I used Sysinternals' ProcessExplorer to check whether there are an unreasonable high number of handles or threads used, but nothing different from a "good" case. I will check out Process Monitor.

Ah, one more thing which is different between the hosts where the failure suddenly occured, and the hosts where it runs well: The "failing" hosts are virtual ones (i.e. virtual machines), while the "good" hosts are real machines.

-- 
Ronald Fischer <ynnor@mm.st>

In reply to Re^5: qx(....) suddenly failing by rovf
in thread qx(....) suddenly failing by rovf

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