From: Christian Borntraeger <borntraeger@de.ibm.com>
To: Heiko Carstens <heiko.carstens@de.ibm.com>
Subject: Re: [patch 27/85] [PATCH 07/44] [CVE-2009-0029] System call wrapper infrastructure
Date: Fri, 16 Jan 2009 11:09:21 +0100
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Cc: Jiri Slaby <jirislaby@gmail.com>, Greg KH <gregkh@suse.de>,
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       Justin Forbes <jmforbes@linuxtx.org>,
       Zwane Mwaikambo <zwane@arm.linux.org.uk>,
       "Theodore Ts'o" <tytso@mit.edu>, Randy Dunlap <rdunlap@xenotime.net>,
       Dave Jones <davej@redhat.com>, Chuck Wolber <chuckw@quantumlinux.com>,
       Chris Wedgwood <reviews@ml.cw.f00f.org>,
       Michael Krufky <mkrufky@linuxtv.org>, Chuck Ebbert <cebbert@redhat.com>,
       Domenico Andreoli <cavokz@gmail.com>, Willy Tarreau <w@1wt.eu>,
       Rodrigo Rubira Branco <rbranco@la.checkpoint.com>,
       Jake Edge <jake@lwn.net>, Eugene Teo <eteo@redhat.com>,
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       alan@lxorguk.ukuu.org.uk, Ralf Baechle <ralf@linux-mips.org>,
       Martin Schwidefsky <schwidefsky@de.ibm.com>
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Am Freitag 16 Januar 2009 schrieb Heiko Carstens:
> > I see two possible quick fixes:
> > -funit-at-a-time will allow these inline constructs (tested with 3.4.6 on 
i386 
> > with enabled syscall wrappers. x86_64 already sets this flag)
> 
> If that helps: care to send a patch that enables this?
> Dependent on CONFIG_HAVE_SYSCALL_WRAPPERS?

I could do that, but...

> That is, if this is really a problem.

..I dont know if this is really a problem. i386 is the only architecture where 
I was able to reproduce the inline problem. But i386 does not set 
SYSCALL_WRAPPERS so the problem goes away.

I suggest to wait for a patch until we know of an architecture that is 
affected (inline problem + HAVE_SYSCALL_WRAPPERS set).
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