From owner-freebsd-current@freebsd.org Thu Oct 27 13:21:37 2016 Return-Path: Delivered-To: freebsd-current@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 5E982C152F7 for ; Thu, 27 Oct 2016 13:21:37 +0000 (UTC) (envelope-from avg@FreeBSD.org) Received: from citapm.icyb.net.ua (citapm.icyb.net.ua [212.40.38.140]) by mx1.freebsd.org (Postfix) with ESMTP id 9BF88C0F for ; Thu, 27 Oct 2016 13:21:36 +0000 (UTC) (envelope-from avg@FreeBSD.org) Received: from porto.starpoint.kiev.ua (porto-e.starpoint.kiev.ua [212.40.38.100]) by citapm.icyb.net.ua (8.8.8p3/ICyb-2.3exp) with ESMTP id QAA04393 for ; Thu, 27 Oct 2016 16:21:28 +0300 (EEST) (envelope-from avg@FreeBSD.org) Received: from localhost ([127.0.0.1]) by porto.starpoint.kiev.ua with esmtp (Exim 4.34 (FreeBSD)) id 1bzkca-000DbX-IH for freebsd-current@FreeBSD.org; Thu, 27 Oct 2016 16:21:28 +0300 To: FreeBSD Current From: Andriy Gapon Subject: pmcstat -T -P instructions -t $pid ==> NMI Message-ID: <0479e273-1e86-13d0-ccd4-2fb6f57cff91@FreeBSD.org> Date: Thu, 27 Oct 2016 16:20:32 +0300 User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:45.0) Gecko/20100101 Thunderbird/45.4.0 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 27 Oct 2016 13:21:37 -0000 I observe a problem on a relatively recent, but not the latest, head. r306752 amd64 on AMD hardware. If I run pmcstat -T -P instructions -t $pid with a pid of a busy userland process, then I shortly get a (stray) NMI. Apparently hwpmc does not recognize that NMI. Any suggestions, help, me-toos? Thank you! -- Andriy Gapon