[Pvfs2-users] NFS trouble : magic ahead!

[Emmanuel Florac]

OK, I've been testing again and again, and I found a weeeeeeird bug.
When I say weird, I mean really really of the black magic flavour.

So : still testing this NFS stuff, I tried with various configurations
to sort it out, and it really a PVFS2 problem (tried different clients,
and exporting non-pvfs2 FS from the same server, all OK).

The NFS server exports the pvfs2 FS this way :

/mnt/pvfs2      *(rw,async,no_root_squash,no_subtree_check)

On the client, I mount it and run this into the share :

for i in `seq 1 50` ; do touch test.$i ; done ; echo "created $i" ;
echo -n "listing " ; ls | wc -l

So I create 50 files from test.1 to test.50 and so what? I tried again
and again, and always the same : test.26 is missing in the ls output!
Not any other file. When I create test.1 to test.65536, test.26 is
still missing.

BUT if you type "ls test.26", it shows up just OK. Yeah, that's weird.
Then I do 
rm * ; ls

and it tells me 
test.26

Uh.... 
If I create 2000 files but starting from 100 (test.100 to test.2100),
when I do

rm *; ls

It gives
test.125

Uh, the 26th file, again... This is a very strange modulo 26 bug
indeed :)

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Emmanuel Florac     |   Intellique
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