[Bug 930551] Re: System with quota enabled hangs after upgrade to 11.10

[Thomas Schweikle]

It doesn't really hang, but recalculates the quota, waiting until this
process is done, but doesn't inform the user about what is going on ...
:-(

On a machine equipped with about 4TiB hd space, this process can take
some time (hours). Depending on how many files are stored. After this
process ran once, blocking start up, it will run much faster later on,
if it was done successfully once (minutes).

Quota recalculation does get really slow if volumes above 2T are
involved. If I keep them beyond 2T all is OK, but increasing the size
makes things bad. I am not sure about if it is a quota problem, or a lvm
problem. Maybe both, since I could not find same effects if quota isn't
used and volumes are above 2T.

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https://bugs.launchpad.net/bugs/930551

Title:
  System with quota enabled hangs after upgrade to 11.10

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