Firefox crashes when performing large quick search

[fermulator]

Steps to reproduce issue:

1. Using Firefox…
2. Open a trac website.
3. Provided we have a ticket (semi-large) with several comments (20+).
4. Copy into the clipboard a sentence (15+ words) from a comment in said ticket.
5. In the quick search of trac, paste that large sentence and perform the search. … the results will be displayed … probably only the ONE result of that ticket since the sentence would probably be unique.
6. Click on the link to the ticket.

…

trac will cause firefox to use A LOT of CPU, and the ticket could take upwards of 2+ minutes to load. Yikes!

Sometimes even firefox will crash entirely …

We suspect this has to do with syntax highlighting javascript from trac itself.

Comparison:

1. Do a quicksearch for the TICKET NUMBER (i.e. #999)
2. trac will automatically load the ticket, and it will be fast!

In the comparison case the only difference I can see is that there wouldn't be syntax highlighting … ?

[Alec Thomas]

Limit number of highlighted words on search

[Alec Thomas]

Give this patch a try.

[anonymous]

What version of Firefox? I can't reproduce this in 2.0.0.14.

[Remy Blank]

I can reproduce this issue in Firefox 2.0.0.17, for example using #31 and following the procedure provided in the ticket description. The browser never crashes, but I get the message box about "a script taking too long" several times before the page displays.

Limiting the number of highlights sounds like a good idea.

[Remy Blank]

Fixed in [7695] by limiting highlighting to 10 terms, but also requiring terms to be at least 3 characters.

[anonymous]

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