Panic when runing "doveadm mailbox status ... vsize"

[Michael Kliewe]

Hi Mark,

Am 19.07.2016 um 21:23 schrieb Mark Costlow:
> I have converted some test users and they generally work fine.  But
> when I run "doveadm mailbox status" I get a Panic if I ask for the
> vsize field (or "all"), but other fields work fine. For example:
>
>     # doveadm  mailbox status -u bubbacheex3 "messages" INBOX
>     INBOX messages=53
>
>     # doveadm  mailbox status -u bubbacheex3 "guid" INBOX
>     INBOX guid=bf976912f3748957761d0100f906a3d0
>
>     # doveadm  mailbox status -u bubbacheex3 "unseen" INBOX
>     INBOX unseen=52
>
>     # doveadm  mailbox status -u bubbacheex3 "vsize" INBOX
>     doveadm(bubbacheex3): Panic: file file-lock.c: line 269: unreached
>     Abort trap
>
Have you checked that line 269 in file-lock.c?
https://github.com/dovecot/core/blob/master/src/lib/file-lock.c#L269

Do you have write access to the mail folder of the user?

I'm not sure anymore, maybe a workaround for me was:
-o lock_method=fcntl
Using fcntl instead of dotlock for that command...
Or I made sure to have write access to the mail folder of the user... Or 
both.... I don't remember anymore.

Maybe someone can explain why dotlock is not supported in that code path.

Michael