From: Florian Fainelli <f.fainelli@gmail.com>
To: linux-kernel@vger.kernel.org,
Arnaldo Carvalho de Melo <acme@kernel.org>,
Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@redhat.com>, Jiri Olsa <jolsa@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Namhyung Kim <namhyung@kernel.org>,
Kim Phillips <kim.phillips@arm.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Thomas Gleixner <tglx@linutronix.de>,
Ravi Bangoria <ravi.bangoria@linux.ibm.com>,
Thomas Richter <tmricht@linux.ibm.com>,
rmk+kernel@armlinux.org.uk, l.stach@pengutronix.de
Subject: Re: [PATCH v2 0/2] perf tests: Check for ARM [vectors] page
Date: Mon, 26 Nov 2018 16:27:43 -0800 [thread overview]
Message-ID: <149abe10-7ce5-5bf6-6182-6ca05969719c@gmail.com> (raw)
In-Reply-To: <29ea3732-0018-42ff-da09-646ee71a61cb@gmail.com>
On 11/13/18 2:44 PM, Florian Fainelli wrote:
> On 10/25/18 10:55 AM, Florian Fainelli wrote:
>> Hi all,
>>
>> I just painfully learned that perf would segfault when
>> CONFIG_KUSER_HELPERS is disabled because it unconditionally makes use of
>> it. This patch series adds an ARM test for that by leveraging the
>> existing find_vdso_map() function and making it more generic and capable
>> of location any map within /proc/self/maps.
>
> Did not get much feedback, you are all probably busy attending LPC
> conferences, but I was wondering if this did make sense or if there is a
> better approach that should be looked at?
>
> I am starting to see additional tests failing that require some ARM
> (32-bit) specific changes, and not accumulating too many of these fixes
> on top of that series would be neat.
>
> Thank you!
Ping? Would you prefer a resend to avoid any possible conflicts? Thanks
>
>>
>> Changes in v2:
>>
>> - use strlen() instead of sizeof() -1 since we made the page name a
>> parameter
>> - use TEST_OK/TEST_FAIL in lieu of 0/-1
>> - added an error message indicating CONFIG_KUSER_HELPERS might be
>> disabled
>>
>> Florian Fainelli (2):
>> perf tools: Make find_vdso_map() more modular
>> perf tests: Add a test for the ARM 32-bit [vectors] page
>>
>> tools/perf/arch/arm/tests/Build | 1 +
>> tools/perf/arch/arm/tests/arch-tests.c | 4 +++
>> tools/perf/arch/arm/tests/vectors-page.c | 24 ++++++++++++++++++
>> tools/perf/tests/tests.h | 5 ++++
>> tools/perf/util/find-map.c | 31 ++++++++++++++++++++++++
>> tools/perf/util/find-vdso-map.c | 30 +++--------------------
>> 6 files changed, 68 insertions(+), 27 deletions(-)
>> create mode 100644 tools/perf/arch/arm/tests/vectors-page.c
>> create mode 100644 tools/perf/util/find-map.c
>>
>
>
--
Florian
next prev parent reply other threads:[~2018-11-27 0:27 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-25 17:55 [PATCH v2 0/2] perf tests: Check for ARM [vectors] page Florian Fainelli
2018-10-25 17:55 ` [PATCH v2 1/2] perf tools: Make find_vdso_map() more modular Florian Fainelli
2018-11-27 9:31 ` Jiri Olsa
2018-12-10 20:16 ` Florian Fainelli
2018-11-27 9:33 ` Jiri Olsa
2018-10-25 17:55 ` [PATCH v2 2/2] perf tests: Add a test for the ARM 32-bit [vectors] page Florian Fainelli
2018-11-13 22:44 ` [PATCH v2 0/2] perf tests: Check for ARM " Florian Fainelli
2018-11-27 0:27 ` Florian Fainelli [this message]
2018-11-27 9:32 ` Jiri Olsa
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