Re: pkg/51122 (ffmpeg[23] compiled with gcc 5.x on x86 32-bit can lead to crashes)

[Onno van der Linden <o.vd.linden%quicknet.nl@localhost>]

The following reply was made to PR pkg/51122; it has been noted by GNATS.

From: Onno van der Linden <o.vd.linden%quicknet.nl@localhost>
To: gnats-bugs%netbsd.org@localhost
Cc: 
Subject: Re: pkg/51122 (ffmpeg[23] compiled with gcc 5.x on x86 32-bit can
 lead to crashes)
Date: Sun, 26 Jun 2016 11:14:27 +0200

 Tried 
 https://www.facebook.com/spotlightuse.jp/videos/938866406181882/?theater
 as mentioned in https://trac.ffmpeg.org/ticket/5231
 
 with ffmpeg3-3.0.2nb2 compiled and installed with the following
 set of extra cflags
 
 -mstackrealign -mpreferred-stack-boundary=4  : no crash
 -mpreferred-stack-boundary=4                 : no crash
 none of the flags above                      : crash
 
 this is with gcc version 5.4.0 (nb1 20160606) on
 NetBSD/i386 7.99.31
 
 Maybe -mstackrealign isn't needed for NetBSD/i386
 but what about gcc 4.x for x >= 2 ?
 
 And this is only *1* testcase .......