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From:	"Dave Korn" <dave DOT korn AT artimi DOT com>
To:	<cygwin AT cygwin DOT com>
Subject:	RE: emacs (21.2-13) freezing with cygwin 1.5.21-2
Date:	Wed, 9 Aug 2006 17:56:09 +0100
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On 09 August 2006 17:42, Eric Twietmeyer wrote:

> I recently installed the entire cygwin and cygwin/X environment from scratch
> on a new machine.  After some minutes the main thread of emacs.exe
> (according to Sysinternal's Process Explorer) starts consuming all the
> resources of one of the processors on the machine and then is completely
> unresponsive.  

> ntkrnlpa.exe!KiUnexpectedInterrupt+0x121
               ^^^^^^^^^^^^^^^^^^^^^
> ntkrnlpa.exe!KeReleaseInStackQueuedSpinLockFromDpcLevel+0xb74
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

> This is the stack trace of the main thread once it has entered into the
> freeze:
> 
> ntkrnlpa.exe!KiUnexpectedInterrupt+0x121
> ntkrnlpa.exe!ZwYieldExecution+0x1c5e
> hal.dll+0x2ef2
> ntkrnlpa.exe!KeReleaseInStackQueuedSpinLockFromDpcLevel+0xb09
> ntdll.dll!KiFastSystemCallRet
> 
> or sometimes it looks like this:
> 
> ntkrnlpa.exe!KiUnexpectedInterrupt+0x121
> ntkrnlpa.exe!ZwYieldExecution+0x1c5e
> hal.dll+0x2ef2
> hal.dll!KeAcquireQueuedSpinLock+0x5
> ntkrnlpa.exe!NtQueryInformationThread+0x2d3
> ntkrnlpa.exe!KeReleaseInStackQueuedSpinLockFromDpcLevel+0xb74
> ntdll.dll!KiFastSystemCallRet
> cygwin1.dll!memmem+0x4f4

> Any info is of course appreciated, and if I can supply any further
> information that would be helpful, please let me know.


  All those functions scream "Faulty device driver" to me; it appears to be
hanging in a DPC.  Got any dodgy thumbprint readers or logitech webcams
installed?

    cheers,
      DaveK
-- 
Can't think of a witty .sigline today....


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