[Bug: 21.4.20] Killing a large number of characters in shell mode hangs xemacs

[Stephen J. Turnbull]

Aidan Kehoe writes:

 >  > Any thoughts on how to tackle this would be appreciated.
 > 
 > Attach to the process with gdb, then type bt to get an idea what the C code
 > is doing.

He could also just try setting `x-selection-strict-motif-ownership' to
nil, since he's building with Motif.