Created attachment 95636 [details] dmesg system Environment: -------------------------- Platform: Pineview/Ironlake Kernel: drm-intel-nightly/0cfec5c5de398d725b866528df93e3d198ce385f Bug detailed description: ----------------------------- run ./drv_hangman, warning and call trace report in dmesg. It happens on Pineview/Ironlake with -queued kernel and -nightly kernel. The latest known good commit: 5b2ff3a84a979e42eaf860b4fa25e5b320f38585 The latest known bad commit: 8b6124a633d8095b0c8364f585edff9c59568a96 output: checking /sys/kernel/debug/dri/0/i915_error_state rings stopped gpu hang correctly detected checking /sys/class/drm/card0/error rings stopped gpu hang correctly detected [ 56.698710] [drm:i915_gem_open], [ 60.797612] [drm] stuck on render ring [ 60.797709] [drm] GPU crash dump saved to /sys/class/drm/card0/error [ 60.797751] [drm] GPU hangs can indicate a bug anywhere in the entire gfx stack, including userspace. [ 60.797794] [drm] Please file a _new_ bug report on bugs.freedesktop.org against DRI -> DRM/Intel [ 60.797833] [drm] drm/i915 developers can then reassign to the right component if it's not a kernel issue. [ 60.797875] [drm] The gpu crash dump is required to analyze gpu hangs, so please always attach it. [ 60.800748] [drm:i915_error_work_func], resetting chip [ 60.800813] ------------[ cut here ]------------ [ 60.800866] WARNING: CPU: 3 PID: 3238 at drivers/gpu/drm/i915/i915_gem.c:2342 i915_gem_reset+0xb4/0x31d [i915]() [ 60.800914] Modules linked in: dm_mod iTCO_wdt iTCO_vendor_support snd_hda_codec_hdmi snd_hda_codec_realtek pcspkr serio_raw firewire_ohci i2c_i801 lpc_ich firewire_core mfd_core crc_itu_t snd_hda_intel r8169 snd_hda_codec snd_hwdep snd_pcm snd_page_alloc snd_timer snd soundcore floppy acpi_cpufreq i915 video button drm_kms_helper drm [ 60.801158] CPU: 3 PID: 3238 Comm: kworker/3:2 Not tainted 3.13.0_drm-intel-next-queued_8b6124_20140131+ #3249 [ 60.801212] Hardware name: Gigabyte Technology Co., Ltd. H55M-UD2H/H55M-UD2H, BIOS F4 12/02/2009 [ 60.801269] Workqueue: events i915_error_work_func [i915] [ 60.801298] 0000000000000000 0000000000000009 ffffffff8171193b 0000000000000000 [ 60.801345] ffffffff810331ce 0000000000000009 ffffffffa00711be 0000000000000206 [ 60.801401] ffff880002cf9738 ffff880002e21720 0000000000000000 ffff8800d36da800 [ 60.801459] Call Trace: [ 60.801481] [<ffffffff8171193b>] ? dump_stack+0x41/0x51 [ 60.801513] [<ffffffff810331ce>] ? warn_slowpath_common+0x73/0x8b [ 60.801550] [<ffffffffa00711be>] ? i915_gem_reset+0xb4/0x31d [i915] [ 60.801591] [<ffffffffa00711be>] ? i915_gem_reset+0xb4/0x31d [i915] [ 60.801628] [<ffffffff812cdcfa>] ? kobject_uevent_env+0x3e5/0x427 [ 60.801667] [<ffffffffa005ea96>] ? i915_reset+0x35/0x123 [i915] [ 60.801711] [<ffffffffa006432a>] ? i915_error_work_func+0xc3/0x11a [i915] [ 60.801752] [<ffffffff8104487b>] ? process_one_work+0x1bc/0x2ed [ 60.801784] [<ffffffff810427f8>] ? pwq_activate_delayed_work+0x1e/0x28 [ 60.801814] [<ffffffff81044de9>] ? worker_thread+0x1c7/0x2bc [ 60.801841] [<ffffffff81044c22>] ? rescuer_thread+0x251/0x251 [ 60.801869] [<ffffffff81049882>] ? kthread+0xc5/0xcd [ 60.801894] [<ffffffff810497bd>] ? kthread_freezable_should_stop+0x40/0x40 [ 60.801927] [<ffffffff8171be7c>] ? ret_from_fork+0x7c/0xb0 [ 60.801955] [<ffffffff810497bd>] ? kthread_freezable_should_stop+0x40/0x40 [ 60.801986] ---[ end trace 3840533e2d6e6062 ]--- [ 60.802049] [drm] Simulated gpu hang, resetting stop_rings Reproduce steps: ---------------------------- 1. ./drv_hangman
Created attachment 95669 [details] [review] drm/i915: Switch to fake context on older gens
Does the attached patch help?
(In reply to comment #1) > Created attachment 95669 [details] [review] [review] > drm/i915: Switch to fake context on older gens Fixed by this patch.
Created attachment 95691 [details] dmesg(patch)
(In reply to comment #1) > Created attachment 95669 [details] [review] [review] > drm/i915: Switch to fake context on older gens Mika, have you posted this on intel-gfx?
Patch posted.
Fixed by commit a95f6a007042e76627d9722cb1a81f97c718f74b Author: Mika Kuoppala <mika.kuoppala@linux.intel.com> Date: Fri Mar 14 16:22:10 2014 +0200
Verified.Fixed.
Closing old verified+fixed.
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