[CFT] drm updates

[Jimmie James]

Is this the type of lockup you're seeing?


Error in I830WaitLpRing(), timeout for 2 seconds
pgetbl_ctl: 0x3ffc0001getbl_err: 0x0
ipeir: 0 iphdr: 7d000006
LP ring tail: 1afa0 head: 1ad64 len: 1f001 start 0
eir: 0 esr: 0 emr: ffff
instdone: fa41 instpm: 0
memmode: 108 instps: 800f00c4
hwstam: fffe ier: 2 imr: 8 iir: 80
Ring at virtual 0x2884d000 head 0x1ad64 tail 0x1afa0 count 143



(WW) intel(0): PRB0_CTL (0x0001f001) indicates ring buffer enabled
(WW) intel(0): PRB0_HEAD (0x13e1ad64) and PRB0_TAIL (0x0001afa8) 
indicate ring buffer not flushed
(WW) intel(0): Existing errors found in hardware state.


vgapci0 at pci0:0:2:0:     class=0x030000 card=0x25821043 chip=0x25828086 
rev=0x04 hdr=0x00
     vendor     = 'Intel Corporation'
     device     = '82915G/GV/GL, 82910GL Integrated Graphics Device'
     class      = display
     subclass   = VGA
vgapci1 at pci0:0:2:1:     class=0x038000 card=0x25821043 chip=0x27828086 
rev=0x04 hdr=0x00
     vendor     = 'Intel Corporation'
     device     = '82915G Graphics device: 82915G/GV/910GL Express 
Chipset Family'
     class      = display

>On Sun, 2008-08-24 at 12:29 +0200, Paul B. Mahol wrote:
> On 8/24/08, Robert Noland <rnoland at freebsd.org> wrote:
> > I've uploaded a final patch set to:
> >
> > http://people.freebsd.org/~rnoland
> >
> > I have committed this version to -CURRENT, but patches are available fo=
r
> > RELENG_7 as well.
> >
> > This version mostly just fixes a long standing memory leak.
> >
> > All of the reports for radeon have been good.  I'm still seeing a few
> > odd things with Intel though.  The most severe issue is on my 965gm.
> > After restarting X, it will hang in a way that I have never seen
> > before...  The small amount of evidence that I have been able to collec=
t
> > suggests that this may be due to mesa trashing the hardware.  I've spen=
t
> > a couple of days trying to figure out exactly what could be wrong.  Thi=
s
> > morning I rebuilt my kernel with a stock drm from src and I got exactly
> > the same hang.  Since this update does help lots of people and doesn't
> > seem to make things worse than they were to begin with, I went ahead an=
d
> > committed it.
> >
> > I was incorrect about the patch to libdrm... It isn't needed in 2.3.1
> > and it is already committed upstream.  I'll commit that update to ports
> > soon also.  It, along with a recent xf86-video-* are needed to enable
> > the new vblank behavior, which will disable vblank interrupts if there
> > are no active consumers.
> >
> > robert.
> >
>=20
> Do I need to update some ports? because with kernel from HEAD I have
> encountered problems when drm is loaded (agp + drm + i915)
> astro/stellarium caused deadlock, only mouse pointer could move, if I did=
  not
> started it, system will panic anyway after some time. I did not yet teste=
d
> vty switching,....

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