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https://bugs.freedesktop.org/show_bug.cgi?id=4669          
     
           Summary: Xorg hangs when dri is enabled
           Product: DRI
           Version: DRI CVS
          Platform: Other
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: DRM modules
        AssignedTo: [email protected]
        ReportedBy: [EMAIL PROTECTED]


Some time ago I update my system to modular X (7.0.0 RC0 from Gentoo portage) 
and Xorg starts to hang when I have dri enabled in my xorg.conf file (http://
www.tbs-software.com/morgoth/files/private/drm/xorg.conf).

I did some tests and this problem seems to be random. Sometimes xorg starts 
with 
dri without any problems and sometimes it lockup the machine completly (Only 
emergency reboot help here) I use Pegasos II machine with 1GB of ram (HighMem 
enabled) and G4 1GHz CPU. My card is Radeon 9000 card with 
128MB/128Bit/DVD/VIVO 
(Take a look at http://www.tbs-software.com/morgoth/files/private/drm/lspci.txt)

I enable a drm debug and notice a nice fllod in syslog with:

========
........
[drm:drm_ioctl] pid=8363, cmd=0x20006444, nr=0x44, dev 0xe200, auth=1
[drm:radeon_cp_idle]
[drm:radeon_do_cp_idle]
[drm:drm_ioctl] ret = fffffff0
........
========

The complete log can be found at (http://www.tbs-software.com/morgoth/files/
private/drm/dri-syslog.txt) also I upload the XOrg.log from faulty startup 
(http://www.tbs-software.com/morgoth/files/private/drm/Xorg.0.log)

I test using slighy patched 2.6.13 and a vanilla kernel with identical result. 
Also today I give a try to drm cvs snapshot ... same.

BTW I was able to found almost identical log (with the same problem) on net 
(http://www.gg3.net/~chutz/gentoo/xorg/kernel.log.txt), but I have no ideas who 
produce it ;(          
     
     
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