Thank you.
--
Regards,
Marcelo
On Sun, Oct 02, 2016 at 10:40:47PM +0800, Herbert Xu wrote:
> On Thu, Sep 29, 2016 at 06:59:08AM +1000, Anton Blanchard wrote:
> > Hi Marcelo
> >
> > > This series fixes the memory corruption found by Jan Stancek in
> > > 4.8-rc7. The problem however also affects
[Sorry I have only now noticed this email]
On Thu 04-08-16 16:44:10, Paul Mackerras wrote:
> It appears that commit 75ef71840539 ("mm, vmstat: add infrastructure
> for per-node vmstats", 2016-07-28) has introduced a regression on
> machines that have nodes which have no memory, such as the POWER8
On Mon 03-10-16 14:47:16, Michal Hocko wrote:
> [Sorry I have only now noticed this email]
>
> On Thu 04-08-16 16:44:10, Paul Mackerras wrote:
[...]
> > [1.717648] Call Trace:
> > [1.717687] [c00ff0707b80] [c0270d08]
> > refresh_zone_stat_thresholds+0xb8/0x240 (unreliable)
> >
On Sun, Sep 25, 2016 at 1:36 PM, Reza Arbab wrote:
> In __fdt_scan_reserved_mem(), the availability of a node is determined
> by testing its "status" property.
>
> Move this check into its own function, borrowing logic from the
> unflattened version, of_device_is_available().
>
> Another caller wi
Hi Michael,
On 09/21/2016 11:34 AM, Mauricio Faria de Oliveira wrote:
So, the intent is to have a single/common hack that upstream is OK w/,
then apply that downstream in the multiple distros. Of course, if you
are not OK w/ this patch (which is obviously fair) we'll have to try it
downstream o
On 32-bit powerpc the ELF PLT sections of binaries (built with --bss-plt,
or with a toolchain which defaults to it) look like this:
[17] .sbss NOBITS 0002aff8 01aff8 14 00 WA 0 0 4
[18] .plt NOBITS 0002b00c 01aff8 84 00 WAX 0 0 4
[1
On Thu, 2016-09-29 at 10:21 +, C.H. Zhao wrote:
>
> From: Scott Wood
> Sent: Thursday, September 29, 2016 4:03 AM
> To: C.H. Zhao
> Cc: linuxppc-dev@lists.ozlabs.org; linux-ker...@vger.kernel.org; z.chenhui@g
> mail.com; Jason Jin
> Subject: Re: [v3,4/5] powerpc/pm: support deep sleep feature
If the capi link is going down while the PSL owns a dirty cache line,
any access from the host for that data could lead to an Unrecoverable
Error.
So when resetting the capi adapter through sysfs, make sure the PSL
cache is flushed. It won't help if there are any active Process
Elements on the card
Em Wed, Sep 28, 2016 at 11:29:16AM -0700, Sukadev Bhattiprolu escreveu:
> Arnaldo Carvalho de Melo [a...@kernel.org] wrote:
> > Em Tue, Sep 27, 2016 at 11:11:16AM -0700, Sukadev Bhattiprolu escreveu:
> > > Arnaldo Carvalho de Melo [a...@kernel.org] wrote:
> > > > Em Thu, Sep 15, 2016 at 03:24:43PM
On Mon, Oct 3, 2016 at 9:13 AM, Denys Vlasenko wrote:
> On 32-bit powerpc the ELF PLT sections of binaries (built with --bss-plt,
> or with a toolchain which defaults to it) look like this:
>
> [17] .sbss NOBITS 0002aff8 01aff8 14 00 WA 0 0
> 4
> [18] .plt
On 03/10/16 17:40, Anton Blanchard wrote:
> From: Anton Blanchard
>
> During context switch, switch_mm() sets our current CPU in mm_cpumask.
> We can avoid this atomic sequence in most cases by checking before
> setting the bit.
>
> Testing on a POWER8 using our context switch microbenchmark:
On Tue, 2016-10-04 at 10:25 +1100, Balbir Singh wrote:
> I think this makes sense, in fact I think in the longer term we can
> even use __set_bit() reorder-able version since we have a sync
> coming out of schedule(). The read side for TLB flush can use a RMB
No, that wouldn't be atomic vs. other
Kees Cook writes:
> On Mon, Oct 3, 2016 at 9:13 AM, Denys Vlasenko wrote:
>> On 32-bit powerpc the ELF PLT sections of binaries (built with --bss-plt,
>> or with a toolchain which defaults to it) look like this:
...
>>
>> Signed-off-by: Jason Gunthorpe
>> Signed-off-by: Denys Vlasenko
>> Acked
On 04/10/16 10:58, Benjamin Herrenschmidt wrote:
> On Tue, 2016-10-04 at 10:25 +1100, Balbir Singh wrote:
>> I think this makes sense, in fact I think in the longer term we can
>> even use __set_bit() reorder-able version since we have a sync
>> coming out of schedule(). The read side for TLB flu
Em Thu, Sep 15, 2016 at 03:24:48PM -0700, Sukadev Bhattiprolu escreveu:
> Previously we were dropping the useful longer descriptions that some
> events have in the event list completely. Now that jevents provides
> support for longer descriptions (see previous patch), add support for
> parsing the
Em Thu, Sep 15, 2016 at 03:24:49PM -0700, Sukadev Bhattiprolu escreveu:
> Previously we were dropping the useful longer descriptions that some
> events have in the event list completely. This patch makes them appear with
> perf list.
Squashed this with 11/19 so that we don't break bisect.
> Old
Em Thu, Sep 15, 2016 at 03:24:51PM -0700, Sukadev Bhattiprolu escreveu:
> From: Andi Kleen
>
> To work with existing mapfiles, assume that the first line in
> 'mapfile.csv' is a header line and skip over it.
Moved this more to the front of this patchkit so that when testing it,
reproducing the t
Em Thu, Sep 15, 2016 at 03:24:52PM -0700, Sukadev Bhattiprolu escreveu:
> Signed-off-by: Sukadev Bhattiprolu
> Acked-by: Jiri Olsa
> Acked-by: Ingo Molnar
> ---
> Changelog[v21]
> - Update README to reflect the Topics.json directory tree layout.
Fixed this:
[acme@jouet linux]$ am /wb/1.p
Em Thu, Sep 15, 2016 at 03:24:53PM -0700, Sukadev Bhattiprolu escreveu:
> From: Andi Kleen
>
> Make alias matching the events parser case-insensitive. This is useful
> with the JSON events. perf uses lower case events, but the CPU manuals
> generally use upper case event names. The JSON files use
On 27/09/16 10:14, Reza Arbab wrote:
> On Tue, Sep 27, 2016 at 07:12:31AM +1000, Benjamin Herrenschmidt wrote:
>> In any case, if the memory hasn't been hotplug, this shouldn't be necessary
>> as we shouldn't be considering it for allocation.
>
> Right. To be clear, the background info I put in
Em Mon, Oct 03, 2016 at 09:47:06PM -0300, Arnaldo Carvalho de Melo escreveu:
> Em Thu, Sep 15, 2016 at 03:24:53PM -0700, Sukadev Bhattiprolu escreveu:
> > From: Andi Kleen
> >
> > Make alias matching the events parser case-insensitive. This is useful
> > with the JSON events. perf uses lower case
From: Jiri Olsa
In some cases, like for fixdep and shortly for jevents, we need to build a tool
to run on the host that will be used in building a tool, such as perf, that is
being cross compiled, so do like the kernel and provide HOSTCC, HOSTLD and
HOSTAR
to do that.
Signed-off-by: Jiri Olsa
From: Andi Kleen
I need a JSON parser. This adds the simplest JSON parser I could find --
Serge Zaitsev's jsmn `jasmine' -- to the perf library. I merely
converted it to (mostly) Linux style and added support for non 0
terminated input.
The parser is quite straight forward and does not copy any
From: Andi Kleen
This is a modified version of an earlier patch by Andi Kleen.
We expect architectures to create JSON files describing the performance
monitoring (PMU) events that each CPU model/family of the architecture
supports.
Following is an example of the JSON file entry for an x86 event
From: Sukadev Bhattiprolu
Implement code that returns the generic CPU ID string for Powerpc. This
will be used to identify the specific table of PMU events to
parse/compare user specified events against.
Signed-off-by: Sukadev Bhattiprolu
Acked-by: Ingo Molnar
Acked-by: Jiri Olsa
Cc: Madhava
From: Andi Kleen
Implement the code to match CPU types to mapfile types for x86 based on
CPUID. This extends an existing similar function, but changes it to use
the x86 mapfile cpu description. This allows to resolve event lists
generated by jevents.
Signed-off-by: Andi Kleen
Signed-off-by: Su
From: Andi Kleen
To work with existing mapfiles, assume that the first line in
'mapfile.csv' is a header line and skip over it.
Signed-off-by: Sukadev Bhattiprolu
Acked-by: Ingo Molnar
Acked-by: Jiri Olsa
Cc: Madhavan Srinivasan
Cc: Peter Zijlstra
Link:
http://lkml.kernel.org/r/1473978296-
From: Sukadev Bhattiprolu
At run time (when 'perf' is starting up), locate the specific table of
PMU events that corresponds to the current CPU. Using that table, create
aliases for the each of the PMU events in the CPU. The use these aliases
to parse the user specified perf event.
In short this
From: Andi Kleen
Automatically adapt the now wider and word wrapped perf list output to
wider terminals. This requires querying the terminal before the auto
pager takes over, and exporting this information from the pager
subsystem.
Signed-off-by: Andi Kleen
Signed-off-by: Sukadev Bhattiprolu
A
From: Andi Kleen
Add a PERF_CPUID variable to override the CPUID of the current CPU
(within the current architecture). This is useful for testing, so that
all event lists can be tested on a single system.
Signed-off-by: Andi Kleen
Signed-off-by: Sukadev Bhattiprolu
Acked-by: Ingo Molnar
Acked
From: Andi Kleen
Add a --no-desc flag to 'perf list' to not print the event descriptions
that were earlier added for JSON events. This may be useful to get a
less crowded listing.
It's still default to print descriptions as that is the more useful
default for most users.
Signed-off-by: Andi Kle
From: Andi Kleen
Add support to print alias descriptions in perf list, which are taken
from the generated event files.
The sorting code is changed to put the events with descriptions at the
end. The descriptions are printed as possibly multiple word wrapped
lines.
Example output:
% perf list
.
From: Andi Kleen
Add support to group the output of perf list by the Topic field in the
JSON file.
Example output:
% perf list
...
Cache:
l1d.replacement
[L1D data line replacements]
l1d_pend_miss.pending
[L1D miss oustandings duration in cycles]
l1d_pend_miss.pending_cycles
From: Sukadev Bhattiprolu
Implement support in jevents to parse long descriptions for events that
may have them in the JSON files. A follow on patch will make this long
description available to user through the 'perf list' command.
Signed-off-by: Andi Kleen
Signed-off-by: Sukadev Bhattiprolu
A
From: Sukadev Bhattiprolu
Signed-off-by: Sukadev Bhattiprolu
Acked-by: Ingo Molnar
Acked-by: Jiri Olsa
Cc: Madhavan Srinivasan
Cc: Peter Zijlstra
Cc: linuxppc-dev@lists.ozlabs.org
Link:
http://lkml.kernel.org/r/1473978296-20712-16-git-send-email-suka...@linux.vnet.ibm.com
Signed-off-by: Arn
From: Sukadev Bhattiprolu
This avoids the JSON PMU events parser having to know whether its
aliases are for perf stat or perf record.
Signed-off-by: Andi Kleen
Signed-off-by: Sukadev Bhattiprolu
Acked-by: Ingo Molnar
Cc: Madhavan Srinivasan
Cc: Peter Zijlstra
Cc: linuxppc-dev@lists.ozlabs.o
From: Sukadev Bhattiprolu
Previously we were dropping the useful longer descriptions that some
events have in the event list completely. This patch makes them appear with
perf list.
Old perf list:
baclears:
baclears.all
[Counts the number of baclears]
vs new:
perf list -v:
...
baclea
From: Andi Kleen
Make alias matching the events parser case-insensitive. This is useful
with the JSON events. perf uses lower case events, but the CPU manuals
generally use upper case event names. The JSON files use lower case by
default too. But if we search case insensitively then users can
cut
From: Andi Kleen
The JSON event lists use a different encoding for fixed counters than
perf for instructions and cycles (ref-cycles is ok)
This lead to some common events like inst_retired.any or
cpu_clk_unhalted.thread not counting, when specified with their JSON
name.
Special case these event
From: Andi Kleen
Add support for the "frontend" extra MSR on Skylake in the JSON
conversion.
Signed-off-by: Andi Kleen
Acked-by: Ingo Molnar
Cc: Madhavan Srinivasan
Cc: Peter Zijlstra
Cc: linuxppc-dev@lists.ozlabs.org
Link:
http://lkml.kernel.org/r/1473978296-20712-19-git-send-email-suka...
From: Jiri Olsa
It is used in the build process, so stop suppressing its build in tools
cross builds.
Signed-off-by: Jiri Olsa
Tested-by: Arnaldo Carvalho de Melo
Cc: Andi Kleen
Cc: Madhavan Srinivasan
Cc: Peter Zijlstra
Cc: Sukadev Bhattiprolu
Cc: linuxppc-dev@lists.ozlabs.org
Link: http:
into perf/core
(2016-09-29 19:09:58 +0200)
are available in the git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git
tags/perf-core-for-mingo-20161003
for you to fetch changes up to b42c7369e3f451e22c2b0be5d193955498d37546:
perf pmu-events: Add Skylake frontend M
On Mon, 3 Oct 2016 17:03:03 +1100
Anton Blanchard wrote:
> From: Anton Blanchard
>
> I see quite a lot of static branch mispredictions on a simple
> web serving workload. The issue is in __atomic_add_unless(), called
> from _atomic_dec_and_lock(). There is no obvious common case, so it
> is be
On 04/10/16 06:36, Frederic Barrat wrote:
If the capi link is going down while the PSL owns a dirty cache line,
any access from the host for that data could lead to an Unrecoverable
IIRC, s/Unrecoverable/Uncorrectable/
Error.
So when resetting the capi adapter through sysfs, make sure the PSL
Acked-by: Ian Munsie
Hi Fred,
Frederic Barrat writes:
>
> + /* the adapter is about to be reset, so ignore errors */
> + cxl_data_cache_flush(adapter);
> +
Will be a good idea if we return error and not let the reset to proceed,
if cxl_data_cache_flush returns EBUSY as continuing again may cause the
UE error
Marcelo Cerri writes:
> [ Unknown signature status ]
> On Wed, Sep 28, 2016 at 09:20:15PM +0800, Herbert Xu wrote:
>> On Wed, Sep 28, 2016 at 10:15:51AM -0300, Marcelo Cerri wrote:
>> > Hi Herbert,
>> >
>> > Any thoughts on this one?
>>
>> Can this patch wait until the next merge window? On the
Mathieu Malaterre writes:
> On Sat, Oct 1, 2016 at 3:43 PM, Mathieu Malaterre wrote:
> [...]
>> [1.443124] UBSAN: Undefined behaviour in
>> /home/mathieu/tmp/linux-4.6.4/drivers/scsi/scsi_devinfo.c:458:21
> [...]
>
> Fixed by: https://lkml.org/lkml/2016/8/8/665
Thanks.
> Sorry for the nois
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