[Bug 21776] New: 100% CPU after open COM via MSCOMM32.OCX

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=21776

           Summary: 100% CPU after open COM via MSCOMM32.OCX
           Product: Wine
           Version: 1.1.39
          Platform: x86
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: major
          Priority: P2
         Component: -unknown
        AssignedTo: wine-bugs at winehq.org
        ReportedBy: wajim at mail.ru


Created an attachment (id=26331)
 --> (http://bugs.winehq.org/attachment.cgi?id=26331)
Debug Log

It is shown on Wine 1.0.1, 1.1.38, 1.1.39 (Other versions were not tested) \\
Ubuntu 9.10 x86

After opening application COM port through MSCOMM32.OCX there are 100 % of
loading CPU, even at absence of data exchange. Thus the exchange through port
goes normally. After closing COM of port loading on CPU falls down.

See WINEDEBUG = " + comm " log in attach.

How much I know, a problem because of with incorrect realization of function
WaitCommEvent () in Wine.

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