From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Heinz J . Mauelshagen" Subject: Re: [linux-lvm] filesystem errors Message-Id: <20020304112801.D10007@sistina.com> References: MIME-Version: 1.0 In-Reply-To: ; from dzila@tassadar.physics.auth.gr on Fri, Mar 01, 2002 at 03:56:04PM +0200 Sender: linux-lvm-admin@sistina.com Errors-To: linux-lvm-admin@sistina.com Reply-To: linux-lvm@sistina.com List-Help: List-Post: List-Subscribe: , List-Unsubscribe: , List-Archive: Date: Mon Mar 4 04:29:02 2002 List-Id: Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-lvm@sistina.com On Fri, Mar 01, 2002 at 03:56:04PM +0200, Dimitris Zilaskos wrote: > > Hello , > I have setup an lvm consisted of 10 loopback attached files which are > exported with samba from windows2000 workstations . Occasionaly , during > write operations i get messages like the following > > > EXT2-fs error (device lvm(58,0)): read_inode_bitmap: Cannot read inode > bitmap - block_group = 1521, inode_bitmap = 49840129 > EXT2-fs error (device lvm(58,0)): read_block_bitmap: Cannot read block > bitmap - block_group = 1521, block_bitmap = 49840128 > > after that i must perform a umount and filesystem check which finds and > fixes some errors . Data is usually only slightly damaged . Read operations > work fine no matter how intensive they are . > > On kernel 2.4.16 , there were no such errors but there were oopses , again > during write operations . From 2.4.17 to the 2.4.18-ac1 i am using now , > the ext2 errors showed up . The lvm tools version is 1.0.3 . All kernels > are smp . > I did several huge transfers between the workstations and the linux box , > as well as pings with big packets to make sure the networking is ok , and > it seems to be . No packetloss with 65000 bytes packets ,no suspicious > delays . I really want to track this problem down . Any help is > appreciated . Because you mention *huge* transfers the usual suspect is the VM subsystem IMO. Did you try 2.4.<10 which didn't have the faulty VM subsystem? > > Kind regards > > -- > ============================================================================= > > Dimitris Zilaskos > > Department of Physics @ Aristotle Univercity of Thessaloniki , Greece > ============================================================================= > > > _______________________________________________ > linux-lvm mailing list > linux-lvm@sistina.com > http://lists.sistina.com/mailman/listinfo/linux-lvm > read the LVM HOW-TO at http://www.sistina.com/lvm/Pages/howto.html -- Regards, Heinz -- The LVM Guy -- *** Software bugs are stupid. Nevertheless it needs not so stupid people to solve them *** =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Heinz Mauelshagen Sistina Software Inc. Senior Consultant/Developer Am Sonnenhang 11 56242 Marienrachdorf Germany Mauelshagen@Sistina.com +49 2626 141200 FAX 924446 =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-