Slawa Olhovchenkov wrote on 08/30/2015 20:50:
On Sun, Aug 30, 2015 at 04:06:04PM +0300, Slawa Olhovchenkov wrote:
On Sat, Aug 29, 2015 at 11:15:53PM +0300, Ruslan Makhmatkhanov wrote:
Hello,
I'm getting tons of this in /var/log/messages:
error: [drm:pid9:i915_gem_object_unbind] *ERROR* Attempting to unbind
pinned buffer
As far I understand [1], this case is harmless and there is no point to
print it with DRM_ERROR - DRM_DEBUG is sufficient. Can we please change
it in our tree like it done in patch attached? Thanks.
PS. In Linux 3.8 [2] this check was changed by removing the warning
altogether and just returning -EBUSY, so may be we can do just this to
reduce the diff ;).
[1] https://bugs.freedesktop.org/show_bug.cgi?id=50075
[2]
http://lxr.free-electrons.com/source/drivers/gpu/drm/i915/i915_gem.c?v=3.8
--
Regards,
Ruslan
T.O.S. Of Reality
Index: sys/dev/drm2/i915/i915_gem.c
===================================================================
--- sys/dev/drm2/i915/i915_gem.c (revision 287214)
+++ sys/dev/drm2/i915/i915_gem.c (working copy)
@@ -2528,7 +2528,7 @@
return 0;
if (obj->pin_count) {
- DRM_ERROR("Attempting to unbind pinned buffer\n");
+ DRM_DEBUG("Attempting to unbind pinned buffer\n");
return -EINVAL;
}
I think this is not root of cause, this is only cause of other error:
=== dmesg ====
info: [drm] Initialized i915 1.6.0 20080730 for drmn0 on minor 0
error: [drm:pid12:i915_hangcheck_hung] *ERROR* Hangcheck timer elapsed... GPU
hung
info: [drm] capturing error event; look for more information in sysctl
hw.dri.0.info.i915_error_state
error: [drm:pid0:i915_reset] *ERROR* Failed to reset chip.
==============
This cause:
=== Xorg.log ====
[ 51.010] (EE) intel(0): Detected a hung GPU, disabling acceleration.
[ 51.010] (EE) intel(0): When reporting this, please include
i915_error_state from debugfs and the full dmesg.
=================
and after this you see Attempting to unbind pinned buffer.
I am see this in STABLE after Aug upgrade. I am don't see this at 2014-Oct
STABLE.
For -STABLE:
r280368 -- All works OK (no error messages, video playback work)
r280369 -- All works OK (no error messages, video playback work)
r282141 -- error: [drm:pid5:i915_gem_object_unbind] *ERROR* Attempting to
unbind pinned buffer (video don't tested)
r282199 -- error: [drm:pid12:i915_hangcheck_hung] *ERROR* Hangcheck timer
elapsed... GPU hung (video don't work)
No doubt that this is not the root cause, but frankly I haven't that
"GPU hung" messages in my system. I have others like this one triggered
on shutdown:
error: [drm:pid1041:intel_lvds_enable] *ERROR* timed out waiting for
panel to power off
And this one spamming almost with the same frequency as "pinned buffer":
error: [drm:pid1016:gen6_sanitize_pm] *ERROR* Power management
discrepancy: GEN6_RP_INTERRUPT_LIMITS expected 000d0000, was 180d0000
But I had not investigated that yet and not sure they are related.
It's on r287029 head.
--
Regards,
Ruslan
T.O.S. Of Reality
_______________________________________________
freebsd-current@freebsd.org mailing list
https://lists.freebsd.org/mailman/listinfo/freebsd-current
To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"
