I just compiled dovecot 1.0.2 (IMAP mail server) on a SunFire V20z (opteron) platform using Sun Studio Version 12. The result was that the imap process of dovecot ran (functioned) but sucked up all the cpu resources.

So I built a debug version of dovecot to track down the problem, but the debug version behaved properly. So, I played with compiler switches.

-fast -m64 -- eats up cpu
-xO5 -m64 -- runs fine.

Just thought I'd bring it to your attention.

Gary

 

 

Not neccesary a bug, but thanks anyway.

-fast includes several agresiive optimizations (such as -fsimple=2, or
-xalias_level=basic) which require the user code to follow some rules
or not to depend on the nuances of the semantics.

You can use -# (for cc) or -v (for CC) to check which options are incuded in -fast.