Fedora 29 Xorg crash with 415.18

I am having Xorg crash problems with nvidia driver 415.18 on Fedora 29 (Xorg 1.20.3, kernel 4.19.5):

Dec 6 08:19:09 localhost /usr/libexec/gdm-x-session[1588]: (EE) Backtrace:
Dec 6 08:19:09 localhost /usr/libexec/gdm-x-session[1588]: (EE) 0: /usr/libexec/Xorg (OsLookupColor+0x13d) [0x55e31b2860fd]
Dec 6 08:19:09 localhost /usr/libexec/gdm-x-session[1588]: (EE) 1: /lib64/libpthread.so.0 (funlockfile+0x50) [0x7f3a482f00bf]
Dec 6 08:19:09 localhost /usr/libexec/gdm-x-session[1588]: (EE) 2: /usr/lib64/xorg/modules/drivers/nvidia_drv.so (nvidiaAddDrawableHandler+0x39457) [0x7f3a47036097]
Dec 6 08:19:09 localhost /usr/libexec/gdm-x-session[1588]: (EE) unw_get_proc_name failed: no unwind info found [-10]
Dec 6 08:19:09 localhost /usr/libexec/gdm-x-session[1588]: (EE) 3: /usr/lib64/xorg/modules/drivers/nvidia_drv.so (?+0x0) [0x7f3a46fa8290]
Dec 6 08:19:09 localhost /usr/libexec/gdm-x-session[1588]: (EE) 4: /lib64/libGLdispatch.so.0 (nvidiaAddDrawableHandler+0x4f8d94) [0x7f3a479b5318]
Dec 6 08:19:09 localhost /usr/libexec/gdm-x-session[1588]: (EE)
Dec 6 08:19:09 localhost /usr/libexec/gdm-x-session[1588]: (EE) Segmentation fault at address 0x7f3a44178000
Dec 6 08:19:09 localhost /usr/libexec/gdm-x-session[1588]: (EE)
Dec 6 08:19:09 localhost /usr/libexec/gdm-x-session[1588]: Fatal server error:
Dec 6 08:19:09 localhost /usr/libexec/gdm-x-session[1588]: (EE) Caught signal 11 (Segmentation fault). Server aborting
Dec 6 08:19:09 localhost /usr/libexec/gdm-x-session[1588]: (EE)

Any thoughts on fixing this problem? This mostly happens when running applications with wine.

Thanks,

Jussi Eloranta
nvidia-bug-report.log.gz (1.05 MB)

OK, this problem goes away by downgrading the X server to 1.19.x:

dnf --allowerasing --releasever=28 downgrade xorg-x11-server-Xorg

However, there is then another issue which hard crashes the system under certain situations. Need to investigate more.