On Sat, Oct 21, 2006 at 06:52:06PM +0100, Ben Hutchings wrote: > On Sat, 2006-10-21 at 12:08 -0400, Ryan Richter wrote: > > On Sat, Oct 21, 2006 at 10:18:41AM +0200, Michel Dänzer wrote: > > > On Fri, 2006-10-20 at 12:47 -0400, [EMAIL PROTECTED] wrote: > > > > Package: libgl1-mesa-dri > > > > Version: 6.5.1-0.2 > > > > Severity: normal > > > > > > > > The current build contains a faulty i965_dri.so causing all GL clients > > > > to crash and lock up the display. This is apparently caused by a > > > > miscompilation with gcc-4.1. Rebuilding with gcc-3.4 fixes the problem. > > > > > > Ben, do you happen to know whether this was built with > > > -fno-strict-aliasing? If not, that might be worth a try, as the Mesa > > > code generally isn't strict aliasing safe. > > > > I can't find -fno-strict-aliasing anywhere in configs/debian*, so I > > don't think anything is built with that. > > I didn't modify any of the build options, so I suppose I can't have used > -fno-strict-aliasing. Unfortunately pbuilder doesn't log (or I have not > configured it to, if that's possible). > > You had better try that because I don't have any machine with an i965 to > test on.
Yep, adding -fno-strict-aliasing makes it work with gcc-4.1. patch diff -Naur mesa-6.5.1/configs/debian mesa-6.5.1-fnsa/configs/debian --- mesa-6.5.1/configs/debian 2006-10-23 13:44:20.000000000 -0400 +++ mesa-6.5.1-fnsa/configs/debian 2006-10-23 13:45:14.583335930 -0400 @@ -7,9 +7,9 @@ DEBIAN_COMMON_CPPFLAGS = -D_POSIX_SOURCE -D_POSIX_C_SOURCE=199309L -D_SVID_SOURCE -D_BSD_SOURCE -D_GNU_SOURCE -DUSE_XSHM -DPTHREADS `pkg-config --cflags x11 xext` -DEBIAN_COMMON_CFLAGS = -std=c99 -pedantic -Wall -fPIC +DEBIAN_COMMON_CFLAGS = -std=c99 -pedantic -Wall -fPIC -fno-strict-aliasing -DEBIAN_COMMON_CXXFLAGS = -ansi -pedantic -Wall -fPIC +DEBIAN_COMMON_CXXFLAGS = -ansi -pedantic -Wall -fPIC -fno-strict-aliasing DEBIAN_OPT_CFLAGS = -O2 diff -Naur mesa-6.5.1/configs/debian-static mesa-6.5.1-fnsa/configs/debian-static --- mesa-6.5.1/configs/debian-static 2006-10-23 13:44:20.000000000 -0400 +++ mesa-6.5.1-fnsa/configs/debian-static 2006-10-23 13:45:19.624665242 -0400 @@ -7,9 +7,9 @@ DEBIAN_COMMON_CPPFLAGS = -D_POSIX_SOURCE -D_POSIX_C_SOURCE=199309L -D_SVID_SOURCE -D_BSD_SOURCE -DUSE_XSHM -DPTHREADS -I/usr/X11R6/include -DEBIAN_COMMON_CFLAGS = -std=c99 -pedantic -Wall +DEBIAN_COMMON_CFLAGS = -std=c99 -pedantic -Wall -fno-strict-aliasing -DEBIAN_COMMON_CXXFLAGS = -ansi -pedantic -Wall +DEBIAN_COMMON_CXXFLAGS = -ansi -pedantic -Wall -fno-strict-aliasing DEBIAN_OPT_CFLAGS = -O2 -ryan -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
