id	summary	reporter	owner	description	type	status	priority	milestone	component	version	severity	resolution	keywords	cc
7876	firefox-47.0, was: Firefox crashes often with gcc-6	Pierre Labastie	ken@…	"From Pierre Bechetoille on blfs-dev:
I encountered a new issue with latest firefox compiled with gcc-6.

I had very frequent random crashes. But never in safe mode. I finally found that setting ""javascript.options.baselinejit"" to false in about:config fixes the crashes.

Googling on Firefox JIT compiler problems, I found that:
https://bugzilla.mozilla.org/show_bug.cgi?id=1218925 (crash in js::jit::CodeGenerator::generateBody) and https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70526#c14 (GCC 6 miscompiles Firefox JIT compiler)

I don't know if it is a firefox or a gcc bug, nevertheless I recompiled firefox with the patch given in the first link (addition of -fno-schedule-insns2 to CFLAGS and CXXFLAGS in js/src/Makefile.in) and since I have no more crash !
"	defect	closed	normal	7.10	BOOK	SVN	medium	fixed