Hi,
after updating Dovecot to version 2.3 I get a lot of core-dumps like:
Jan 18 10:08:20 mail dovecot: imap(b...@tutech.de)<18200>: Panic: file ostream-zlib.c: line 36 (o_stream_zlib_close): assertion failed: (zstream->ostream.finished ||
zstream->ostream.ostream.stream_errno != 0)
Jan 18 10:08:20 mail dovecot: imap(b...@tutech.de)<18200>:
Error: Raw backtrace: /usr/lib64/dovecot/libdovecot.so.0(+0xc71da) [0x7f9b510c81da] ->
/usr/lib64/dovecot
/libdovecot.so.0(+0xc7766) [0x7f9b510c8766] -> /usr/lib64/dovecot/libdovecot.so.0(+0x3be11) [0x7f9b5103ce11] -> /usr/lib64/dovecot/lib20_zlib_plugin.so(+0x4ffb) [0x7f9b4fc21ffb] ->
/usr/lib64/dovecot/libdovecot.so.0(+0xed3a6) [0x7f9b510ee3a6] -> dovecot/imap(client_disconnect+0x4f) [0x7f9b518f3a1f] -> dovecot/imap(cmd_logout+0x5b) [0x7f9b518ede5b] ->
dovecot/imap(command_exec+0x65) [0x7f9b518f7585] -> dovecot/imap(+0x1a7b0) [0x7f9b518f47b0] -> dovecot/imap(+0x1a848) [0x7f9b518f4848] -> dovecot/imap(client_handle_input+0x1d5)
[0x7f9b518f4c35] -> dovecot/imap(client_input+0x6e) [0x7f9b518f517e] -> /usr/lib64/dovecot/libdovecot.so.0(io_loop_call_io+0x55) [0x7f9b510deec5] -> /usr/lib64/dovecot
/libdovecot.so.0(io_loop_handler_run_internal+0xbf) [0x7f9b510e0dcf] ->
/usr/lib64/dovecot/libdovecot.so.0(io_loop_handler_run+0x55) [0x7f9b510defb5] ->
/usr/lib64/dovecot
/libdovecot.so.0(io_loop_run+0x38) [0x7f9b510df1d8] -> /usr/lib64/dovecot/libdovecot.so.0(master_service_run+0x13) [0x7f9b5105eab3] -> dovecot/imap(main+0x33e) [0x7f9b51903cee] ->
/lib64/libc.so.6(__libc_start_main+0xfd) [0x7f9b50c8bd1d] -> dovecot/imap(+0xe339) [0x7f9b518e8339]
Jan 18 10:08:20 mail dovecot: imap(b...@tutech.de)<18200>:
Fatal: master: service(imap): child 18200 killed with signal 6 (core dumped)
The gdb backtrace is:
gdb /usr/libexec/dovecot/imap /var/core/18200
GNU gdb (GDB) Red Hat Enterprise Linux (7.2-92.el6)
Copyright (C) 2010 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law. Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-redhat-linux-gnu".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols from /usr/libexec/dovecot/imap...done.
[New Thread 18200]
Reading symbols from /usr/lib64/dovecot/libdovecot-storage.so.0...done.
Loaded symbols for /usr/lib64/dovecot/libdovecot-storage.so.0
Reading symbols from /usr/lib64/dovecot/libdovecot.so.0...done.
Loaded symbols for /usr/lib64/dovecot/libdovecot.so.0
Reading symbols from /lib64/libc.so.6...(no debugging symbols found)...done.
Loaded symbols for /lib64/libc.so.6
Reading symbols from /lib64/librt.so.1...(no debugging symbols found)...done.
Loaded symbols for /lib64/librt.so.1
Reading symbols from /lib64/libdl.so.2...(no debugging symbols found)...done.
Loaded symbols for /lib64/libdl.so.2
Reading symbols from /lib64/ld-linux-x86-64.so.2...(no debugging symbols
found)...done.
Loaded symbols for /lib64/ld-linux-x86-64.so.2
Reading symbols from /lib64/libpthread.so.0...(no debugging symbols
found)...done.
[Thread debugging using libthread_db enabled]
Loaded symbols for /lib64/libpthread.so.0
Reading symbols from /usr/lib64/dovecot/lib01_acl_plugin.so...done.
Loaded symbols for /usr/lib64/dovecot/lib01_acl_plugin.so
Reading symbols from /usr/lib64/dovecot/lib02_imap_acl_plugin.so...done.
Loaded symbols for /usr/lib64/dovecot/lib02_imap_acl_plugin.so
Reading symbols from /usr/lib64/dovecot/lib15_notify_plugin.so...done.
Loaded symbols for /usr/lib64/dovecot/lib15_notify_plugin.so
Reading symbols from /usr/lib64/dovecot/lib20_mail_log_plugin.so...done.
Loaded symbols for /usr/lib64/dovecot/lib20_mail_log_plugin.so
Reading symbols from /usr/lib64/dovecot/lib20_zlib_plugin.so...done.
Loaded symbols for /usr/lib64/dovecot/lib20_zlib_plugin.so
Reading symbols from /lib64/libz.so.1...(no debugging symbols found)...done.
Loaded symbols for /lib64/libz.so.1
Reading symbols from /lib64/libbz2.so.1...(no debugging symbols found)...done.
Loaded symbols for /lib64/libbz2.so.1
Reading symbols from /usr/lib64/dovecot/lib30_imap_zlib_plugin.so...done.
Loaded symbols for /usr/lib64/dovecot/lib30_imap_zlib_plugin.so
Reading symbols from /lib64/libgcc_s.so.1...(no debugging symbols found)...done.
Loaded symbols for /lib64/libgcc_s.so.1
Core was generated by `dovecot/imap'.
Program terminated with signal 6, Aborted.
#0 0x7f9b50c9f495 in raise () from /lib64/libc.so.6
Missing separate debuginfos, use: debuginfo-install
dovecot23-2.3.0-3.gf.el6.x86_64
My Dovecot configuration is:
---snip---
# 2.3.0 (c8b89eb): /etc/dovecot/dovecot.conf
# Pigeonhole version 0.5.0.1 (d33dca20)
# OS: Linux 2.6.32-696.3.1.el6.x86_64 x86_64 CentOS release 6.9 (Final)