From: Adrian Bunk Date: Wed, 5 Oct 2011 21:40:47 +0000 (+0300) Subject: x86: Default to vsyscall=native for now X-Git-Tag: v3.1-rc10~7^2 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2b666859ec323403ac9a3a441d16eab30945404b;p=pandora-kernel.git x86: Default to vsyscall=native for now This UML breakage: linux-2.6.30.1[3800] vsyscall fault (exploit attempt?) ip:ffffffffff600000 cs:33 sp:7fbfb9c498 ax:ffffffffff600000 si:0 di:606790 linux-2.6.30.1[3856] vsyscall fault (exploit attempt?) ip:ffffffffff600000 cs:33 sp:7fbfb13168 ax:ffffffffff600000 si:0 di:606790 Is caused by commit 3ae36655 ("x86-64: Rework vsyscall emulation and add vsyscall= parameter") - the vsyscall emulation code is not fully cooked yet as UML relies on some rather fragile SIGSEGV semantics. Linus suggested in https://lkml.org/lkml/2011/8/9/376 to default to vsyscall=native for now, this patch implements that. Signed-off-by: Adrian Bunk Acked-by: Andrew Lutomirski Cc: H. Peter Anvin Link: http://lkml.kernel.org/r/20111005214047.GE14406@localhost.pp.htv.fi Signed-off-by: Ingo Molnar --- Reading git-diff-tree failed