Core Dumps with dovecot-2.2 -git as of 2.2.devel (eaf276b33)

[Reuben Farrelly]

Hi,

Just to confirm this is still a major problem for me with the 2.2.33.1 
release (did not exist in previous releases).

Reuben


On 8/10/2017 6:30 AM, Aki Tuomi wrote:
> Thanks! We'll look into it.
>
>
>
> ---
> Aki Tuomi
> Dovecot oy
>
> -------- Original message --------
> From: Reuben Farrelly <reuben-dovecot at reub.net>
> Date: 07/10/2017 13:08 (GMT+02:00)
> To: dovecot at dovecot.org
> Subject: Core Dumps with dovecot-2.2 -git as of 2.2.devel (eaf276b33)
>
> This appears to be breaking dsync at the moment and is caused by
> something committed in the last week or so.  This is with the current
> -git of dovecot-2.2 (eaf276b33).
>
> The crash happens all the time - the logs are full of this message.
>
> Oct  7 20:31:24 thunderstorm.reub.net dovecot: doveadm: Warning: I/O
> leak: 0x7f8bb6581b4c (ostream-file.c:350, fd 14)
> Oct  7 20:31:24 thunderstorm.reub.net dovecot: doveadm: Panic: file
> ioloop.c: line 126 (io_remove_full): assertion failed: (io->callback !=
> NULL)
> Oct  7 20:31:24 thunderstorm.reub.net dovecot: doveadm: Error: Raw
> backtrace: /usr/lib64/dovecot/libdovecot.so.0(+0xd48a6) [0x7f8bb654a8a6]
> -> /usr/lib64/dovecot/li
> bdovecot.so.0(+0xd5e26) [0x7f8bb654be26] ->
> /usr/lib64/dovecot/libdovecot.so.0(i_fatal+0) [0x7f8bb654ac39] ->
> /usr/lib64/dovecot/libdovecot.so.0(+0xf5cb0) [0x7f8bb6
> 56bcb0] -> /usr/lib64/dovecot/libdovecot.so.0(io_remove+0x1d)
> [0x7f8bb656be31] -> /usr/lib64/dovecot/libdovecot.so.0(+0x10b5f8)
> [0x7f8bb65815f8] -> /usr/lib64/dovec
> ot/libdovecot.so.0(o_stream_cork+0x5a) [0x7f8bb657e289] ->
> /usr/lib64/dovecot/libssl_iostream_openssl.so(+0x6406) [0x7f8bb12d6406]
> -> /usr/lib64/dovecot/libssl_iost
> ream_openssl.so(openssl_iostream_bio_sync+0x18) [0x7f8bb12d6af6] ->
> /usr/lib64/dovecot/libssl_iostream_openssl.so(+0xa52e) 
> [0x7f8bb12da52e] -> /
> usr/lib64/dovecot/libssl_iostream_openssl.so(+0xa6ef) [0x7f8bb12da6ef]
> -> /usr/lib64/dovecot/libdovecot.so.0(o_stream_sendv+0xc7)
> [0x7f8bb657e765] ->
> /usr/lib64/dovecot/libdovecot.so.0(o_stream_send+0x61) [0x7f8bb657e688]
> -> /usr/lib64/dovecot/libdovecot.so.0(+0x10dc2c) [0x7f8bb6583c2c] ->
> /usr/lib64/dovecot/libdovecot.so.0(+0x10ddd4) [0x7f8bb6583dd4] ->
> /usr/lib64/dovecot/libdovecot.so.0(o_stream_sendv+0xc7) [0x7f8bb657e765]
> -> /usr/lib64/dovecot/libdovecot.so.0(o_stream_nsendv+0x55)
> [0x7f8bb657e93f] ->
> /usr/lib64/dovecot/libdovecot.so.0(o_stream_nsend+0x61) [0x7f8bb657e8d3]
> -> dovecot/doveadm-server() [0x444a35] ->
> /usr/lib64/dovecot/libdovecot.so.0(i_warning+0xce) [0x7f8bb654afdc] ->
> /usr/lib64/dovecot/libdovecot.so.0(io_loop_destroy+0x2ca)
> [0x7f8bb656d8cd] -> dovecot/doveadm-server() [0x4454d1] ->
> dovecot/doveadm-server() [0x445793] -> dovecot/doveadm-server()
> [0x445dd6] -> /usr/lib64/dovecot/libdovecot.so.0(io_loop_call_io+0xd6)
> [0x7f8bb656d241] ->
> /usr/lib64/dovecot/libdovecot.so.0(io_loop_handler_run_internal+0x225)
> [0x7f8bb656fe58] ->
> /usr/lib64/dovecot/libdovecot.so.0(io_loop_handler_run+0x3e)
> [0x7f8bb656d422] -> /usr/lib64/dovecot/libdovecot.so.0(io_loop_run+0xbe)
> [0x7f8bb656d345]
> Oct  7 20:31:24 thunderstorm.reub.net dovecot: doveadm: Fatal: master:
> service(doveadm): child 27186 killed with signal 6 (core dumped)
>
>
> thunderstorm reuben # file core
> core: ELF 64-bit LSB core file x86-64, version 1 (SYSV), SVR4-style,
> from 'dovecot/doveadm-server', real uid: 0, effective uid: 0, real gid:
> 0, effective gid: 0, execfn: '/usr/libexec/dovecot/doveadm-server',
> platform: 'x86_64'
>
> thunderstorm reuben # gdb /usr/libexec/dovecot/doveadm-server core
> GNU gdb (Gentoo 8.0.1 vanilla) 8.0.1
> Copyright (C) 2017 Free Software Foundation, Inc.
> License GPLv3+: GNU GPL version 3 or later
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> 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-pc-linux-gnu".
> Type "show configuration" for configuration details.
> For bug reporting instructions, please see:
> <https://bugs.gentoo.org/>.
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> <http://www.gnu.org/software/gdb/documentation/>.
> For help, type "help".
> Type "apropos word" to search for commands related to "word"...
> Reading symbols from /usr/libexec/dovecot/doveadm-server...done.
> [New LWP 27186]
> [Thread debugging using libthread_db enabled]
> Using host libthread_db library "/lib64/libthread_db.so.1".
> Core was generated by `dovecot/doveadm-server'.
> Program terminated with signal SIGABRT, Aborted.
> #0  0x00007f8bb60e7f70 in raise () from /lib64/libc.so.6
> (gdb) bt full
> #0  0x00007f8bb60e7f70 in raise () from /lib64/libc.so.6
> No symbol table info available.
> #1  0x00007f8bb60e9aa7 in abort () from /lib64/libc.so.6
> No symbol table info available.
> #2  0x00007f8bb654a8f5 in default_fatal_finish (type=LOG_TYPE_PANIC,
> status=0) at failures.c:201
>          backtrace = 0x228e4d8
> "/usr/lib64/dovecot/libdovecot.so.0(+0xd48a6) [0x7f8bb654a8a6] ->
> /usr/lib64/dovecot/libdovecot.so.0(+0xd5e26) [0x7f8bb654be26] ->
> /usr/lib64/dovecot/libdovecot.so.0(i_fatal+0) [0x7f8bb654ac39] -> /usr"...
> #3  0x00007f8bb654be26 in i_internal_fatal_handler (ctx=0x7ffef81daa50,
> format=0x7f8bb65ba898 "file %s: line %d (%s): assertion failed: (%s)",
> args=0x7ffef81daa70)
>      at failures.c:670
>          status = 0
> #4  0x00007f8bb654ac39 in i_panic (format=0x7f8bb65ba898 "file %s: line
> %d (%s): assertion failed: (%s)") at failures.c:275
>          ctx = {type = LOG_TYPE_PANIC, exit_status = 0, timestamp = 0x0,
> timestamp_usecs = 0}
>          args = {{gp_offset = 40, fp_offset = 48, overflow_arg_area =
> 0x7ffef81dab50, reg_save_area = 0x7ffef81daa90}}