From: Andi Kleen <ak@suse.de>
To: Bodo Stroesser <bstroesser@fujitsu-siemens.com>
Cc: Andi Kleen <ak@suse.de>, linux-kernel@vger.kernel.org
Subject: Re: 2.6.10-rc3, i386: fpu handling on sigreturn
Date: Thu, 23 Dec 2004 00:54:48 +0100 [thread overview]
Message-ID: <20041222235448.GA17720@verdi.suse.de> (raw)
In-Reply-To: <41CA0813.1070707@fujitsu-siemens.com>
On Thu, Dec 23, 2004 at 12:49:39AM +0100, Bodo Stroesser wrote:
> Andi Kleen wrote:
> >Bodo Stroesser <bstroesser@fujitsu-siemens.com> writes:
> >
> >>Now, the interrupted processes fpu no longer is cleared!
> >
> >
> >I agree it's a bug, although it's probably pretty obscure so people
> >didn't notice it. The right fix would be to just clear_fpu again
> >in this case. The problem has been in Linux forever.
> Wouldn't it be better to also reset used_math to 0? (As it has been,
> before the sighandler was started)
It would only be an optimization, and i doubt it's worth to optimize for
such an obscure case.
-Andi
next prev parent reply other threads:[~2004-12-22 23:54 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <41C9B21F.90802@fujitsu-siemens.com.suse.lists.linux.kernel>
2004-12-22 23:24 ` Andi Kleen
2004-12-22 23:49 ` Bodo Stroesser
2004-12-22 23:54 ` Andi Kleen [this message]
2004-12-23 9:33 ` Bodo Stroesser
2004-12-23 11:29 ` Andi Kleen
2004-12-22 17:42 Bodo Stroesser
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