zabbix_server crashed a few times during the day:

30696:20110915:170253.244 Got signal [signal:11(SIGSEGV),reason:1,refaddr:(nil)]. Crashing ...
30696:20110915:170253.248 ====== Fatal information: ======
30696:20110915:170253.248 Program counter: 0x7f3702b7e7c1
30696:20110915:170253.248 === Registers: ===
30696:20110915:170253.248 r8 = 3 = 3 = 3
30696:20110915:170253.248 r9 = 1 = 1 = 1
30696:20110915:170253.248 r10 = 7f3702b8182e = 139874245548078 = 139874245548078
30696:20110915:170253.248 r11 = 7f3702b8182e = 139874245548078 = 139874245548078
30696:20110915:170253.248 r12 = 81f = 2079 = 2079
30696:20110915:170253.248 r13 = 0 = 0 = 0
30696:20110915:170253.248 r14 = 26c2618 = 40642072 = 40642072
30696:20110915:170253.248 r15 = 26a3230 = 40514096 = 40514096
30696:20110915:170253.248 rdi = 0 = 0 = 0
30696:20110915:170253.248 rsi = 81f = 2079 = 2079
30696:20110915:170253.249 rbp = 4ac67c = 4900476 = 4900476
30696:20110915:170253.249 rbx = 0 = 0 = 0
30696:20110915:170253.249 rdx = 0 = 0 = 0
30696:20110915:170253.249 rax = 0 = 0 = 0
30696:20110915:170253.249 rcx = 0 = 0 = 0
30696:20110915:170253.249 rsp = 7fff5209c288 = 140734569759368 = 140734569759368
30696:20110915:170253.249 rip = 7f3702b7e7c1 = 139874245535681 = 139874245535681
30696:20110915:170253.249 efl = 10283 = 66179 = 66179
30696:20110915:170253.249 csgsfs = 33 = 51 = 51
30696:20110915:170253.249 err = 4 = 4 = 4
30696:20110915:170253.249 trapno = e = 14 = 14
30696:20110915:170253.249 oldmask = 0 = 0 = 0
30696:20110915:170253.249 cr2 = 0 = 0 = 0
30696:20110915:170253.249 === Backtrace: ===
30696:20110915:170253.249 14: /usr/local/sbin/zabbix_server(print_fatal_info+0xa2) [0x4492e8]
30696:20110915:170253.249 13: /usr/local/sbin/zabbix_server() [0x4487f5]
30696:20110915:170253.250 12: /lib/libc.so.6(+0x34810) [0x7f3702b36810]
30696:20110915:170253.250 11: /lib/libc.so.6(strlen+0x11) [0x7f3702b7e7c1]
30696:20110915:170253.250 10: /lib/libc.so.6(__strdup+0x16) [0x7f3702b7e476]
30696:20110915:170253.250 9: /usr/local/sbin/zabbix_server(zbx_strdup2+0x30) [0x44bb1d]
30696:20110915:170253.250 8: /usr/local/sbin/zabbix_server(DBget_history+0x28f) [0x46242b]
30696:20110915:170253.250 7: /usr/local/sbin/zabbix_server(evaluate_function+0x422) [0x4548bb]
30696:20110915:170253.250 6: /usr/local/sbin/zabbix_server(get_value_calculated+0x756) [0x42d7a6]
30696:20110915:170253.250 5: /usr/local/sbin/zabbix_server() [0x429a25]
30696:20110915:170253.250 4: /usr/local/sbin/zabbix_server(main_poller_loop+0x85) [0x42a745]
30696:20110915:170253.250 3: /usr/local/sbin/zabbix_server(MAIN_ZABBIX_ENTRY+0x501) [0x423323]
30696:20110915:170253.250 2: /usr/local/sbin/zabbix_server(daemon_start+0x2d0) [0x448d81]
30696:20110915:170253.250 1: /lib/libc.so.6(__libc_start_main+0xed) [0x7f3702b2317d]
30696:20110915:170253.250 0: /usr/local/sbin/zabbix_server() [0x420481]
30696:20110915:170253.250 === Memory map: ===
30696:20110915:170253.250 00400000-006c1000 r-xp 00000000 93:00 527920 /usr/local/sbin/zabbix_server
30696:20110915:170253.250 008c1000-00965000 rw-p 002c1000 93:00 527920 /usr/local/sbin/zabbix_server
30696:20110915:170253.250 00965000-00970000 rw-p 00000000 00:00 0
30696:20110915:170253.250 025f0000-026ff000 rw-p 00000000 00:00 0 [heap]
30696:20110915:170253.250 7f36fbacc000-7f36fcdfb000 r--p 00000000 93:00 533194 /usr/lib/locale/locale-archive
30696:20110915:170253.250 7f36fcdfb000-7f36fce03000 rw-s 00000000 00:04 7929865 /SYSV530000ab (deleted)
30696:20110915:170253.250 7f36fce03000-7f36fd2d0000 rw-s 00000000 00:04 7897094 /SYSV730000ab (deleted)
30696:20110915:170253.250 7f36fd2d0000-7f36fee04000 rw-s 00000000 00:04 7864325 /SYSV670000ab (deleted)
30696:20110915:170253.250 7f36fee04000-7f36ff605000 rw-s 00000000 00:04 7831556 /SYSV740000ab (deleted)
30696:20110915:170253.250 7f36ff605000-7f3700606000 rw-s 00000000 00:04 7798787 /SYSV780000ab (deleted)
30696:20110915:170253.250 7f3700606000-7f3700e0f000 rw-s 00000000 00:04 7766018 /SYSV680000ab (deleted)
30696:20110915:170253.250 7f3700e0f000-7f3700e24000 r-xp 00000000 93:00 532432 /usr/lib/libgcc_s.so.1
30696:20110915:170253.250 7f3700e24000-7f3701024000 ---p 00015000 93:00 532432 /usr/lib/libgcc_s.so.1
30696:20110915:170253.250 7f3701024000-7f3701025000 rw-p 00015000 93:00 532432 /usr/lib/libgcc_s.so.1
30696:20110915:170253.250 7f3701025000-7f3701026000 ---p 00000000 00:00 0
30696:20110915:170253.250 7f3701026000-7f3701826000 rw-p 00000000 00:00 0
30696:20110915:170253.250 7f3701826000-7f3701832000 r-xp 00000000 93:00 530563 /lib/libnss_files-2.14.so
30696:20110915:170253.250 7f3701832000-7f3701a31000 ---p 0000c000 93:00 530563 /lib/libnss_files-2.14.so
30696:20110915:170253.250 7f3701a31000-7f3701a32000 r--p 0000b000 93:00 530563 /lib/libnss_files-2.14.so
30696:20110915:170253.250 7f3701a32000-7f3701a33000 rw-p 0000c000 93:00 530563 /lib/libnss_files-2.14.so
30696:20110915:170253.251 7f3701a33000-7f3701a38000 r-xp 00000000 93:00 527558 /usr/lib/libgdbm.so.3.0.0
30696:20110915:170253.251 7f3701a38000-7f3701c37000 ---p 00005000 93:00 527558 /usr/lib/libgdbm.so.3.0.0
30696:20110915:170253.251 7f3701c37000-7f3701c38000 rw-p 00004000 93:00 527558 /usr/lib/libgdbm.so.3.0.0
30696:20110915:170253.251 7f3701c38000-7f3701c3f000 r-xp 00000000 93:00 530031 /usr/local/lib/libOpenIPMIutils.so.0.0.1
30696:20110915:170253.251 7f3701c3f000-7f3701e3f000 ---p 00007000 93:00 530031 /usr/local/lib/libOpenIPMIutils.so.0.0.1
30696:20110915:170253.251 7f3701e3f000-7f3701e40000 rw-p 00007000 93:00 530031 /usr/local/lib/libOpenIPMIutils.so.0.0.1
30696:20110915:170253.251 7f3701e40000-7f3701e95000 r-xp 00000000 93:00 527661 /usr/lib/libssl.so.1.0.0
30696:20110915:170253.251 7f3701e95000-7f3702094000 ---p 00055000 93:00 527661 /usr/lib/libssl.so.1.0.0
30696:20110915:170253.251 7f3702094000-7f370209c000 rw-p 00054000 93:00 527661 /usr/lib/libssl.so.1.0.0
30696:20110915:170253.251 7f370209c000-7f37020a3000 r-xp 00000000 93:00 530571 /lib/librt-2.14.so
30696:20110915:170253.251 7f37020a3000-7f37022a2000 ---p 00007000 93:00 530571 /lib/librt-2.14.so
30696:20110915:170253.251 7f37022a2000-7f37022a3000 r--p 00006000 93:00 530571 /lib/librt-2.14.so
30696:20110915:170253.251 7f37022a3000-7f37022a4000 rw-p 00007000 93:00 530571 /lib/librt-2.14.so
30696:20110915:170253.251 7f37022a4000-7f37022c8000 r-xp 00000000 93:00 532585 /usr/lib/libssh2.so.1.0.1
30696:20110915:170253.251 7f37022c8000-7f37024c8000 ---p 00024000 93:00 532585 /usr/lib/libssh2.so.1.0.1
30696:20110915:170253.251 7f37024c8000-7f37024c9000 rw-p 00024000 93:00 532585 /usr/lib/libssh2.so.1.0.1
30696:20110915:170253.251 7f37024c9000-7f37024e0000 r-xp 00000000 93:00 530568 /lib/libpthread-2.14.so
30696:20110915:170253.251 7f37024e0000-7f37026e0000 ---p 00017000 93:00 530568 /lib/libpthread-2.14.so
30696:20110915:170253.251 7f37026e0000-7f37026e1000 r--p 00017000 93:00 530568 /lib/libpthread-2.14.so
30696:20110915:170253.251 7f37026e1000-7f37026e2000 rw-p 00018000 93:00 530568 /lib/libpthread-2.14.so
30696:20110915:170253.251 7f37026e2000-7f37026e6000 rw-p 00000000 00:00 0
30696:20110915:170253.251 7f37026e6000-7f37026fe000 r-xp 00000000 93:00 527735 /usr/lib/libz.so.1.2.5
30696:20110915:170253.251 7f37026fe000-7f37028fd000 ---p 00018000 93:00 527735 /usr/lib/libz.so.1.2.5
30696:20110915:170253.251 7f37028fd000-7f37028fe000 rw-p 00017000 93:00 527735 /usr/lib/libz.so.1.2.5
30696:20110915:170253.251 7f37028fe000-7f3702900000 r-xp 00000000 93:00 530548 /lib/libdl-2.14.so
30696:20110915:170253.251 7f3702900000-7f3702b00000 ---p 00002000 93:00 530548 /lib/libdl-2.14.so
30696:20110915:170253.251 7f3702b00000-7f3702b01000 r--p 00002000 93:00 530548 /lib/libdl-2.14.so
30696:20110915:170253.251 7f3702b01000-7f3702b02000 rw-p 00003000 93:00 530548 /lib/libdl-2.14.so
30696:20110915:170253.251 7f3702b02000-7f3702c59000 r-xp 00000000 93:00 525516 /lib/libc-2.14.so
30696:20110915:170253.251 7f3702c59000-7f3702e59000 ---p 00157000 93:00 525516 /lib/libc-2.14.so
30696:20110915:170253.251 7f3702e59000-7f3702e5d000 r--p 00157000 93:00 525516 /lib/libc-2.14.so
30696:20110915:170253.251 7f3702e5d000-7f3702e5e000 rw-p 0015b000 93:00 525516 /lib/libc-2.14.so
30696:20110915:170253.251 7f3702e5e000-7f3702e63000 rw-p 00000000 00:00 0
30696:20110915:170253.251 7f3702e63000-7f3702e76000 r-xp 00000000 93:00 530570 /lib/libresolv-2.14.so
30696:20110915:170253.251 7f3702e76000-7f3703076000 ---p 00013000 93:00 530570 /lib/libresolv-2.14.so
30696:20110915:170253.251 7f3703076000-7f3703077000 r--p 00013000 93:00 530570 /lib/libresolv-2.14.so
30696:20110915:170253.252 7f3703077000-7f3703078000 rw-p 00014000 93:00 530570 /lib/libresolv-2.14.so
30696:20110915:170253.252 7f3703078000-7f370307a000 rw-p 00000000 00:00 0
30696:20110915:170253.252 7f370307a000-7f37030fb000 r-xp 00000000 93:00 530556 /lib/libm-2.14.so
30696:20110915:170253.252 7f37030fb000-7f37032fa000 ---p 00081000 93:00 530556 /lib/libm-2.14.so
30696:20110915:170253.252 7f37032fa000-7f37032fb000 r--p 00080000 93:00 530556 /lib/libm-2.14.so
30696:20110915:170253.252 7f37032fb000-7f37032fc000 rw-p 00081000 93:00 530556 /lib/libm-2.14.so
30696:20110915:170253.252 7f37032fc000-7f3703301000 r-xp 00000000 93:00 530023 /usr/local/lib/libOpenIPMIposix.so.0.0.1
30696:20110915:170253.252 7f3703301000-7f3703501000 ---p 00005000 93:00 530023 /usr/local/lib/libOpenIPMIposix.so.0.0.1
30696:20110915:170253.252 7f3703501000-7f3703502000 rw-p 00005000 93:00 530023 /usr/local/lib/libOpenIPMIposix.so.0.0.1
30696:20110915:170253.252 7f3703502000-7f37035ed000 r-xp 00000000 93:00 530017 /usr/local/lib/libOpenIPMI.so.0.0.5
30696:20110915:170253.252 7f37035ed000-7f37037ec000 ---p 000eb000 93:00 530017 /usr/local/lib/libOpenIPMI.so.0.0.5
30696:20110915:170253.252 7f37037ec000-7f3703808000 rw-p 000ea000 93:00 530017 /usr/local/lib/libOpenIPMI.so.0.0.5
30696:20110915:170253.252 7f3703808000-7f370380c000 rw-p 00000000 00:00 0
30696:20110915:170253.252 7f370380c000-7f37039a2000 r-xp 00000000 93:00 527529 /usr/lib/libcrypto.so.1.0.0
30696:20110915:170253.252 7f37039a2000-7f3703ba1000 ---p 00196000 93:00 527529 /usr/lib/libcrypto.so.1.0.0
30696:20110915:170253.252 7f3703ba1000-7f3703bc4000 rw-p 00195000 93:00 527529 /usr/lib/libcrypto.so.1.0.0
30696:20110915:170253.252 7f3703bc4000-7f3703bc8000 rw-p 00000000 00:00 0
30696:20110915:170253.252 7f3703bc8000-7f3703c6f000 r-xp 00000000 93:00 532558 /usr/lib/libnetsnmp.so.25.0.1
30696:20110915:170253.252 7f3703c6f000-7f3703e6e000 ---p 000a7000 93:00 532558 /usr/lib/libnetsnmp.so.25.0.1
30696:20110915:170253.252 7f3703e6e000-7f3703e72000 rw-p 000a6000 93:00 532558 /usr/lib/libnetsnmp.so.25.0.1
30696:20110915:170253.252 7f3703e72000-7f3703ea8000 rw-p 00000000 00:00 0
30696:20110915:170253.252 7f3703ea8000-7f3703f02000 r-xp 00000000 93:00 532305 /usr/lib/libcurl.so.4.2.0
30696:20110915:170253.252 7f3703f02000-7f3704102000 ---p 0005a000 93:00 532305 /usr/lib/libcurl.so.4.2.0
30696:20110915:170253.252 7f3704102000-7f3704105000 rw-p 0005a000 93:00 532305 /usr/lib/libcurl.so.4.2.0
30696:20110915:170253.252 7f3704105000-7f3704124000 r-xp 00000000 93:00 525453 /lib/ld-2.14.so
30696:20110915:170253.252 7f370430a000-7f3704313000 rw-p 00000000 00:00 0
30696:20110915:170253.252 7f3704320000-7f3704323000 rw-p 00000000 00:00 0
30696:20110915:170253.252 7f3704323000-7f3704324000 r--p 0001e000 93:00 525453 /lib/ld-2.14.so
30696:20110915:170253.252 7f3704324000-7f3704325000 rw-p 0001f000 93:00 525453 /lib/ld-2.14.so
30696:20110915:170253.252 7f3704325000-7f3704326000 rw-p 00000000 00:00 0
30696:20110915:170253.252 7fff52086000-7fff520f0000 rw-p 00000000 00:00 0 [stack]
30696:20110915:170253.252 7fff521bb000-7fff521bc000 r-xp 00000000 00:00 0 [vdso]
30696:20110915:170253.252 ffffffffff600000-ffffffffff601000 r-xp 00000000 00:00 0 [vsyscall]
30696:20110915:170253.252 ================================
30696:20110915:170253.252 Please consider attaching a disassembly listing to your bug report.
30696:20110915:170253.252 This listing can be produced with, e.g., objdump -DSswx zabbix_server.
30696:20110915:170253.252 ================================
30671:20110915:170253.254 One child process died (PID:30696,exitcode/signal:255). Exiting ...
30671:20110915:170255.255 Syncing history data...
30671:20110915:170255.594 Syncing history data... done.
30671:20110915:170255.594 Syncing trends data...
30671:20110915:170257.168 Syncing trends data... done.
30671:20110915:170257.168 Zabbix Server stopped. Zabbix 1.8.7 (revision 21394).