[konsole] [Bug 506880] [ANR] Konsole hangs when searching in > 200 000-line terminal scrollback

[Roke Julian Lockhart Beedell]

https://bugs.kde.org/show_bug.cgi?id=506880

Roke Julian Lockhart Beedell <4wy78uwh at rokejulianlockhart.addy.io> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEEDSINFO                   |RESOLVED
         Resolution|WAITINGFORINFO              |FIXED
            Summary|[ANR] Konsole hangs when    |[ANR] Konsole hangs when
                   |searching in > 200 000-line |searching in > 200 000-line
                   |terminal scrollback.        |terminal scrollback

--- Comment #10 from Roke Julian Lockhart Beedell <4wy78uwh at rokejulianlockhart.addy.io> ---
(In reply to Christoph Cullmann from comment #9)

I've managed to report about 5 new crashes with Konsole, albeit none from the
search functionality.

Specifically, when I have > 5 tabs all following the output of `cat
/dev/random` (despite, genuinely helpfully, Konsole putting the scroll at the
beginning, when one searches, to prevent this), Konsole can hang for < 7 s,
when I search for `.` with RegEx enabled. However, never long enough for the DE
to prompt me (which is what matters), and Konsole always resolves it. I've
tested this at > 1 500 000 lines.

I'd say that Konsole's search functionality may now be the most robust of any
applications' I've ever seen.

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