We made an Events log post earlier today that talked about the crashes a bit:
A quick note about BF3 crashes
Dec 15 2011 12:00:22 PM PT
BF3 servers have always been relatively crash-happy, but since the B2K release, we have seen a significant uptick in crash behavior, to levels several times higher than they were in version R11. Busy servers that crash at least once a day are the norm right now. We have been analyzing the crash logs as much as we can to ensure that these crashes are not on our side (so far, they haven't seemed to be) and to look for commonalities that may allow for workarounds (so far, we haven't determined any). We have also been sending all of that crash information on to DICE, and we have an automated system in place that will continue to send every crash to them.
We sincerely hope that DICE is able to resolve the issues ASAP in a new server release, and we'll make sure to test and roll out any such new release promptly.
DICE staff work between something like 1am and 9am PST, so that's where we still are right now.