[ ghc-Bugs-1212812 ] Segfault on MVar-abuse

[SourceForge.net]

Bugs item #1212812, was opened at 2005-06-01 17:35
Message generated for change (Tracker Item Submitted) made by Item Submitter
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=108032&aid=1212812&group_id=8032

Please note that this message will contain a full copy of the comment thread,
including the initial issue submission, for this request,
not just the latest update.
Category: None
Group: 6.4
Status: Open
Resolution: None
Priority: 5
Submitted By: Volker Stolz (volkersf)
Assigned to: Nobody/Anonymous (nobody)
Summary: Segfault on MVar-abuse

Initial Comment:
The attached program segfaults using 6.4 on FreeBSD at the 2nd 
takeMVar. Sorry, no HEAD to test with atm (I understand that the 
program might be strechting the limits a bit ;).
Other interesting effects can be observer, e.g. a rather unexpected 
"threads blocked indefinetely" when commenting out both lines (1) & 
(2) OR having both lines activated.

----------------------------------------------------------------------

You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=108032&aid=1212812&group_id=8032