Can you send doveconf -n? I think it might be related to the separete user accounts somehow.

Aki

On 18/01/2024 09:45 EET Lucas Rolff lucas@lucasrolff.com wrote:

SELinux runs in permissive mode on the system (so doesn't take action, and no violations are logged either), the OS specifically is Oracle Linux 8.9, the only main thing that differs from RHEL or eg rocky/almalinux is I use the newer oracle kernel they release, but shouldn't have any effect

The only "special" thing being that mail users are isolated on their own Linux user (a domain will result in a local Linux user being created), but that's about it. There's nothing with eg virtualized file systems or anything like that, that would result in per user mount points as well

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From: Aki Tuomi aki.tuomi@open-xchange.com Sent: Thursday, January 18, 2024 8:37:07 AM To: Lucas Rolff lucas@lucasrolff.com; dovecot@dovecot.org dovecot@dovecot.org Subject: Re: Dovecot imap-hibernate errors in 2.3.21 Did you check if maybe selinux is interfering here? I tested the 2.3.21-CE in a RHEL7 VM and hibernation seems to work there.

Aki

...

On 17/01/2024 22:51 EET lucas@lucasrolff.com wrote:

Thanks for your reply Aki!

It doesn't seem to contain much more information sadly that points towards anything related to hibernate itself. "Debug: open(/proc/self/io) failed: Permission denied" being the main "thing" that seems a bit odd, but that also happens under 2.3.20 as well by the looks of it:

Jan 17 20:42:16 de-mail01 dovecot[3631433]: imap-login: Login: user=<customer@example.com>, method=PLAIN, rip=193.36.xx.xx, lip=176.9.151.xxx, mpid=3631534, TLS, session=<JVYMV8gOq5vBJIOe>
Jan 17 20:42:16 de-mail01 dovecot[3631433]: imap(customer@example.com)<3631534><JVYMV8gOq5vBJIOe>: Debug: Loading modules from directory: /usr/lib64/dovecot
Jan 17 20:42:16 de-mail01 dovecot[3631433]: imap(customer@example.com)<3631534><JVYMV8gOq5vBJIOe>: Debug: Module loaded: /usr/lib64/dovecot/lib10_quota_plugin.so
Jan 17 20:42:16 de-mail01 dovecot[3631433]: imap(customer@example.com)<3631534><JVYMV8gOq5vBJIOe>: Debug: Module loaded: /usr/lib64/dovecot/lib11_imap_quota_plugin.so
Jan 17 20:42:16 de-mail01 dovecot[3631433]: imap(customer@example.com)<3631534><JVYMV8gOq5vBJIOe>: Debug: Module loaded: /usr/lib64/dovecot/lib20_fts_plugin.so
Jan 17 20:42:16 de-mail01 dovecot[3631433]: imap(customer@example.com)<3631534><JVYMV8gOq5vBJIOe>: Debug: Module loaded: /usr/lib64/dovecot/lib20_quota_clone_plugin.so
Jan 17 20:42:16 de-mail01 dovecot[3631433]: imap(customer@example.com)<3631534><JVYMV8gOq5vBJIOe>: Debug: Module loaded: /usr/lib64/dovecot/lib20_zlib_plugin.so
Jan 17 20:42:16 de-mail01 dovecot[3631433]: imap(customer@example.com)<3631534><JVYMV8gOq5vBJIOe>: Debug: Module loaded: /usr/lib64/dovecot/lib21_fts_solr_plugin.so
Jan 17 20:42:16 de-mail01 dovecot[3631433]: imap(customer@example.com)<3631534><JVYMV8gOq5vBJIOe>: Debug: Added userdb setting: mail=mdbox:~/mail/example.com/customer/
Jan 17 20:42:16 de-mail01 dovecot[3631433]: imap(customer@example.com)<3631534><JVYMV8gOq5vBJIOe>: Debug: Added userdb setting: plugin/quota_rule=*:bytes=10240M
Jan 17 20:42:16 de-mail01 dovecot[3631433]: imap(customer@example.com)<3631534><JVYMV8gOq5vBJIOe>: Debug: Effective uid=1098, gid=1098, home=/home/username/
Jan 17 20:42:16 de-mail01 dovecot[3631433]: imap(customer@example.com)<3631534><JVYMV8gOq5vBJIOe>: Debug: Quota root: name=User quota backend=count args=
Jan 17 20:42:16 de-mail01 dovecot[3631433]: imap(customer@example.com)<3631534><JVYMV8gOq5vBJIOe>: Debug: Quota rule: root=User quota mailbox=* bytes=10737418240 messages=0
Jan 17 20:42:16 de-mail01 dovecot[3631433]: imap(customer@example.com)<3631534><JVYMV8gOq5vBJIOe>: Debug: Quota grace: root=User quota bytes=1073741824 (10%)
Jan 17 20:42:16 de-mail01 dovecot[3631433]: imap(customer@example.com)<3631534><JVYMV8gOq5vBJIOe>: Debug: dict(proxy): dict created (uri=proxy::sqlquota, base_dir=/run/dovecot)
Jan 17 20:42:16 de-mail01 dovecot[3631433]: imap(customer@example.com)<3631534><JVYMV8gOq5vBJIOe>: Debug: open(/proc/self/io) failed: Permission denied
Jan 17 20:42:16 de-mail01 dovecot[3631433]: imap(customer@example.com)<3631534><JVYMV8gOq5vBJIOe>: Debug: Namespace inbox: type=private, prefix=, sep=, inbox=yes, hidden=no, list=yes, subscriptions=yes location=mdbox:~/mail/example.com/customer/
Jan 17 20:42:16 de-mail01 dovecot[3631433]: imap(customer@example.com)<3631534><JVYMV8gOq5vBJIOe>: Debug: fs: root=/home/username//mail/example.com/customer, index=, indexpvt=, control=, inbox=, alt=
Jan 17 20:42:16 de-mail01 dovecot[3631433]: imap(customer@example.com)<3631534><JVYMV8gOq5vBJIOe>: Debug: quota: quota_over_flag check: quota_over_script unset - skipping
Jan 17 20:42:17 de-mail01 dovecot[3631433]: imap(customer@example.com)<3631534><JVYMV8gOq5vBJIOe>: Debug: Mailbox INBOX: Mailbox opened
Jan 17 20:42:17 de-mail01 dovecot[3631433]: imap(customer@example.com)<3631534><JVYMV8gOq5vBJIOe>: Debug: Mailbox INBOX: Mailbox opened
Jan 17 20:42:49 de-mail01 dovecot[3631433]: imap-hibernate: Error: conn unix:imap-hibernate (pid=3631534,uid=1098): IMAP client fd not received
Jan 17 20:42:49 de-mail01 dovecot[3631433]: imap(customer@example.com)<3631534><JVYMV8gOq5vBJIOe>: Error: Couldn't hibernate imap client: /run/dovecot/imap-hibernate disconnected
Jan 17 20:43:16 de-mail01 dovecot[3631433]: imap(customer@example.com)<3631534><JVYMV8gOq5vBJIOe>: Debug: Mailbox INBOX: Mailbox opened
Jan 17 20:43:49 de-mail01 dovecot[3631433]: imap-hibernate: Error: conn unix:imap-hibernate (pid=3631534,uid=1098): IMAP client fd not received
Jan 17 20:43:49 de-mail01 dovecot[3631433]: imap(customer@example.com)<3631534><JVYMV8gOq5vBJIOe>: Error: Couldn't hibernate imap client: /run/dovecot/imap-hibernate disconnected
Jan 17 20:44:16 de-mail01 dovecot[3631433]: imap(customer@example.com)<3631534><JVYMV8gOq5vBJIOe>: Debug: Mailbox INBOX: Mailbox opened
Jan 17 20:44:49 de-mail01 dovecot[3631433]: imap-hibernate: Error: conn unix:imap-hibernate (pid=3631534,uid=1098): IMAP client fd not received
Jan 17 20:44:49 de-mail01 dovecot[3631433]: imap(customer@example.com)<3631534><JVYMV8gOq5vBJIOe>: Error: Couldn't hibernate imap client: /run/dovecot/imap-hibernate disconnected
Jan 17 20:45:16 de-mail01 dovecot[3631433]: imap(customer@example.com)<3631534><JVYMV8gOq5vBJIOe>: Debug: Mailbox INBOX: Mailbox opened
Jan 17 20:45:49 de-mail01 dovecot[3631433]: imap-hibernate: Error: conn unix:imap-hibernate (pid=3631534,uid=1098): IMAP client fd not received
Jan 17 20:45:49 de-mail01 dovecot[3631433]: imap(customer@example.com)<3631534><JVYMV8gOq5vBJIOe>: Error: Couldn't hibernate imap client: /run/dovecot/imap-hibernate disconnected
Jan 17 20:46:16 de-mail01 dovecot[3631433]: imap(customer@example.com)<3631534><JVYMV8gOq5vBJIOe>: Debug: Mailbox INBOX: Mailbox opened
Jan 17 20:46:49 de-mail01 dovecot[3631433]: imap-hibernate: Error: conn unix:imap-hibernate (pid=3631534,uid=1098): IMAP client fd not received
Jan 17 20:46:49 de-mail01 dovecot[3631433]: imap(customer@example.com)<3631534><JVYMV8gOq5vBJIOe>: Error: Couldn't hibernate imap client: /run/dovecot/imap-hibernate disconnected

Best Regards, Lucas Rolff

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