| Summary: | [BSW ppgtt bisected]igt/gem_reset_stats causes system hang | ||||||
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| Product: | DRI | Reporter: | lu hua <huax.lu> | ||||
| Component: | DRM/Intel | Assignee: | Nick Hoath <nicholas.hoath> | ||||
| Status: | CLOSED DUPLICATE | QA Contact: | Intel GFX Bugs mailing list <intel-gfx-bugs> | ||||
| Severity: | critical | ||||||
| Priority: | highest | CC: | intel-gfx-bugs | ||||
| Version: | unspecified | ||||||
| Hardware: | All | ||||||
| OS: | Linux (All) | ||||||
| Whiteboard: | |||||||
| i915 platform: | i915 features: | ||||||
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Description
lu hua
2015-01-27 02:13:26 UTC
It also happens on BDW. some gem_reset_stats sub cases also cause system hang. run ./gem_reset_stats on BSW. IGT-Version: 1.9-gebd8b32 (x86_64) (Linux: 3.19.0-rc6_drm-intel-nightly_70438b_20150128+ x86_64) Subtest params: SUCCESS (0.008s) Subtest params-ctx-render: SUCCESS (0.020s) Subtest reset-stats-render: SUCCESS (5.807s) Subtest reset-stats-ctx-render: SUCCESS (6.006s) Run ./gem_reset_stats --run-subtest ban-bsd on BDW and BSW, it also causes system hang. Add SNB in this case. The following cases will cause the similar output in dmesg. igt/gem_reset_stats/ban-blt igt/gem_reset_stats/ban-bsd igt/gem_reset_stats/ban-ctx-render igt/gem_reset_stats/ban-render Remove SNB, it is a separate bug. remove BDW, track it in bug 88688. Add i915.enable_ppgtt=0 on drm-intel-nightly kernel(98592c_20150122) kernel, It works well. Test on the latest drm-intel-nightly(8b4216_20150203) kernel, it has a new bug. We will file a new bug to track this on the latest drm-intel-nightly kernel. (In reply to lu hua from comment #4) > Test on the latest drm-intel-nightly(8b4216_20150203) kernel, it has a new > bug. We will file a new bug to track this on the latest drm-intel-nightly > kernel. On the latest drm-intel-nightly kernel,it doesn't exit testing, reported bug 88933. Bisected shows: the first bad commit is 180253c7. It parents commit 84ebd315 is good. commit 180253c71a9d55352cbad44a02424958320cb618 84ebd31548132e1d9e9014fa08986765b5a20237 Author: Nick Hoath <nicholas.hoath@intel.com> AuthorDate: Thu Jan 15 13:10:39 2015 +0000 Commit: Daniel Vetter <daniel.vetter@ffwll.ch> CommitDate: Tue Jan 20 12:36:54 2015 +0100 drm/i915: Subsume intel_ctx_submit_request in to drm_i915_gem_request Move all remaining elements that were unique to execlists queue items in to the associated request. Issue: VIZ-4274 v2: Rebase. Fixed issue of overzealous freeing of request. v3: Removed re-addition of cleanup work queue (found by Daniel Vetter) v4: Rebase. v5: Actual removal of intel_ctx_submit_request. Update both tail and postfix pointer in __i915_add_request (found by Thomas Daniel) v6: Removed unrelated changes maybe Bug #88987 Bug 388845 Bug #89000 Bug #87729 same issue as with this bug. This issue does not exist on latest the drm-intel-fixes branch. Please retest with current drm-intel-nightly that has commit f82107950e9bda3779610e37bdfdccae6fc16f87 Author: Nick Hoath <nicholas.hoath@intel.com> Date: Thu Jan 29 16:55:07 2015 +0000 drm/i915: Fix a use-after-free in intel_execlists_retire_requests *** This bug has been marked as a duplicate of bug 88652 *** Verified.Fixed. Closing old verified. |
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