[igt-dev] [PATCH i-g-t] runner: Make sure oom-killer doesn't kill the runner

[igt-dev] [PATCH i-g-t] runner: Make sure oom-killer doesn't kill the runner

[Petri Latvala]

Tests that eat all of the RAM and then some to invoke the oom-killer
deliberately sometimes cause extra casualties. Make sure the runner
stays alive.

Signed-off-by: Petri Latvala <petri.latvala@intel.com>
---
 runner/executor.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/runner/executor.c b/runner/executor.c
index 0e91b7ab..7e5fbe8f 100644
--- a/runner/executor.c
+++ b/runner/executor.c
@@ -1221,6 +1221,22 @@ static void write_abort_file(int resdirfd,
 	}
 }
 
+static void oom_immortal(void)
+{
+	int fd;
+	const char never_kill[] = "-1000";
+
+	fd = open("/proc/self/oom_score_adj", O_WRONLY);
+	if (fd < 0) {
+		fprintf(stderr, "Warning: Cannot adjust oom score.\n");
+		return;
+	}
+	if (write(fd, never_kill, sizeof(never_kill)) != sizeof(never_kill))
+		fprintf(stderr, "Warning: Adjusting oom score failed.\n");
+
+	close(fd);
+}
+
 bool execute(struct execute_state *state,
 	     struct settings *settings,
 	     struct job_list *job_list)
@@ -1268,6 +1284,8 @@ bool execute(struct execute_state *state,
 		close(timefd);
 	}
 
+	oom_immortal();
+
 	init_watchdogs(settings);
 
 	if (!uname(&unamebuf)) {
-- 
2.19.1

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Re: [igt-dev] [PATCH i-g-t] runner: Make sure oom-killer doesn't kill the runner

[Chris Wilson]

Quoting Petri Latvala (2019-04-11 10:40:12)
> Tests that eat all of the RAM and then some to invoke the oom-killer
> deliberately sometimes cause extra casualties. Make sure the runner
> stays alive.
> 
> Signed-off-by: Petri Latvala <petri.latvala@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
-Chris
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[igt-dev] ✓ Fi.CI.BAT: success for runner: Make sure oom-killer doesn't kill the runner

[Patchwork]

== Series Details ==

Series: runner: Make sure oom-killer doesn't kill the runner
URL   : https://patchwork.freedesktop.org/series/59330/
State : success

== Summary ==

CI Bug Log - changes from CI_DRM_5909 -> IGTPW_2842
====================================================

Summary
-------

  **SUCCESS**

  No regressions found.

  External URL: https://patchwork.freedesktop.org/api/1.0/series/59330/revisions/1/mbox/

Known issues
------------

  Here are the changes found in IGTPW_2842 that come from known issues:

### IGT changes ###

#### Issues hit ####

  * igt@i915_selftest@live_contexts:
    - fi-bdw-gvtdvm:      PASS -> DMESG-FAIL [fdo#110235 ]

  * igt@i915_selftest@live_execlists:
    - fi-apl-guc:         PASS -> INCOMPLETE [fdo#103927] / [fdo#109720]

  * igt@kms_pipe_crc_basic@read-crc-pipe-c-frame-sequence:
    - fi-glk-dsi:         PASS -> FAIL [fdo#103191]

  * igt@runner@aborted:
    - fi-apl-guc:         NOTRUN -> FAIL [fdo#108622] / [fdo#109720]

  
#### Possible fixes ####

  * igt@i915_selftest@live_hangcheck:
    - fi-bxt-dsi:         INCOMPLETE [fdo#103927] -> PASS

  
  [fdo#103191]: https://bugs.freedesktop.org/show_bug.cgi?id=103191
  [fdo#103927]: https://bugs.freedesktop.org/show_bug.cgi?id=103927
  [fdo#108622]: https://bugs.freedesktop.org/show_bug.cgi?id=108622
  [fdo#109720]: https://bugs.freedesktop.org/show_bug.cgi?id=109720
  [fdo#110235 ]: https://bugs.freedesktop.org/show_bug.cgi?id=110235 


Participating hosts (49 -> 42)
------------------------------

  Missing    (7): fi-ilk-m540 fi-byt-j1900 fi-byt-squawks fi-bsw-cyan fi-gdg-551 fi-icl-y fi-bdw-samus 


Build changes
-------------

    * IGT: IGT_4943 -> IGTPW_2842

  CI_DRM_5909: af07fbb536d0728e381cc001cac5bc259c41fe02 @ git://anongit.freedesktop.org/gfx-ci/linux
  IGTPW_2842: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_2842/
  IGT_4943: 5941f371b0fe25084d4b1c49882faa8d41d44c9f @ git://anongit.freedesktop.org/xorg/app/intel-gpu-tools

== Logs ==

For more details see: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_2842/
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[igt-dev] ✓ Fi.CI.IGT: success for runner: Make sure oom-killer doesn't kill the runner

[Patchwork]

== Series Details ==

Series: runner: Make sure oom-killer doesn't kill the runner
URL   : https://patchwork.freedesktop.org/series/59330/
State : success

== Summary ==

CI Bug Log - changes from CI_DRM_5909_full -> IGTPW_2842_full
====================================================

Summary
-------

  **SUCCESS**

  No regressions found.

  External URL: https://patchwork.freedesktop.org/api/1.0/series/59330/revisions/1/mbox/

Known issues
------------

  Here are the changes found in IGTPW_2842_full that come from known issues:

### IGT changes ###

#### Issues hit ####

  * igt@gem_bad_reloc@negative-reloc-bsd2:
    - shard-iclb:         NOTRUN -> SKIP [fdo#109276] +12

  * igt@gem_exec_suspend@basic-s3:
    - shard-kbl:          PASS -> INCOMPLETE [fdo#103665]

  * igt@gem_mocs_settings@mocs-reset-dirty-render:
    - shard-iclb:         NOTRUN -> SKIP [fdo#110206]

  * igt@gem_pread@pagefault-pread:
    - shard-iclb:         NOTRUN -> SKIP [fdo#109277] +1

  * igt@gem_pwrite@huge-cpu-backwards:
    - shard-iclb:         NOTRUN -> SKIP [fdo#109290]

  * igt@gem_workarounds@suspend-resume-context:
    - shard-apl:          PASS -> DMESG-WARN [fdo#110376]

  * igt@i915_pm_lpsp@screens-disabled:
    - shard-iclb:         NOTRUN -> SKIP [fdo#109301]

  * igt@i915_pm_rc6_residency@rc6-accuracy:
    - shard-snb:          PASS -> SKIP [fdo#109271]

  * igt@i915_pm_rpm@modeset-non-lpsp:
    - shard-iclb:         NOTRUN -> SKIP [fdo#109308]

  * igt@i915_pm_rpm@modeset-pc8-residency-stress:
    - shard-apl:          NOTRUN -> SKIP [fdo#109271] +25

  * igt@i915_suspend@sysfs-reader:
    - shard-apl:          PASS -> DMESG-WARN [fdo#108566] +2

  * igt@kms_atomic_transition@1x-modeset-transitions-nonblocking-fencing:
    - shard-apl:          PASS -> FAIL [fdo#109660]
    - shard-kbl:          NOTRUN -> FAIL [fdo#109660]

  * igt@kms_atomic_transition@6x-modeset-transitions-nonblocking-fencing:
    - shard-iclb:         NOTRUN -> SKIP [fdo#109278] +3
    - shard-glk:          NOTRUN -> SKIP [fdo#109271] / [fdo#109278] +1

  * igt@kms_available_modes_crc@available_mode_test_crc:
    - shard-iclb:         NOTRUN -> FAIL [fdo#106641]

  * igt@kms_busy@basic-modeset-f:
    - shard-apl:          NOTRUN -> SKIP [fdo#109271] / [fdo#109278] +1

  * igt@kms_chamelium@dp-hpd-storm-disable:
    - shard-iclb:         NOTRUN -> SKIP [fdo#109284] +1

  * igt@kms_content_protection@legacy:
    - shard-kbl:          NOTRUN -> FAIL [fdo#110321] / [fdo#110336]

  * igt@kms_cursor_crc@cursor-128x128-suspend:
    - shard-apl:          NOTRUN -> DMESG-WARN [fdo#108566]

  * igt@kms_cursor_crc@cursor-512x170-random:
    - shard-iclb:         NOTRUN -> SKIP [fdo#109279]

  * igt@kms_cursor_legacy@2x-long-cursor-vs-flip-atomic:
    - shard-iclb:         NOTRUN -> SKIP [fdo#109274] +3

  * igt@kms_fbcon_fbt@psr:
    - shard-iclb:         NOTRUN -> FAIL [fdo#103833]

  * igt@kms_flip@absolute-wf_vblank-interruptible:
    - shard-iclb:         PASS -> INCOMPLETE [fdo#107713]

  * igt@kms_force_connector_basic@force-load-detect:
    - shard-iclb:         NOTRUN -> SKIP [fdo#109285]

  * igt@kms_frontbuffer_tracking@fbc-2p-primscrn-pri-indfb-draw-render:
    - shard-iclb:         NOTRUN -> SKIP [fdo#109280] +17

  * igt@kms_frontbuffer_tracking@fbcpsr-1p-primscrn-cur-indfb-draw-render:
    - shard-iclb:         PASS -> FAIL [fdo#103167] +4

  * igt@kms_frontbuffer_tracking@fbcpsr-1p-rte:
    - shard-iclb:         NOTRUN -> FAIL [fdo#109247] +1

  * igt@kms_frontbuffer_tracking@fbcpsr-farfromfence:
    - shard-glk:          NOTRUN -> SKIP [fdo#109271] +13

  * igt@kms_frontbuffer_tracking@psr-1p-primscrn-pri-indfb-draw-mmap-cpu:
    - shard-iclb:         PASS -> FAIL [fdo#109247] +11

  * igt@kms_invalid_dotclock:
    - shard-iclb:         NOTRUN -> SKIP [fdo#109310]

  * igt@kms_lease@setcrtc_implicit_plane:
    - shard-kbl:          NOTRUN -> FAIL [fdo#110281]

  * igt@kms_pipe_crc_basic@read-crc-pipe-d:
    - shard-kbl:          NOTRUN -> SKIP [fdo#109271] / [fdo#109278] +6

  * igt@kms_plane@plane-panning-bottom-right-suspend-pipe-c-planes:
    - shard-kbl:          PASS -> DMESG-WARN [fdo#108566]

  * igt@kms_plane_alpha_blend@pipe-a-alpha-opaque-fb:
    - shard-glk:          NOTRUN -> FAIL [fdo#108145]

  * igt@kms_plane_alpha_blend@pipe-a-constant-alpha-max:
    - shard-apl:          NOTRUN -> FAIL [fdo#108145]

  * igt@kms_plane_scaling@pipe-a-scaler-with-pixel-format:
    - shard-glk:          PASS -> SKIP [fdo#109271] / [fdo#109278]

  * igt@kms_psr2_su@frontbuffer:
    - shard-iclb:         PASS -> SKIP [fdo#109642]

  * igt@kms_psr@psr2_primary_mmap_cpu:
    - shard-iclb:         PASS -> SKIP [fdo#109441] +1

  * igt@kms_psr@psr2_sprite_blt:
    - shard-iclb:         NOTRUN -> SKIP [fdo#109441] +1

  * igt@kms_psr@sprite_mmap_gtt:
    - shard-iclb:         PASS -> FAIL [fdo#107383] / [fdo#110215] +1

  * igt@kms_rotation_crc@multiplane-rotation-cropping-bottom:
    - shard-kbl:          PASS -> DMESG-FAIL [fdo#105763]

  * igt@kms_setmode@basic:
    - shard-apl:          PASS -> FAIL [fdo#99912]
    - shard-kbl:          PASS -> FAIL [fdo#99912]

  * igt@perf@unprivileged-single-ctx-counters:
    - shard-iclb:         NOTRUN -> SKIP [fdo#109289] +2

  * igt@prime_nv_api@i915_nv_double_export:
    - shard-iclb:         NOTRUN -> SKIP [fdo#109291]

  * igt@prime_nv_pcopy@test3_4:
    - shard-kbl:          NOTRUN -> SKIP [fdo#109271] +37

  * igt@tools_test@tools_test:
    - shard-iclb:         PASS -> SKIP [fdo#109352]

  
#### Possible fixes ####

  * igt@i915_pm_rpm@fences:
    - shard-iclb:         INCOMPLETE [fdo#107713] / [fdo#108840] -> PASS

  * igt@i915_selftest@live_workarounds:
    - shard-iclb:         DMESG-FAIL [fdo#108954] -> PASS

  * igt@kms_busy@extended-modeset-hang-oldfb-render-c:
    - shard-apl:          INCOMPLETE [fdo#103927] -> PASS

  * igt@kms_flip@dpms-vs-vblank-race:
    - shard-apl:          FAIL [fdo#103060] -> PASS

  * igt@kms_flip@flip-vs-expired-vblank:
    - shard-glk:          FAIL [fdo#105363] -> PASS

  * igt@kms_flip_tiling@flip-x-tiled:
    - shard-iclb:         FAIL [fdo#108303] -> PASS

  * igt@kms_frontbuffer_tracking@fbcpsr-1p-primscrn-pri-shrfb-draw-pwrite:
    - shard-iclb:         FAIL [fdo#103167] -> PASS +7

  * igt@kms_frontbuffer_tracking@psr-1p-primscrn-pri-shrfb-draw-mmap-gtt:
    - shard-iclb:         FAIL [fdo#109247] -> PASS +9

  * igt@kms_psr@cursor_mmap_gtt:
    - shard-iclb:         FAIL [fdo#107383] / [fdo#110215] -> PASS +2

  * igt@kms_psr@no_drrs:
    - shard-iclb:         FAIL [fdo#108341] -> PASS

  * igt@kms_psr@psr2_cursor_mmap_cpu:
    - shard-iclb:         SKIP [fdo#109441] -> PASS

  * igt@kms_universal_plane@universal-plane-pipe-b-functional:
    - shard-glk:          FAIL [fdo#110037] -> PASS
    - shard-apl:          FAIL [fdo#110037] -> PASS
    - shard-kbl:          FAIL [fdo#110037] -> PASS

  * igt@kms_vblank@pipe-c-ts-continuation-suspend:
    - shard-apl:          DMESG-WARN [fdo#108566] -> PASS +7

  
  [fdo#103060]: https://bugs.freedesktop.org/show_bug.cgi?id=103060
  [fdo#103167]: https://bugs.freedesktop.org/show_bug.cgi?id=103167
  [fdo#103665]: https://bugs.freedesktop.org/show_bug.cgi?id=103665
  [fdo#103833]: https://bugs.freedesktop.org/show_bug.cgi?id=103833
  [fdo#103927]: https://bugs.freedesktop.org/show_bug.cgi?id=103927
  [fdo#105363]: https://bugs.freedesktop.org/show_bug.cgi?id=105363
  [fdo#105763]: https://bugs.freedesktop.org/show_bug.cgi?id=105763
  [fdo#106641]: https://bugs.freedesktop.org/show_bug.cgi?id=106641
  [fdo#107383]: https://bugs.freedesktop.org/show_bug.cgi?id=107383
  [fdo#107713]: https://bugs.freedesktop.org/show_bug.cgi?id=107713
  [fdo#108145]: https://bugs.freedesktop.org/show_bug.cgi?id=108145
  [fdo#108303]: https://bugs.freedesktop.org/show_bug.cgi?id=108303
  [fdo#108341]: https://bugs.freedesktop.org/show_bug.cgi?id=108341
  [fdo#108566]: https://bugs.freedesktop.org/show_bug.cgi?id=108566
  [fdo#108840]: https://bugs.freedesktop.org/show_bug.cgi?id=108840
  [fdo#108954]: https://bugs.freedesktop.org/show_bug.cgi?id=108954
  [fdo#109247]: https://bugs.freedesktop.org/show_bug.cgi?id=109247
  [fdo#109271]: https://bugs.freedesktop.org/show_bug.cgi?id=109271
  [fdo#109274]: https://bugs.freedesktop.org/show_bug.cgi?id=109274
  [fdo#109276]: https://bugs.freedesktop.org/show_bug.cgi?id=109276
  [fdo#109277]: https://bugs.freedesktop.org/show_bug.cgi?id=109277
  [fdo#109278]: https://bugs.freedesktop.org/show_bug.cgi?id=109278
  [fdo#109279]: https://bugs.freedesktop.org/show_bug.cgi?id=109279
  [fdo#109280]: https://bugs.freedesktop.org/show_bug.cgi?id=109280
  [fdo#109284]: https://bugs.freedesktop.org/show_bug.cgi?id=109284
  [fdo#109285]: https://bugs.freedesktop.org/show_bug.cgi?id=109285
  [fdo#109289]: https://bugs.freedesktop.org/show_bug.cgi?id=109289
  [fdo#109290]: https://bugs.freedesktop.org/show_bug.cgi?id=109290
  [fdo#109291]: https://bugs.freedesktop.org/show_bug.cgi?id=109291
  [fdo#109301]: https://bugs.freedesktop.org/show_bug.cgi?id=109301
  [fdo#109308]: https://bugs.freedesktop.org/show_bug.cgi?id=109308
  [fdo#109310]: https://bugs.freedesktop.org/show_bug.cgi?id=109310
  [fdo#109352]: https://bugs.freedesktop.org/show_bug.cgi?id=109352
  [fdo#109441]: https://bugs.freedesktop.org/show_bug.cgi?id=109441
  [fdo#109642]: https://bugs.freedesktop.org/show_bug.cgi?id=109642
  [fdo#109660]: https://bugs.freedesktop.org/show_bug.cgi?id=109660
  [fdo#110037]: https://bugs.freedesktop.org/show_bug.cgi?id=110037
  [fdo#110206]: https://bugs.freedesktop.org/show_bug.cgi?id=110206
  [fdo#110215]: https://bugs.freedesktop.org/show_bug.cgi?id=110215
  [fdo#110281]: https://bugs.freedesktop.org/show_bug.cgi?id=110281
  [fdo#110321]: https://bugs.freedesktop.org/show_bug.cgi?id=110321
  [fdo#110336]: https://bugs.freedesktop.org/show_bug.cgi?id=110336
  [fdo#110376]: https://bugs.freedesktop.org/show_bug.cgi?id=110376
  [fdo#99912]: https://bugs.freedesktop.org/show_bug.cgi?id=99912


Participating hosts (10 -> 6)
------------------------------

  Missing    (4): pig-skl-6260u shard-skl pig-hsw-4770r pig-glk-j5005 


Build changes
-------------

    * IGT: IGT_4943 -> IGTPW_2842
    * Piglit: piglit_4509 -> None

  CI_DRM_5909: af07fbb536d0728e381cc001cac5bc259c41fe02 @ git://anongit.freedesktop.org/gfx-ci/linux
  IGTPW_2842: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_2842/
  IGT_4943: 5941f371b0fe25084d4b1c49882faa8d41d44c9f @ git://anongit.freedesktop.org/xorg/app/intel-gpu-tools
  piglit_4509: fdc5a4ca11124ab8413c7988896eec4c97336694 @ git://anongit.freedesktop.org/piglit

== Logs ==

For more details see: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_2842/
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