[SLUG] delete crashes ...

["Tiwari, Rajnish" <Rajnish.Tiwari@xxxxxxxxx>]

hi All,

	I have a multithreaded c/c++ app containing a simple
(self-developed)
	queue. 3 operations -'insert(..)',  'retrieve()' & 'length()'.
	As part of 'retrieve' a call to 'delete' is made to remove the
	head of the queue. Only 2 threads ever use this queue - strictly one
for
	inserting and another for retrieving ( and yes access is mutex
protected
	on all 3 operations ).

	Although very _infrequent_, the problem is that the call
	to delete in retrieve causes segmentation violation. It is a real
nuisance as
	one may run the app many times without fail but on some occassions 
	it fails. 

	Has anyone encountered/resolved simliar problems in anyother app ? 
	Could this issue be the result of word alignment ? 
	I suspect a memory corruption - but I cannot seem to figure out 
	when/where/how it could happen.

	One characteristic of the app is that this queue is hammered quite
	intensively - both inserts and retrieves.

	Any hints much appreciated. Thanks in advance.

Regards,
Rajnish