Xorg 7.0/7.1 lockup on Radeon R200

[Brett Boren]

I'm having a fairly consistent lockup on my radeon 8500 LE (Sapphire)
running on a athlon tbird/via KT133 mobo. It only happens when using GL (XGL
runs for about a minute before the hang). Using GDB I can attach to Xorg
(whose CPU% ~= 99%) and can retrieve the following backtrace:

#0  0xb7d90a14 in ioctl () from /lib/libc.so.6
#1  0xb7c69a72 in drmCommandNone () from
/usr/lib/xorg/modules/linux/libdrm.so
#2  0xb7bb5746 in RADEONWaitForIdleCP ()
   from /usr/lib/xorg/modules/drivers/radeon_drv.so
#3  0xb7a399a8 in XAAInit () from /usr/lib/xorg/modules/libxaa.so
#4  0x080ba20e in xf86XVScreenInit ()
#5  0x080d1c95 in xf86Wakeup ()
#6  0x0808ae62 in WakeupHandler ()
#7  0x08192c87 in WaitForSomething ()
#8  0x08086d93 in Dispatch ()
#9  0x0806e51e in main ()

This seems very similar to Bug 5449 or Bug 1280. As 5449 is marked NEEDINFO
I'm curious if any of the recent work addressed this issue. The last posting
on that bug was over a month ago.

Running on gentoo with the xgl-coffee overlay. Pkg versions:
libdrm 2.1_alpha20060614
xf86-video-ati-6.6.1_p20060625
mesa-6.5.1_alpha20060622

Brett
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