https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68853
--- Comment #4 from Markus Trippelsdorf <trippels at gcc dot gnu.org> --- (In reply to Richard Biener from comment #3) > Can you bisect it to the alias changes from Honza or is this older? The first issue is older. At least a few weeks. I don't have a powerful enough machine to bisect this and the compile farm machines cannot build Chromium, because of missing libraries. (I've seen the second issue for the first time today.) > Is this part of chromium single-threaded? If you start chromium with: google-chrome --no-sandbox --renderer-cmd-prefix='xterm -title renderer -e gdb -ex run --args' it will attach a debugger to every started thread. The segfault happens in one of them.