Messages in this thread | | | Subject | Re: ftruncate-mmap: pages are lost after writing to mmaped file. | From | Chris Mason <> | Date | Tue, 24 Mar 2009 10:01:45 -0400 |
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On Tue, 2009-03-24 at 14:26 +0100, Jan Kara wrote: > On Tue 24-03-09 13:55:10, Jan Kara wrote:
> > And one more interesting thing I don't yet fully understand - I see pages > > having PageError() set when they are removed from page cache (and they have > > been faulted in before). It's probably some interaction with pagecache > > readahead... > Argh... So the problem seems to be that get_block() occasionally returns > ENOSPC and we then discard the dirty data (hmm, we could give at least a > warning for that). I'm not yet sure why getblock behaves like this because > the filesystem seems to have enough space but anyway this seems to be some > strange fs trouble as well. >
Ouch. Perhaps the free space is waiting on a journal commit?
-chris
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