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| author | Denys Vlasenko <dvlasenk@redhat.com> | 2015-07-24 14:16:43 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2015-07-24 16:36:00 +0200 |
| commit | c0c3322e98029e752526d906d9e3a680ed213c03 (patch) | |
| tree | 27c75dca77c0aa214449eb37d72deeb8d3825555 /arch/x86/mm/init.c | |
| parent | 8a0a5da6d9cbf1b142115ff6e6b253a82633c3d9 (diff) | |
| download | linux-stable-c0c3322e98029e752526d906d9e3a680ed213c03.tar.gz linux-stable-c0c3322e98029e752526d906d9e3a680ed213c03.tar.bz2 linux-stable-c0c3322e98029e752526d906d9e3a680ed213c03.zip | |
x86/asm/entry/32: Revert 'Do not use R9 in SYSCALL32' commit
This change reverts most of commit 53e9accf0f 'Do not use R9 in
SYSCALL32'. I don't yet understand how, but code in that commit
sometimes fails to preserve EBP.
See https://bugzilla.kernel.org/show_bug.cgi?id=101061
"Problems while executing 32-bit code on AMD64"
Reported-and-tested-by: Krzysztof A. Sobiecki <sobkas@gmail.com>
Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Alexei Starovoitov <ast@plumgrid.com>
Cc: Will Drewry <wad@chromium.org>
Cc: Kees Cook <keescook@chromium.org>
CC: x86@kernel.org
Link: http://lkml.kernel.org/r/1437740203-11552-1-git-send-email-dvlasenk@redhat.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86/mm/init.c')
0 files changed, 0 insertions, 0 deletions