Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1030796Ab3HITNv (ORCPT ); Fri, 9 Aug 2013 15:13:51 -0400 Received: from mx1.redhat.com ([209.132.183.28]:22008 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1030485Ab3HITNt (ORCPT ); Fri, 9 Aug 2013 15:13:49 -0400 Date: Fri, 9 Aug 2013 21:15:42 +0200 From: Alexander Gordeev To: Mike Christie Cc: "Nicholas A. Bellinger" , James Bottomley , Jens Axboe , Tejun Heo , linux-kernel@vger.kernel.org, linux-ide@vger.kernel.org, Jeff Garzik , linux-scsi Subject: Re: [PATCH RESEND 0/1] AHCI: Optimize interrupt processing Message-ID: <20130809191542.GD25306@dhcp-26-207.brq.redhat.com> References: <1374173515.7397.948.camel@haakon3.risingtidesystems.com> <51E83E32.9050306@cs.wisc.edu> <1374193399.7397.973.camel@haakon3.risingtidesystems.com> <20130719003034.GG28005@kernel.dk> <1374195825.7397.997.camel@haakon3.risingtidesystems.com> <1374215660.7397.1041.camel@haakon3.risingtidesystems.com> <1374248000.2266.20.camel@dabdike> <1374267684.7397.1058.camel@haakon3.risingtidesystems.com> <1374296162.7397.1098.camel@haakon3.risingtidesystems.com> <51EAA33C.9010405@fusionio.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <51EAA33C.9010405@fusionio.com> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1046 Lines: 31 On Sat, Jul 20, 2013 at 09:48:28AM -0500, Mike Christie wrote: > What about the attached only compile tested patch. The patch has the mq > block code work like the non mq code for bio cleanups. Not sure if it is related to the patch or not, but it never returns from wait_for_completion_io(&wait) in blkdev_issue_flush(): # ps axl | awk '$10 ~ /D\+/' 4 0 938 879 20 0 111216 656 blkdev D+ pts/1 0:00 fdisk/dev/sda # # cat /proc/938/stack [] blkdev_issue_flush+0xfc/0x160 [] blkdev_fsync+0x96/0xc0 [] do_fsync+0x5d/0x90 [] SyS_fsync+0x10/0x20 [] system_call_fastpath+0x16/0x1b [] 0xffffffffffffffff Any ideas? Thanks! -- Regards, Alexander Gordeev agordeev@redhat.com -- 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/