The browser is stuck in multi-column layout, which keeps creating columns. It can be easily seen when loading the testcase in my local debug build with multi-column log enabled: ``` MOZ_LOG="ColumnSet:5" ./mach run --layoutdebug https://bugzilla.mozilla.org/attachment.cgi?id=9433472 ``` The testcase produces a lot of log prints, and I see the following: ``` D/ColumnSet ReflowColumns: Reflowed child #4165 ... D/ColumnSet ReflowColumns: Reflowed child #4166 ... D/ColumnSet ReflowColumns: Reflowed child #4166 ... ``` This means the browser has created at least 4166 columns. It is a signal that it will likely never end.
Bug 1927270 Comment 3 Edit History
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The browser is stuck in multi-column layout, which keeps creating columns. It can be easily seen when loading the testcase in my local debug build with multi-column log enabled: ``` MOZ_LOG="ColumnSet:5" ./mach run --layoutdebug https://bugzilla.mozilla.org/attachment.cgi?id=9433472 ``` The testcase produces a lot of log prints, and I see the following within a few seconds: ``` D/ColumnSet ReflowColumns: Reflowed child #4165 ... D/ColumnSet ReflowColumns: Reflowed child #4166 ... D/ColumnSet ReflowColumns: Reflowed child #4166 ... ``` This means the browser has created at least 4166 columns. It is a signal that it will likely never end.