From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Vladimir V. Saveliev" Subject: Re: reiser4 sending process to D state Date: Tue, 16 Aug 2005 14:38:01 +0400 Message-ID: <4301C209.7000302@namesys.com> References: <43012902.1010600@webalive.biz> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: list-help: list-unsubscribe: list-post: Errors-To: flx@namesys.com In-Reply-To: <43012902.1010600@webalive.biz> List-Id: Content-Type: text/plain; charset="us-ascii"; format="flowed" To: mohammad.rahman@webalive.biz Cc: reiserfs-list@namesys.com Hello Mohammad A. Rahman wrote: > Hello, > > I am having an issue with reiser4. I am wondering if it is a known issue > for reiser4 or I have missed something along the path. > > #cat /etc/redhat-release > Red Hat Enterprise Linux ES release 3 (Taroon Update 5) > > Downloaded 2.6.12 vanila kernel, applied mm2 patch (2.6.12-mm2) and then > aapplied reiser4 patch downloaded from namesys for 2.6.12-mm2 > (ftp://ftp.namesys.com/pub/reiser4-for-2.6/2.6.12-mm2/reiser4-vfs-3.patch). > Kernel compiles and boots ok. > > Compiled libaal-1.0.5 and reiser4progs-1.0.5 with ./configure, make and > make install. > > Created reiser4 fs on my disk (/usr/local/sbin/mkfs.reiser4 /dev/sda5) > > Mounted the partition (/dev/sda5 /test > reiser4 defaults 1 2) > > "dmesg | grep reiser" shows: loading reiser4 bitmap......done (181 > jiffies) > > But when I try to write big amount of data on that partition the process > hangs and goes to uninterruptible sleep (D) state. > > the PS output shows: > > root 2375 2.7 0.0 3828 692 pts/1 D 23:21 0:15 cp -i -r > /usr . > > I can easily simulate it with bonnie++ > > bonnie++ -u user:user -d /test -s 4096m -m hudson -n 32:100000:16:256 -b -q > I just tried that on 2.6.12-mm2 + ftp://ftp.namesys.com/pub/reiser4-for-2.6/2.6.12-mm2/reiser4-vfs-3.patch. And I am afraid I was not able to reproduce the problem: Version 1.03 ------Sequential Output------ --Sequential Input- --Random- -Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks-- Machine Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP /sec %CP hudson 4G 17979 81 36327 21 18649 15 16293 70 40979 13 93.0 25 ------Sequential Create------ --------Random Create-------- -Create-- --Read--- -Delete-- -Create-- --Read--- -Delete-- files:max:min /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP 32:100000:16/256 42 5 307 9 203 12 41 5 72 2 22 1 hudson,4G,17979,81,36327,21,18649,15,16293,70,40979,13,93.0,25,32:100000:16/256,42,5,307,9,203,12,41,5,72,2,22,1 can you please provide more information about your environment: amount of ram, SMP or UP, etc.