[Bug 98101] New: [BYT] [IGT] gem_tiled_blits interruptible & normal subtests [Regression]

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=98101

            Bug ID: 98101
           Summary: [BYT] [IGT] gem_tiled_blits interruptible & normal
                    subtests [Regression]
           Product: DRI
           Version: XOrg git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: luis.botello.ortega at intel.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org
     i915 platform: BYT
     i915 features: display/Other

Created attachment 127039
  --> https://bugs.freedesktop.org/attachment.cgi?id=127039&action=edit
dmesg

Description:
====================================================
gem_tiled_blits interruptible & normal subtests causes a Failed assertion:
(drm_intel_gem_bo_context_exec(batch->bo, ctx, used, ring)) == 0

Hardware information
============================================
Platform                        : BYT-M (Toshiba)
Motherboard model               : Satellite C55t-A
Motherboard type                : Portable PC Notebook
Motherboard manufacturer        : TOSHIBA
CPU family                      : Atom
CPU information                 : Intel(R) Celeron(R) CPU  N2820  @ 2.13GHz
GPU Card                        : Intel Corporation Atom Processor
Z36xxx/Z37xxx Series Graphics & Display (rev 0c) (prog-if 00 [VGA controller])

Software Config
==================================================
Kernel           : drm-intel-nightly WW40
        version  : 4.8.0-rc8 

commit aab15c274da587bcab19376d2caa9d6626440335
Author: Jani Nikula <jani.nikula at intel.com>
Date:   Mon Sep 26 15:11:53 2016 +0300

    drm-intel-nightly: 2016y-09m-26d-12h-11m-33s UTC integration manifest


Kernel version : 4.8.0-rc8-aab15c2
Architecture : source amd64 all 

Component         : drm
        tag       : libdrm-2.4.70-16-g207efb1
        commit    : 207efb16ea9465c4a38840efab1bbe65e6cf5c3d 

Component         : cairo
        tag       : 1.15.2
        commit    : db8a7f1697c49ae4942d2aa49eed52dd73dd9c7a 

Component         : intel-gpu-tools
        tag       : intel-gpu-tools-1.16-41-g1a76d88
        commit    : 1a76d88905995d123ad252087228f6d310c51bdd 

Steps to reproduce:
===================================================
#./gem_tiled_blits --run-subtest interruptible

IGT output:
==================================================
IGT-Version: 1.16-g1a76d88 (x86_64) (Linux:
4.8.0-rc8-drm-intel-nightly-ww41-commit-71d1265+ x86_64)
(gem_tiled_blits:1069) drmtest-DEBUG: Test requirement passed: !(fd<0)
(gem_tiled_blits:1069) igt-core-DEBUG: Starting subtest: interruptible
(gem_tiled_blits:1069) intel-os-DEBUG: Checking 3,073 surfaces of size
1,048,576 bytes (total 3,223,851,008) against RAM
(gem_tiled_blits:1069) intel-os-DEBUG: Test requirement passed:
__intel_check_memory(count, size, mode, &required, &total)
(gem_tiled_blits:1069) igt-core-DEBUG: Test requirement passed:
!igt_run_in_simulation()
(gem_tiled_blits:1069) DEBUG: Using 3073 1MiB buffers
Verifying initialisation...
Cyclic blits, forward...
(gem_tiled_blits:1069) intel-batchbuffer-CRITICAL: Test assertion failure
function intel_batchbuffer_flush_on_ring, file intel_batchbuffer.c:184:
(gem_tiled_blits:1069) intel-batchbuffer-CRITICAL: Failed assertion:
(drm_intel_gem_bo_context_exec(batch->bo, ctx, used, ring)) == 0
(gem_tiled_blits:1069) intel-batchbuffer-CRITICAL: Last errno: 28, No space
left on device
Stack trace:
  #0 [__igt_fail_assert+0x101]
  #1 [intel_batchbuffer_flush_on_ring+0xc7]
  #2 [intel_blt_copy+0x508]
  #3 [intel_copy_bo+0x44]
  #4 [run_test+0x1f7]
  #5 [main+0x1e3]
  #6 [__libc_start_main+0xf0]
  #7 [_start+0x29]
  #8 [<unknown>+0x29]
Subtest interruptible failed.
**** DEBUG ****
(gem_tiled_blits:1069) intel-os-DEBUG: Checking 3,073 surfaces of size
1,048,576 bytes (total 3,223,851,008) against RAM
(gem_tiled_blits:1069) intel-os-DEBUG: Test requirement passed:
__intel_check_memory(count, size, mode, &required, &total)
(gem_tiled_blits:1069) igt-core-DEBUG: Test requirement passed:
!igt_run_in_simulation()
(gem_tiled_blits:1069) DEBUG: Using 3073 1MiB buffers
(gem_tiled_blits:1069) INFO: Verifying initialisation...
(gem_tiled_blits:1069) INFO: Cyclic blits, forward...
(gem_tiled_blits:1069) intel-batchbuffer-CRITICAL: Test assertion failure
function intel_batchbuffer_flush_on_ring, file intel_batchbuffer.c:184:
(gem_tiled_blits:1069) intel-batchbuffer-CRITICAL: Failed assertion:
(drm_intel_gem_bo_context_exec(batch->bo, ctx, used, ring)) == 0
(gem_tiled_blits:1069) intel-batchbuffer-CRITICAL: Last errno: 28, No space
left on device
****  END  ****
Subtest interruptible: FAIL (9.216s)
(gem_tiled_blits:1069) igt-core-DEBUG: Exiting with status code 99

Attachments
====================================================
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