Sleeping on "itrmh" with the following non-sleepable locks held:

John Baldwin jhb at
Wed Jun 30 11:19:51 PDT 2004

On Wednesday 30 June 2004 08:36 am, Andre Guibert de Bruet wrote:
> Hello,
> I managed to get the following printed on a serial console while shutting
> down XFree86 today:
> Sleeping on "itrmh" with the following non-sleepable locks held:
> exclusive sleep mutex drm device r = 0 (0x6505f464) locked @
> dev/drm/drm_irq.h:192
> Stack backtrace:
> backtrace(607dd224,b00c894c,1,6599e6e0,65945d20) at 0x60564407
> witness_warn(5,64faf380,60735d8f,60732f57,15a) at 0x605893f3
> msleep(65777b40,64faf380,a0,60732f57,0) at 0x6056b98a
> ithread_remove_handler(65777b40,b00c89bc,606e4ad1,65777b40,b00c89e4) at
> 0x6054d695
> I had DRM_DEBUG turned on and a console actively logging at the time, so I
> was able to produce a full trace with the DRM_DEBUG messages before and
> after. I have attached the file to this email.
> My kernel is fairly stock, with amr, nge, smp and DRM_DEBUG enabled. I can
> make my config file available as well as the full hardware specifications
> for the machine that this was found on. Google turned up something similar
> from last December, involving the same line of code, but it was a LOR.
> That report can be found here:
> Any ideas?
> Andy
> > Andre Guibert de Bruet | Enterprise Software Consultant >
> > Silicon Landmark, LLC. |    >

Can you please file a PR with this and send me the number so I can assign it 
to the DRM guy.

John Baldwin <jhb at>  <><
"Power Users Use the Power to Serve"  =

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