[Bug 89034] Firefox crashing xserver and some major rendering bugs

https://bugs.freedesktop.org/show_bug.cgi?id=89034

--- Comment #6 from smoki smoki00790@gmail.com --- (In reply to Michel Dänzer from comment #3)

Then something like

startx [...] 2>stderr.txt

should capture the stderr output in a file.

Actually that one drop something, this is with debug+assertion enabled llvm when monitor just gooes to "sleep" after starting firefox... seems like usefull :) ?

X: TargetRegisterInfo.cpp:189: virtual const llvm::TargetRegisterClass* llvm::TargetRegisterInfo::getMatchingSuperRegClass(const llvm::TargetRegisterClass*, const llvm::TargetRegisterClass*, unsigned int) const: Assertion `A && B && "Missing register class"' failed.