linux-kernel - [RFC 0/2] report perf sampling failing due to PMU lacking overflow intr support

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:	Mon, 9 May 2016 15:07:38 +0530
From:	Vineet Gupta <Vineet.Gupta1@...opsys.com>
To:	<linux-perf-users@...r.kernel.org>, <peterz@...radead.org>,
	<acme@...hat.com>
CC:	<linux-snps-arc@...ts.infradead.org>,
	<linux-kernel@...r.kernel.org>, <mingo@...nel.org>,
	<vincent.weaver@...ne.edu>,
	Vineet Gupta <Vineet.Gupta1@...opsys.com>
Subject: [RFC 0/2] report perf sampling failing due to PMU lacking overflow intr support

Hi,

A couple of minor patches to print better PMU lacking overflow intr support
such as in ARC700 cores.

This is an ABI change so might be controversial hence RFC.

Despite triviality, I've seperated the change into 2 pacthes - for different maintainers
and also kept userspace change first to keep it bisectable.

Comments welcome !

Thx,
-Vineet

Vineet Gupta (2):
  tools/perf: Handle EOPNOTSUPP for sampling events
  perf/core: change errno for sampling event not supported in hardware

 kernel/events/core.c    | 2 +-
 tools/perf/util/evsel.c | 3 +++
 2 files changed, 4 insertions(+), 1 deletion(-)

-- 
2.5.0