[Webkit-unassigned] [Bug 271716] Port.default_child_processes is totally ignored for second-and-later device_types, even when zero

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=271716

Sam Sneddon [:gsnedders] <gsnedders at apple.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|Second-and-later            |Port.default_child_processe
                   |device_types are never      |s is totally ignored for
                   |skipped                     |second-and-later
                   |                            |device_types, even when
                   |                            |zero

--- Comment #1 from Sam Sneddon [:gsnedders] <gsnedders at apple.com> ---
I guess this only actually has broken anything when Port.default_child_processes() is zero and Port.max_child_processes() is not, which I think never actually happens for any existing Port.

Regardless, it adds very much a confusing edge-case in our code flow, and the comment is misleading: it has no impact on retries (we already hardcoded num_workers=1 in _run_test_subset).

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