On 09/14/2014 10:15 PM, Greg Kroah-Hartman wrote:
On Sat, Sep 13, 2014 at 03:27:52PM +0100, Ben Hutchings wrote:
On Sat, 2014-09-13 at 00:47 -0700, Guenter Roeck wrote:
On 09/12/2014 05:49 PM, Greg Kroah-Hartman wrote:
On Fri, Aug 15, 2014 at 09:06:06AM -0700, Guenter Roeck wrote:
Ben,
Greg,
please apply the following patches to the respective -stable branches.
I started seeing the problems fixed with those patches after updating
my qemu tests to also execute SMP builds. Patches apply cleanly to all
branches, and my tests pass with the patches applied.
Thanks,
Guenter
---------
3.2:
6c37c9580409 MIPS: perf: Fix build error caused by unused counters_per_cpu_to_total()
ff522058bd71 MIPS: Fix accessing to per-cpu data when flushing the cache
3.4:
6c37c9580409 MIPS: perf: Fix build error caused by unused counters_per_cpu_to_total()
ff522058bd71 MIPS: Fix accessing to per-cpu data when flushing the cache
3.10:
ff522058bd71 MIPS: Fix accessing to per-cpu data when flushing the cache
Applied to 3.10, thanks.
greg k-h
Unrelated, but there is a new 3.10-stable-queue build failure.
Building powerpc:cell_defconfig ... failed
/opt/buildbot/slave/stable-queue-3.10/build/arch/powerpc/include/asm/pte-hash64-64k.h: In function '__real_pte':
/opt/buildbot/slave/stable-queue-3.10/build/arch/powerpc/include/asm/pte-hash64-64k.h:61:3: error: implicit declaration of function 'smp_rmb' [-Werror=implicit-function-declaration]
smp_rmb();
^
cc1: some warnings being treated as errors
make[1]: *** [arch/powerpc/kernel/asm-offsets.s] Error 1
Ben had the same error in 3.2 if I remember correctly.
Yes, so I folded this into "powerpc/mm: Use read barrier when creating
real_pte":
--- a/arch/powerpc/include/asm/pte-hash64-64k.h
+++ b/arch/powerpc/include/asm/pte-hash64-64k.h
@@ -40,6 +40,8 @@
#ifndef __ASSEMBLY__
+#include <asm/system.h> /* for smp_rmb() */
+
/*
* With 64K pages on hash table, we have a special PTE format that
* uses a second "half" of the page table to encode sub-page information
--- END ---
Thanks, now added, hopefully that fixes the build issue.
Unfortunately not; asm/system.h no longer exists in 3.10.
You'll have to include asm/barrier.h instead. I confirmed that this fixes the problem.
Guenter
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