dm-list-email-notmuch@scs.stanford.edu writes:

> I just installed the ttf-symbola package from AUR and ran fc-cache (not
> sure if necessary).  Now the problem is completely gone.  Not only that,
> but I even get the little memo symbol instead of a box with the hex code
> point number.
>
> Thank you so much!  This was driving me nuts for months.

Sadly, I spoke too soon.  This does fix the particular problem that I
posted, and makes the situation better, but I'm still getting occasional
lockups, presumably because symbola does not cover every possible
symbol.  For example, I had another email containing U+8BDD (CJK UNIFIED
IDEOGRAPH-8BDD), and this one still caused my emacs to spin for many
minutes, before displaying a box with 8BDD in it.

So unfortunately the problem seems to be that any character not
supported by an installed font takes about 2-5 minutes of CPU time to
resolve.  And of course most characters that I'd use are in installed
fonts, except that I can control what's in the emails I receive, so this
makes notmuch very painful to use.  But if no one else is running into
the problems, then I may be able to get around it by installing whatever
fonts other people have installed.

Thanks,
David
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