[ewg] OFED 1.2 and backwards binary compatibility

[Steffen Persvold]

OFED Team,
 
Is intended that OFED 1.2 verbs library aren't binary backwards compatible ? In 1.2-rc4 libraries are still called :
 
/usr/lib/libibverbs.so.1
/usr/lib/libibverbs.so.1.0.0
/usr/lib64/libibverbs.so.1
/usr/lib64/libibverbs.so.1.0.0

Which is the same as in 1.0 and 1.1 and this indicates binary compatibility (at least to a naive user like myself).

The problem though is that I have applications compiled with OFED 1.0 and 1.1 (those releases are binary compatible btw, as far as my testing goes) that hang when running on OFED 1.2...

 
Some clarification on the policy would be nice. In my opinion, if they no longer are compatible (and a diff of verbs.h indicates that, changes in header structures) OFED 1.2 libraries should be named something else than .so.1.0.0
 
Comments appreciated.
 
Cheers,
Steffen Persvold
Technical Director Americas
tel. 508-281-7100 x401
fax. 508-281-7171

http://www.scali.com/
Scaling the Linux datacenter
 
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