doveadm backup abort in imapc-client.c

[Admin]

"Reliably" means what exactly?
 - At progress of 66%?
 - after e.g. 9611 Mails?
 - whenever a specific Mail is touched? 

Von unterwegs gesendet

> Am 27.09.2018 um 20:52 schrieb Evan Klitzke <evan at eklitzke.org>:
> 
> I am using Dovecot 2.2.36 and I am trying to use doveadm backup to migrate email from Gmail to Dovecot. When I run doveadm backup, it goes for a while and then eventually hits an assertion error (I've tried this a few times now and it happens reliably).
> 
> The assertion failure looks like this:
> 
> dsync(evan at eklitzke.org): Panic: file imapc-client.c: line 179 (imapc_client_run_pre): assertion failed: (client->ioloop == NULL)
> 
> The last few lines of log output before the crash look like this: https://gist.github.com/eklitzke/9a0dd77c44a6ee33e812f85d5773c24c
> 
> The GDB backtrace when the program panics looks like this: https://gist.github.com/eklitzke/6b311474b08b546c462e0444c5cf479b
> 
> The output of "dovecot --version" prints "2.2.36 (1f10bfa63)" and I'm using the version provided by Fedora's dovecot-2.2.36-1.fc28.src.rpm package.
> 
> Is there any other information I can provide to assist in debugging? I could provide a core dump provided there was a way to scrub my IMAP credentials.
> 
> --
> Evan Klitzke                      pgp: 0x157EFCACBC648422
> e: evan at eklitzke.org              w: https://eklitzke.org