[linux-lvm] filesystem errors
Heinz J . Mauelshagen
mauelshagen at sistina.com
Mon Mar 4 04:29:02 UTC 2002
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 at sistina.com
> read the LVM HOW-TO at http://www.sistina.com/lvm/Pages/howto.html
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
Mauelshagen at Sistina.com +49 2626 141200
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