Created attachment 113177 [details] dmesg ==System Environment== -------------------------- Regression: yes, caused by ppgtt no-working platforms: BSW ==kernel== -------------------------- drm-intel-nightly/9583cb470cd82997b5f23d4acab852563f5c0047 commit 9583cb470cd82997b5f23d4acab852563f5c0047 Author: Daniel Vetter <daniel.vetter@ffwll.ch> Date: Wed Feb 4 15:22:12 2015 +0100 drm-intel-nightly: 2015y-02m-04d-14h-21m-52s UTC integration manifest ==Bug detailed description== ----------------------------- It causes system hang, ctrl+c, it also doesn't exit. i915.enable_ppgtt=0, it works well. IGT-Version: 1.9-g87edb51 (x86_64) (Linux: 3.19.0-rc7_drm-intel-nightly_9583cb_20150205+ x86_64) ^C^C^C^C^C^C^C^C dmesg: [ 34.751917] [drm:i915_hangcheck_elapsed [i915]] *ERROR* Hangcheck timer elapsed... render ring idle [ 62.753026] [drm] stuck on render ring [ 62.753038] ------------[ cut here ]------------ [ 62.753090] WARNING: CPU: 1 PID: 1021 at drivers/gpu/drm/i915/i915_irq.c:2612 i915_handle_error+0x58/0x5bd [i915]() [ 62.753095] WARN_ON(mutex_is_locked(&dev_priv->dev->struct_mutex)) [ 62.753098] Modules linked in: ipv6 bnep bluetooth rfkill dm_mod snd_hda_codec_hdmi iTCO_wdt iTCO_vendor_support snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep i2c_i801 snd_pcm lpc_ich mfd_core snd_timer snd soundcore battery ac acpi_cpufreq i915 button video drm_kms_helper drm cfbfillrect cfbimgblt cfbcopyarea [ 62.753166] CPU: 1 PID: 1021 Comm: kworker/u8:3 Tainted: G W 3.19.0-rc7_drm-intel-nightly_9583cb_20150205+ #78 [ 62.753205] Workqueue: i915-hangcheck i915_hangcheck_elapsed [i915] [ 62.753210] 0000000000000000 0000000000000009 ffffffff8179a69b ffff88007b9efcc8 [ 62.753217] ffffffff8103bdec 0000000000000246 ffffffffa00b6edb 0000000000000006 [ 62.753223] ffff88017a42bb40 ffff880175418ad0 ffff8801759e7000 ffff8801755dac00 [ 62.753231] Call Trace: [ 62.753246] [<ffffffff8179a69b>] ? dump_stack+0x40/0x50 [ 62.753260] [<ffffffff8103bdec>] ? warn_slowpath_common+0x98/0xb0 [ 62.753294] [<ffffffffa00b6edb>] ? i915_handle_error+0x58/0x5bd [i915] [ 62.753301] [<ffffffff8103be9c>] ? warn_slowpath_fmt+0x45/0x4a [ 62.753335] [<ffffffffa00b6edb>] ? i915_handle_error+0x58/0x5bd [i915] [ 62.753343] [<ffffffff81797406>] ? printk+0x48/0x4d [ 62.753378] [<ffffffffa00b77b7>] ? i915_hangcheck_elapsed+0x339/0x3d5 [i915] [ 62.753389] [<ffffffff8104d128>] ? process_one_work+0x1ad/0x31a [ 62.753397] [<ffffffff8104d4ef>] ? worker_thread+0x235/0x330 [ 62.753404] [<ffffffff8104d2ba>] ? process_scheduled_works+0x25/0x25 [ 62.753411] [<ffffffff81050dee>] ? kthread+0xc5/0xcd [ 62.753418] [<ffffffff81050d29>] ? kthread_freezable_should_stop+0x40/0x40 [ 62.753425] [<ffffffff8179ffec>] ? ret_from_fork+0x7c/0xb0 [ 62.753431] [<ffffffff81050d29>] ? kthread_freezable_should_stop+0x40/0x40 [ 62.753437] ---[ end trace 05682ea912c21a80 ]--- ==Reproduce steps== ---------------------------- 1. ./gem_ring_sync_loop
Probably dupe of bug 88652.
(In reply to Jani Nikula from comment #1) > Probably dupe of bug 88652. Yes. I tested on commit 21076372afe711072b9a447f22a098691dd0b2cb, it doesn't exit testing and GPU hang, but not system hang, so report bug 89060 to track the gpu hang. Bisect shows: 6d3d8274bc45de4babb62d64562d92af984dd238 is the first bad commit. commit 6d3d8274bc45de4babb62d64562d92af984dd238 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 27 09:50:53 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 Signed-off-by: Nick Hoath <nicholas.hoath@intel.com> Reviewed-by: Thomas Daniel <thomas.daniel@intel.com> [danvet: Reformat comment with strange linebreaks.] Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> *** This bug has been marked as a duplicate of bug 88652 ***
Verified.Fixed.
Closing old verified.
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