Your disk went offline somehow.
> and the server start to generate increasingly higher
> loads as it waits for the disk. With ac kernel we were
> forced to reset the machine. After it came up, we've
> noticed in the logs:
Looks like not everything got written before the crash Not impossible
in writeback mode especially with the IDE controller caches involved.
> and see no errors. Ah, it looks like hdm disk isn't in
> the dmesg output anymore:
Maybe it died completely at that point ?
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