4.9 stability update

[Marian Hettwer]

Hi Peter,
> 
> I can switch from X to a vty without panicing the machine now, but
> sometimes (particularly if Mozilla is running) switching to a text vty
> will kill XF86;
> 
>   Error in I830WaitLpRing(), now is 119653913, start is 119651912
>   pgetbl_ctl: 0x3ff60001 pgetbl_err: 0x19
>   ipeir: 0 iphdr: 0
>   LP ring tail: 12560 head: 0 len: 0 start 0
>   eir: 0 esr: 10 emr: ffff
>   instdone: ffc0 instpm: 0
>   memmode: 108 instps: 0
>   hwstam: ffff ier: 0 imr: ffff iir: 0
>   space: 55960 wanted 131064
>  
>   Fatal server error:
>   lockup
> 
> 
>   xdm error (pid 193): Server for display :0 terminated unexpectedly: 1
> 
> but this appears to be i830 specific.
> 
it is probably i830 specific. I have the same Problem with 4.8-release 
and XFree86 4.3.0 running on an Acer Travelmate 220
Except that my whole Laptop is freezed, instead of giving a good error. 
And it don't happens regularly ...

just my 0,02 EUR

- Marian