Finally got to it. The upgrade was not smooth at all; the update script ended quickly enough, but the real upgrade only happened when I opened KMail. I had the same experience as last time -- KMail shows blank folders, nothing seems to be going on, except if you look for it. At some point KMail's little "operation in progress" bar (bottom right progress bar when doing something) lit up with 0%. I tried to click the up-arrow next to it, to see what KMail was doing. After that, looking from another X session, I saw mysqld, akonadiserver and kwin(!) all taking 100% CPU (I have four cores). Pretty soon after that, kwin managed to make the X server completely unresponsive -- not even Ctrl-Alt-Fn to go to another session. This happened twice, so I'm calling it reproducible. Perhaps it should just be reported elsewhere -- I suspect a grave bug in the upgrade.
It seems like the mails themselves made it through the upgrade; I haven't yet verified the filters and identities. The computer that runs Sid serves the whole family, and I had to reboot it to restore it to functional after running the imported user. A little off-topic, w.r.t. a comment Lisandro made earlier -- I understand that not shipping Akonadi is not an option. Would you say the same about KMail2? Thanks, Shai. -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org