1337643 - stylo: Talos g1 (non-e10s) test intermittent timeout

Status: RESOLVED WORKSFORME

(Core :: CSS Parsing and Computation, defect, P4)

Description

[Shing Lyu [:shinglyu]]

Talos g1 test (tp5 scrolling) on stylo fails, but always fail at different place. So I suspect it's because it runs too slow and timeout intermittently.

Here are some observations:

* It only fails on non-e10s-g1, e10s-g1 always passes.
* The error message is :

21:39:01     INFO -  TEST-UNEXPECTED-ERROR | tp5o_scroll | Could not find report in browser output: [('tsformat', ('__start_report', '__end_report')), ('tpformat', ('__start_tp_report', '__end_tp_report'))]

* This can happen on any test case, sometimes it happends on the 10th test case, sometimes it stops at the first one.
* Running those test case manually does not result in a crash.
* The test case can be loaded successfully for a few time before failing.
* Firefox crashed for different reasons in different runs:
  * MOZCRASH: `Hit MOZ_CRASH(Aborting on channel error.) at /home/shinglyu/workspace/stylo/stylo-incubator/ipc/glue/MessageChannel.cpp:2178`
  * Network Error: `10:52:07    ERROR -  PROCESS | 14133 | Full message: TypeError: NetworkError when attempting to fetch resourc`

Here is a try run: https://treeherder.mozilla.org/#/jobs?repo=try&revision=9e07d71e29d7f67b7a16be4c1082a5c52725eac9

Comment 1

[Shing Lyu [:shinglyu]]

The latest build passed successfully, let's keep monitoring:

https://treeherder.mozilla.org/#/jobs?repo=try&revision=6c7d834929a76ff701671a9d0474290d188f1132

Comment 2

[Chris Peterson [:cpeterson]]

Shing: is Talos g1 still passing reliably? Can we close this bug?

Comment 3

[Shing Lyu [:shinglyu]]

g1 looks good now: https://treeherder.mozilla.org/#/jobs?repo=mozilla-central&filter-searchStr=g1%20%20stylo 

Let's close it.

Comment 4

[Chris Peterson [:cpeterson]]

status-firefox57=wontfix unless someone thinks this bug should block 57

Comment 5

[Cameron McCormack (:heycam)]

WORKSFORME per comment 3.