Re: 2.2.13 ext2 errors

Marc Mutz (Marc@Mutz.com)
Wed, 27 Oct 1999 23:25:49 +0200

Jeff Garzik wrote:
>
> I got a bunch of these last night on an unpatched copy of 2.2.13.
>
Something similar with my box, too.

> Several CVS copies, an egcs build, and 'bzcat|tar xf-' were all running
> in the background, so the single 4GB disk was getting hit pretty hard,
> in addition to NFS and knfsd. Hardware is K6 350,
>
K6-2-300, no NFS (neither k- nor userland), but restoring the content of
my blowfish-encrypted loop device with tar at that time.

<snip error msgs>

Oct 27 00:11:32 adam kernel: EXT2-fs error (device loop(7,0)):
ext2_check_descriptors: Block bitmap for group 128 not in group (block
1048576)!
Oct 27 00:13:27 adam kernel: <dto.>
Oct 27 00:47:16 adam kernel: EXT2-fs error (device loop(7,0)):
ext2_check_descriptors: Block bitmap for group 10 not in group (block
0)!
Oct 27 00:47:33 adam kernel: <dto.>
Oct 27 00:47:45 adam kernel: <dto.>
Oct 27 00:47:56 adam kernel: <dto.>

Never had this with 2.2.12 (current /var/log/messages goes back to
8-sep-99, archived version back to 10-mar-99 with no such message),
although I use my crypto-loop-device daily (contains my mail folder).

I changed the following variables yesterday night:

1.) Updated (2.2.12 with international kernel patch) to (2.2.13 with
additional raid0145 from 24-08-1999 for 2.2.11)
2.) Made the transition from mdtools-0.42 to raidtools-0.90 (24-08-1999
snapshot)
3.) re-made my raid-array thus:
# cat /proc/mdstat
Personalities : [raid0] [raid5]
read_ahead 1024 sectors
md1 : active raid0 sdc5[2] sdb5[1] sda5[0] 3146976 blocks 32k chunks
md2 : active raid5 sdc6[2] sdb6[1] sda6[0] 1048832 blocks level 5, 32k
chunk, algorithm 2 [3/3] [UUU]
md3 : active raid5 sdc7[2] sdb7[1] sda7[0] 524288 blocks level 5, 8k
chunk, algorithm 0 [3/3] [UUU]
md4 : active raid0 sdc8[2] sdb8[1] sda8[0] 1573248 blocks 8k chunks
md5 : active raid5 sdc10[2] sdb10[1] sda10[0] 3828736 blocks level 5,
32k chunk, algorithm 2 [3/3] [UUU]
unused devices: <none>

Previously, they were old-style raid0 and linear devices w/o persistent
sb's. The file containing the crypted fs resides on /dev/md5 and is
currently 1.2Gb. I previously resized the crypted fs multiple times with
the ext2resizer, but the current one was created with the size it has
now.

Marc

-- 
Marc Mutz <Marc@Mutz.com>                    http://marc.mutz.com/
University of Bielefeld, Dep. of Mathematics / Dep. of Physics


PGP-keyID's:   0xd46ce9ab (RSA), 0x7ae55b9e (DSS/DH)




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