kernel/linux
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ synced 2026-10-18 19:12:56 +00:00
Code Issues Releases Packages Activity
linux/arch/parisc
History
John David Anglin 6bb16fa581 parisc: Fix double-word compare and exchange in LWS code on 32-bit kernels 
commit 374b3bf8e8 upstream.

As discussed on the debian-hppa list, double-wordcompare and exchange
operations fail on 32-bit kernels.  Looking at the code, I realized that
the ",ma" completer does the wrong thing in the  "ldw,ma  4(%r26), %r29"
instruction.  This increments %r26 and causes the following store to
write to the wrong location.

Note by Helge Deller:
The patch applies cleanly to stable kernel series if this upstream
commit is merged in advance:
f4125cfdb3 ("parisc: Avoid trashing sr2 and sr3 in LWS code").

Signed-off-by: John David Anglin <dave.anglin@bell.net>
Tested-by: Christoph Biedl <debian.axhn@manchmal.in-ulm.de>
Fixes: 8920649120 ("parisc: Implement new LWS CAS supporting 64 bit operations.")
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2017-10-27 10:38:06 +02:00
..
configs mm/usercopy: get rid of CONFIG_DEBUG_STRICT_USER_COPY_CHECKS 2016-08-30 10:10:21 -07:00
include parisc/mm: Ensure IRQs are off in switch_mm() 2017-07-21 07:42:20 +02:00
kernel parisc: Fix double-word compare and exchange in LWS code on 32-bit kernels 2017-10-27 10:38:06 +02:00
lib parisc: fix bugs in pa_memcpy 2017-04-21 09:31:20 +02:00
math-emu parisc: Fix typo in fpudispatch.c 2016-05-22 22:29:07 +02:00
mm parisc: Report SIGSEGV instead of SIGBUS when running out of stack 2017-07-21 07:42:20 +02:00
oprofile oprofile: more whitespace fixes 2008-10-15 20:55:51 +02:00
defpalo.conf parisc: switch to gzip-compressed vmlinuz kernel 2013-07-09 22:09:20 +02:00
install.sh parisc: make "make install" not depend on vmlinux 2013-11-07 22:28:06 +01:00
Kconfig parisc: Switch to generic sched_clock implementation 2016-11-25 12:31:58 +01:00
Kconfig.debug parisc: Fix ftrace function tracer 2016-04-14 17:47:19 +02:00
Makefile parisc: Fix ftrace function tracer 2016-04-14 17:47:19 +02:00
nm Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00