Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758290Ab2F0Ri2 (ORCPT ); Wed, 27 Jun 2012 13:38:28 -0400 Received: from mail-pz0-f46.google.com ([209.85.210.46]:59614 "EHLO mail-pz0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756355Ab2F0Ri1 (ORCPT ); Wed, 27 Jun 2012 13:38:27 -0400 Date: Wed, 27 Jun 2012 10:38:22 -0700 From: Tejun Heo To: Josh Hunt Cc: Vivek Goyal , Jens Axboe , linux-kernel@vger.kernel.org Subject: Re: multi-second application stall in open() Message-ID: <20120627173822.GK15811@google.com> References: <20120626125953.GA22557@redhat.com> <20120626155332.GJ22557@redhat.com> <20120626205651.GW3869@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.20 (2009-06-14) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 544 Lines: 16 On Wed, Jun 27, 2012 at 12:21:32PM -0500, Josh Hunt wrote: > Was wondering if you had any suggestions on further instrumentation or > more data that you may need to better understand the problem? I think it's caused by the lazy HIGHPRI implementation in wq. Working on it now. Thanks. -- tejun -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/