bus_dmamem_alloc in drm / radeon

[Kai Lockwood]

I am having nearly the same problem. I startx and the machine ether 
hangs or kernel panics. I tried to look at the crash dumps but I am no 
expert will kgdb.

Brian A. Seklecki wrote:
>
> A highly repeatable situation:
>
> FreeBSD soundwave 6.2-PRERELEASE FreeBSD 6.2-PRERELEASE #0: Wed Sep 13 
> 14:51:18 EDT 2006     root at soundwave:/usr/obj/usr/src/sys/SMP  i386
>
>
> drm0: <ATI Radeon RV280 9250> port 0xdd00-0xddff mem 
> 0xf0000000-0xf7ffffff,0xfe9e0000-0xfe9effff irq 22 at device 1.0 on pci2
> info: [drm] Initialized radeon 1.24.0 20060225
> info: [drm] Setting GART location based on old memory map
>
> ***** bus_dmamem_alloc failed to align memory properly.info:
>
> [drm] Loading R200 Microcode info:
> [drm] writeback test succeeded in 1 usecs
>
> The Xorg process goes solid in ioctl on /dev/dri/card0 presumably
>
>   768 seklecki      1 128    0   149M 10516K RUN      4:56 100.15% Xorg
>
>    768 Xorg     CALL  ioctl(0x8,0x20006444 ,0)
>    768 Xorg     RET   ioctl -1 errno 16 Device busy
>    768 Xorg     CALL  ioctl(0x8,0x20006444 ,0)
>    768 Xorg     RET   ioctl -1 errno 16 Device busy
>    768 Xorg     CALL  ioctl(0x8,0x20006444 ,0)
>    768 Xorg     RET   ioctl -1 errno 16 Device busy
>    768 Xorg     CALL  ioctl(0x8,0x20006444 ,0)
>    768 Xorg     RET   ioctl -1 errno 16 Device busy
>    768 Xorg     CALL  ioctl(0x8,0x20006444 ,0)
>    768 Xorg     RET   ioctl -1 errno 16 Device busy
>    768 Xorg     CALL  ioctl(0x8,0x20006444 ,0)
>    768 Xorg     RET   ioctl -1 errno 16 Device busy
>    768 Xorg     CALL  ioctl(0x8,0x20006444 ,0)
>
> I can provide full dmesg(8) if needed.
>
>
> l8*
>     -lava (Brian A. Seklecki - Pittsburgh, PA, USA)
>            http://www.spiritual-machines.org/
>
> "...from back in the heady days when "helpdesk" meant nothing, 
> "diskquota"
> meant everything, and lives could be bought and sold for a couple of 
> pages
> of laser printout - and frequently were."
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