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Date:      Mon, 25 Aug 2008 10:25:45 -0400
From:      Robert Noland <rnoland@FreeBSD.org>
To:        jimmiejaz@gmail.com
Cc:        freebsd-x11 <freebsd-x11@freebsd.org>
Subject:   Re: [CFT] drm updates
Message-ID:  <1219674352.53929.2.camel@squirrel.corp.cox.com>
In-Reply-To: <48B1A590.2040701@gmail.com>
References:  <48B1A590.2040701@gmail.com>

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On Sun, 2008-08-24 at 14:16 -0400, Jimmie James wrote:
> Is this the type of lockup you're seeing?
>=20
>=20
> 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
>=20
>=20
>=20
> (WW) intel(0): PRB0_CTL (0x0001f001) indicates ring buffer enabled
> (WW) intel(0): PRB0_HEAD (0x13e1ad64) and PRB0_TAIL (0x0001afa8)=20
> indicate ring buffer not flushed
> (WW) intel(0): Existing errors found in hardware state.

Possibly, I haven't gotten this output though.  Can you describe how you
reached this state?

robert.

>=20
> vgapci0@pci0:0:2:0:     class=3D0x030000 card=3D0x25821043 chip=3D0x25828=
086=20
> rev=3D0x04 hdr=3D0x00
>      vendor     =3D 'Intel Corporation'
>      device     =3D '82915G/GV/GL, 82910GL Integrated Graphics Device'
>      class      =3D display
>      subclass   =3D VGA
> vgapci1@pci0:0:2:1:     class=3D0x038000 card=3D0x25821043 chip=3D0x27828=
086=20
> rev=3D0x04 hdr=3D0x00
>      vendor     =3D 'Intel Corporation'
>      device     =3D '82915G Graphics device: 82915G/GV/910GL Express=20
> Chipset Family'
>      class      =3D display
>=20
> >On Sun, 2008-08-24 at 12:29 +0200, Paul B. Mahol wrote:
> > On 8/24/08, Robert Noland <rnoland@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=3D
> 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 coll=
ec=3D
> t
> > > suggests that this may be due to mesa trashing the hardware.  I've sp=
en=3D
> t
> > > a couple of days trying to figure out exactly what could be wrong.  T=
hi=3D
> s
> > > morning I rebuilt my kernel with a stock drm from src and I got exact=
ly
> > > 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=3D
> 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 por=
ts
> > > soon also.  It, along with a recent xf86-video-* are needed to enable
> > > the new vblank behavior, which will disable vblank interrupts if ther=
e
> > > are no active consumers.
> > >
> > > robert.
> > >
> >=3D20
> > 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 d=
id=3D
>   not
> > started it, system will panic anyway after some time. I did not yet tes=
te=3D
> d
> > vty switching,....
>=20

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