linux-kernel - Re: Linux 3.11-rc4

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Message-ID: <20130805143935.GA18100@redhat.com>
Date:	Mon, 5 Aug 2013 16:39:35 +0200
From:	Oleg Nesterov <oleg@...hat.com>
To:	Felipe Contreras <felipe.contreras@...il.com>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: Linux 3.11-rc4

On 08/05, Felipe Contreras wrote:
>
> On Mon, Aug 5, 2013 at 8:29 AM, Oleg Nesterov <oleg@...hat.com> wrote:
> >
> > Could you please run wine under strace
> >
> >         strace -f -e ptrace -o LOG wine ...
> >
> > and show the result?
>
> Sure.

Thanks.

> Note that the crash might have happened some time before the end
> of the log.

Hmm. It should not crash under strace... please see below.

> 953   ptrace(PTRACE_ATTACH, 1035, 0, 0) = -1 EPERM (Operation not permitted)

OK, so it actually uses ptrace ;)

PTRACE_ATTACH fails because this child is already traced by strace, I guess.

So does Starcraft crash this way? Or does it fail in some other way?

And just in case... perhaps wine does some logging too?

Oleg.

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