[Bug 5632] New: idle waiting in serial emulation?
Wine Bugs
wine-bugs at winehq.org
Sun Jul 9 07:25:59 CDT 2006
http://bugs.winehq.org/show_bug.cgi?id=5632
Summary: idle waiting in serial emulation?
Product: Wine
Version: 0.9.14.
Platform: PC
URL: http://www.vandyke.com/download/securecrt/
OS/Version: Linux
Status: UNCONFIRMED
Keywords: download
Severity: normal
Priority: P2
Component: wine-misc
AssignedTo: wine-bugs at winehq.org
ReportedBy: molle.bestefich at gmail.com
I need SecureCRT for it's terminal emulation and serial port capabilities.
Download at specified URL (enter any random information in the provided
fields).
I connect to a device on COM1 / 115200n81 / vt102.
If the device on COM1 is generating output, for example if I have set it in
a "while [ true ]; do ls -l; done" loop using eg. minicom, then SecureCRT
works fine and is responsive. It does consume 100% CPU though, 50% goes to
SecureCRT.EXE and 50% to wineserver (on a hyperthreading CPU).
If the device does NOT generate any output, then SecureCRT deadlocks. It
doesn't even repaint it's window, and it's unresponsive to mouse and keyboard
events. In this case, wineserver and SecureCRT.EXE also consumes 50% CPU
each.
AFAICG, the thread that runs the message loop doesn't get enough CPU time,
because SecureCRT and Wine is busy idle waiting somewhere in the serial code.
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