On 2018-06-01 10:10 AM, Agustin Martin Domingo wrote: > Package: xserver-xorg-core > Version: 2:1.20.0-2 > Severity: important > > Dear Maintainer, > > After 2:1.19.6-1 -> 2:1.20.0-2 xfce4-session+nouveau segfaults on startup > and cannot start sesion. Trying to start it manually with startxfce4 > fails giving > > > (EE) > (EE) Backtrace: > (EE) 0: /usr/lib/xorg/Xorg (xorg_backtrace+0x4d) [0x555e574106fd] > (EE) 1: /usr/lib/xorg/Xorg (0x555e5725d000+0x1b73b9) [0x555e574143b9] > (EE) 2: /lib/x86_64-linux-gnu/libpthread.so.0 (0x7fc78ff70000+0x11f50) > [0x7fc78ff81f50] > (EE) 3: /usr/lib/xorg/Xorg (miRenderColorToPixel+0xe) [0x555e57384a9e] > (EE) 4: /usr/lib/xorg/modules/libexa.so (0x7fc78c9e0000+0xf12b) > [0x7fc78c9ef12b] > (EE) 5: /usr/lib/xorg/Xorg (0x555e5725d000+0x13a786) [0x555e57397786] > (EE) 6: /usr/lib/xorg/Xorg (0x555e5725d000+0x12eaec) [0x555e5738baec] > (EE) 7: /usr/lib/xorg/Xorg (0x555e5725d000+0x5b008) [0x555e572b8008] > (EE) 8: /usr/lib/xorg/Xorg (0x555e5725d000+0x5f008) [0x555e572bc008] > (EE) 9: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xe7) > [0x7fc78fbd1a87] > (EE) 10: /usr/lib/xorg/Xorg (_start+0x2a) [0x555e572a5d0a] > (EE) > (EE) Segmentation fault at address 0x8 > (EE) > Fatal server error: > (EE) Caught signal 11 (Segmentation fault). Server aborting > (EE) > (EE) > Please consult the The X.Org Foundation support > at http://wiki.x.org > for help. > (EE) Please also check the log file at "/var/log/Xorg.2.log" for additional > information. > (EE) > (II) AIGLX: Suspending AIGLX clients for VT switch > (EE) Server terminated with error (1). Closing log file. > > > No problem with icewm and probably other windows managers. > > I have googled a bit about this problem and found a recent message in > debian-user about this very same problem, > > [upgrade to X 1.20.0 broken] > https://lists.debian.org/debian-user/2018/05/msg01008.html > > Problem has been confirmed by some people in that thread and it is suggested > to be triggered by the Xfce compositor > > https://lists.debian.org/debian-user/2018/05/msg01035.html > > As a matter of fact, if I disable the compositor, problem goes away. > > I am filing this bug report against xserver-xorg-core because in other > reference about this problem in slackware, > > https://www.linuxquestions.org/questions/slackware-14/slackware-current-xorg-server-1-20-0-with-xf86-video-nouveau-segfaults-4175629581/ > > they suggests that it may be the real cause, with a a fatal interaction > between the "compositor" option of xfwm4 and xorg-server-1.20.0. It is also > noted that this may be a problem not only with the nouveau driver, but also > with radeon driver, both with xfce4.
It would happen with anything using EXA. https://patchwork.freedesktop.org/patch/226573/ fixes it. -- Earthling Michel Dänzer | http://www.amd.com Libre software enthusiast | Mesa and X developer
