Problem [1.7] diff leads to error msg

[Fergus]

Windows 7, Cygwin [1.7] latest snapshot 20091012.
Comparing two large subdirectories with diff leads to error msg.
Output from cygcheck -srv attached.

~> diff -rq /d/home /m/home
       6 [main] diff 3720 sig_send: error sending signal -34 to pid 
3720, pipe handle 0x10C, Win32 error 998
 5069911 [main] diff 3720 sig_send: error sending signal -34 to pid 
3720, pipe handle 0x10C, Win32 error 998
13992405 [main] diff 3720 sig_send: error sending signal -34 to pid 
3720, pipe handle 0x10C, Win32 error 998

Any ideas? Unfortunately this error is intermittent. Sometimes (usually, 
actually) I can perform the identical comparison without any obvious 
glitches. It may be another (or related) manifestation of a bad 
interplay between W7, Cygwin and McAfee in the workplace, previously 
reported.

(See in particular http://cygwin.com/ml/cygwin/2009-10/msg00385.html. 
This is really ruining my Cygwin experience. Needless to say, merely 
offering this as a hypothesis - that McAfee is to blame - to local IT 
chieftains, went down pretty badly.)

Fergus

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