This is the mail archive of the cygwin-talk mailing list for the cygwin project.


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]
Other format: [Raw text]

Re: FW: Looking for basic documentation on Cygwin and Serial Ports


Dave Korn wrote:
  As to the lock up crash, I think that it's just a rare-enough race condition
that you wouldn't expect to see it except once in (quite a lot of traffic)
times.  It's a bad one, though: the screen goes black and the PC stops
responding, as if it had dropped into a standby or hibernate state.  Except
that it doesn't respond to anything you do to try and wake it, including
hitting the soft power button, pressing keys or moving the mouse, and plugging
or unplugging USB devices (which sometimes helps flush through the system when
its gone wrong by triggering interrupts and other IO activity).

Okay, I lied. That /did/ happen to me once -- but I didn't blame the FTDI driver. I blamed my five year old laptop that had never been defragged or had its OS refreshed. <g>


I had to remove the battery, and then deliberately unplug the PS. Laptops don't really have anything other than a soft reset button which they call a "power" button. But it takes software somewhere to recognize "Oh, he held the 'power' button down for five seconds -- that means actually shut off now"

Unless your power management settings say that it means hibernate, instead. Like mine did. yeesh.

Oh, and they appear to be none too reliable downstream of hubs either.

That was my configuration when the above occurred.


--
Chuck


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]