re: lib/53773: xfwm4 crashes with composititing enabled

[matthew green <mrg%eterna.com.au@localhost>]

The following reply was made to PR lib/53773; it has been noted by GNATS.

From: matthew green <mrg%eterna.com.au@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc: lib-bug-people%netbsd.org@localhost, gnats-admin%netbsd.org@localhost,
    netbsd-bugs%netbsd.org@localhost
Subject: re: lib/53773: xfwm4 crashes with composititing enabled
Date: Tue, 11 Dec 2018 11:51:52 +1100

 i'm not sure this is the same, but the GPU is the same generation
 (CEDAR).  i had an uncommon crash in mesa where it would be accessing
 some allocated space but the allocation was smaller than expected,
 in the few cases i debugged closer, the accessses were 128 bytes
 after the end of the actual mapping.  i was guessing some mmap size
 is being truncated and the final page is missed, but i was not able
 to figure out where these allocations were created.
 
 i saw crashes in firefox and mpv mostly, but ksudoku also crashed
 at least once.
 
 i ended up putting a radeon3650 card in my desktop.  (it was also
 silent, and benchmarks roughly 1.5x the speed of the newer CEDAR.)
 
 
 .mrg.