| Summary: | [BDW Regression]igt/gem_cpu_reloc stops at 1% and Call Trace in dmesg | ||||||
|---|---|---|---|---|---|---|---|
| Product: | DRI | Reporter: | Guo Jinxian <jinxianx.guo> | ||||
| Component: | DRM/Intel | Assignee: | Mika Kuoppala <mika.kuoppala> | ||||
| Status: | CLOSED FIXED | QA Contact: | Intel GFX Bugs mailing list <intel-gfx-bugs> | ||||
| Severity: | normal | ||||||
| Priority: | high | CC: | intel-gfx-bugs, yk | ||||
| Version: | unspecified | ||||||
| Hardware: | Other | ||||||
| OS: | All | ||||||
| Whiteboard: | |||||||
| i915 platform: | i915 features: | ||||||
| Attachments: |
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commit d1533379584f8edcfcabb024dffc1b334db8da0f Author: Oscar Mateo <oscar.mateo@intel.com> Date: Fri May 9 13:44:59 2014 +0100 drm/i915: Ringbuffer signal func for the second BSD ring This is missing in: commit 78325f2d270897c9ee0887125b7abb963eb8efea Author: Ben Widawsky <benjamin.widawsky@intel.com> Date: Tue Apr 29 14:52:29 2014 -0700 drm/i915: Virtualize the ringbuffer signal func Looks to me like a rebase side-effect... Signed-off-by: Oscar Mateo <oscar.mateo@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Mika is on the trail. commit 6e450ab24dc645d776e65bbb91fc5f6788087c32 Author: Mika Kuoppala <mika.kuoppala@linux.intel.com> Date: Thu May 15 20:58:07 2014 +0300 drm/i915: Bail out early on gen6_signal if no semaphores If we dont have semaphores enabled, we allocate 4 dwords for signalling. But end up emitting more regardless. Fix this by bailing out early if semaphores are not enabled. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=78274 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=78283 Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Verified [root@x-bdw opt]# ./gem_cpu_reloc IGT-Version: 1.6-gff3c122 (x86_64) (Linux: 3.15.0-rc6_drm-intel-nightly_c37f30_20140526+ x86_64) gem_cpu_reloc: 100% Test suceeded, cleanup up - this might take a while. Closing old verified. |
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Created attachment 98453 [details] dmesg *System Environment: -------------------------- Platform: BDW kernel: -nightly: 08ce6614d07dd1e426109672a5e323317c8d6ec7(fails) -queued: e5c03ca362819ba8ffbe5674340b61b9cd75de8f (fails) -fixes: 9bbfd20abe5025adbb0ac75160bd2e41158a9e83 (works) *Bug detailed description: ----------------------------- igt/gem_cpu_reloc stops at 1% and Call Trace in dmesg It's a regression bug good commit: c79057922ed6c2c6df1214e6ab4414fea1b23db2 bad commit: e5c03ca362819ba8ffbe5674340b61b9cd75de8f We will bisect it later Dmesg shows: [ 27.313507] Oops: 0002 [#1] SMP [ 27.313530] Modules linked in: dm_mod snd_hda_codec_hdmi iTCO_wdt iTCO_vendor_support ppdev pcspkr lpc_ich mfd_core snd_hda_intel snd_hda_controller i2c_i801 snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore battery parport_pc parport ac acpi_cpufreq i915 video button drm_kms_helper drm [ 27.313730] CPU: 0 PID: 4331 Comm: gem_cpu_reloc Not tainted 3.15.0-rc2_drm-intel-nightly_08ce66_20140504+ #2286 [ 27.313786] task: ffff88014483f620 ti: ffff880149ace000 task.ti: ffff880149ace000 [ 27.313826] RIP: 0010:[<ffffffff812e6723>] [<ffffffff812e6723>] iowrite32+0xe/0x28 [ 27.313872] RSP: 0018:ffff880149acfc00 EFLAGS: 00010292 [ 27.313902] RAX: 0000000011000001 RBX: ffff880145629780 RCX: 000000000001ffe0 [ 27.313940] RDX: 000000000001fff0 RSI: ffffc900110a0000 RDI: ffffc900110a0000 [ 27.313978] RBP: 0000000000000002 R08: ffff880147558578 R09: ffff880147558578 [ 27.314016] R10: 0000000000000000 R11: 0000000000000000 R12: ffff880145628000 [ 27.314054] R13: 0000000000000000 R14: 0000000000022040 R15: ffff8801492f4de0 [ 27.314093] FS: 00007fa1904238c0(0000) GS:ffff88014f400000(0000) knlGS:0000000000000000 [ 27.314136] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 27.314167] CR2: ffffc900110a0000 CR3: 000000014833f000 CR4: 00000000003407f0 [ 27.314205] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 27.314243] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 27.314281] Stack: [ 27.314294] ffffffffa008b5ea 000000000081c000 0000000000000004 ffff880145629780 [ 27.314342] ffff880145628000 ffff88000242be00 0000000000000000 ffff880145629780 [ 27.314389] ffffffffa008a9a8 ffff88000242be00 ffffffffa008d3a1 0000000000000000 [ 27.314437] Call Trace: [ 27.314467] [<ffffffffa008b5ea>] ? gen6_signal+0x7b/0x10c [i915] [ 27.314511] [<ffffffffa008a9a8>] ? gen6_add_request+0x13/0x88 [i915] [ 27.314556] [<ffffffffa008d3a1>] ? intel_ring_flush_all_caches+0x1c/0x29 [i915] [ 27.314605] [<ffffffffa007a17f>] ? __i915_add_request+0x1c4/0x1e3 [i915] [ 27.314650] [<ffffffffa0075eb1>] ? i915_gem_do_execbuffer.isra.16+0xff1/0x1142 [i915] [ 27.314694] [<ffffffff812e3c23>] ? __sg_page_iter_next+0x2b/0x58 [ 27.314736] [<ffffffffa00764d0>] ? i915_gem_execbuffer2+0x177/0x1fb [i915] [ 27.314779] [<ffffffffa0002f22>] ? drm_ioctl+0x25c/0x3ad [drm] [ 27.314819] [<ffffffffa0076359>] ? i915_gem_execbuffer+0x357/0x357 [i915] [ 27.314859] [<ffffffff81725de3>] ? __schedule+0x638/0x77e [ 27.314893] [<ffffffff810ee9b3>] ? do_vfs_ioctl+0x3ec/0x435 [ 27.314926] [<ffffffff810eea45>] ? SyS_ioctl+0x49/0x78 [ 27.314958] [<ffffffff8172d622>] ? system_call_fastpath+0x16/0x1b [ 27.314991] Code: 48 89 f7 76 05 e9 21 5c d4 ff 48 81 fe 00 00 01 00 77 09 48 c7 c6 15 9f 9b 81 eb aa c3 48 81 fe ff ff 03 00 89 f8 48 89 f7 76 03 <89> 06 c3 48 81 fe 00 00 01 00 76 05 0f b7 d6 ef c3 48 c7 c6 49 [ 27.315227] RIP [<ffffffff812e6723>] iowrite32+0xe/0x28 [ 27.315261] RSP <ffff880149acfc00> [ 27.315281] CR2: ffffc900110a0000 [ 27.315301] ---[ end trace de5b068c0f112569 ]--- Output: IGT-Version: 1.6-gc864279 (x86_64) (Linux: 3.15.0-rc2_drm-intel-nightly_08ce66_20140504+ x86_64) gem_cpu_reloc: 1% *Reproduce steps: ---------------------------- 1. ./gem_cpu_reloc