Panic file istream-seekable.c

[Aki Tuomi]

Can you send a core dump? Instructions can be found from https://www.dovecot.org/bugreport-mail

Aki

> On 04/01/2021 17:06 Eric Mauger <eric.mauger at igf.cnrs.fr> wrote:
> 
> 
> Hi,
>  
>  I still have the same problem/message. I've got no answer from my previous mail.
>  
>  It happens generally when the list server send multiple messages in a small amount of time.
>  130 mails failed, 200 ok.
>  
>  Should it be a config problem, an OS problem or anything else ?
>  It runs on Debian buster.
>  
>  I run the latest version (from dovecot repo)
>  I upgraded this morning to 2.3.13 and the problem is still there :
>  
>  Jan 4 15:57:18 mx.igf.cnrs.fr dovecot: lda(sophie.nicole)<13773><i9OENcws81/NNQAAmSH/vg>: Error: i_stream_seekable_write_failed: close((&sstream->fd)) @ istream-seekable.c:251 failed (fd=9): Bad file descriptor
>  Jan 4 15:57:18 mx.igf.cnrs.fr dovecot: lda(sophie.nicole)<13773><i9OENcws81/NNQAAmSH/vg>: Panic: file istream-seekable.c: line 231 (read_from_buffer): assertion failed: (*ret_r > 0)
>  Jan 4 15:57:18 mx.igf.cnrs.fr dovecot: lda(sophie.nicole)<13773><i9OENcws81/NNQAAmSH/vg>: Error: Raw backtrace: /usr/lib/dovecot/libdovecot.so.0(backtrace_append+0x3d) [0x7f679208761d] -> /usr/lib/dovecot/libdovecot.so.0(backtrace_get+0x1e) [0x7f679208773e] -> /usr/lib/dovecot/libdovecot.so.0(+0xfa79b) [0x7f679209379b] -> /usr/lib/dovecot/libdovecot.so.0(+0xfa801) [0x7f6792093801] -> /usr/lib/dovecot/libdovecot.so.0(+0x52e30) [0x7f6791febe30] -> /usr/lib/dovecot/libdovecot.so.0(+0x555af) [0x7f6791fee5af] -> /usr/lib/dovecot/libdovecot.so.0(+0x10cfb1) [0x7f67920a5fb1] -> /usr/lib/dovecot/libdovecot.so.0(+0x10d406) [0x7f67920a6406] -> /usr/lib/dovecot/libdovecot.so.0(i_stream_stat+0x34) [0x7f679209fbc4] -> /usr/lib/dovecot/libdovecot-storage.so.0(+0xb1536) [0x7f679220a536] -> /usr/lib/dovecot/libdovecot-storage.so.0(+0xb1612) [0x7f679220a612] -> /usr/lib/dovecot/libdovecot-storage.so.0(mail_get_physical_size+0x38) [0x7f67921a71c8] -> /usr/lib/dovecot/libdovecot-lda.so.0(+0x4015) [0x7f67922c1015] -> /usr/lib/dovecot/libdovecot-lda.so.0(mail_deliver_init+0x141) [0x7f67922c2111] -> /usr/lib/dovecot/deliver(main+0x879) [0x55d4bf4b5f99] -> /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xeb) [0x7f6791ded09b] -> /usr/lib/dovecot/deliver(_start+0x2a) [0x55d4bf4b66ea]
>  
>  
>  
>  dovecot -n
>  
>  # 2.3.13 (89f716dc2): /etc/dovecot/dovecot.conf
>  # Pigeonhole version 0.5.13 (cdd19fe3)
>  # OS: Linux 4.19.0-9-amd64 x86_64 Debian 10.7 
>  # Hostname: mx.igf.cnrs.fr
>  auth_username_format = 
>  disable_plaintext_auth = no
>  lda_mailbox_autocreate = yes
>  lda_mailbox_autosubscribe = yes
>  mail_location = maildir:~/maildir
>  mail_plugins = fts
>  mail_privileged_group = mail
>  managesieve_notify_capability = mailto
>  managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date index ihave duplicate mime foreverypart extracttext
>  namespace inbox {
>  inbox = yes
>  location = 
>  mailbox Ads {
>  auto = subscribe
>  }
>  mailbox Drafts {
>  special_use = \Drafts
>  }
>  mailbox Junk {
>  special_use = \Junk
>  }
>  mailbox Sent {
>  special_use = \Sent
>  }
>  mailbox "Sent Messages" {
>  special_use = \Sent
>  }
>  mailbox Trash {
>  special_use = \Trash
>  }
>  prefix = 
>  separator = .
>  type = private
>  }
>  passdb {
>  driver = pam
>  }
>  plugin {
>  sieve = file:~/sieve;active=~/.dovecot.sieve
>  sieve_after = /etc/dovecot/sieve.d
>  }
>  protocols = " imap sieve pop3 sieve"
>  service auth {
>  unix_listener /var/spool/postfix/private/auth {
>  group = postfix
>  mode = 0666
>  user = postfix
>  }
>  }
>  service imap-login {
>  process_min_avail = 16
>  service_count = 0
>  }
>  service managesieve-login {
>  inet_listener sieve {
>  port = 4190
>  }
>  }
>  service stats {
>  unix_listener stats-reader {
>  group = dovecot
>  mode = 0666
>  user = root
>  }
>  unix_listener stats-writer {
>  group = dovecot
>  mode = 0666
>  user = root
>  }
>  }
>  ssl_cert = </etc/dovecot/ssl/certs/mx_igf_cnrs_fr_with_CA.crt
>  ssl_dh = # hidden, use -P to show it
>  ssl_key = # hidden, use -P to show it
>  syslog_facility = local2
>  userdb {
>  driver = passwd
>  }
>  verbose_proctitle = yes
>  protocol lda {
>  mail_plugins = fts sieve
>  syslog_facility = local2
>  }
>  
>  
> 
> -- 
> Eric Mauger | Administrateur système et réseau
> IGF UMR5203 | https://www.igf.cnrs.fr