From patchwork Wed Oct 12 07:58:24 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "lan,Tianyu" X-Patchwork-Id: 9372203 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 712CE60772 for ; Wed, 12 Oct 2016 08:01:35 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 6295829378 for ; Wed, 12 Oct 2016 08:01:35 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 56E7129D02; Wed, 12 Oct 2016 08:01:35 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.2 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 5201D29D01 for ; Wed, 12 Oct 2016 08:01:31 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1buERY-0003mW-Mi; Wed, 12 Oct 2016 07:59:16 +0000 Received: from mail6.bemta5.messagelabs.com ([195.245.231.135]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1buERX-0003kM-6x for xen-devel@lists.xen.org; Wed, 12 Oct 2016 07:59:15 +0000 Received: from [85.158.139.211] by server-10.bemta-5.messagelabs.com id 73/85-16745-25DEDF75; Wed, 12 Oct 2016 07:59:14 +0000 X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFvrJLMWRWlGSWpSXmKPExsVywNwkVjfo7d9 wg1cHFSyWfFzM4sDocXT3b6YAxijWzLyk/IoE1ozXM+6wF6xhq2g6dZG9gXECaxcjJ4eQQKXE hrb9bCC2hACvxJFlM1ghbD+JeTdnMHUxcgHV9DNKXNh+kxkkwSagLnFi8URGEFtEwEbi4+O5b CBFzALXGSWarp0GmyQs4COxf08jE4jNIqAqMW/HdaAGDg5eAReJ/s21IKaEgILEnEk2IBWcAq 4SUw/9YYe4x0WiaWcH2wRG3gWMDKsYNYpTi8pSi3QNDfSSijLTM0pyEzNzgDxTvdzU4uLE9NS cxKRiveT83E2MwGBgAIIdjGumOh9ilORgUhLlzeX7Gy7El5SfUpmRWJwRX1Sak1p8iFGGg0NJ glf5DVBOsCg1PbUiLTMHGJYwaQkOHiURXkaQNG9xQWJucWY6ROoUoy7Hgh+31zIJseTl56VKi fPqgxQJgBRllObBjYDFyCVGWSlhXkago4R4ClKLcjNLUOVfMYpzMCoJ8zqBTOHJzCuB2/QK6A gmoCNsJv0BOaIkESEl1cDo/UdMd8qKw1oTJjSGMy/pXf/a50qvRA1L+PHdtZfk53wuiDAr5lg V/O75jcebp9RsD9YoMTpxUEvq6drj3/g//vsc2u51otDfwUw1ct7m4JOsf5648EUfu/SC+0/4 aau3bNzye7bxqwVvucN7te+WZ0pKSMjPbUfmrbTMebpw5ryWK2HbXjEXKrEUZyQaajEXFScCA AS0ULqMAgAA X-Env-Sender: tianyu.lan@intel.com X-Msg-Ref: server-6.tower-206.messagelabs.com!1476259152!64204776!1 X-Originating-IP: [192.55.52.93] X-SpamReason: No, hits=0.0 required=7.0 tests=sa_preprocessor: VHJ1c3RlZCBJUDogMTkyLjU1LjUyLjkzID0+IDMyNDY2NQ==\n X-StarScan-Received: X-StarScan-Version: 8.84; banners=-,-,- X-VirusChecked: Checked Received: (qmail 7233 invoked from network); 12 Oct 2016 07:59:14 -0000 Received: from mga11.intel.com (HELO mga11.intel.com) (192.55.52.93) by server-6.tower-206.messagelabs.com with DHE-RSA-CAMELLIA256-SHA encrypted SMTP; 12 Oct 2016 07:59:14 -0000 Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by fmsmga102.fm.intel.com with ESMTP; 12 Oct 2016 00:59:11 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.31,333,1473145200"; d="scan'208";a="18747395" Received: from lantianyu-ws.sh.intel.com (HELO localhost) ([10.239.159.159]) by fmsmga005.fm.intel.com with ESMTP; 12 Oct 2016 00:59:09 -0700 From: Lan Tianyu To: xen-devel@lists.xenproject.org, xen-devel@lists.xen.org Date: Wed, 12 Oct 2016 15:58:24 +0800 Message-Id: <1476259105-16448-3-git-send-email-tianyu.lan@intel.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1476259105-16448-1-git-send-email-tianyu.lan@intel.com> References: <1476259105-16448-1-git-send-email-tianyu.lan@intel.com> Cc: Lan Tianyu , sstabellini@kernel.org, wei.liu2@citrix.com, George.Dunlap@eu.citrix.com, andrew.cooper3@citrix.com, ian.jackson@eu.citrix.com, jbeulich@suse.com Subject: [Xen-devel] [PATCH v2 2/2] Xen/timer: Process softirq during dumping timer info X-BeenThere: xen-devel@lists.xen.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" X-Virus-Scanned: ClamAV using ClamSMTP Dumping timer info may run for a long time on the huge machine with a lot of physical cpus. To avoid triggering NMI watchdog, add process_pending_softirqs() in the loop of dumping timer info. Reviewed-by: Konrad Rzeszutek Wilk Signed-off-by: Lan Tianyu --- xen/common/timer.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/xen/common/timer.c b/xen/common/timer.c index 29a60a9..ab6bca0 100644 --- a/xen/common/timer.c +++ b/xen/common/timer.c @@ -530,6 +530,7 @@ static void dump_timerq(unsigned char key) { ts = &per_cpu(timers, i); + process_pending_softirqs(); printk("CPU%02d:\n", i); spin_lock_irqsave(&ts->lock, flags); for ( j = 1; j <= GET_HEAP_SIZE(ts->heap); j++ )