Return-Path: <linux-kernel-owner@vger.kernel.org>
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
        id S1752154AbdIMQA4 (ORCPT <rfc822;w@1wt.eu>);
        Wed, 13 Sep 2017 12:00:56 -0400
Received: from mail-io0-f176.google.com ([209.85.223.176]:43651 "EHLO
        mail-io0-f176.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org
        with ESMTP id S1751043AbdIMQAy (ORCPT
        <rfc822;linux-kernel@vger.kernel.org>);
        Wed, 13 Sep 2017 12:00:54 -0400
X-Google-Smtp-Source: AOwi7QCTTbSdhpAVyxw0etWQPEQbFR/oQjfJ8Wa/kL0sDFONdsDyC3OwKCsQBf3bhjsh7BlMeMWtug==
From: Vince Weaver <vincent.weaver@maine.edu>
X-Google-Original-From: Vince Weaver <vince@maine.edu>
Date: Wed, 13 Sep 2017 12:00:44 -0400 (EDT)
X-X-Sender: vince@macbook-air
To: linux-kernel@vger.kernel.org
cc: "Eric W. Biederman" <ebiederm@xmission.com>,
        Peter Zijlstra <peterz@infradead.org>, Ingo Molnar <mingo@redhat.com>,
        Arnaldo Carvalho de Melo <acme@kernel.org>
Subject: perf: weird si_code results on overflow signal
Message-ID: <alpine.DEB.2.20.1709131156360.7852@macbook-air>
User-Agent: Alpine 2.20 (DEB 67 2015-01-07)
MIME-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
Sender: linux-kernel-owner@vger.kernel.org
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org
Content-Length: 396
Lines: 13

Hello

I just compiled up a fresh git kernel and all of the perf_event_test 
overflow tests are failing.

The reason is that instead of getting POLL_IN or POLL_HUP sources as 
expected, they are getting weird results in si_code of "-5".

I haven't had time to bisect this, but I do notice that some major changes 
to si_code handling went in with
	64a76d0d64bea159da997c002a916ffc03f98bfc

Vince