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