Hi all,
I've just recently subscribed and never posted, so I'll give a quick
introduction of myself. I work for Terra Soft Solutions and am the
lead developer of Yellow Dog Linux. This is a rpm-based Linux distro
for PowerPC microprocessors. We tend to track Red Hat fairly closely
and our main hardware platform is Apple machines.
I apologize in advanced for the long-winded nature of this message.
For the last several months we've been tracking XFree86 4.3 development
and I've been using a Apple Power Mac with Radeon 7500 as
my primary workstation.
Recently, I got DRI working on this machine based upon Mike Harris'
4.2.99.4 packages in Red Hat's Rawhide. I got very good performance but
did find some problems. Of note, every time I changed to a virtual
console and then switched back to X, the video hardware locked up,
forcing a reboot (or power down). This is DRI related.. as I can change
consoles just fine using 'fbdev'.
I was able to reproduce this several times and reported it to Michel
Dänzer. However, on the last time it happened, after rebooting
when I started X, I obtained the following strange artifacts:
http://stage.terraplex.com/~dburcaw/radeon.jpg
Note that the X server does not crash, but the system becomes unusable
at the console. Even switching back to the virtual consoles yields
a very similar display.
Now, after a while of using console and 'fbdev', I decided to try
again... instead of the artifacts above (which happened consistently
even after reboots), the X server crashes with:
(II) Loading sub module radeon
(II) LoadModule: radeon
(II) Reloading /usr/X11R6/lib/modules/drivers/radeon_drv.o
(II) resource ranges after probing:
[0] -1 0 0x - 0x (0x1) MX[B]
[1] -1 0 0x - 0x (0x1) MX[B]
[2] -1 0 0xf520 - 0xf53f (0x20) MX[B]
[3] -1 0 0x80081000 - 0x80081fff (0x1000) MX[B]
[4] -1 0 0x80082000 - 0x80082fff (0x1000) MX[B]
[5] -1 0 0x8000 - 0x8007 (0x8) MX[B]
[6] -1 0 0x9002 - 0x9003 (0x2) MX[B](B)
[7] -1 0 0x9000 - 0x9000 (0x1) MX[B](B)
[8] -1 0 0x9800 - 0x9fff (0x800) MX[B](B)
[9] -1 0 0x8008 - 0x8008007f (0x80) MX[B]
[10] 0 0 0x000a - 0x000a (0x1) MS[B]
[11] 0 0 0x000b - 0x000b7fff (0x8000) MS[B]
[12] 0 0 0x000b8000 - 0x000b (0x8000) MS[B]
[13] -1 0 0x - 0x (0x1) IX[B]
[14] -1 0 0x - 0x (0x1) IX[B]
[15] -1 0 0x0400 - 0x04ff (0x100) IX[B](B)
[16] -1 0 0x0400 - 0x047f (0x80) IX[B]
[17] 0 0 0x03b0 - 0x03bb (0xc) IS[B]
[18] 0 0 0x03c0 - 0x03df (0x20) IS[B]
(II) Setting vga for screen 0.
(II) Loading sub module vgahw
(II) LoadModule: vgahw
(II) Loading /usr/X11R6/lib/modules/libvgahw.a
(II) Module vgahw: vendor=The XFree86 Project
compiled for 4.2.99.901, module version = 0.1.0
ABI class: XFree86 Video Driver, version 0.6
(II) RADEON(0): vgaHWGetIOBase: hwp-IOBase is 0x03b0, hwp-PIOOffset is
0x
(II) RADEON(0): PCI bus 0 card 16 func 0
(II) RADEON(0): here 0
(II) UnloadModule: ati
(II) UnloadModule: vgahw
(II) Unloading /usr/X11R6/lib/modules/libvgahw.a
(II) UnloadModule: radeon
(EE) Screen(s) found, but none have a usable configuration.
Fatal server error:
no screens found
You will note that I am now running 4.2.99.901, and 'radeon' still
doesn't work. After the artifacts went away, the above logging also
occurred with 4.2.99.4.
I have managed to debug things a bit and found that radeon_drv.o is
failing due to this condition being met in radeon_driver.c:
if (xf86RegisterResources(info-pEnt-index, 0, ResExclusive))
goto fail;
(in function Bool RADEONPreInit())
Compiling with DEBUG=1, yields some interesting (but foreign to me)
messages from xf86RegisterResources():
(II) Failed Resources after driver initialization for Entity: 0
[0] 0 0 0x0400 - 0x04ff (0x100) I
So, in summary, I have no idea what is going on. X internals are a bit
over my head at this point. This seems to have been triggered by a
DRI-related hardware lock, but please also note that the above (current
state of things) happens with 'radeon' even when DRI is not being
loaded!
I would appreciate any ideas that you all might have as to what the
problem may be or where to go next in debugging this.
Regards,
Dan Burcaw
[EMAIL PROTECTED]
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