Re: [Freeciv-Dev] building a city always loses connection with server
On 1/14/09, Dominique Leuenberger wrote: On 1/14/2009 at 4:41 PM, "Marko Lindqvist" wrote: >> 2009/1/14 Dominique Leuenberger : >>> Good day everybody, >>> >>> I'm part of the team building RPMs for openSUSE. Today we got a report >>> from >> a user of freeciv that, whenever he creates a city in online mode, his >>> client disconnects. >> >> Which version of gcc? There used to be problem just like this caused >> by gcc 4.2.1 & 4.2.2 miscompilation when optimization level -O2 is >> used. Even if you are using 4.3.x gcc, you may want to test with lower >> optimization level. >> >> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33381 > > Thank you very much for the reply. > The user reported it against openSUSE 11.1, which means it is compiled with > gcc 4.3 This was reported before; for even more information see our ticket: http://bugs.freeciv.org/Ticket/Display.html?id=40610 Stock gcc 4.3 compiles freeciv fine even with -O2 (at least that is true on my system). I suspect that certain distros have added patches to their gcc which are now causing certain code to be miscompiled. -O1 fixes it, but it is possible that disabling just the optimizations caused by the custom patches would also fix the problem. --- 小さな手落ち、大きな結果。 ___ Freeciv-dev mailing list Freeciv-dev@gna.org https://mail.gna.org/listinfo/freeciv-dev
Re: [Freeciv-Dev] building a city always loses connection with server
>>> On 1/14/2009 at 4:41 PM, "Marko Lindqvist" wrote: > 2009/1/14 Dominique Leuenberger : >> Good day everybody, >> >> I'm part of the team building RPMs for openSUSE. Today we got a report from > a user of freeciv that, whenever he creates a city in online mode, his >> client disconnects. > > Which version of gcc? There used to be problem just like this caused > by gcc 4.2.1 & 4.2.2 miscompilation when optimization level -O2 is > used. Even if you are using 4.3.x gcc, you may want to test with lower > optimization level. > > http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33381 Thank you very much for the reply. The user reported it against openSUSE 11.1, which means it is compiled with gcc 4.3 CFLAGS is set to CFLAGS='-march=i586 -mtune=i686 -fmessage-length=0 -O2 -Wall -D_FORTIFY_SOURCE=2 -fstack-protector -funwind-tables -fasynchronous-unwind-tables -fno-strict-aliasing' What Optimization would you recommend? -O1 or -O0? Then: is it fine with you if I copy your reply in our bugzilla tracking system? Dominique ___ Freeciv-dev mailing list Freeciv-dev@gna.org https://mail.gna.org/listinfo/freeciv-dev
Re: [Freeciv-Dev] building a city always loses connection with server
2009/1/14 Dominique Leuenberger: > > What Optimization would you recommend? -O1 or -O0? - O1 should be low enough. > Then: is it fine with you if I copy your reply in our bugzilla tracking > system? Sure - ML ___ Freeciv-dev mailing list Freeciv-dev@gna.org https://mail.gna.org/listinfo/freeciv-dev
Re: [Freeciv-Dev] building a city always loses connection with server
2009/1/14 Dominique Leuenberger : > Good day everybody, > > I'm part of the team building RPMs for openSUSE. Today we got a report from a > user of freeciv that, whenever he creates a city in online mode, his > client disconnects. Which version of gcc? There used to be problem just like this caused by gcc 4.2.1 & 4.2.2 miscompilation when optimization level -O2 is used. Even if you are using 4.3.x gcc, you may want to test with lower optimization level. http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33381 - ML ___ Freeciv-dev mailing list Freeciv-dev@gna.org https://mail.gna.org/listinfo/freeciv-dev
