[Webkit-unassigned] [Bug 238256] EWS queue gets stuck when patch causes tests to hang

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=238256

--- Comment #2 from Angelos Oikonomopoulos <angelos at igalia.com> ---
There's currently a similar issue, though the cause may be different. Specifically, Starting with https://ews-build.webkit.org/#/builders/46/builds/22930, PR https://github.com/WebKit/WebKit/pull/617 (commit https://github.com/WebKit/WebKit/pull/617/commits/b59d0400104cb703d6a6b3fea5eb378d8fd1a76a) is keeps resulting in a RETRY, which causes another RETRY, etc.

Other patches seem to go through the same EWS queue (https://ews-build.webkit.org/#/builders/46) just fine.

Contrary to the reprot in the bug description, in this case the error message we get is:

remoteFailed: [Failure instance: Traceback (failure with no frames): <class 'twisted.internet.error.ConnectionLost'>: Connection to the other side was lost in a non-clean fashion.
]

However, I can't find any errors in the log of the buildbot worker or in the system logs and the memory usage on the host is barely visible in the plot. So I don't currently have an explanation for how the failure actually happens in this case.

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