Bug 15839

Summary:	Xephyr gets BadDrawable on x86_64 because hostx.c is built with _XSERVER64
Product:	xorg	Reporter:	Aaron Plattner <aplattner>
Component:	Server/DDX/Xephyr	Assignee:	Dodji Seketeli <dodji>
Status:	RESOLVED FIXED	QA Contact:	Xorg Project Team <xorg-team>
Severity:	normal
Priority:	medium	CC:	brian, hub, martin, mpgritti, pascal
Version:	git
Hardware:	x86-64 (AMD64)
OS:	All
Whiteboard:
i915 platform:		i915 features:
Bug Depends on:
Bug Blocks:	10101

Description Aaron Plattner 2008-05-05 16:42:54 UTC

Xephyr fails to run on a Linux x86_64 system because hostx.c is built with _XSERVER64 defined.  It dies with this error:

X Error of failed request:  BadDrawable (invalid Pixmap or Window parameter)
  Major opcode of failed request:  55 (X_CreateGC)
  Resource id in failed request:  0x0
  Serial number of failed request:  7
  Current serial number in output stream:  12

This happens because RootWindow(HostX.dpy, HostX.screen) is returning None.

This broke with this commit:

commit 6a435b00003fb00930299a0e0810c93afc23a72e
Author: Dodji Seketeli <dodji@openedhand.com>
Date:   Wed Sep 19 15:35:51 2007 +0200

    Xephyr: check presence of extensions in host X
    
        * hw/kdrive/ephyr/hostx.c,h:
          (hostx_has_xshape),
          (hostx_has_glx),
          (hostx_has_dri): added these new entry points
        * hw/kdrive/ephyr/ephyrdriext.c:
          (ephyrDRIExtensionInit):
          check presence of DRI and XShape extensions before
          trying to use them.
        * hw/kdrive/ephyr/ephyrglxext.c:
          (ephyrHijackGLXExtension):
          check presence of glx extension before we use it.

which causes that file to include kdrive-config.h, which in turn includes dix-config.h, which defines _XSERVER64.

Comment 1 Martin Dengler 2008-06-09 22:08:32 UTC

I seem to have come across this in Fedora 9.

Comment 2 Dodji Seketeli 2008-06-20 07:35:29 UTC

Okay, if you don't mind, I will look at this.

Comment 3 Martin Dengler 2008-06-29 07:33:12 UTC

Thanks for looking at this!

Comment 4 Pascal Scheffers 2008-07-15 04:49:53 UTC

I'd love to see this fixed. It prevents me from running a working OLPC emulator on my Fedora 9 laptop

Comment 5 Julien Cristau 2008-07-22 12:54:44 UTC

Dodji, any progress on fixing this, or should we just revert the bad commit for 1.5?

Comment 6 Dodji Seketeli 2008-07-22 13:21:44 UTC

I have just got myself an x86_64 box to test this. Before that I didn't have such an environment.

I will be able to test the problem and hopefully come to a solution.

I am very sorry for the delay.

Comment 7 Dodji Seketeli 2008-07-22 16:13:32 UTC

So have committed http://gitweb.freedesktop.org/?p=xorg/xserver.git;a=commit;h=5de1867fbb0a336ff3fdc92cbf734849f6111b1b that seems to fix it for me.

I have also committed a patch to fix various build issues on X86_64.

I hope it works for you.

Comment 8 Hubert Figuiere 2008-07-22 16:54:42 UTC

I applied the patches and now it works here on x86_64

Thanks a lot.

Comment 9 Martin Dengler 2008-08-29 13:34:23 UTC

Just wanted to say thanks - I've been using the rpms at http://koji.fedoraproject.org/koji/buildinfo?buildID=57371 with this patch and it's great.

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