lmtp segfault after upgrade

[Tom Sommer]

On 2017-05-01 19:26, Aki Tuomi wrote:
>> On May 1, 2017 at 8:21 PM Tom Sommer <mail at tomsommer.dk> wrote:
>> 
>> 
>> I just upgraded our Director to 2.2.29.1 from 2.2.26, and now my dmesg
>> and /var/log/messages are getting flooded by these errors:
>> 
>> lmtp[45758]: segfault at 21 ip 00007fb412d3ad11 sp 00007ffe83ad2df0
>> error 4 in libdovecot.so.0.0.0[7fb412c95000+11c000]
>> 
>> Any ideas?
>> 
>> --
>> Tom
> 
> Try get a core dump and run it thru gdb.


[root at director1 dovecot]# gdb /usr/libexec/dovecot/lmtp core.19749
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/lmtp...done.
[New Thread 19749]
Reading symbols from /usr/lib/dovecot/libdovecot-lda.so.0...done.
Loaded symbols for /usr/lib/dovecot/libdovecot-lda.so.0
Reading symbols from /usr/lib/dovecot/libdovecot-storage.so.0...done.
Loaded symbols for /usr/lib/dovecot/libdovecot-storage.so.0
Reading symbols from /usr/lib/dovecot/libdovecot.so.0...done.
Loaded symbols for /usr/lib/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/lib/dovecot/libssl_iostream_openssl.so...done.
Loaded symbols for /usr/lib/dovecot/libssl_iostream_openssl.so
Reading symbols from /usr/lib64/libssl.so.10...(no debugging symbols 
found)...done.
Loaded symbols for /usr/lib64/libssl.so.10
Reading symbols from /usr/lib64/libcrypto.so.10...(no debugging symbols 
found)...done.
Loaded symbols for /usr/lib64/libcrypto.so.10
Reading symbols from /lib64/libgssapi_krb5.so.2...(no debugging symbols 
found)...done.
Loaded symbols for /lib64/libgssapi_krb5.so.2
Reading symbols from /lib64/libkrb5.so.3...(no debugging symbols 
found)...done.
Loaded symbols for /lib64/libkrb5.so.3
Reading symbols from /lib64/libcom_err.so.2...(no debugging symbols 
found)...done.
Loaded symbols for /lib64/libcom_err.so.2
Reading symbols from /lib64/libk5crypto.so.3...(no debugging symbols 
found)...done.
Loaded symbols for /lib64/libk5crypto.so.3
Reading symbols from /lib64/libz.so.1...(no debugging symbols 
found)...done.
Loaded symbols for /lib64/libz.so.1
Reading symbols from /lib64/libkrb5support.so.0...(no debugging symbols 
found)...done.
Loaded symbols for /lib64/libkrb5support.so.0
Reading symbols from /lib64/libkeyutils.so.1...(no debugging symbols 
found)...done.
Loaded symbols for /lib64/libkeyutils.so.1
Reading symbols from /lib64/libresolv.so.2...(no debugging symbols 
found)...done.
Loaded symbols for /lib64/libresolv.so.2
Reading symbols from /lib64/libselinux.so.1...(no debugging symbols 
found)...done.
Loaded symbols for /lib64/libselinux.so.1
Core was generated by `dovecot/lmtp'.
Program terminated with signal 11, Segmentation fault.
#0  i_stream_seek (stream=0x21, v_offset=0) at istream.c:298
298             if (v_offset >= stream->v_offset &&
Missing separate debuginfos, use: debuginfo-install 
glibc-2.12-1.209.el6_9.1.x86_64 keyutils-libs-1.4-5.el6.x86_64 
krb5-libs-1.10.3-65.el6.x86_64 libcom_err-1.41.12-23.el6.x86_64 
libselinux-2.0.94-7.el6.x86_64 openssl-1.0.1e-57.el6.x86_64 
zlib-1.2.3-29.el6.x86_64