Attempting to track down radeon driver issue(s)?

Alex Deucher alexdeucher at
Tue May 5 09:38:50 PDT 2009

On Tue, May 5, 2009 at 12:28 PM, Lowell Alleman
<lowell at> wrote:
> Hello all,
> I've got my X server stuck in some kind of loop that is using up nearly %100
> of the CPU.  I have a remote ssh connection and I'm running gdb against it.
> I've very unfamiar with debugging at this level, but I really want to
> anything I can to help track down some X issues I'm been hitting.
> I turned on drm kernel debugging for awhile, and I see this group of errors
> repeated over and over again:
> [ 9812.879383] [drm:drm_ioctl] pid=3917, cmd=0x6444, nr=0x44, dev 0xe200,
> auth=1
> [ 9812.879388] [drm:radeon_cp_idle]
> [ 9812.879390] [drm:radeon_do_cp_idle]
> [ 9813.035795] [drm:radeon_do_wait_for_idle] wait idle failed status :
> 0x80010140 0x00000000
> [ 9813.035798] [drm:drm_ioctl] ret = fffffff0

Your GPU has locked up.  The trick is finding what combination of
commands and state caused the lockup.


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