Hi all,
i have a user who cannot log in anymore with thunderbird. The problem arose after my updating to ubuntu 26.04. It is only that one user with his three accounts who has the problem. If i read the log right, he uses the correct credentials and could log in, if there wasn't a read problem with /proc/self/io and ad Process destroy. Here are the relevant data:
root@bywater ~ # lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 26.04.1 LTS Release: 26.04 Codename: resolute root@bywater ~ # dovecot --version 2.4.2 (0962ed2104)
/var/log/dovecot/dovecot.debug: 2026-09-06T08:51:08.583060+02:00 bywater dovecot: auth(user@sglasker.de,2a00:fbc:ec47:a4b1:c484:16a7:366c:c4a8,sasl:plain)<G6 Ad7cpaOMIqAA+87EekscSEFqc2bMSo>: Debug: sasl(plain): Set authid 'user@sglasker.de' 2026-09-06T08:51:08.583084+02:00 bywater dovecot: auth(user@sglasker.de,2a00:fbc:ec47:a4b1:c484:16a7:366c:c4a8,sasl:plain)<G6 Ad7cpaOMIqAA+87EekscSEFqc2bMSo>: Debug: sasl(plain): Performing plain passdb verification 2026-09-06T08:51:08.583108+02:00 bywater dovecot: auth(user@sglasker.de,2a00:fbc:ec47:a4b1:c484:16a7:366c:c4a8,sasl:plain)<G6 Ad7cpaOMIqAA+87EekscSEFqc2bMSo>: Debug: sql: Performing passdb lookup 2026-09-06T08:51:08.583178+02:00 bywater dovecot: auth-worker(user@sglasker.de,2a00:fbc:ec47:a4b1:c484:16a7:366c:c4a8)<339340><G6Ad7cpaOMIqAA+87EekscSEFqc2bMSo>: request [11]: Debug: sql: Performing passdb lookup 2026-09-06T08:51:08.583210+02:00 bywater dovecot: auth-worker(user@sglasker.de,2a00:fbc:ec47:a4b1:c484:16a7:366c:c4a8)<339340><G6Ad7cpaOMIqAA+87EekscSEFqc2bMSo>: request [11]: Debug: sql: query: SELECT email AS user, password FROM user WHERE email = 'user@sglasker.de' 2026-09-06T08:51:08.583374+02:00 bywater dovecot: auth-worker: Debug: mysql(127.0.0.1): Finished query 'SELECT email AS user, password FROM user WHERE email = 'user@sglasker.de'' in 0 msecs 2026-09-06T08:51:08.585565+02:00 bywater dovecot: auth-worker(user@sglasker.de,2a00:fbc:ec47:a4b1:c484:16a7:366c:c4a8)<339340><G6Ad7cpaOMIqAA+87EekscSEFqc2bMSo>: request [11]: Debug: sql: Finished passdb lookup 2026-09-06T08:51:08.585652+02:00 bywater dovecot: auth(user@sglasker.de,2a00:fbc:ec47:a4b1:c484:16a7:366c:c4a8,sasl:plain)<G6Ad7cpaOMIqAA+87EekscSEFqc2bMSo>: Debug: sql: Finished passdb lookup 2026-09-06T08:51:08.585677+02:00 bywater dovecot: auth(user@sglasker.de,2a00:fbc:ec47:a4b1:c484:16a7:366c:c4a8,sasl:plain)<G6Ad7cpaOMIqAA+87EekscSEFqc2bMSo>: Debug: sasl(plain): Finished plain passdb verification (status=ok) 2026-09-06T08:51:08.585704+02:00 bywater dovecot: auth(user@sglasker.de,2a00:fbc:ec47:a4b1:c484:16a7:366c:c4a8,sasl:plain)<G6Ad7cpaOMIqAA+87EekscSEFqc2bMSo>: Debug: sasl(plain): Interaction succeeded 2026-09-06T08:51:08.585738+02:00 bywater dovecot: auth(user@sglasker.de,2a00:fbc:ec47:a4b1:c484:16a7:366c:c4a8,sasl:plain)<G6Ad7cpaOMIqAA+87EekscSEFqc2bMSo>: Debug: Auth request finished 2026-09-06T08:51:08.585769+02:00 bywater dovecot: auth: Debug: conn unix:login (pid=339464,uid=111) [501]: client passdb out: OK#0111#011user=user@sglasker.de 2026-09-06T08:51:08.591149+02:00 bywater dovecot: auth(user@sglasker.de,2a00:fbc:ec47:a4b1:c484:16a7:366c:c4a8,sasl:plain)<G6Ad7cpaOMIqAA+87EekscSEFqc2bMSo>: Debug: static: Performing userdb lookup 2026-09-06T08:51:08.591186+02:00 bywater dovecot: auth(user@sglasker.de,2a00:fbc:ec47:a4b1:c484:16a7:366c:c4a8,sasl:plain)<G6Ad7cpaOMIqAA+87EekscSEFqc2bMSo>: Debug: static: Finished userdb lookup 2026-09-06T08:51:08.591209+02:00 bywater dovecot: auth: Debug: master userdb out: USER#011622723073#011user@sglasker.de#011uid=5000#011gid=5000#011home=/var/mail/vhosts/sglasker.de/user#011auth_mech=PLAIN#011auth_token=581264423b972f752ffa367319e23d10630ec484#011local_name=IMAP.qno.de 2026-09-06T08:51:08.591236+02:00 bywater dovecot: auth(user@sglasker.de,2a00:fbc:ec47:a4b1:c484:16a7:366c:c4a8)<G6Ad7cpaOMIqAA+87EekscSEFqc2bMSo>: Debug: sasl(plain): Request destroy 2026-09-06T08:51:08.591513+02:00 bywater dovecot: imap(user@sglasker.de)<339465><G6Ad7cpaOMIqAA+87EekscSEFqc2bMSo>: Debug: Effective uid=5000, gid=5000, home=/var/mail/vhosts/sglasker.de/user 2026-09-06T08:51:08.591603+02:00 bywater dovecot: imap(user@sglasker.de)<339465><G6Ad7cpaOMIqAA+87EekscSEFqc2bMSo>: Debug: open(/proc/self/io) failed: Permission denied (euid=5000(vmail) egid=5000(vmail) missing +r perm: /proc/self/io) 2026-09-06T08:51:08.591811+02:00 bywater dovecot: imap(user@sglasker.de)<339465><G6Ad7cpaOMIqAA+87EekscSEFqc2bMSo>: Debug: Namespace inbox: type=private, prefix=, sep=, inbox=yes, hidden=no, list=yes, subscriptions=yes 2026-09-06T08:51:08.591868+02:00 bywater dovecot: imap(user@sglasker.de)<339465><G6Ad7cpaOMIqAA+87EekscSEFqc2bMSo>: Debug: maildir++: root=/var/mail/vhosts/sglasker.de/user/Maildir, index=, indexpvt=, control=, inbox=/var/mail/vhosts/sglasker.de/user/Maildir, alt= 2026-09-06T08:51:08.981986+02:00 bywater dovecot: imap(user@sglasker.de)<339465><G6Ad7cpaOMIqAA+87EekscSEFqc2bMSo>: Debug: Mailbox INBOX: Mailbox opened
Any hints?
TIA QNo