[ogfs-dev]Checkins to OGFS and ODLM
Hi all,
Yesterday, I checked in an update to the OGFS opendlm lock module,
re-working the treatment of LVBs (these were being "forgotten"
prematurely, resulting in an ASSERT regarding a resource groups MAGIC
number), and re-working some alloc/de-alloc of opendlm_lock and LVB
descriptor structures.
Today, I checked in the Computer Associates stability contributions to
the OpenDLM source tree (thanks again for all of that).
The combination seems much more stable. Mounts/unmounts can now be done
freely on two nodes. And, no more MAGIC assertions, nor seemingly
random oopses (which were apparently due to alloc/de-alloc anomolies).
Still having some problems, though, when trying to untar then remove the
Linux source tree. We'll keep at it. Interestingly enough, things seem
more stable when I'm using a 10 Mbit half-duplex hub, than when I'm
using a 100 Mbit full-duplex router.
Does anyone know why there is *so much LAN traffic* with OpenDLM? This
doesn't seem right. It should be more efficient (less traffic) than
memexp, at least when a lock is not immediately available (memexp just
keeps spinning, but OpenDLM should not need to do that, should it?) ....
... But my LAN LEDs keep lighting up *very actively* long after any
filesystem activity is complete, and it takes longer to do filesystem
stuff with OpenDLM (vs. memexp). Hmmm, I'm hoping that there's a pretty
serious breach of logic in the OpenDLM code that we can clean up.
-- Ben --
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