Compling Samba-2.2.5 with spinlocks using Sun Forte C
bogdan at its.uq.edu.au
Tue Aug 6 16:33:02 GMT 2002
David Collier-Brown wrote:
> Adrian LEE wrote:
>>>The code in tdb/spinlock.c related to spin locking on Sparc uses asm
>>>directives. This module won't compile with Sun Forte C compiler.
>>>If you have a patch or similar, or point out I've forgotten to use
>>>a compiler option, to help my solve this problem, it would be
> Andrew Bartlett wrote:
>>Why do you need spinlocks? The asm stuff is only compiled when we have
>>that option specified...
> The standard locks are reccomended, is there a
> problem with them on your site?
According to my information, there *is* an acknowledged problem with
Solaris' fcntl locking causing excessive spins on mutexes. One of the
Sun engineers reccomended us (BTW: Adrian waves HI! from 2 meters away)
as a quick fix to use the spinlocks. Now, IMO that's not a really good
ideea, due to the *much* higher risks of having the whole thing on
I'll send you the internal BugIDs over private mail, since I am not
really sure what's the policy with making them public.
I have seen things you people wouldn't believe. Attack ships on fire
off the shoulder of Orion. I watched C-beams glitter in the dark
near the Tannhauser Gate. All those moments will be lost in time,
like tears in rain. Time to die.
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