Safari seems to be crashing a lot, and has been since yesterday (I keep fairly up to date with SVN trunk, so it was certainly since yesterday 22+01).
Attached are various crash logs, all ultimately crashing at the same thing (thus I'm posting this as a single bug).
Created attachment 21401 [details]
Created attachment 21402 [details]
Created attachment 21403 [details]
Oh, and I probably ought to note that this doesn't seem to happen on any specific URL. I've had it happen while I've been away from the computer with multiple tabs open, and I always have too many pages open at once to safely give one URL.
*** This bug has been marked as a duplicate of 19285 ***