[Bug 453579] Re: in-place corruption of large files *without fsck or reboot* reported with linux 2.6.31-14.46 on ext4
Oliver Seemann
os at oebs.net
Wed Nov 25 19:07:16 UTC 2009
I believe I might have hit this bug. I copied a 3GB iso file from NFS to
a local EXT4 partition and noticed that the sha1sum is off (I only
checked because the burned dvd behaved strange). I copied the file again
and then it got the correct sum.
I still have both files and will keep them for a while in case they can
be of help in analyzing the issue.
I just finished a full memtest86 run and it passed fine.
Some more info:
- Upgraded from jaunty, the fs was created as ext4 by jaunty
- Kernel: 2.6.31-14-generic #48-Ubuntu SMP Fri Oct 16 14:05:01 UTC 2009 x86_64 GNU/Linux
- SATA hdd, no SSD
- Nothing related in dmesg
- Booted from karmic live disc and ran e2fsck /dev/sda1, no errors found.
- ('e2fsck -n /dev/sda1' on mounted fs does report errors, but I assume that is because it is mounted?)
Later I updated the kernel and I have 2.6.31-15-generic #50 running now
and copied a number of 3gb isos again. Now again one of the 4 files has
an incorrect hash. So this update did not fix the bug, but I did not see
anything related in the change log anyway.
Scott, what kernel versions are you referring to, that you cannot
reproduce this anymore?
Let me know if I can provide any further information.
--
in-place corruption of large files *without fsck or reboot* reported with linux 2.6.31-14.46 on ext4
https://bugs.launchpad.net/bugs/453579
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