John David Anglin c78e710c1c parisc: Purge TLB before setting PTE ... The attached change interchanges the order of purging the TLB and setting the corresponding page table entry. TLB purges are strongly ordered. It occurred to me one night that setting the PTE first might have subtle ordering issues on SMP machines and cause random memory corruption. A TLB lock guards the insertion of user TLB entries. So after the TLB is purged, a new entry can't be inserted until the lock is released. This ensures that the new PTE value is used when the lock is released. Since making this change, no random segmentation faults have been observed on the Debian hppa buildd servers. Signed-off-by: John David Anglin <dave.anglin@bell.net> Cc: <stable@vger.kernel.org> # v3.16+ Signed-off-by: Helge Deller <deller@gmx.de>		2016-12-07 08:56:40 +01:00
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configs	mm/usercopy: get rid of CONFIG_DEBUG_STRICT_USER_COPY_CHECKS	2016-08-30 10:10:21 -07:00
include	parisc: Purge TLB before setting PTE	2016-12-07 08:56:40 +01:00
kernel	parisc: Also flush data TLB in flush_icache_page_asm	2016-11-25 12:32:01 +01:00
lib	parisc: Add hardened usercopy feature	2016-10-06 22:10:19 +02:00
math-emu	parisc: Fix typo in fpudispatch.c	2016-05-22 22:29:07 +02:00
mm	parisc: Show trap name in kernel crash	2016-10-11 20:52:47 +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