I've been struggling with a number of hangs, dynamic timeouts, and outright crashes when using the search/documentation center in version 9. I've tried uninstalling/reinstalling and clearing preferences/cache on start-up, praying for a paclet update---but nothing seems to help.
One easily reproducible crash involves searching via the F1 key. On my machine (Windows 7, 64-bit), following the steps below, fails 100% of the time. (This is the simplest example I've taken the time to document; there seem to be many others.)
- With a fresh session (not always reproducible with just a fresh kernel), type something in the front-end. This could be text (in a text cell) or input (in an input cell) such as:
something(and leave it unevaluated---if in an input cell)
- Now highlight that input and hit "F1" to perform a search. This will either return a dynamic timeout warning, or momentarily freeze the front-end and do nothing.
- Now use your cursor to select
somethingagain and try "F1" a second time. This will perform the search as desired.
Can anyone reproduce this issue?
Upgrading to 9.0.1 only partially addresses the issue. To illustrate, start a fresh session/kernel, type
something and then hit F1 (without manually highlighting
something). A similar hangup will occur.
As Albert points out in his answer, this hangup does not seem to occur with F1 searches on built-in symbols, highlighted or not.
Finally, FWIW, I suspect Albert's observation relates to another way I've encountered errors. Quite often when I come across some unfamiliar mathematical terminology on stackexchange, I reflexively copy and paste the term---from my browser, to the search field of the documentation center (which is almost always open when I'm working). Frequently this will generate the same type of error or worse. I suspect it has to do with whether or not the search term is either a built-in symbol or already indexed somehow.