Ofcourse yesterday when the new Ubuntu 8.10 came out I couldn't wait to install the new version. I came across a big problem though that evolution was hanging on importing/migrating my old mail. I tried to copy my old .evolution folder and even importing a backup I made.
Evolution segfaulted with the following line in messages
[ 56.897763] evolution: segfault at 0 ip b6a45d07 sp bff95824 error 4 in libglib-2.0.so.0.1800.2[b69e9000+b5000]
It turns out that importing fails on the ev-summary files in ~/.evolution/
The solution is deleting those ev-summary files. They will be regenerated by evolution. Because I have dozens of folders in my evolution I used the following line:
find ~/.evolution -name *ev-summary -print0 | xargs -0 rm
after that evolution works just fine.