On Sun, Jul 30, 2017 at 11:49 AM, Dimitry Andric <dimi...@andric.com> wrote: > Some compilers (e.g. clang) will recognize the memcpy idiom in > xf86SlowBcopy(), and optimize it into a loop using SSE instructions. > This can cause "Illegal instruction" crashes under virtualization > environments such as qemu/kvm. > > To prevent this, explicitly turn off SSE for SlowBcopy.c, when compiling > for an x86 target. > > See also: https://bugs.freebsd.org/202643
Thanks. This is also reported in Gentoo's bug tracker as well: Bugzilla: https://bugs.gentoo.org/570684 _______________________________________________ xorg-devel@lists.x.org: X.Org development Archives: http://lists.x.org/archives/xorg-devel Info: https://lists.x.org/mailman/listinfo/xorg-devel
