Bug 82831
| Summary: | gm45 render ring initialization error regression | ||
|---|---|---|---|
| Product: | Drivers | Reporter: | Riccardo Magliocchetti (riccardo.magliocchetti) |
| Component: | Video(DRI - Intel) | Assignee: | Chris Wilson (chris) |
| Status: | RESOLVED DUPLICATE | ||
| Severity: | normal | CC: | alan, intel-gfx-bugs |
| Priority: | P2 | ||
| Hardware: | x86-64 | ||
| OS: | Linux | ||
| Kernel Version: | 3.16.1 | Subsystem: | |
| Regression: | Yes | Bisected commit-id: | |
| Attachments: |
dmesg with 3.14.16
3.16.1 dmesg |
||
Created attachment 147511 [details]
3.16.1 dmesg
commit ece4a17d237a79f63fbfaf3f724a12b6d500555c Author: Jiri Kosina <jkosina@suse.cz> Date: Thu Aug 7 16:29:53 2014 +0200 drm/i915: read HEAD register back in init_ring_common() to enforce ordering is duct tape making this occur less often, and there's a bug at fdo for trying to identify the root cause: https://bugs.freedesktop.org/show_bug.cgi?id=76554 *** This bug has been marked as a duplicate of bug 82481 *** |
Created attachment 147501 [details] dmesg with 3.14.16 Since 3.16.1 am getting this in dmesg and everything gl / video related looks cpu bound. [ 16.660061] [drm:init_ring_common] *ERROR* render ring initialization failed ctl 0001f001 (valid? 1) head 000020a0 tail 00000000 start 00193000 [expected 00193000] [ 16.660075] [drm:i915_gem_init] *ERROR* Failed to initialize GPU, declaring it wedged Up to 3.14.16 it works fine but i haven't checked 3.15