From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from digeo-nav01.digeo.com (digeo-nav01.digeo.com [192.168.1.233]) by packet.digeo.com (8.9.3+Sun/8.9.3) with SMTP id MAA29844 for ; Wed, 16 Oct 2002 12:43:07 -0700 (PDT) Message-ID: <3DADC14A.5700CEC@digeo.com> Date: Wed, 16 Oct 2002 12:43:06 -0700 From: Andrew Morton MIME-Version: 1.0 Subject: Re: 2.5.42-mm2 hangs system References: <20021013160451.GA25494@hswn.dk> <3DA9CA28.155BA5CB@digeo.com> <20021013223332.GA870@hswn.dk> <20021016183907.B29405@in.ibm.com> <20021016154943.GA13695@hswn.dk> <20021016185908.GA863@hswn.dk> <20021017010103.C2380@in.ibm.com> Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit Sender: owner-linux-mm@kvack.org Return-Path: To: dipankar@in.ibm.com Cc: Henrik =?iso-8859-1?Q?St=F8rner?= , Maneesh Soni , linux-mm@kvack.org List-ID: Dipankar Sarma wrote: > > On Wed, Oct 16, 2002 at 08:59:08PM +0200, Henrik Storner wrote: > > well you hit the nail right on the head there. > > > > I've just been running the 2.5.42-mm2 kernel except for the dcache_rcu > > patch for a full hour, and I was unable to reproduce the hangs that I > > saw with the full -mm2 patch installed. Did two full kernel builds > > while reading some mail and doing other stuff - no problems what so > > ever. > > > > Just to be sure, I re-applied the dcache_rcu patch, rebuilt the > > kernel, booted with the kernel containing dcache_rcu patch, > > and the system died within a few minutes. > > > > So it is definitely something in the dcache_rcu patch that does it. > > Well, I am not quite sure of this yet. Maneesh pointed out this earlier - > In this machine with 2.5.42-mm2 and no dcache_rcu, (with your .config), > we see this - > > [root@llm04 dbench]# df > Filesystem 1k-blocks Used Available Use% Mounted on > /dev/sda6 1004024 461168 491852 49% / > /dev/sda1 505605 38348 441153 8% /boot > /dev/sda5 2514172 1791560 594900 76% /usr > none 257532 0 257532 0% /dev/shm > /dev/sdb5 6324896 23996 5979604 1% /mnt/sdb5 > llm04:/mnt/sdb5 6324896 23968 5979616 1% /mnt/sdc1 > /dev/sda2 9068648 3993040 4614948 47% /home > [root@llm04 dbench]# pwd > /mnt/sdc1/dbench > root@llm04 dbench]# ./dbench 4 > 4 clients started > ..........................................................................................................................................rmdir CLIENTS/CLIENT2/~DMTMP/WORDPRO failed (Directory not empty) > rmdir CLIENTS/CLIENT2/~DMTMP/PARADOX failed (Directory not empty) Is this dbench-on-NFS? That has always failed - it's to do with the funny NFS handling of unlinked-while-open files. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/