| Summary: | nouveau: nv50, regression "GPU lockup - switching to software fbcon" introduced in 2.6.38-rc8 | ||
|---|---|---|---|
| Product: | xorg | Reporter: | Michał Lipski <tallica> |
| Component: | Driver/nouveau | Assignee: | Nouveau Project <nouveau> |
| Status: | RESOLVED FIXED | QA Contact: | Xorg Project Team <xorg-team> |
| Severity: | normal | ||
| Priority: | medium | CC: | doug.hunley, EoD, ghutzl, nigel |
| Version: | 7.4 (2008.09) | ||
| Hardware: | x86-64 (AMD64) | ||
| OS: | Linux (All) | ||
| Whiteboard: | |||
| i915 platform: | i915 features: | ||
| Attachments: | |||
Created attachment 44528 [details]
dmesg log, 2.6.38-rc7, no GPU lockup information
Created attachment 44529 [details]
dmesg log, 2.6.38-rc8, GPU lockup
Created attachment 44589 [details]
As suggested, dmesg log 2.6.38 with drm.debug=14 3
I can confirm a similiar bug. But my system completely locks up, that's why I can't provide you with a proper dmesg log (I could make a picture though). I also did a bisect and ended up with the same commit 73412c3854c877e5f37ad944ee8977addde4d35a. I got an AGP GeForce 7600 GT (NV40 - not NV50!). Do you require further information? Nevermind, this bug has been fixed by a18d89ca026140eb8ac4459bf70a01c571dd9a32 (2.6.39-rc2+). *** Bug 36248 has been marked as a duplicate of this bug. *** |
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Created attachment 44527 [details] dmesg log, 2.6.38 with commit 73412c3854c877e5f37ad944ee8977addde4d35a reverted There's a regression introduced in kernel >=2.6.38-rc8. It's in nouveau/master (commit 7972f91c24bb66643d76cf635faea78eb184e6b6) as well. Dmesg shows: "GPU lockup - switching to software fbcon". I've done a git bisect. The problematic commit is: 73412c3854c877e5f37ad944ee8977addde4d35a "drm/nouveau: allocate kernel's notifier object at end of block". I reverted that commit on top of the 2.6.38 to confirm the issue. Reproducible: always