| Summary: | [BSW]igt/drv_missed_irq_hang sporadically causes *ERROR* pipe B underrun | ||||||
|---|---|---|---|---|---|---|---|
| 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: | christophe.prigent, intel-gfx-bugs | ||||
| Version: | unspecified | ||||||
| Hardware: | All | ||||||
| OS: | Linux (All) | ||||||
| Whiteboard: | |||||||
| i915 platform: | BSW/CHT | i915 features: | display/Other | ||||
| Attachments: |
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drv_hangman also sporadically causes this error. @test: Intel_gpu_tools/igt_drv_hangman_error-state-capture-blt returncode: 0 info: @@@Returncode: 0 test case start at: Sun Jan 18 07:40:10 2015 test case end at: Sun Jan 18 07:40:39 2015 Errors: Dmesg: <3>[ 89.783289] [drm:valleyview_pipestat_irq_handler [i915]] *ERROR* CPU pipe B FIFO underrun <6>[ 91.783839] [drm] stuck on blitter ring <6>[ 91.815444] [drm] GPU HANG: ecode 8:2:0xfffffffe, in drv_hangman [5231], reason: Ring hung, action: reset <6>[ 91.815458] [drm] GPU hangs can indicate a bug anywhere in the entire gfx stack, including userspace. <6>[ 91.815462] [drm] Please file a _new_ bug report on bugs.freedesktop.org against DRI -> DRM/Intel <6>[ 91.815464] [drm] drm/i915 developers can then reassign to the right component if it's not a kernel issue. <6>[ 91.815467] [drm] The gpu crash dump is required to analyze gpu hangs, so please always attach it. <6>[ 91.815470] [drm] GPU crash dump saved to /sys/class/drm/card0/error <6>[ 91.817453] [drm] Simulated gpu hang, resetting stop_rings <5>[ 91.817457] drm/i915: Resetting chip after gpu hang Chris or Mika, is this normal for hangman? Apart from the hang, potentially related to bug 85908. (In reply to Jani Nikula from comment #3) > Apart from the hang, potentially related to bug 85908. Presumed fixed upstream, closing. Please reopen if the problem persists with latest kernels. |
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Created attachment 109327 [details] dmesg ==System Environment== -------------------------- Regression: not sure, fail rate:1/10 Non-working platforms: BSW ==kernel== -------------------------- drm-intel-nightly/9a7620f405895714b4e0dc3181a8328b4406287e ==Bug detailed description== It sporadically causes "<3>[ 673.232605] [drm:intel_set_cpu_fifo_underrun_reporting [i915]] *ERROR* pipe B underrun" on BSW with -nightly kernel. fail rate: 1/10. output: Interrupts masked Interrupts unmasked Cleared missed interrupts ==Reproduce steps== ---------------------------- 1. ./drv_missed_irq_hang