seg fault in Fedora 25 with all desktop managers marco error 4 in libX11-xcb.so.1.0.0

[Robert Kudyba]

> On Apr 4, 2017, at 4:16 PM, Thomas Lübking <thomas.luebking at gmx.de> wrote:
> 
> On Tue, Apr 04, 2017 at 10:21:39AM -0400, Robert Kudyba wrote:
> 
>> Rebooted. Still seg fault. I created a Bugzilla entry at https://urldefense.proofpoint.com/v2/url?u=https-3A__bugzilla.redhat.com_show-5Fbug.cgi-3Fid-3D1438059&d=DwIBAg&c=aqMfXOEvEJQh2iQMCb7Wy8l0sPnURkcqADc2guUW8IM&r=X0jL9y0sL4r4iU_qVtR3lLNo4tOL1ry_m7-psV3GejY&m=lLumi79oUWRAOU9fyQpiqgwvQ6pmV3e9jNoSlafE1pw&s=xkvQMEBK9xkiD59MSEdRxlDBpVlq5RmiKX55kp2m3Ds&e= 
> 
> 
> Just a hunch but you're loading the (builtin) modesetting driver, vesa
> and fbdev and they're apparently all in the process of probing the HW
> and then you run into a pciaccess segfault.
> 
> => try uninstalling xf86-video-vesa and xf86-video-fbdevhw (so you'll
> only use the modesetting driver since apparently modesetting itself
> seems to work and you don't have xf86-video-ati installed) and see
> whether that makes any difference.

Ran:
dnf remove xorg-x11-drv-vesa
dnf remove xorg-x11-drv-fbdev

Still:
systemd-coredump: Process 17491 (Xorg) of user 0 dumped core.#012#012Stack trace of thread 17491:#012#0  0x00000000b77cacf9 __kernel_vsyscall (linux-gate.so.1)#012#1  0x00000000b710e9a0 raise (libc.so.6)#012#2  0x00000000b7110067 abort (libc.so.6)#012#3  0x0000000008205f9a OsAbort (Xorg)#012#4  0x00000000080c4afc ddxGiveUp (Xorg)#012#5  0x00000000080c4b9b AbortDDX (Xorg)#012#6  0x000000000820c6f2 AbortServer (Xorg)#012#7  0x000000000820d10f FatalError (Xorg)#012#8  0x0000000008202c18 OsSigHandler (Xorg)#012#9  0x00000000b77cad10 __kernel_rt_sigreturn (linux-gate.so.1)#012#10 0x00000000b74ec290 pci_device_next (libpciaccess.so.0)#012#11 0x00000000b74ec358 pci_device_find_by_slot (libpciaccess.so.0)#012#12 0x00000000b74ee7a7 pci_device_vgaarb_init (libpciaccess.so.0)#012#13 0x00000000080e05c5 xf86VGAarbiterInit (Xorg)#012#14 0x00000000080b7868 xf86BusConfig (Xorg)#012#15 0x00000000080c695d InitOutput (Xorg)#012#16 0x000000000807eaca dix_main (Xorg)#012#17 0x0000000008066b9f main (Xorg)#012#18 0x00000000b70f81c6 __libc_start_main (libc.so.6)#012#19 0x0000000008066bc5 _start (Xorg)

> Also see eg. https://urldefense.proofpoint.com/v2/url?u=https-3A__bugs.freedesktop.org_show-5Fbug.cgi-3Fid-3D81678&d=DwIBAg&c=aqMfXOEvEJQh2iQMCb7Wy8l0sPnURkcqADc2guUW8IM&r=X0jL9y0sL4r4iU_qVtR3lLNo4tOL1ry_m7-psV3GejY&m=lLumi79oUWRAOU9fyQpiqgwvQ6pmV3e9jNoSlafE1pw&s=TFZWzqKX3RKtCLa9YDCJObUsQreUUgckDRfwHmnoeV8&e=  and
> google for pci_device_vgaarb_init - this seems a quite common issue…

Not sure what I’m looking for?
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