On Wed, 06 Apr 2016 01:38:32 +0200 wo...@openmailbox.org wrote: > I'm running Xen 4.6.1 with Alpine Linux 3.3.3 in dom0. In a HVM domU > with vga="qxl", Xorg will segfault instantly if tried started. Multiple > Linux distros have been tested and Xorg segfaults in all. > > Attached are a full backtrace from domU generated by Xorg, and a > assembler dump of function 'sse2_blt'. > > According to Xen IRC channel, the cause could be a bug in the x86 > instruction emulator related to SSE.
I don't believe the x86 emulator is complete wrt the SSE instruction set. But I do wonder why, in your case, these instructions need emulation at all. Unless touching the video RAM requires emulation. Can you try using a different video driver? I see xorg picked up qxl, maybe try vesa? -- Mihai Donțu _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel
