Re: Spinlocks, yet again: analysis and proposed patches - Mailing list pgsql-hackers

The fact that cmpb isn't helping proves that getting the cache line 
in a
read-only fashion does *not* do enough to protect the xchgb in this 
way.
But maybe another locking instruction would.  Comments?
        regards, tom lane

Hi, Tom!

Possible you help next link
'Replay: Unknown Features of the NetBurst Core'
http://www.xbitlabs.com/articles/cpu/display/replay.html

Best regards,Alexander Kirpa