I'll try again.

Thanks.

-- 
tejun
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