Ubuntu
xserver-xorg-video-i810 package

Error in I830WaitLpRing()

Bug #30179 reported by Angelo Lisco
10
Affects Status Importance Assigned to Milestone
xserver-xorg-video-i810 (Ubuntu)
Confirmed
High
Unassigned
Ubuntu ubuntu-6.06

Bug Description

OS: Linux (k)ubuntu Dapper
kernel: 2.6.15-14-686
pc: IBM Thinkpad X40
svga: Intel Corporation 82852/855GM Integrated Graphics Device
driver: i810
options: xv and dri enabled

When i watch a video with Xine after a suspend to RAM, X crashes and respawn
itself forever and ever.
I was able to grab some info about the crash via ssh:

Error in I830WaitLpRing(), now is 501961392, start is 501959391
pgetbl_ctl: 0x1fee0001 pgetbl_err: 0x0
ipeir: 0 iphdr: 1810000
LP ring tail: 50 head: 0 len: 1f001 start 0
eir: 0 esr: 0 emr: ffff
instdone: ffc0 instpm: 0
memmode: 108 instps: 0
hwstam: ffff ier: 2 imr: 9 iir: 2a0
space: 130984 wanted 131064
(II) I810(0): [drm] removed 1 reserved context for kernel
(II) I810(0): [drm] unmapping 8192 bytes of SAREA 0xe02b3000 at 0xb792e000

Fatal server error:
lockup

Revision history for this message
Angelo Lisco (angystardust-gmail) wrote :

As suggested by Alan Hourihane, i'm now trying his experimantal driver downloaded from http://www.fairlite.demon.co.uk/intel.html.

Revision history for this message
Baishampayan Ghose (b.ghose) wrote :

I can confirm this bug. This is a genuine issue in dapper.
Even in my case this happened after I did a suspend to RAM.
The suspend to RAM worked fine and woke up nicely too, but X started locking up after I restarted.
My error log is also identical --
Error in I830WaitLpRing(), now is -46365282, start is -46367283
pgetbl_ctl: 0x2ffe0001 pgetbl_err: 0x0
ipeir: 0 iphdr: 2000001
LP ring tail: 50 head: 0 len: 1f001 start 0
eir: 0 esr: 0 emr: ffff
instdone: efc1 instpm: 12
memmode: 108 instps: 42
hwstam: ffff ier: 2 imr: 9 iir: a0
space: 130984 wanted 131064
(II) I810(0): [drm] removed 1 reserved context for kernel
(II) I810(0): [drm] unmapping 8192 bytes of SAREA 0xefcab000 at 0xb7b17000

Fatal server error:
lockup

Revision history for this message
Baishampayan Ghose (b.ghose) wrote :

I am confirming this bug and escalating it's severity and priority.

Changed in xserver-xorg-driver-i810:
status: Unconfirmed → Confirmed
Revision history for this message
Paul Sladen (sladen) wrote :

This is already maked as a dup of #28326, please could you add comments there.

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