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Crash in Windows Terminal TerminalControl!TextBuffer::Reflow #6855

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opened 2026-01-31 00:48:59 +00:00 by claunia · 0 comments
claunia commented 2026-01-31 00:48:59 +00:00
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Originally created by @Treit on GitHub (Mar 13, 2020).

Originally assigned to: @DHowett on GitHub.

While running a stress test on Windows Terminal version 0.10.721.0, I was able to cause a crash in TerminalControl!TextBuffer::Reflow.

I was running https://github.com/Treit/TerminalStress, the application I wrote some time back to reproduce a different bug (that was since fixed.)

I was running something like 5 instances in parallel in different panes on the same tab, then rapidly pressing Alt+Enter to switch from full screen to normal and back.

WindowsTerminal11.txt

I have attached some additional output from the debugger that might be helpful.

Originally created by @Treit on GitHub (Mar 13, 2020). Originally assigned to: @DHowett on GitHub. While running a stress test on Windows Terminal version 0.10.721.0, I was able to cause a crash in TerminalControl!TextBuffer::Reflow. I was running https://github.com/Treit/TerminalStress, the application I wrote some time back to reproduce a different bug (that was since fixed.) I was running something like 5 instances in parallel in different panes on the same tab, then rapidly pressing Alt+Enter to switch from full screen to normal and back. [WindowsTerminal11.txt](https://github.com/microsoft/terminal/files/4331632/WindowsTerminal11.txt) I have attached some additional output from the debugger that might be helpful.
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Reference: starred/terminal#6855
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