2004-11-05 19:31:04

by dan carpenter

[permalink] [raw]
Subject: ext2/3 issue 2.6 vs 2.4 kernels

I seem to get filesystem corruption whenever I mount a Fedora
Core 2 (2.6.5 kernel) with a RedHat 9 rescue CD (2.4.20) or my
other 2.4.18 rescue media and try to chroot to the system image.
I've tried on a few systems so it's not a hardware issue.

Here are the messages I get in dmesg. They seem file system
related.

EXT3-fs: mounted filesystem with ordered data mode.
attempt to access beyond end of device
08:02: rw=0, want=1219858868, limit=15767797
attempt to access beyond end of device
08:02: rw=0, want=1219858868, limit=15767797

I haven't been able to reliably reproduce the actual file
system corruption that I've seen. Sometimes ls doesn't work
in /bin/ or once I lost everything under /usr.

I've googled for this and I found a redhat bug that might be
related.
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=126730

I have tried with both ext2 and ext3 partitions formatted
under the 2.6 kernel and I get the same results in both cases.

Has something changed in ext2 and ext3 to make them not
backward compatible to 2.4 kernels?

regards,
dan carpenter

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