Prepare 3.13.5 update
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From a9f180345f5378ac87d80ed0bea55ba421d83859 Mon Sep 17 00:00:00 2001
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From: Steven Noonan <steven@uplinklabs.net>
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Date: Thu, 13 Feb 2014 07:01:07 +0000
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Subject: compiler/gcc4: Make quirk for asm_volatile_goto() unconditional
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I started noticing problems with KVM guest destruction on Linux
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3.12+, where guest memory wasn't being cleaned up. I bisected it
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down to the commit introducing the new 'asm goto'-based atomics,
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and found this quirk was later applied to those.
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Unfortunately, even with GCC 4.8.2 (which ostensibly fixed the
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known 'asm goto' bug) I am still getting some kind of
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miscompilation. If I enable the asm_volatile_goto quirk for my
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compiler, KVM guests are destroyed correctly and the memory is
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cleaned up.
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So make the quirk unconditional for now, until bug is found
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and fixed.
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Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
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Signed-off-by: Steven Noonan <steven@uplinklabs.net>
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Cc: Peter Zijlstra <peterz@infradead.org>
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Cc: Steven Rostedt <rostedt@goodmis.org>
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Cc: Jakub Jelinek <jakub@redhat.com>
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Cc: Richard Henderson <rth@twiddle.net>
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Cc: Andrew Morton <akpm@linux-foundation.org>
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Cc: Oleg Nesterov <oleg@redhat.com>
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Cc: <stable@vger.kernel.org>
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Link: http://lkml.kernel.org/r/1392274867-15236-1-git-send-email-steven@uplinklabs.net
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Link: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58670
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Signed-off-by: Ingo Molnar <mingo@kernel.org>
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---
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diff --git a/include/linux/compiler-gcc4.h b/include/linux/compiler-gcc4.h
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index ded4299..2507fd2 100644
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--- a/include/linux/compiler-gcc4.h
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+++ b/include/linux/compiler-gcc4.h
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@@ -75,11 +75,7 @@
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*
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* (asm goto is automatically volatile - the naming reflects this.)
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*/
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-#if GCC_VERSION <= 40801
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-# define asm_volatile_goto(x...) do { asm goto(x); asm (""); } while (0)
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-#else
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-# define asm_volatile_goto(x...) do { asm goto(x); } while (0)
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-#endif
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+#define asm_volatile_goto(x...) do { asm goto(x); asm (""); } while (0)
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#ifdef CONFIG_ARCH_USE_BUILTIN_BSWAP
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#if GCC_VERSION >= 40400
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--
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cgit v0.9.2
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9
PKGBUILD
9
PKGBUILD
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pkgbase=linux # Build stock -ARCH kernel
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#pkgbase=linux-custom # Build kernel with a different name
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_srcname=linux-3.13
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pkgver=3.13.4
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pkgver=3.13.5
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pkgrel=1
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arch=('i686' 'x86_64')
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url="http://www.kernel.org/"
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@ -27,11 +27,10 @@ source=("http://www.kernel.org/pub/linux/kernel/v3.x/${_srcname}.tar.xz"
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'0006-rpc_pipe-fix-cleanup-of-dummy-gssd-directory-when-no.patch'
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'0001-SUNRPC-Ensure-that-gss_auth-isn-t-freed-before-its-u.patch'
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'0001-syscalls.h-use-gcc-alias-instead-of-assembler-aliase.patch'
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'0001-quirk-asm_volatile_goto.patch'
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'i8042-fix-aliases.patch'
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)
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md5sums=('0ecbaf65c00374eb4a826c2f9f37606f'
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'77ca721ea0e8373f58f596fe0d9b1b47'
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'114c391a592131f1c12544e063173a45'
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'ba4468d313adfaf22368add7f58204aa'
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'035bb27dac306f5c028d96cad14bb249'
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'eb14dcfd80c00852ef81ded6e826826a'
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@ -45,7 +44,6 @@ md5sums=('0ecbaf65c00374eb4a826c2f9f37606f'
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'a724515b350b29c53f20e631c6cf9a14'
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'1ae4ec847f41fa1b6d488f956e94c893'
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'e6fa278c092ad83780e2dd0568e24ca6'
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'6baa312bc166681f48e972824f3f6649'
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'93dbf73af819b77f03453a9c6de2bb47')
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_kernelname=${pkgbase#linux}
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@ -92,9 +90,6 @@ prepare() {
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# Fix i8042 aliases
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patch -p1 -i "${srcdir}/i8042-fix-aliases.patch"
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# Fix compile issues
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# http://git.kernel.org/cgit/linux/kernel/git/tip/tip.git/patch/?id=a9f180345f5378ac87d80ed0bea55ba421d83859
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patch -Np1 -i "${srcdir}/0001-quirk-asm_volatile_goto.patch"
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if [ "${CARCH}" = "x86_64" ]; then
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cat "${srcdir}/config.x86_64" > ./.config
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