| Summary: | igt/ZZ_missed_irq causes [drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed... render ring idle | ||||||||||||
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| Product: | DRI | Reporter: | lu hua <huax.lu> | ||||||||||
| Component: | DRM/Intel | Assignee: | Intel GFX Bugs mailing list <intel-gfx-bugs> | ||||||||||
| Status: | CLOSED FIXED | QA Contact: | Intel GFX Bugs mailing list <intel-gfx-bugs> | ||||||||||
| Severity: | normal | ||||||||||||
| Priority: | medium | CC: | intel-gfx-bugs | ||||||||||
| Version: | unspecified | ||||||||||||
| Hardware: | All | ||||||||||||
| OS: | Linux (All) | ||||||||||||
| Whiteboard: | |||||||||||||
| i915 platform: | i915 features: | ||||||||||||
| Attachments: |
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This is expected, this testcase exercises a special case in our hangcheck code. I guess we need to add a "simulated gpu hang" notice like for ZZ_hangman and friends ... Created attachment 87973 [details] [review] handle fake missed interrupts as a simulated hang, too With this patch we should properly mark the simulated hangs caused by ZZ_missed_irqs as such with the usual "Simulated gpu hang, resetting stop_rings" dmesg output. Please test. We don't call reset, this error is from hangcheck itself. Part of this test is that we do indeed emit an *ERROR* for a missed irq. It would be easier if we can test the test runners about expected *ERROR*. (In reply to comment #2) > Created attachment 87973 [details] [review] [review] > handle fake missed interrupts as a simulated hang, too > > With this patch we should properly mark the simulated hangs caused by > ZZ_missed_irqs as such with the usual "Simulated gpu hang, resetting > stop_rings" dmesg output. Please test. Test this patch, "Simulated gpu hang, resetting stop_rings" doesn't appear in dmesg. dmesg: [ 66.702045] [drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed... bsd ring idle [ 70.709623] [drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed... render ring idle Created attachment 88192 [details] [review] patch v2 This one here should work better at quieting the ERROR in dmesg for faked missed interrupts. Please test. (In reply to comment #5) > Created attachment 88192 [details] [review] [review] > patch v2 > > This one here should work better at quieting the ERROR in dmesg for faked > missed interrupts. Please test. Test this patch, The "ERROR" goes away. Created attachment 88209 [details]
dmesg with patch v2
commit f4adcd247766e5b914f861ed143ff328f869bf80 Author: Daniel Vetter <daniel.vetter@ffwll.ch> Date: Mon Oct 28 09:24:13 2013 +0100 drm/i915: handle faked missed interrupts as simulated hangs, too Verified.Fixed. Closing old verified. |
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Created attachment 87966 [details] dmesg System Environment: -------------------------- Platform: PNV/ILK/SNB/IVB/HSW Kernel: (drm-intel-nightly)d1b2b826f0969182f055d11c991f90fdc6a4924a Bug detailed description: --------------------------- It causes [drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed... render ring idle on PNV/ILK/SNB/IVB/HSW with -nightly and -queued kernel. -fixes kernel doesn't support interrupt masking. It's a new case. output: . Interrupts masked Interrupts unmasked Cleared missed interrupts no error state collected in debug/dri/0/i915_error_state. Reproduce steps: ---------------------------- 1. ./ZZ_missed_irq