Hi,

Just wondering is anyone else hitting this:

1.4.8 (correctly I guess!) started rejecting locks unless the "flock" mount 
option was used, as per changelog note for bug #10743.  I guess in the
past it faked success but the file wasn't really locked?

Among other things, on RHEL4:
modprobing locks...
rpm locks...
sqlite (and therefore yum) locks...

This has blocked migration to 1.4.8 in our shared root setup. While the < 
1.4.8 behaviour worked okay for us (in so far as most locks don't matter 
all that much anyway and so booting proceeds just fine if they're fake), I 
certainly don't consider it valid for us to have relied on it, so I don't 
consider this bug-fix behaviour change a bug: Obviously, we were 
skating on rather thin ice, but we kind of knew that already...

=> So, what's the latest on file lock support in general in lustre?

Actually using the "flock" mount option doesn't seem to be a solution, as 
AFAIK it's known incomplete in 1.4.x (?): Unless flock is supposed to be 
working fully in 1.4.8, in which case, well, maybe there is a bug to be 
found...














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