netdev - Re: 3.2-rc2+: Reported regressions from 3.0 and 3.1

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Message-ID: <CA+55aFwAELQieN=qR7Gz_MT5rHPp90H10uTMS+DOJjefk7q3ng@mail.gmail.com>
Date:	Mon, 21 Nov 2011 14:11:54 -0800
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	"Rafael J. Wysocki" <rjw@...k.pl>,
	Andy Lutomirski <luto@...capital.net>
Cc:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Maciej Rutecki <maciej.rutecki@...il.com>,
	Florian Mickler <florian@...kler.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Kernel Testers List <kernel-testers@...r.kernel.org>,
	Network Development <netdev@...r.kernel.org>,
	Linux ACPI <linux-acpi@...r.kernel.org>,
	Linux PM List <linux-pm@...ts.linux-foundation.org>,
	Linux SCSI List <linux-scsi@...r.kernel.org>,
	Linux Wireless List <linux-wireless@...r.kernel.org>,
	DRI <dri-devel@...ts.freedesktop.org>
Subject: Re: 3.2-rc2+: Reported regressions from 3.0 and 3.1

On Mon, Nov 21, 2011 at 1:49 PM, Rafael J. Wysocki <rjw@...k.pl> wrote:
>
> Subject    : [3.1 REGRESSION] Commit 5cec93c216db77c45f7ce970d46283bcb1933884 breaks the Chromium seccomp sandbox
> Submitter  : Nix <nix@...eri.org.uk>
> Date       : 2011-11-14 0:40
> Message-ID : 8762inleno.fsf@...ndle.srvr.nix
> References : http://marc.info/?l=linux-kernel&m=132123396226377&w=2

So this should be fixed by commit 2b666859ec32 ("x86: Default to
vsyscall=native for now"), since we disabled the vsyscall emulation
because it broken UML too.

Of course, the chromium seccomp thing might re-surface with the
patches that enable the emulation (with better emulation), which Andy
is still working on, and that I was planning on merging for 3.3.

Andy, it migth be worth contacting Nix and having him test whether
your fixed emulation works for chromium too.

                      Linus
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