not properly initialize their sg tables when
CONFIG_DEBUG_SG is enabled.
Signed-off-by: Akinobu Mita akinobu.m...@gmail.com
Cc: Benjamin Herrenschmidt b...@kernel.crashing.org
Cc: Paul Mackerras pau...@samba.org
Cc: Michael Ellerman m...@ellerman.id.au
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux
2015-01-23 5:41 GMT+09:00 Kim Phillips kim.phill...@freescale.com:
On Thu, 22 Jan 2015 10:45:51 +0900
Joonsoo Kim iamjoonsoo@lge.com wrote:
On Wed, Jan 21, 2015 at 09:57:59PM +0900, Akinobu Mita wrote:
2015-01-21 9:07 GMT+09:00 Andrew Morton a...@linux-foundation.org:
On Tue, 20 Jan
2015-01-21 9:07 GMT+09:00 Andrew Morton a...@linux-foundation.org:
On Tue, 20 Jan 2015 15:01:50 -0800 j...@joshtriplett.org wrote:
On Tue, Jan 20, 2015 at 02:02:00PM -0600, Kim Phillips wrote:
It's possible to configure DEBUG_PAGEALLOC without PAGE_POISONING on
ppc. Fix building the
The BITOP_LE_SWIZZLE macro was used in the little-endian bitops functions
for powerpc. But these functions were converted to generic bitops and
the BITOP_LE_SWIZZLE is not used anymore.
Signed-off-by: Akinobu Mita akinobu.m...@gmail.com
Cc: Benjamin Herrenschmidt b...@kernel.crashing.org
Cc
and rename it along the way.
Signed-off-by: Benjamin Herrenschmidt b...@kernel.crashing.org
Looks good.
Acked-by: Akinobu Mita akinobu.m...@gmail.com
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- Caluculate the bitmap size with BITS_TO_LONGS()
- Use bitmap_empty() to verify that all bits are cleared
This also includes a printk to pr_warn() conversion.
Signed-off-by: Akinobu Mita akinobu.m...@gmail.com
Cc: Benjamin Herrenschmidt b...@kernel.crashing.org
Cc: Paul Mackerras pau
Replace BITOP_MASK and BITOP_WORD with BIT_MASK and BIT_WORD defined
in linux/bitops.h and remove BITOP_* which are not used anymore.
Signed-off-by: Akinobu Mita akinobu.m...@gmail.com
Cc: Benjamin Herrenschmidt b...@kernel.crashing.org
Cc: Paul Mackerras pau...@samba.org
Cc: linuxppc-dev
convert to use
asm-generic/bitops/le.h for powerpc.
Signed-off-by: Akinobu Mita akinobu.m...@gmail.com
Cc: Benjamin Herrenschmidt b...@kernel.crashing.org
Cc: Paul Mackerras pau...@samba.org
Cc: linuxppc-dev@lists.ozlabs.org
---
arch/powerpc/include/asm/bitops.h | 55
2012/7/4 Andrew Morton a...@linux-foundation.org:
On Sat, 30 Jun 2012 14:59:24 +0900
Akinobu Mita akinobu.m...@gmail.com wrote:
This provides kernel modules that can be used to test the error handling
of notifier call chain failures by injecting artifical errors to the
following notifier
to actions/notifier event/error.
Signed-off-by: Akinobu Mita akinobu.m...@gmail.com
Cc: Benjamin Herrenschmidt b...@kernel.crashing.org
Cc: Paul Mackerras pau...@samba.org
Cc: linuxppc-dev@lists.ozlabs.org
---
No changes since v4
lib/Kconfig.debug| 17 +
lib
error handling by injecting notifier errors
7. Online all hot-pluggable memory in preparation for testing
8. Test memory hot-remove error handling by injecting notifier errors
Signed-off-by: Akinobu Mita akinobu.m...@gmail.com
Suggested-by: Andrew Morton a...@linux-foundation.org
Cc: Pavel Machek pa
default if PM_DEBUG is enabled
Akinobu Mita (6):
fault-injection: notifier error injection
cpu: rewrite cpu-notifier-error-inject module
PM: PM notifier error injection module
memory: memory notifier error injection module
powerpc: pSeries reconfig notifier error injection module
fault
interface to control what error code
should be returned and which event should be failed.
Signed-off-by: Akinobu Mita akinobu.m...@gmail.com
Cc: Pavel Machek pa...@ucw.cz
Cc: Rafael J. Wysocki r...@sisk.pl
Cc: linux...@lists.linux-foundation.org
Cc: Greg KH g...@kroah.com
Cc: linux...@kvack.org
Cc
2012/6/27 Andrew Morton a...@linux-foundation.org:
On Sat, 23 Jun 2012 23:58:22 +0900
Akinobu Mita akinobu.m...@gmail.com wrote:
This adds two testing scripts with notifier error injection
Can we move these into tools/testing/selftests/, so that a make
run_tests runs these tests?
Also, I
= errno = 0)
- improve Kconfig help text
- make CONFIG_PM_NOTIFIER_ERROR_INJECTION visible even if PM_DEBUG is disabled
- make CONFIG_PM_NOTIFIER_ERROR_INJECTION default if PM_DEBUG is enabled
Akinobu Mita (6):
fault-injection: notifier error injection
cpu: rewrite cpu-notifier-error-inject
interface to control what error code
should be returned and which event should be failed.
Signed-off-by: Akinobu Mita akinobu.m...@gmail.com
Cc: Pavel Machek pa...@ucw.cz
Cc: Rafael J. Wysocki r...@sisk.pl
Cc: linux...@lists.linux-foundation.org
Cc: Greg KH g...@kroah.com
Cc: linux...@kvack.org
Cc
to actions/notifier event/error.
Signed-off-by: Akinobu Mita akinobu.m...@gmail.com
Cc: Benjamin Herrenschmidt b...@kernel.crashing.org
Cc: Paul Mackerras pau...@samba.org
Cc: linuxppc-dev@lists.ozlabs.org
---
* v4
- update modules to follow new interface
lib/Kconfig.debug
in preparation for testing
2. Test memory hot-add error handling by injecting notifier errors
3. Online all hot-pluggable memory in preparation for testing
4. Test memory hot-remove error handling by injecting notifier errors
Signed-off-by: Akinobu Mita akinobu.m...@gmail.com
Suggested-by: Andrew
- Use memchr_inv to check if the data contains all 0xFF bytes.
It is faster than looping for each byte.
- Use memcmp to compare memory areas
Signed-off-by: Akinobu Mita akinobu.m...@gmail.com
Cc: Benjamin Herrenschmidt b...@kernel.crashing.org
Cc: linuxppc-dev@lists.ozlabs.org
---
arch
interface to control what error code
should be returned and which event should be failed.
Signed-off-by: Akinobu Mita akinobu.m...@gmail.com
Cc: Pavel Machek pa...@ucw.cz
Cc: Rafael J. Wysocki r...@sisk.pl
Cc: linux...@lists.linux-foundation.org
Cc: Greg KH g...@kroah.com
Cc: linux...@kvack.org
Cc
the error code. If the notifier call chain should be failed
with some events notified, write the error code to the files.
This module needs pSeries_reconfig_notifier_{,un}register symbols to be
exported.
Signed-off-by: Akinobu Mita akinobu.m...@gmail.com
Cc: Benjamin Herrenschmidt b
in preparation for testing
4. Test CPU hot-remove error handling by injecting notifier errors
* tools/testing/fault-injection/memory-notifier.sh is doing the same thing
for memory hotplug notifier.
Signed-off-by: Akinobu Mita akinobu.m...@gmail.com
Suggested-by: Andrew Morton a...@linux
interface to control what error code
should be returned and which event should be failed.
Signed-off-by: Akinobu Mita akinobu.m...@gmail.com
Cc: Pavel Machek pa...@ucw.cz
Cc: Rafael J. Wysocki r...@sisk.pl
Cc: linux...@lists.linux-foundation.org
Cc: Greg Kroah-Hartman gre...@suse.de
Cc: linux
the error code. If the notifier call chain should
be failed with some events notified, write the error code to the files.
Signed-off-by: Akinobu Mita akinobu.m...@gmail.com
Cc: Benjamin Herrenschmidt b...@kernel.crashing.org
Cc: Paul Mackerras pau...@samba.org
Cc: linuxppc-dev@lists.ozlabs.org
interface to control what error code
should be returned and which event should be failed.
Signed-off-by: Akinobu Mita akinobu.m...@gmail.com
Cc: Pavel Machek pa...@ucw.cz
Cc: Rafael J. Wysocki r...@sisk.pl
Cc: Greg Kroah-Hartman gre...@suse.de
Cc: Benjamin Herrenschmidt b...@kernel.crashing.org
Cc
the error code. If the notifier call chain should
be failed with some events notified, write the error code to the files.
Signed-off-by: Akinobu Mita akinobu.m...@gmail.com
Cc: Benjamin Herrenschmidt b...@kernel.crashing.org
Cc: Paul Mackerras pau...@samba.org
Cc: linuxppc-dev@lists.ozlabs.org
2011/7/4 Pavel Machek pa...@ucw.cz:
+ for (action = enb-actions; action-name; action++) {
+ struct dentry *file = debugfs_create_int(action-name, mode,
+ enb-dir, action-error);
+
+ if (!file) {
+
with notifier_from_errno().
Signed-off-by: Akinobu Mita akinobu.m...@gmail.com
Cc: Benjamin Herrenschmidt b...@kernel.crashing.org
Cc: Paul Mackerras pau...@samba.org
Cc: linuxppc-dev@lists.ozlabs.org
---
arch/powerpc/kernel/prom.c |8 +++-
arch/powerpc/platforms/pseries
2011/2/7 Benjamin Herrenschmidt b...@kernel.crashing.org:
On Thu, 2011-01-27 at 22:56 +0900, Akinobu Mita wrote:
(This patch is intended to be folded into the patch in -mm:
powerpc-introduce-little-endian-bitops.patch)
The little-endian bitops on powerpc are written as preprocessor
macros
, and
that is a Very Bad Thing.
This converts the little-endian bitops macros to static inline functions
with proper prototypes.
Suggested-by: H. Peter Anvin h...@zytor.com
Signed-off-by: Akinobu Mita akinobu.m...@gmail.com
Cc: Benjamin Herrenschmidt b...@kernel.crashing.org
Cc: Paul Mackerras pau...@samba.org
Cc
Introduce little-endian bit operations by renaming existing powerpc
native little-endian bit operations and changing them to take any
pointer types.
Signed-off-by: Akinobu Mita akinobu.m...@gmail.com
Cc: Benjamin Herrenschmidt b...@kernel.crashing.org
Cc: Paul Mackerras pau...@samba.org
Cc
Introduce little-endian bit operations by renaming existing powerpc
native little-endian bit operations.
Signed-off-by: Akinobu Mita akinobu.m...@gmail.com
Cc: Benjamin Herrenschmidt b...@kernel.crashing.org
Cc: Paul Mackerras pau...@samba.org
Cc: linuxppc-dev@lists.ozlabs.org
---
The whole
Simplify several write fileoperations for spufs by using
simple_write_to_buffer().
Signed-off-by: Akinobu Mita akinobu.m...@gmail.com
Cc: Benjamin Herrenschmidt b...@kernel.crashing.org
Cc: Paul Mackerras pau...@samba.org
Cc: Jeremy Kerr j...@ozlabs.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: cbe
Simplify read file operation for /proc/powerpc/rtas/* interface
by using simple_read_from_buffer.
Signed-off-by: Akinobu Mita akinobu.m...@gmail.com
Cc: Benjamin Herrenschmidt b...@kernel.crashing.org
Cc: Paul Mackerras pau...@samba.org
Cc: linuxppc-dev@lists.ozlabs.org
---
arch/powerpc/kernel
/test_and_set_le_bit/
s/generic_test_and_clear_le_bit/test_and_clear_le_bit/
Signed-off-by: Akinobu Mita akinobu.m...@gmail.com
Acked-by: Arnd Bergmann a...@arndb.de
Acked-by: Hans-Christian Egtvedt hans-christian.egtv...@atmel.com
Cc: Geert Uytterhoeven ge...@linux-m68k.org
Cc: Roman Zippel zip...@linux
/test_and_set_le_bit/
s/generic_test_and_clear_le_bit/test_and_clear_le_bit/
Signed-off-by: Akinobu Mita akinobu.m...@gmail.com
Cc: Hans-Christian Egtvedt hans-christian.egtv...@atmel.com
Cc: Geert Uytterhoeven ge...@linux-m68k.org
Cc: Roman Zippel zip...@linux-m68k.org
Cc: Andreas Schwab sch...@linux
clk_get() should return an ERR_PTR value on error, not NULL.
Signed-off-by: Akinobu Mita akinobu.m...@gmail.com
Cc: Grant Likely grant.lik...@secretlab.ca
Cc: linuxppc-dev@lists.ozlabs.org
---
arch/powerpc/platforms/512x/clock.c |2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff
Replace open-coded rate limiting logic with __ratelimit().
Signed-off-by: Akinobu Mita akinobu.m...@gmail.com
Cc: Benjamin Herrenschmidt b...@kernel.crashing.org
Cc: Paul Mackerras pau...@samba.org
Cc: linuxppc-...@ozlabs.org
---
arch/powerpc/platforms/iseries/pci.c | 10 +++---
1 files
2009/10/29 Andrew Morton a...@linux-foundation.org:
Why were these patches resent? What changed?
Everybody who is going to review these patches has already reviewed
them and now they need to review them all again?
I resent the patches because the iommu-helper change was not correct
and I
of the limit in bitmap
4. Remove iommu_area_free, iommu_area_reserve, and find_next_zero_area
Signed-off-by: Akinobu Mita akinobu.m...@gmail.com
Cc: David S. Miller da...@davemloft.net
Cc: sparcli...@vger.kernel.org
Cc: Benjamin Herrenschmidt b...@kernel.crashing.org
Cc: Paul Mackerras pau
2009/10/17 FUJITA Tomonori fujita.tomon...@lab.ntt.co.jp:
On Tue, 13 Oct 2009 18:10:17 +0900
Akinobu Mita akinobu.m...@gmail.com wrote:
My user space testing exposed off-by-one error find_next_zero_area
in iommu-helper. Some zero area cannot be found by this bug.
Subject: [PATCH] Fix off
--- a/lib/iommu-helper.c
+++ b/lib/iommu-helper.c
@@ -19,7 +19,7 @@ again:
index = (index + align_mask) ~align_mask;
end = index + nr;
- if (end = size)
+ if (end size)
I think that this is intentional; the last byte of the limit doesn't
work.
It looks
From: Akinobu Mita akinobu.m...@gmail.com
Subject: Fix
bitmap-introduce-bitmap_set-bitmap_clear-bitmap_find_next_zero_area.patch
- Rewrite bitmap_set and bitmap_clear
Instead of setting or clearing for each bit.
- Fix off-by-one errors in bitmap_find_next_zero_area
This bug was derived
My user space testing exposed off-by-one error find_next_zero_area
in iommu-helper. Some zero area cannot be found by this bug.
Subject: [PATCH] Fix off-by-one error in find_next_zero_area
Signed-off-by: Akinobu Mita akinobu.m...@gmail.com
---
lib/iommu-helper.c |2 +-
1 files changed, 1
Update PATCH 2/8 based on review comments by Andrew and bugfix
exposed by user space testing.
I didn't change argument of align_mask at this time because it
turned out that it needs more changes in iommu-helper users.
From: Akinobu Mita akinobu.m...@gmail.com
Subject: Fix
bitmap-introduce
On Wed, Oct 14, 2009 at 08:54:47AM +1100, Michael Ellerman wrote:
On Tue, 2009-10-13 at 18:10 +0900, Akinobu Mita wrote:
My user space testing exposed off-by-one error find_next_zero_area
in iommu-helper.
Why not merge those tests into the kernel as a configurable boot-time
self-test?
I
On Fri, Oct 09, 2009 at 04:41:00PM -0700, Andrew Morton wrote:
On Fri, 9 Oct 2009 17:29:15 +0900
Akinobu Mita akinobu.m...@gmail.com wrote:
This introduces new bitmap functions:
bitmap_set: Set specified bit area
bitmap_clear: Clear specified bit area
bitmap_find_next_zero_area
: Yevgeny Petrilin yevge...@mellanox.co.il
Cc: net...@vger.kernel.org
Cc: Tony Luck tony.l...@intel.com
Cc: Fenghua Yu fenghua...@intel.com
Cc: linux-i...@vger.kernel.org
Cc: linux-al...@sgi.com
Signed-off-by: Akinobu Mita akinobu.m...@gmail.com
---
include/linux/bitmap.h | 11 +++
lib
: Ingo Molnar mi...@redhat.com
Cc: H. Peter Anvin h...@zytor.com
Cc: x...@kernel.org
Cc: FUJITA Tomonori fujita.tomon...@lab.ntt.co.jp
Signed-off-by: Akinobu Mita akinobu.m...@gmail.com
---
arch/powerpc/kernel/iommu.c |4 +-
arch/sparc/kernel/iommu.c|3 +-
arch/x86/kernel
Looks good. I tested it on x86_32.
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On Wed, Apr 01, 2009 at 04:33:31PM -0500, Kumar Gala wrote:
The following commit breaks PPC builds with CONFIG_HIGHMEM=y
commit f4112de6b679d84bd9b9681c7504be7bdfb7c7d5
Author: Akinobu Mita akinobu.m...@gmail.com
Date: Tue Mar 31 15:23:25 2009 -0700
mm: introduce debug_kmap_atomic
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