Bug 11373

Backtrace:

root@santa-rosa2:/etc/X11# gdb Xorg
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This GDB was configured as "x86_64-linux-gnu"...
Using host libthread_db library "/lib/libthread_db.so.1".
(gdb) r
Starting program: /usr/bin/Xorg
[Thread debugging using libthread_db enabled]
[New Thread 47971470273280 (LWP 6198)]

X Window System Version 7.2.0
Release Date: 22 January 2007
X Protocol Version 11, Revision 0, Release 7.2
Build Operating System: Linux Ubuntu
Current Operating System: Linux santa-rosa2 2.6.20-16-generic #2 SMP Wed May 23 00:30:47 UTC 2007 x86_64
Build Date: 04 April 2007
        Before reporting problems, check http://wiki.x.org
        to make sure that you have the latest version.
Module Loader present
Markers: (--) probed, (**) from config file, (==) default setting,
        (++) from command line, (!!) notice, (II) informational,
        (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(==) Log file: "/var/log/Xorg.0.log", Time: Fri Aug 23 02:58:59 2052
(==) Using config file: "/etc/X11/xorg.conf"
[tcsetpgrp failed in terminal_inferior: Operation not permitted]
(WW) intel: No matching Device section for instance (BusID PCI:0:2:1) found
(EE) intel(1): Internal Error: maxCacheLines < 0 in i830_allocate_2d_memory()

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 47971470273280 (LWP 6198)]
i830_allocate_aperture (pScrn=<value optimized out>, name=0x2ba13bcfd9fa "secondary front buffer", size=3276800,
    alignment=65536, flags=0) at ../../src/i830_memory.c:346
346 ../../src/i830_memory.c: No such file or directory.
        in ../../src/i830_memory.c
(gdb) backtrace full

#0 i830_allocate_aperture (pScrn=<value optimized out>, name=0x2ba13bcfd9fa "secondary front buffer", size=3276800,
    alignment=65536, flags=0) at ../../src/i830_memory.c:346
        mem = (i830_memory *) 0x847870
        scan = (i830_memory *) 0x817fd0
#1 0x00002ba13bcd92be in i830_allocate_memory (pScrn=0x0, name=0x320000 <Address 0x320000 out of bounds>, size=8673062,
    alignment=0, flags=0) at ../../src/i830_memory.c:433
        mem = <value optimized out>
#2 0x00002ba13bcda1c2 in i830_allocate_framebuffer (pScrn=0x7e3cb0, pI830=0x817fd0, FbMemBox=<value optimized out>,
    secondary=1, flags=0) at ../../src/i830_memory.c:829
        pitch = 2560
        cacheLines = <value optimized out>
        maxCacheLines = <value optimized out>
        size = 3276800
        fb_height = <value optimized out>
        name = 0x2ba13bcfd9fa "secondary front buffer"
        front_buffer = (i830_memory *) 0x0
#3 0x00002ba13bcda460 in i830_allocate_2d_memory (pScrn=0x7e3480) at ../../src/i830_memory.c:1000
        pI830 = (I830Ptr) 0x7e58d0
#4 0x00002ba13bcd6abf in I830ScreenInit (scrnIndex=0, pScreen=0x846930, argc=<value optimized out>,
    argv=<value optimized out>) at ../../src/i830_driver.c:2332
        savedDisplayWidth = 1280
        pScrn = (ScrnInfoPtr) 0x7e3480
        hwp = <value optimized out>
        pI830 = (I830Ptr) 0x7e58d0
        visual = <value optimized out>
        pI8301 = (I830Ptr) 0x0
        sys_mem = <value optimized out>
        i = 0
        savedMMSize = 32768
        pitches = {1024, 2048, 4096, 8192, 0}
#5 0x0000000000436652 in AddScreen (pfnInit=0x2ba13bcd6650 <I830ScreenInit>, argc=1, argv=0x7fff71ebe898)
    at ../../dix/main.c:805
        i = 0
        scanlinepad = <value optimized out>
        format = 0
        depth = <value optimized out>
        bitsPerPixel = <value optimized out>
        k = <value optimized out>
        pScreen = (ScreenPtr) 0x320000
#6 0x0000000000465098 in InitOutput (pScreenInfo=0x7befa0, argc=1, argv=0x7fff71ebe898)
    at ../../../../hw/xfree86/common/xf86Init.c:924
        i = <value optimized out>
        j = <value optimized out>
---Type <return> to continue, or q <return> to quit---
        k = <value optimized out>
        scr_index = 8675952
        modulelist = <value optimized out>
        optionlist = (pointer *) 0x7dc300
        layout = <value optimized out>
        screenpix24 = <value optimized out>
        pix24 = Pix24Use32
        pix24From = X_DEFAULT
        autoconfig = <value optimized out>
        generation = 1
#7 0x0000000000436e55 in main (argc=1, argv=0x7fff71ebe898, envp=0x7fff71ebe8a8) at ../../dix/main.c:370
        i = 0
        error = 0
        xauthfile = <value optimized out>
        alwaysCheckForInput = {0, 1}

I can't reproduce this bug. Bryce, can you try with the upstream driver? Is there any specific setting in your xorg.conf?

What do you mean "Configure for dual display"?  Can you post your xorg.conf and full X log after the failure?

Dual display works for me on my crestline machine...

Created attachment 10986 [details]
xorg.conf

User's xorg.conf attached.

Also attempted with Card1's BusID set to PCI:0:2:1 with same results.

Created attachment 10987 [details]
Xorg.0.log

Xorg.0.log from after experiencing the bug while using the given xorg.conf.  Includes Backtrace.

*** This bug has been marked as a duplicate of bug 10299 ***