[exim-dev] Exim 4.86 segfault on FreeBSD 10.2

After an upgrade to FreeBSD 10.2 and Exim 4.85 to 4.86, I started noticing occasional Exim core dumps…


Twice now I’ve seen some with similar traces… Below:


Exim version 4.86 #1 (FreeBSD 10.2) built 18-Sep-2015 19:29:31
Copyright (c) University of Cambridge, 1995 - 2015
(c) The Exim Maintainers and contributors in ACKNOWLEDGMENTS file, 2007 - 2015
Probably Berkeley DB version 1.8x (native mode)
Support for: crypteq iconv() IPv6 use_setclassresources Perl Expand_dlfunc OpenSSL Content_Scanning DKIM DNSSEC PRDR Experimental_SPF
Lookups (built-in): lsearch wildlsearch nwildlsearch iplsearch cdb dbm dbmjz dbmnz dnsdb dsearch pgsql
Authenticators: plaintext
Routers: accept dnslookup ipliteral manualroute queryprogram redirect
Transports: appendfile/maildir autoreply lmtp pipe smtp
Fixed never_users: 0
Size of off_t: 8
Configuration file is /etc/exim/exim.conf



GNU gdb 6.1.1 [FreeBSD]
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Type "show copying" to see the conditions.
There is absolutely no warranty for GDB. Type "show warranty" for details.
This GDB was configured as "amd64-marcel-freebsd"...(no debugging symbols found)...
Core was generated by `exim'.
Program terminated with signal 11, Segmentation fault.
Reading symbols from /lib/libcrypt.so.5...(no debugging symbols found)...done.
Loaded symbols for /lib/libcrypt.so.5
Reading symbols from /lib/libm.so.5...(no debugging symbols found)...done.
Loaded symbols for /lib/libm.so.5
Reading symbols from /lib/libutil.so.9...(no debugging symbols found)...done.
Loaded symbols for /lib/libutil.so.9
Reading symbols from /usr/local/lib/libspf2.so.2...(no debugging symbols found)...done.
Loaded symbols for /usr/local/lib/libspf2.so.2
Reading symbols from /lib/libthr.so.3...(no debugging symbols found)...done.
Loaded symbols for /lib/libthr.so.3
Reading symbols from /usr/local/lib/libpq.so.5...(no debugging symbols found)...done.
Loaded symbols for /usr/local/lib/libpq.so.5
Reading symbols from /usr/local/lib/perl5/5.22/mach/CORE/libperl.so.5.22...(no debugging symbols found)...done.
Loaded symbols for /usr/local/lib/perl5/5.22/mach/CORE/libperl.so.5.22
Reading symbols from /usr/lib/libssl.so.7...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libssl.so.7
Reading symbols from /lib/libcrypto.so.7...(no debugging symbols found)...done.
Loaded symbols for /lib/libcrypto.so.7
Reading symbols from /usr/local/lib/libpcre.so.1...(no debugging symbols found)...done.
Loaded symbols for /usr/local/lib/libpcre.so.1
Reading symbols from /lib/libc.so.7...(no debugging symbols found)...done.
Loaded symbols for /lib/libc.so.7
Reading symbols from /usr/local/lib/libintl.so.8...(no debugging symbols found)...done.
Loaded symbols for /usr/local/lib/libintl.so.8
Reading symbols from /libexec/ld-elf.so.1...(no debugging symbols found)...done.
Loaded symbols for /libexec/ld-elf.so.1
#0 0x00000008011a0a27 in pthread_getspecific () from /lib/libthr.so.3
Cannot find new threads: generic error
(gdb) bt
#0 0x00000008011a0a27 in pthread_getspecific () from /lib/libthr.so.3
Cannot access memory at address 0x7fffffffd468