On 08 Jun 2016, at 12:23, Peter Eriksson <pe...@ifm.liu.se> wrote: > > I’m seeing core dumps from Dovecot’s imap process (around 1/day currently) > from client_check_command_hangs(). > > Dovecot 2.2.24 > OS: Solaris 10 > CPU: x86 > Filesystem: Local ZFS > > Most crashes are associated with one user (with 25GB of mail in his > mailboxes) but some (two) are also associated with other user with “just” > 10GB mail. > > Please find enclosed various log files/traces. Let me know if there is > something else I might be able to provide that might give more insight into > this.
Could you also print in dbx: print *client->command_queue print *client->command_queue->next print *client->command_queue->next->next print *client->command_queue->next->next->next ..etc until it stops working Looks like there is still some bug with command pipelining.