Am 2011-05-04 04:18, schrieb Fajar A. Nugraha:
could you give me some advice how to debug/report this specific
problem more
precise?
If it's not reproducible then I'd suspect it'd be hard to do.
the last working snapshot is from 2011-05-02-17:13. i can reproduce this
file system corruption on one specific file in any hourly snapshot later.
whenever i make a simple:
cat snapshot-2011-05-02-18:13/sata-images/image_xy.raw > /dev/null
i get an "Input/output error" and the quoted debug messages in dmesg and
kernel-log
could this be seen as an useful starting point for further investigations?
Usually checksum errors is early sign of hardware failure (most
common are disk or power supply).
that looks very unplausible to me. there is an RAID1 layer beneath btrfs
in our setup and i don't see any errors there.
and the 'nodatasum' option should also ignore csum issues.-- isn't it?
martin
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