From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from soda (office.linbit [213.229.1.138]) by mail.linbit.com (LINBIT Mail Daemon) with ESMTP id 02580163F3 for ; Sat, 11 Mar 2006 17:35:03 +0100 (CET) Date: Sat, 11 Mar 2006 17:35:05 +0100 From: Lars Ellenberg To: drbd-dev@lists.linbit.com Subject: Re: [Drbd-dev] freeze under postmark io bench Message-ID: <20060311163505.GC3816@soda.linbit> References: <6ed4c8790602101017l48d1b24s9fd684c82998e34f@mail.gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <6ed4c8790602101017l48d1b24s9fd684c82998e34f@mail.gmail.com> List-Id: Coordination of development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , / 2006-02-10 19:17:17 +0100 \ Laurent Denel: Sorry for answering so late, and for letting this post lingering on hold for over a month now. Seemingly 'someone' [guess who that might have been *gee*] did not take his duty being moderator for drbd-dev too seriously... > I'm currently experiencing freezes with drbd each time I run PostMark, > an io benchmark from NetApp. It was working all right on a 2.6.12 > kernel and version 0.7.11 but I'm currently switching to 2.6.15 with > version 0.7.15. > > Freezes occur on the primary node while creating thousands of files. > Secondary node is not impacted. > > I've tried latest svn commit (2064) and kernel 2.6.15.4. Same problem. > My kernel is configured with high memory support (64GB), PREEMPT, ... > The filesystem drbd is on is xfs. Hardware is a pair of DL380 from HP. > Network for drbd is a private Gb link on bcm5700 interfaces. > > You can find the postmark benchmark here : > http://www.eecs.harvard.edu/~syrah/filesystems/code/postmark-1_13.c > (The one we really use is 1_5 but I cannot find it anymore on the > Netapp website, I can post it if needed) please try with latest svn svn co http://svn.drbd.org/drbd/branches/drbd-0.7 I just checked in a one line change where we used GFP_KERNEL where we should have used GFP_NOIO... cheers, -- : Lars Ellenberg Tel +43-1-8178292-55 : : LINBIT Information Technologies GmbH Fax +43-1-8178292-82 : : Schoenbrunner Str. 244, A-1120 Vienna/Europe http://www.linbit.com :