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Subject DO NOT REPLY [Bug 44454] busy count reported in mod_jk inflated, causes incorrect balancing
Date Tue, 22 Jun 2010 02:45:00 GMT

--- Comment #19 from William A. Rowe Jr. <> 2010-06-21 22:44:52 EDT
Studying this at length; the locking mechanism is not the issue.  fcntl() 
is likely the most reliable (not fastest) and flock(), which is not used by
default, would be far less reliable as it isn't supported by nas solutions.

The faulty assumption that 'volatile' magically enables atomic math operations
on smb environments is the issue.  'int64' is not atomic on any platform, and
it would appear that 'int' increments are acting appropriately for affected
while their decrements are failing.

All operations on the scoreboard must be mutexed.

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