Bug 99926

Summary:

[BXT] gem_shrink family subtests are failing

Product:

DRI

Reporter:

Jairo Miramontes <jairo.daniel.miramontes.caton>

Component:

DRM/Intel

Assignee:

Intel GFX Bugs mailing list <intel-gfx-bugs>

Status:

CLOSED DUPLICATE

QA Contact:

Intel GFX Bugs mailing list <intel-gfx-bugs>

Severity:

major

Priority:

medium

CC:

intel-gfx-bugs

Version:

DRI git

Hardware:

x86-64 (AMD64)

OS:

All

Whiteboard:

i915 platform:

BXT

i915 features:

GEM/Other

Attachments:

Description	Flags
dmesg log with drm.debug=0xe	none

Description Jairo Miramontes 2017-02-23 17:06:53 UTC

Created attachment 129878 [details]
dmesg log with drm.debug=0xe

The following tests are failing on BXT, attached dmesg log for two tests, all failures have similar output and dmesg, apparently running out of memory.

igt@gem_shrink@execbuf1-oom
igt@gem_shrink@execbufn
igt@gem_shrink@execbufn-userptr
igt@gem_shrink@get-pages-userptr
igt@gem_shrink@mmap-cpu-oom
igt@gem_shrink@mmap-gtt-oom
igt@gem_shrink@pread
igt@gem_shrink@pwrite-userptr


Steps to reproduce
=========================================
1. Download and Install IGT suite.
2. go to intel-gpu-tools/tests/ folder
3. execute test ./gem_shrink --run-subtest execbuf1-oom
4. execute test ./gem_shrink --run-subtest execbufn
5. execute test ./gem_shrink --run-subtest execbufn-userptr
6. execute test ./gem_shrink --run-subtest get-pages-userptr
7. execute test ./gem_shrink --run-subtest mmap-cpu-oom
8. execute test ./gem_shrink --run-subtest mmap-gtt-oom
9. execute test ./gem_shrink --run-subtest pread
10. execute test ./gem_shrink --run-subtest pwrite-userptr

Expected output
=========================================
Tests should be marked as pass


Actual output
==========================================

Tests are marked as fail  showing the following debug info ( more in dmesg)

[  995.656651] [ pid ]   uid  tgid total_vm      rss nr_ptes nr_pmds swapents oom_score_adj name
[  995.656732] [ 1891]     0  1891     9922       84      23       3        0          1000 gem_shrink
[  995.656734] [ 1949]     0  1949  1844931        0      22       3        0          1000 gem_shrink
[  995.656736] [ 1950]     0  1950  1844931        0      22       3        0          1000 gem_shrink
[  995.656738] [ 1951]     0  1951  1844931        0      22       3        0          1000 gem_shrink
[  995.656740] [ 1952]     0  1952  1844931        0      22       3        0          1000 gem_shrink
[  995.656742] [ 1953]     0  1953  1844931        0      22       3        0          1000 gem_shrink
[  995.656744] [ 1954]     0  1954  1844931       84      22       3        0          1000 gem_shrink
[  995.656748] Out of memory: Kill process 1891 (gem_shrink) score 999 or sacrifice child
[  995.656761] Killed process 1954 (gem_shrink) total-vm:7379724kB, anon-rss:336kB, file-rss:0kB, shmem-rss:0kB
[  995.663642] oom_reaper: reaped process 1954 (gem_shrink), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB
[  995.736290] NetworkManager invoked oom-killer: gfp_mask=0x14200ca(GFP_HIGHUSER_MOVABLE), nodemask=0, order=0, oom_score_adj=0
[  995.736292] NetworkManager cpuset=/ mems_allowed=0
[  995.736298] CPU: 1 PID: 756 Comm: NetworkManager Not tainted 4.10.0-drm-tip-qa-ww8-commit-0a03ea9+ #1


========== Kernel Information============

commit 0a03ea9496b49746b4964d05cc1f483385d1df8a
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date:   Mon Feb 20 17:20:19 2017 +0000

    drm-tip: 2017y-02m-20d-17h-19m-56s UTC integration manifest

Kernel version : 4.10.0-0a03ea9
Architecture : source amd64 all

========== Software Information ==========

Component         : drm
	tag       : libdrm-2.4.75-7-gf6499b1
	commit    : f6499b1 

Component         : cairo
	tag       : 1.15.4-6-g5854dd9
	commit    : 5854dd9 

Component         : intel-gpu-tools
	tag       : intel-gpu-tools-1.17-245-g2210c5b
	commit    : 2210c5b 

=========================================

Ubuntu 16.10 yakkety

Comment 1 Chris Wilson 2017-02-23 20:45:28 UTC

The tests are designed to fail, -oom definitely, the others as a deficiency of the kernel. The purpose is to ensure we don't crash under extreme mempressure.

The new page allocation stalls are expected - since that is exactly the stress we are putting the system under.

*** This bug has been marked as a duplicate of bug 95424 ***

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