Date: Sat, 05 Sep 2015 11:58:33 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-x11@FreeBSD.org Subject: [Bug 202643] x11-servers/xorg-server: illegal instruction starting xorg in FreeBSD >10.x in kvm/qemu virtualization Message-ID: <bug-202643-8047-YRb9oIDYA9@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-202643-8047@https.bugs.freebsd.org/bugzilla/> References: <bug-202643-8047@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=202643 --- Comment #29 from commit-hook@freebsd.org --- A commit references this bug: Author: dim Date: Sat Sep 5 11:57:53 UTC 2015 New revision: 396167 URL: https://svnweb.freebsd.org/changeset/ports/396167 Log: Disable use of SSE instructions in Xorg's xf86SlowBcopy() function. When such instructions are used to copy data from/to mapped video memory, some hypervisors (e.g. KVM, Microsoft Hyper-V) can generate SIGILL or SIGBUS exceptions, causing Xorg to crash. Reported by: nogcjx@fastmail.fm Approved by: x11 (bapt) PR: 202643 MFH: 2015Q3 Changes: head/x11-servers/xorg-server/Makefile head/x11-servers/xorg-server/files/patch-Xserver-hw-xfree86-os-support-misc-Makefile.in -- You are receiving this mail because: You are the assignee for the bug.
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