Bug: Intermittent browser/base/content/test/general/browser_ctrlTab.js | application terminated with exit code -6
Status: RESOLVED
Priority: P5
Resolution: DUPLICATE
Created: 2021-01-24 23:35:29+00:00
Resolved: 2021-03-22 21:00:39+00:00

**Filed by:** dluca [at] mozilla.com
**Parsed log:** https://treeherder.mozilla.org/logviewer?job_id=327643785&repo=autoland
**Full log:** https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/f96HeiomQyOtquO2ZxtB0Q/runs/0/artifacts/public/logs/live_backing.log

---
```
INFO - TEST-START | browser/base/content/test/general/browser_ctrlTab.js
[task 2021-01-24T20:44:50.776Z] 20:44:50     INFO - GECKO(1869) | [xcb] Unknown sequence number while processing queue
[task 2021-01-24T20:44:50.777Z] 20:44:50     INFO - GECKO(1869) | [xcb] Most likely this is a multi-threaded client and XInitThreads has not been called
[task 2021-01-24T20:44:50.777Z] 20:44:50     INFO - GECKO(1869) | [xcb] Aborting, sorry about that.
[task 2021-01-24T20:44:50.779Z] 20:44:50     INFO - GECKO(1869) | firefox: ../../src/xcb_io.c:259: poll_for_event: Assertion `!xcb_xlib_threads_sequence_lost' failed.
[task 2021-01-24T20:44:50.871Z] 20:44:50     INFO - GECKO(1869) | Exiting due to channel error.
[task 2021-01-24T20:44:50.872Z] 20:44:50     INFO - GECKO(1869) | Exiting due to channel error.
[task 2021-01-24T20:44:50.873Z] 20:44:50     INFO - GECKO(1869) | Crash Annotation GraphicsCriticalError: |[C0][GFX1-]: Receive IPC close with reason=AbnormalShutdown (t=88.4477) [GFX1-]: Receive IPC close with reason=AbnormalShutdown
[task 2021-01-24T20:44:50.874Z] 20:44:50     INFO - GECKO(1869) | Exiting due to channel error.
[task 2021-01-24T20:44:50.874Z] 20:44:50     INFO - GECKO(1869) | Crash Annotation GraphicsCriticalError: |[C0][GFX1-]: Receive IPC close with reason=AbnormalShutdown (t=89.6928) [GFX1-]: Receive IPC close with reason=AbnormalShutdown
[task 2021-01-24T20:44:50.877Z] 20:44:50     INFO - GECKO(1869) | Exiting due to channel error.
[task 2021-01-24T20:44:50.877Z] 20:44:50     INFO - GECKO(1869) | Exiting due to channel error.
[task 2021-01-24T20:44:50.877Z] 20:44:50     INFO - GECKO(1869) | Exiting due to channel error.
[task 2021-01-24T20:44:51.058Z] 20:44:51     INFO - TEST-INFO | Main app process: killed by SIGIOT
[task 2021-01-24T20:44:51.058Z] 20:44:51     INFO - Buffered messages logged at 20:44:49
[task 2021-01-24T20:44:51.058Z] 20:44:51     INFO - Entering test bound 
[task 2021-01-24T20:44:51.059Z] 20:44:51     INFO - TEST-PASS | browser/base/content/test/general/browser_ctrlTab.js | number of open tabs should be 4 - 
[task 2021-01-24T20:44:51.060Z] 20:44:51     INFO - Global property added while loading chrome://browser/content/browser-allTabsMenu.js: TabsPanel
[task 2021-01-24T20:44:51.060Z] 20:44:51     INFO - TEST-PASS | browser/base/content/test/general/browser_ctrlTab.js | Selected tab doesn't change while tabbing - 
[task 2021-01-24T20:44:51.060Z] 20:44:51     INFO - TEST-PASS | browser/base/content/test/general/browser_ctrlTab.js | With 4 tabs open, Ctrl+Tab opens the preview panel - 
[task 2021-01-24T20:44:51.060Z] 20:44:51     INFO - TEST-PASS | browser/base/content/test/general/browser_ctrlTab.js | Releasing Ctrl closes the preview panel - 
[task 2021-01-24T20:44:51.061Z] 20:44:51     INFO - TEST-PASS | browser/base/content/test/general/browser_ctrlTab.js | With 4 tabs open and tab 2 selected, Ctrl+Tab*1 goes back to the previously selected tab - 
[task 2021-01-24T20:44:51.061Z] 20:44:51     INFO - TEST-PASS | browser/base/content/test/general/browser_ctrlTab.js | Content document doesn't capture Keyup event during cycling tabs - 
[task 2021-01-24T20:44:51.062Z] 20:44:51     INFO - Buffered messages logged at 20:44:50
[task 2021-01-24T20:44:51.062Z] 20:44:51     INFO - TEST-PASS | browser/base/content/test/general/browser_ctrlTab.js | Selected tab doesn't change while tabbing - 
[task 2021-01-24T20:44:51.062Z] 20:44:51     INFO - TEST-PASS | browser/base/content/test/general/browser_ctrlTab.js | Selected tab doesn't change while tabbing - 
[task 2021-01-24T20:44:51.062Z] 20:44:51     INFO - TEST-PASS | browser/base/content/test/general/browser_ctrlTab.js | With 4 tabs open, Ctrl+Tab opens the preview panel - 
[task 2021-01-24T20:44:51.062Z] 20:44:51     INFO - TEST-PASS | browser/base/content/test/general/browser_ctrlTab.js | Releasing Ctrl closes the preview panel - 
[task 2021-01-24T20:44:51.062Z] 20:44:51     INFO - TEST-PASS | browser/base/content/test/general/browser_ctrlTab.js | With 4 tabs open and tab 1 selected, Ctrl+Tab*2 goes 2 tabs back in most-recently-selected order - 
[task 2021-01-24T20:44:51.062Z] 20:44:51     INFO - TEST-PASS | browser/base/content/test/general/browser_ctrlTab.js | Content document doesn't capture Keyup event during cycling tabs - 
[task 2021-01-24T20:44:51.062Z] 20:44:51     INFO - TEST-PASS | browser/base/content/test/general/browser_ctrlTab.js | Selected tab doesn't change while tabbing - 
[task 2021-01-24T20:44:51.062Z] 20:44:51     INFO - TEST-PASS | browser/base/content/test/general/browser_ctrlTab.js | Selected tab doesn't change while tabbing - 
[task 2021-01-24T20:44:51.062Z] 20:44:51     INFO - TEST-PASS | browser/base/content/test/general/browser_ctrlTab.js | Selected tab doesn't change while tabbing - 
[task 2021-01-24T20:44:51.062Z] 20:44:51     INFO - TEST-PASS | browser/base/content/test/general/browser_ctrlTab.js | Selected tab doesn't change while tabbing - 
[task 2021-01-24T20:44:51.062Z] 20:44:51     INFO - TEST-PASS | browser/base/content/test/general/browser_ctrlTab.js | With 4 tabs open, Ctrl+Tab opens the preview panel - 
[task 2021-01-24T20:44:51.062Z] 20:44:51     INFO - TEST-PASS | browser/base/content/test/general/browser_ctrlTab.js | Releasing Ctrl closes the preview panel - 
[task 2021-01-24T20:44:51.067Z] 20:44:51     INFO - TEST-PASS | browser/base/content/test/general/browser_ctrlTab.js | With 4 tabs open and tab 2 selected, Ctrl+Tab*4 goes 0 tabs back in most-recently-selected order - 
[task 2021-01-24T20:44:51.067Z] 20:44:51     INFO - TEST-PASS | browser/base/content/test/general/browser_ctrlTab.js | Content document doesn't capture Keyup event during cycling tabs - 
[task 2021-01-24T20:44:51.067Z] 20:44:51     INFO - Buffered messages finished
[task 2021-01-24T20:44:51.068Z] 20:44:51    ERROR - TEST-UNEXPECTED-FAIL | browser/base/content/test/general/browser_ctrlTab.js | application terminated with exit code -6
[task 2021-01-24T20:44:51.068Z] 20:44:51     INFO - runtests.py | Application ran for: 0:01:36.606114
[task 2021-01-24T20:44:51.068Z] 20:44:51     INFO - zombiecheck | Reading PID log: /tmp/tmpftdv2Tpidlog
[task 2021-01-24T20:44:51.068Z] 20:44:51     INFO - ==> process 1869 launched child process 1889
[task 2021-01-24T20:44:51.068Z] 20:44:51     INFO - ==> process 1869 launched child process 1922
[task 2021-01-24T20:44:51.069Z] 20:44:51     INFO - ==> process 1869 launched child process 1935
[task 2021-01-24T20:44:51.069Z] 20:44:51     INFO - ==> process 1869 launched child process 2003
[task 2021-01-24T20:44:51.069Z] 20:44:51     INFO - ==> process 1869 launched child process 2031
[task 2021-01-24T20:44:51.070Z] 20:44:51     INFO - ==> process 1869 launched child process 2061
[task 2021-01-24T20:44:51.070Z] 20:44:51     INFO - ==> process 1869 launched child process 2066
[task 2021-01-24T20:44:51.071Z] 20:44:51     INFO - zombiecheck | Checking for orphan process with PID: 1889
[task 2021-01-24T20:44:51.072Z] 20:44:51     INFO - zombiecheck | Checking for orphan process with PID: 1922
[task 2021-01-24T20:44:51.072Z] 20:44:51     INFO - zombiecheck | Checking for orphan process with PID: 2061
[task 2021-01-24T20:44:51.072Z] 20:44:51     INFO - zombiecheck | Checking for orphan process with PID: 2031
[task 2021-01-24T20:44:51.073Z] 20:44:51     INFO - zombiecheck | Checking for orphan process with PID: 2066
[task 2021-01-24T20:44:51.073Z] 20:44:51     INFO - zombiecheck | Checking for orphan process with PID: 2003
[task 2021-01-24T20:44:51.075Z] 20:44:51     INFO - zombiecheck | Checking for orphan process with PID: 1935
[task 2021-01-24T20:44:51.075Z] 20:44:51     INFO - Stopping web server
[task 2021-01-24T20:44:51.076Z] 20:44:51     INFO - Stopping web socket server
[task 2021-01-24T20:44:51.078Z] 20:44:51     INFO - Stopping ssltunnel
[task 2021-01-24T20:44:51.099Z] 20:44:51  WARNING - leakcheck | refcount logging is off, so leaks can't be detected!
[task 2021-01-24T20:44:51.099Z] 20:44:51     INFO - runtests.py | Running tests: end.
[task 2021-01-24T20:44:51.120Z] 20:44:51     INFO - Buffered messages finished
[task 2021-01-24T20:44:51.120Z] 20:44:51     INFO - Running manifest: browser/base/content/test/popups/browser.ini
[task 2021-01-24T20:44:51.141Z] 20:44:51     INFO -  Setting pipeline to PAUSED ...
[task 2021-01-24T20:44:51.141Z] 20:44:51     INFO -  Pipeline is PREROLLING ...
[task 2021-01-24T20:44:51.142Z] 20:44:51     INFO -  Pipeline is PREROLLED ...
[task 2021-01-24T20:44:51.142Z] 20:44:51     INFO -  Setting pipeline to PLAYING ...
[task 2021-01-24T20:44:51.143Z] 20:44:51     INFO -  New clock: GstSystemClock
[task 2021-01-24T20:44:51.179Z] 20:44:51     INFO -  Got EOS from element "pipeline0".
[task 2021-01-24T20:44:51.179Z] 20:44:51     INFO -  Execution ended after 0:00:00.033016519
[task 2021-01-24T20:44:51.179Z] 20:44:51     INFO -  Setting pipeline to PAUSED ...
[task 2021-01-24T20:44:51.179Z] 20:44:51     INFO -  Setting pipeline to READY ...
[task 2021-01-24T20:44:51.179Z] 20:44:51     INFO -  (gst-launch-1.0:2193): GStreamer-CRITICAL **: 20:44:51.175: gst_object_unref: assertion '((GObject *) object)->ref_count > 0' failed
[task 2021-01-24T20:44:51.179Z] 20:44:51     INFO -  Setting pipeline to NULL ...
[task 2021-01-24T20:44:51.179Z] 20:44:51     INFO -  Freeing pipeline ...
[task 2021-01-24T20:44:51.207Z] 20:44:51     INFO - INFO | runtests.py | ASan using symbolizer at /builds/worker/workspace/build/application/firefox/llvm-symbolizer
[task 2021-01-24T20:44:51.214Z] 20:44:51     INFO - INFO | runtests.py | ASan running in default memory configuration
[task 2021-01-24T20:44:51.214Z] 20:44:51     INFO - UBSan enabled.
[task 2021-01-24T20:44:51.592Z] 20:44:51     INFO - PID 2211 | pk12util: PKCS12 IMPORT SUCCESSFUL
[task 2021-01-24T20:44:51.612Z] 20:44:51     INFO - Increasing default timeout to 90 seconds
[task 2021-01-24T20:44:51.612Z] 20:44:51     INFO - INFO | runtests.py | ASan using symbolizer at /builds/worker/workspace/build/application/firefox/llvm-symbolizer
[task 2021-01-24T20:44:51.616Z] 20:44:51     INFO - LSan enabled.
[task 2021-01-24T20:44:51.617Z] 20:44:51     INFO - INFO | runtests.py | ASan running in default memory configuration
[task 2021-01-24T20:44:51.619Z] 20:44:51     INFO - UBSan enabled.
[task 2021-01-24T20:44:51.621Z] 20:44:51     INFO - INFO | runtests.py | ASan using symbolizer at /builds/worker/workspace/build/application/firefox/llvm-symbolizer
[task 2021-01-24T20:44:51.622Z] 20:44:51     INFO - INFO | runtests.py | ASan running in default memory configuration
[task 2021-01-24T20:44:51.622Z] 20:44:51     INFO - UBSan enabled.
[task 2021-01-24T20:44:51.625Z] 20:44:51     INFO - MochitestServer : launching [u'/builds/worker/workspace/build/tests/bin/xpcshell', '-g', '/builds/worker/workspace/build/application/firefox', '-f', '/builds/worker/workspace/build/tests/bin/components/httpd.js', '-e', "const _PROFILE_PATH = '/tmp/tmpmWKkFa.mozrunner'; const _SERVER_PORT = '8888'; const _SERVER_ADDR = '127.0.0.1'; const _TEST_PREFIX = undefined; const _DISPLAY_RESULTS = false;", '-f', '/builds/worker/workspace/build/tests/mochitest/server.js']
[task 2021-01-24T20:44:51.626Z] 20:44:51     INFO - runtests.py | Server pid: 2218
[task 2021-01-24T20:44:51.630Z] 20:44:51     INFO - runtests.py | Websocket server pid: 2221
[task 2021-01-24T20:44:51.631Z] 20:44:51     INFO - INFO | runtests.py | ASan using symbolizer at /builds/worker/workspace/build/application/firefox/llvm-symbolizer
[task 2021-01-24T20:44:51.646Z] 20:44:51     INFO - INFO | runtests.py | ASan running in default memory configuration
[task 2021-01-24T20:44:51.646Z] 20:44:51     INFO - UBSan enabled.
[task 2021-01-24T20:44:51.662Z] 20:44:51     INFO - runtests.py | SSL tunnel pid: 2226
[task 2021-01-24T20:44:52.067Z] 20:44:52     INFO - runtests.py | Running with scheme: http
[task 2021-01-24T20:44:52.067Z] 20:44:52     INFO - runtests.py | Running with e10s: True
[task 2021-01-24T20:44:52.067Z] 20:44:52     INFO - runtests.py | Running with fission: False
[task 2021-01-24T20:44:52.067Z] 20:44:52     INFO - runtests.py | Running with cross-origin iframes: False
[task 2021-01-24T20:44:52.067Z] 20:44:52     INFO - runtests.py | Running with serviceworker_e10s: True
[task 2021-01-24T20:44:52.067Z] 20:44:52     INFO - runtests.py | Running with socketprocess_e10s: False
[task 2021-01-24T20:44:52.067Z] 20:44:52     INFO - runtests.py | Running tests: start.
[task 2021-01-24T20:44:52.067Z] 20:44:52     INFO - 
[task 2021-01-24T20:44:52.082Z] 20:44:52     INFO - Application command: /builds/worker/workspace/build/application/firefox/firefox -marionette -foreground -profile /tmp/tmpmWKkFa.mozrunner
[task 2021-01-24T20:44:52.086Z] 20:44:52     INFO - runtests.py | Application pid: 2241
[task 2021-01-24T20:44:52.087Z] 20:44:52     INFO - TEST-INFO | started process GECKO(2241)```