| Summary: | [ILK/SNB/IVB/HSW Regression]igt gem_userptr_blits/create-destroy-sync causes system hang | ||||||
|---|---|---|---|---|---|---|---|
| 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: | critical | ||||||
| Priority: | high | CC: | intel-gfx-bugs, jinxianx.guo | ||||
| Version: | XOrg git | ||||||
| Hardware: | All | ||||||
| OS: | Linux (All) | ||||||
| Whiteboard: | |||||||
| i915 platform: | i915 features: | ||||||
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bug 81832 is about "long time to execute", In fact, system hang on some platforms, report this bug to track system hang. The fix is in drm-intel-fixes-next queued for the next stable release. I think keep it open untill fixed on -fixes branch. It also impacts Sandybridge. Fixed. Closing old verified+fixed. |
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Created attachment 107640 [details] dmesg ==System Environment== -------------------------- Regression: Yes. Good commit on -next-queued: 6e47e3f097cc6c4cb470a805a3fa07a8e8376dab bad commit: a128efeaa64609a9672b51bb37bb703e1b0f0128 ==kernel== -------------------------- drm-intel-nightly/ea4bec8e96ea8b33b49a7892c1c7f20041a56da6 ==Bug detailed description== It causes system hang on ILK with -fixes and -queued kernel, works well on -nightly kernel. output: IGT-Version: 1.8-gc7551bf (i686) (Linux: 3.17.0_drm-intel-fixes_bfe01a_20141009+ i686) Aperture size is 2048 MiB Total RAM is 1945 MiB Testing unsynchronized mappings... Testing synchronized mappings... Call trace: [ 168.711399] Call Trace: [ 168.715426] [<f8573d3d>] ? __i915_mm_struct_free__worker+0x1a/0x3b [i915] [ 168.719533] [<c103fbdd>] ? process_one_work+0x163/0x2ab [ 168.723661] [<c103007b>] ? copy_process.part.39+0x80b/0x12ec [ 168.727814] [<c103ff53>] ? worker_thread+0x211/0x2f4 [ 168.731984] [<c103fd42>] ? process_scheduled_works+0x1d/0x1d [ 168.736166] [<c1042b1b>] ? kthread+0xa1/0xa6 [ 168.740340] [<c16fa5e1>] ? ret_from_kernel_thread+0x21/0x30 [ 168.744516] [<c1042a7a>] ? kthread_freezable_should_stop+0x3b/0x3b [ 168.748720] Code: 5f 8b 1b 85 db 75 e4 8b 14 24 83 c4 08 b8 20 98 f9 c2 5b 5e 5f 5d e9 df 6c f8 ff 57 56 89 c6 53 8b 42 28 89 d3 85 c0 7f 02 0f 0b <83> 7e 04 00 74 58 b8 20 98 f9 c2 e8 98 6c f8 ff 89 c7 8b 46 08 [ 168.758209] EIP: [<c10de514>] mmu_notifier_unregister+0x10/0x97 SS:ESP 0068:c0077f18 [ 168.762785] CR2: 000000000000000c [ 168.767349] ---[ end trace 6620fa4b34e3f6ac ]--- [ 168.772001] BUG: unable to handle kernel paging request at ffffffec ==Reproduce steps== ---------------------------- 1. ./gem_userptr_blits --run-subtest create-destroy-sync