Bug: Intermittent TEST-UNEXPECTED-TIMEOUT | browser/components/sessionstore/test/browser_scrollPositions.js | application timed out after 370 seconds with no output
Status: RESOLVED
Priority: P5
Resolution: INCOMPLETE
Created: 2021-10-13 01:43:28+00:00
Resolved: 2021-11-09 17:00:23+00:00

**Filed by:** malexandru [at] mozilla.com
**Parsed log:** https://treeherder.mozilla.org/logviewer?job_id=354594493&repo=mozilla-central
**Full log:** https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/f3nZzILAQAiaC_PeENN1QQ/runs/0/artifacts/public/logs/live_backing.log

---
```
[task 2021-10-13T00:47:29.513Z] 00:47:28     INFO - TEST-PASS | browser/components/sessionstore/test/browser_scrollPositions.js | can go back - 
[task 2021-10-13T00:47:32.302Z] 00:47:32     INFO - Buffered messages logged at 00:36:54
[task 2021-10-13T00:47:36.011Z] 00:47:35     INFO - Longer timeout required, waiting longer...  Remaining timeouts: 8
[task 2021-10-13T00:47:38.756Z] 00:47:38     INFO - Buffered messages finished
[task 2021-10-13T00:47:40.420Z] 00:47:40    ERROR - TEST-UNEXPECTED-TIMEOUT | browser/components/sessionstore/test/browser_scrollPositions.js | application timed out after 370 seconds with no output
[task 2021-10-13T00:47:41.299Z] 00:47:41    ERROR - Force-terminating active process(es).
[task 2021-10-13T00:47:41.848Z] 00:47:41     INFO - Determining child pids from psutil...
[task 2021-10-13T00:47:42.490Z] 00:47:42     INFO - [322, 352, 413, 467, 549, 599, 656, 681, 711, 733, 763, 785, 815, 837, 867, 889, 919, 941, 971, 997, 1020, 1050, 1072, 1102, 1128, 1154, 1155, 1201, 1227, 1255, 1281, 1307, 1333, 1359, 1383, 1415, 1445, 1450, 1512, 1546, 1605, 1631, 1694, 1724, 1751, 1778, 1805, 1835, 1863, 1890, 1912, 1939, 1975, 2011, 2012, 2032, 2039, 2097, 2098, 2151, 2152, 2153, 2224, 2259, 2286, 2314, 2315, 2371, 2406, 2433, 2460, 2487, 2514, 2537, 2568, 2595, 2695, 2722, 2749, 2776, 2803, 2830, 2858, 2884, 2984, 3011, 3038, 3065, 3094, 3121, 3148, 3149, 3197, 3223, 3250, 3278, 3313, 3314, 3362, 3395, 3421, 25584, 25587, 25656, 25695, 25696, 25759, 25760, 25761, 25836, 25837, 25896, 25897, 25951, 25952, 25953, 26061, 26113, 26127, 26128, 26130, 26206, 26259, 26271, 26300, 26301, 26363, 26437, 26438, 26440, 26441, 26532, 26537, 26548, 26549, 26646, 26667, 26668, 26669, 26686, 26768, 26774, 26775, 26803, 26852, 26883, 26909, 26943, 26988, 26989, 26990, 27062, 27063, 27064, 27069, 27166, 27241, 27242, 27243, 27299, 27334, 27382, 27412, 27413, 27414, 27435, 27503, 27504, 27560, 27565, 27566, 27622, 27664, 27665, 27703, 27719, 27770, 27771, 27772, 27835, 27844, 27845, 27894, 27900, 27986, 27987, 27988, 27993, 28090, 28091, 28096, 28097, 28171, 28172, 28200, 28201, 28202, 28203, 28276, 28278, 28392, 28405, 28447, 28448, 28507, 28533, 28534, 28581, 28620, 28646, 28647, 28694, 28735, 28736, 28783, 28788, 28840, 28873, 28874, 28925, 28926, 28973, 29003, 29029, 29055, 29081, 29114, 29145, 29172, 29198, 29231, 29257, 29283, 29309, 29335, 29361, 29387, 29413, 29439, 29465, 29491, 29523, 29556, 29587, 29613, 29641, 29667, 29695, 29721, 29749, 29777, 29805, 29806, 29860, 29887, 29913, 29939, 29965, 29991, 30017, 30043, 30069, 30095, 30121, 30154, 30180, 30206, 30232, 30258, 30288, 30321, 30347, 30386, 30412, 30473, 30504, 30530, 30556, 30582, 30608, 30634, 30688, 30723, 30753, 30783, 30809, 30835, 30861, 30891, 30917, 30948, 30974, 31004, 31030, 31056, 31082, 31108, 31134, 31160, 31186, 31212, 31234, 31264, 31286, 31316, 31338, 31368, 31390, 31420, 31442, 31472, 31494, 31524, 31546, 31576, 31598, 31628, 31650, 31680, 31702, 31732, 31754, 31784, 31806, 31836, 31858, 31888, 31910, 31940, 31962, 31992, 32014, 32044, 32066, 32096, 32121, 32147, 32173, 32203, 32225, 32255, 32277, 32307, 32329, 32359, 32381, 32411, 32433, 32463, 32485, 32515, 32537, 32567, 32589, 32619, 32641, 32671, 32693, 32723, 32745]
[task 2021-10-13T00:47:43.462Z] 00:47:43     INFO - ==> process 25507 launched child process 25529
<...>
[task 2021-10-13T00:55:52.881Z] 00:55:51     INFO - ==> process 25507 launched child process 3421
[task 2021-10-13T00:55:54.432Z] 00:55:53     INFO - Found child pids: {30721, 30723, 26646, 28694, 30753, 26667, 26668, 26669, 2097, 2098, 30774, 30781, 26686, 28735, 28736, 30783, 30809, 2151, 2152, 2153, 28783, 30835, 28788, 30861, 26768, 26774, 26775, 28840, 30891, 2224, 26803, 30917, 28873, 28874, 2259, 26852, 30948, 2286, 28925, 28926, 30974, 26883, 2314, 2315, 31004, 26909, 28973, 31030, 26943, 322, 2371, 29003, 31056, 352, 29029, 2406, 31082, 26988, 26989, 26990, 29055, 2433, 31108, 29081, 2460, 413, 31134, 27062, 2487, 27063, 27064, 29114, 31160, 27069, 2514, 467, 31186, 29145, 2537, 31212, 29172, 31234, 2568, 29198, 27166, 31264, 2595, 549, 29231, 31286, 29257, 31316, 599, 29283, 27241, 27242, 27243, 31338, 29309, 2695, 31368, 656, 29335, 31390, 2722, 27299, 681, 29361, 31420, 2749, 27334, 711, 29387, 31442, 2776, 733, 29413, 31472, 2803, 27382, 763, 29439, 31494, 2830, 785, 27412, 27413, 27414, 29465, 31524, 2858, 27435, 815, 29491, 31546, 2884, 837, 29523, 31576, 867, 31598, 27503, 27504, 29556, 889, 31628, 29587, 919, 31650, 2984, 27560, 941, 27565, 27566, 29613, 25529, 31680, 3011, 29639, 29641, 971, 31702, 3038, 29667, 997, 27622, 25584, 25587, 31732, 3065, 1020, 29693, 29695, 31754, 27664, 27665, 3092, 3094, 29721, 1050, 31784, 1072, 3121, 29747, 29749, 27703, 25656, 31806, 27719, 3148, 3149, 1102, 29775, 29777, 31836, 25695, 25696, 1128, 29803, 29805, 29806, 31858, 27770, 27771, 27772, 3197, 1154, 1155, 31888, 3223, 25759, 25760, 25761, 29860, 31910, 1201, 3250, 27835, 29887, 27844, 27845, 31940, 1227, 3278, 29913, 31962, 1255, 25836, 25837, 3313, 3314, 29939, 27894, 31992, 27900, 1281, 29965, 32014, 1307, 3362, 29991, 25896, 25897, 32044, 1330, 1333, 30017, 32066, 3395, 1359, 27986, 27987, 27988, 27993, 30043, 3421, 25951, 25952, 25953, 32096, 1381, 1383, 30069, 32121, 1405, 1415, 30095, 32147, 1445, 30121, 1450, 32173, 28090, 28091, 28096, 28097, 30154, 32203, 26061, 32225, 30180, 1512, 30206, 32255, 26113, 1546, 28171, 28172, 26127, 26128, 26130, 32277, 30232, 28200, 28201, 28202, 28203, 30258, 32307, 1605, 32329, 30288, 26206, 1631, 32359, 30321, 28276, 28278, 32381, 30347, 26259, 32411, 1694, 26271, 32433, 30386, 1724, 26300, 26301, 30412, 32463, 1751, 32485, 28392, 1778, 28405, 26363, 32515, 30473, 1805, 32537, 28447, 28448, 30504, 1835, 32567, 30530, 26437, 26438, 1863, 26440, 26441, 32589, 28507, 30556, 1890, 32619, 28533, 28534, 30582, 1912, 32641, 30608, 1939, 32671, 26532, 28581, 26537, 30634, 26548, 26549, 32693, 1975, 30660, 30663, 28620, 30671, 30673, 32723, 2011, 2012, 30686, 30688, 28646, 28647, 32745, 2032, 2039, 30719}
[task 2021-10-13T00:55:55.986Z] 00:55:54     INFO - Failed to get child procs
[task 2021-10-13T00:55:57.069Z] 00:55:56     INFO - Killing process: 30721
[task 2021-10-13T00:55:59.099Z] 00:55:57     INFO - TEST-INFO | started process screentopng
[task 2021-10-13T01:12:37.469Z] 01:12:37     INFO - Automation Error: mozprocess timed out after 1000 seconds running ['/builds/worker/workspace/build/venv/bin/python', '-u', '/builds/worker/workspace/build/tests/mochitest/runtests.py', 'accessible/tests/browser/bounds/browser.ini', 'accessible/tests/browser/e10s/browser.ini', 'accessible/tests/browser/mac/browser.ini', 'browser/base/content/test/fullscreen/browser.ini', 'browser/base/content/test/notificationbox/browser.ini', 'browser/base/content/test/performance/hidpi/browser.ini', 'browser/base/content/test/performance/lowdpi/browser.ini', 'browser/base/content/test/referrer/browser.ini', 'browser/base/content/test/startup/browser.ini', 'browser/base/content/test/static/browser.ini', 'browser/base/content/test/sync/browser.ini', 'browser/base/content/test/tabs/browser.ini', 'browser/base/content/test/touch/browser.ini', 'browser/base/content/test/webrtc/browser.ini', 'browser/base/content/test/zoom/browser.ini', 'browser/components/attribution/test/browser/browser.ini', 'browser/components/enterprisepolicies/tests/browser/disable_default_bookmarks/browser.ini', 'browser/components/enterprisepolicies/tests/browser/hardware_acceleration/browser.ini', 'browser/components/enterprisepolicies/tests/browser/managedbookmarks/browser.ini', 'browser/components/payments/test/browser/browser.ini', 'browser/components/sessionstore/test/browser.ini', 'browser/components/syncedtabs/test/browser/browser.ini', 'browser/components/touchbar/tests/browser/browser.ini', 'browser/components/urlbar/tests/browser-updateResults/browser.ini', 'browser/extensions/report-site-issue/test/browser/browser.ini', 'caps/tests/mochitest/browser.ini', 'dom/crypto/test/browser/browser.ini', 'dom/html/test/browser.ini', 'dom/indexedDB/test/browser.ini', 'dom/ipc/tests/JSProcessActor/browser.ini', 'dom/ipc/tests/browser.ini', 'dom/localstorage/test/browser.ini', 'dom/media/mediacontrol/tests/browser/browser.ini', 'dom/payments/test/browser.ini', 'dom/plugins/test/mochitest/browser.ini', 'dom/quota/test/browser/browser.ini', 'dom/reporting/tests/browser.ini', 'dom/security/test/referrer-policy/browser.ini', 'dom/serviceworkers/test/isolated/multi-e10s-update/browser.ini', 'dom/url/tests/browser.ini', 'layout/tools/layout-debug/tests/browser/browser.ini', 'netwerk/cookie/test/browser/browser.ini', 'startupcache/test/browser/browser.ini', 'testing/mochitest/baselinecoverage/browser_chrome/browser.ini', 'testing/modules/tests/browser/browser.ini', 'toolkit/components/aboutconfig/test/browser/browser.ini', 'toolkit/components/enterprisepolicies/tests/browser/browser.ini', 'toolkit/components/pdfjs/test/browser.ini', 'toolkit/components/pictureinpicture/tests/browser.ini', 'toolkit/components/processtools/tests/browser/browser.ini', 'toolkit/components/satchel/test/browser/browser.ini', 'toolkit/content/tests/browser/browser.ini', 'toolkit/mozapps/downloads/tests/browser/browser.ini', 'toolkit/mozapps/update/tests/browser/browser.bits.ini', 'toolkit/xre/test/browser.ini', 'widget/tests/browser/browser.ini', '--enable-webrender', '--setpref=gfx.webrender.software=true', '--setpref=fission.autostart=true', '--setpref=media.peerconnection.mtransport_process=false', '--setpref=network.process.enabled=false', '--setpref=layers.d3d11.enable-blacklist=false', '--appname=/builds/worker/workspace/build/application/firefox/firefox', '--utility-path=tests/bin', '--extra-profile-file=tests/bin/plugins', '--symbols-path=https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/cDRAubOiTtqioVv8_lX2nQ/artifacts/public/build/target.crashreporter-symbols.zip', '--certificate-path=tests/certs', '--setpref=webgl.force-enabled=true', '--quiet', '--log-raw=/builds/worker/workspace/build/blobber_upload_dir/mochitest-browser-chrome_raw.log', '--log-errorsummary=/builds/worker/workspace/build/blobber_upload_dir/mochitest-browser-chrome_errorsummary.log', '--use-test-media-devices', '--screenshot-on-fail', '--cleanup-crashes', '--marionette-startup-timeout=180', '--sandbox-read-whitelist=/builds/worker/workspace/build', '--log-raw=-', '--flavor=browser', '--chunk-by-runtime']
[task 2021-10-13T01:12:37.480Z] 01:12:37    ERROR - timed out after 1000 seconds of no output
[task 2021-10-13T01:12:37.480Z] 01:12:37    ERROR - Return code: -15
[task 2021-10-13T01:12:37.480Z] 01:12:37    ERROR - No suite end message was emitted by this harness.
[task 2021-10-13T01:12:37.480Z] 01:12:37     INFO - TinderboxPrint: mochitest-mochitest-browser-chrome<br/>538/0/0
[task 2021-10-13T01:12:37.480Z] 01:12:37    ERROR - # TBPL FAILURE #
[task 2021-10-13T01:12:37.480Z] 01:12:37  WARNING - setting return code to 2
[task 2021-10-13T01:12:37.480Z] 01:12:37    ERROR - The mochitest suite: mochitest-browser-chrome ran with return status: FAILURE
[task 2021-10-13T01:12:37.481Z] 01:12:37     INFO - Running post-action listener: _package_coverage_data
[task 2021-10-13T01:12:40.487Z] Error: No objdir path for self-hosted.
```