[Unionfs] unionfs with mmap support breaks apt-get

[Michael Prokop]

Hello,

starting with mmap support in unionfs the current cvs snapshots
cause problems with apt-get on Debian running kernel 2.6.16.

Running 'apt-get update; apt-get upgrade' results in:

[...]
E: I wasn't able to locate file for the $FOO package. This might
mean you need to manually fix this package.

I had no time to take a closer look at apt's sources, but it
definitely uses mmap. So far I just tracked down that it's related
to the mmap support within unionfs:

cvs snapshot 20060304-1620: works
cvs snapshot 20060318-2334: does not work (error message as mentioned above)
cvs snapshot 20060322-0043: does not work (error message as mentioned above)

JFYI && regards,
-mika-
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