Technote Number: 1176238
Problem:
This issue was reported to Quality Engineering and has been fixed in Domino
6.0.5 and 6.5.4.
Excerpt from the Lotus Notes and Domino Release 6.0.5 / 6.5.4 MR fix list
(available at http://www.ibm.com/developerworks/lotus):
Networking & Dialup
SPR# RGET5Q5TJL - I/O activity on an IOCP port could stop for up to 4 minutes
while the port control thread waited for a lock. The fix is for the send code
to release its lock while it sleeps between retries.
The issue occurs because the slowdowns are occurring on the NTI layer on
Endp_AcquireToken. The control thread is hung up on Endp_AcquireToken(), and
therefore all other threads that depend on it are hung also. Several threads
are waiting in Endp_Free on the semaphore 2B0C that the control thread has
locked via Endp_AcquireToken(). More >
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