Comment 328 for bug 541511

(In reply to comment #187)
> Hi,
>
> I've backported the v9-patch to several kernel versions. You can download them
> from my homepage :
>
> http://glasen-hardt.de/?page_id=707

Hi,

Thanks but I have already set my system up with 2.6.35-rc3 + V9.
I have also updated my X server to 1.8.2.

My test senario is to run two 3d apps (glxgears & atlantis from xscreensaver) and an XV mplayer AVI loop with fvwm2 as the window manager. After about four hours my kernel has reported the flush failure that has seen by others earlier. CPU usage was low (< 10%) at all times (CPU throttled back to 600 Mhz by acpi_cpufreq) but the displays were not smooth and stalled on occassion.
Is my system showing the expected behaviour for the current state of development ?

thanks.

WARNING: at drivers/char/agp/intel-gtt.c:1007 intel_i830_chipset_flush+0x2f5/0x400()
Hardware name: 2889SG1
i8xx chipset flush failed, expected: 113920, cpu_read: 113408
Modules linked in: nfs nfsd lockd sunrpc exportfs microcode usbhid uhci_hcd pcmcia thinkpad_acpi ehci_hcd hwmon rfkill rtc_cmos led_class snd_intel8x0 8250_pnp yenta_socket floppy usbcore 8250_pci rtc_core nvram battery ac ide_cd_mod rtc_lib 8250 pcmcia_rsrc e100 snd_ac97_codec psmouse nls_base pcmcia_core cdrom ac97_bus serial_core i2c_i801 thermal rng_core snd_pcm_oss snd_pcm snd_timer snd_page_alloc snd_mixer_oss snd soundcore acpi_cpufreq processor mperf unix
Pid: 2552, comm: X Not tainted 2.6.35-rc3 #1
Call Trace:
 [<c1027748>] ? warn_slowpath_common+0x78/0xb0
 [<c119a2b5>] ? intel_i830_chipset_flush+0x2f5/0x400
 [<c119a2b5>] ? intel_i830_chipset_flush+0x2f5/0x400
 [<c1027813>] ? warn_slowpath_fmt+0x33/0x40
 [<c119a2b5>] ? intel_i830_chipset_flush+0x2f5/0x400
 [<c119502c>] ? agp_flush_chipset+0xc/0x10
 [<c11bdaac>] ? i915_gem_object_flush_cpu_write_domain+0x2c/0x40
 [<c11bfbba>] ? i915_gem_object_set_to_gtt_domain+0x3a/0x80
 [<c11d8d1f>] ? intel_overlay_do_put_image+0x7f/0x7c0
 [<c11d9c4c>] ? intel_overlay_put_image+0x58c/0x770
 [<c11cacb6>] ? intel_mark_busy+0x1d6/0x1e0
 [<c11a2c67>] ? drm_ioctl+0x157/0x330
 [<c11d96c0>] ? intel_overlay_put_image+0x0/0x770
 [<c1073288>] ? handle_mm_fault+0x208/0x7a0
 [<c109486f>] ? do_vfs_ioctl+0x8f/0x610
 [<c101deb7>] ? do_page_fault+0x197/0x3b0
 [<c11a2b10>] ? drm_ioctl+0x0/0x330
 [<c10424ca>] ? ktime_get_ts+0x10a/0x140
 [<c112b763>] ? copy_to_user+0x33/0x70
 [<c1094e2d>] ? sys_ioctl+0x3d/0x70
 [<c1002b10>] ? sysenter_do_call+0x12/0x26