Hi,
I'm having a strange problem with an application I developed in
perl to do network inventory.
The application worked fine with perl 5.8.8 and net-snmp version
5.2.1. I'm using a fedora core 5.
When I ported the application on a fedora core 6 with perl 5.8.8
and net-snmp version 5.3.1 the perl process crashes.
I tryed to update net-snmp to version 5.4 but the problem
remain.
The problem seems to be related to the getnext call because
after some debugging I found that the following code
(extracted from the application) expose the syntom (but does not
crashes).
The error produced...
------------------------------
Did not find 'sysUpTime' in module SNMPv2-MIB
(/usr/share/snmp/mibs/DISMAN-EVENT-MIB.txt)
Unlinked OID in DISMAN-EVENT-MIB: sysUpTimeInstance ::= { sysUpTime 0 }
Undefined identifier: sysUpTime near line 568 of
/usr/share/snmp/mibs/DISMAN-EVENT-MIB.txt
Cannot find module (1): At line 1 in (none)
Cannot find module (1): At line 1 in (none)
netsnmp_assert pss->s_snmp_errno != (-11) failed snmp_api.c:3124
snmp_build()
----------------------------
... and the code that produce the error.
----------------------------
use SNMP ;
my $lSnmp ;
openSNMP () ;
getPortsInfo () ;
sub openSNMP {
$lSnmp = new SNMP::Session (
DestHost => <ip address of a cisco switch>,
Community => <community>,
Version => 1,
Retries => 3,
Timeout => 2000000
) ;
if (!defined ($lSnmp)) {
return 0 ;
} else {
return 1 ;
}
}
sub getPortsInfo {
my $lVars ;
my $lIdx ;
$lSnmp->{UseSprintValue} = 1 ;
$lVars = new SNMP::VarList (['IF-MIB::ifName'],
['IF-MIB::ifSpeed'],
['IF-MIB::ifConnectorPresent'],
['RFC1213-MIB::ifAdminStatus'],
['RFC1213-MIB::ifOperStatus']
) ;
$lSnmp->getnext ($lVars) ;
while (!$lSnmp->{ErrorStr} and $$lVars[0]->tag =~ /ifName/) {
... do some stuff
} continue {
$lSnmp->getnext ($lVars) ;
}
$lSnmp->{UseSprintValue} = 0 ;
}
----------
The application on the fedora core 6 crashed with the following
messages...
Did not find 'sysUpTime' in module SNMPv2-MIB
(/usr/share/snmp/mibs/DISMAN-EVENT-MIB.txt)
Unlinked OID in DISMAN-EVENT-MIB: sysUpTimeInstance ::= { sysUpTime 0 }
Undefined identifier: sysUpTime near line 568 of
/usr/share/snmp/mibs/DISMAN-EVENT-MIB.txt
Cannot find module (1): At line 1 in (none)
Cannot find module (1): At line 1 in (none)
netsnmp_assert pss->s_snmp_errno != (-11) failed snmp_api.c:3124
snmp_build()
Unlinked OID in FDDI-SMT73-MIB: fddi ::= { transmission 15 }
Undefined identifier: transmission near line 18 of
/usr/share/snmp/mibs/Cisco/FDDI-SMT73-MIB.mib
Did not find 'fddimibPORTSMTIndex' in module FDDI-SMT73-MIB
(/usr/share/snmp/mibs/Cisco/CISCO-STACK-MIB.my)
Did not find 'fddimibPORTIndex' in module FDDI-SMT73-MIB
(/usr/share/snmp/mibs/Cisco/CISCO-STACK-MIB.my)
Cannot find module (1): At line 1 in (none)
*** glibc detected *** netmap2.pl dmz: Loading hosts/addresses: free():
invalid next size (normal): 0x09b09f10 ***
======= Backtrace: =========
/lib/libc.so.6[0x4c19109d] /lib/libc.so.6(cfree+0x90)[0x4c1946f0]
/usr/lib/perl5/5.8.8/i386-linux-thread-multi/CORE/libperl.so(Perl_safesy
sfree+0x21)[0x4c31cbe1]
/usr/lib/perl5/vendor_perl/5.8.8/i386-linux-thread-multi/auto/SNMP/SNMP.
so(XS_SNMP__getnext+0x2d8)[0x8d3128]
/usr/lib/perl5/5.8.8/i386-linux-thread-multi/CORE/libperl.so(Perl_pp_ent
ersub+0x40d)[0x4c33251d]
/usr/lib/perl5/5.8.8/i386-linux-thread-multi/CORE/libperl.so(Perl_runops
_standard+0x1f)[0x4c32b97f]
/usr/lib/perl5/5.8.8/i386-linux-thread-multi/CORE/libperl.so(perl_run+0x
2ee)[0x4c2d11ce]
netmap2.pl dmz: Loading hosts/addresses(main+0x13e)[0x80491ee]
/lib/libc.so.6(__libc_start_main+0xdc)[0x4c140f2c]
netmap2.pl dmz: Loading hosts/addresses[0x8049021]
======= Memory map: ========
00110000-00122000 r-xp 00000000 fd:01 920207 /usr/lib/libz.so.1.2.3
00122000-00123000 rwxp 00011000 fd:01 920207 /usr/lib/libz.so.1.2.3
00123000-0012c000 r-xp 00000000 fd:01 1015833
/usr/lib/perl5/5.8.8/i386-linux-thread-multi/auto/List/Util/Util.so
0012c000-0012d000 rwxp 00008000 fd:01 1015833
/usr/lib/perl5/5.8.8/i386-linux-thread-multi/auto/List/Util/Util.so
0012d000-00136000 r-xp 00000000 fd:00 229417
/lib/libnss_files-2.5.so
00136000-00137000 r-xp 00008000 fd:00 229417
/lib/libnss_files-2.5.so
00137000-00138000 rwxp 00009000 fd:00 229417
/lib/libnss_files-2.5.so
00138000-00157000 r-xp 00000000 fd:01 920038 /usr/lib/libpq.so.4.1
00157000-00158000 rwxp 0001f000 fd:01 920038 /usr/lib/libpq.so.4.1
00190000-001ac000 r-xp 00000000 fd:01 1018946
/usr/lib/perl5/vendor_perl/5.8.8/i386-linux-thread-multi/auto/DBI/DBI.so
001ac000-001ad000 rwxp 0001c000 fd:01 1018946
/usr/lib/perl5/vendor_perl/5.8.8/i386-linux-thread-multi/auto/DBI/DBI.so
001b5000-001b9000 r-xp 00000000 fd:01 1015827
/usr/lib/perl5/5.8.8/i386-linux-thread-multi/auto/IO/IO.so
001b9000-001ba000 rwxp 00003000 fd:01 1015827
/usr/lib/perl5/5.8.8/i386-linux-thread-multi/auto/IO/IO.so
001dd000-001e2000 r-xp 00000000 fd:01 1016002
/usr/lib/perl5/5.8.8/i386-linux-thread-multi/auto/Socket/Socket.so
001e2000-001e3000 rwxp 00004000 fd:01 1016002
/usr/lib/perl5/5.8.8/i386-linux-thread-multi/auto/Socket/Socket.so
00295000-00299000 r-xp 00000000 fd:01 1016032
/usr/lib/perl5/5.8.8/i386-linux-thread-multi/auto/Sys/Syslog/Syslog.so
00299000-0029a000 rwxp 00003000 fd:01 1016032
/usr/lib/perl5/5.8.8/i386-linux-thread-multi/auto/Sys/Syslog/Syslog.so
003d0000-003ec000 r-xp 00000000 fd:01 1015840
/usr/lib/perl5/5.8.8/i386-linux-thread-multi/auto/POSIX/POSIX.so
003ec000-003ed000 rwxp 0001b000 fd:01 1015840
/usr/lib/perl5/5.8.8/i386-linux-thread-multi/auto/POSIX/POSIX.so
00495000-0049c000 r-xp 00000000 fd:01 1179892
/usr/lib/perl5/vendor_perl/5.8.8/i386-linux-thread-multi/auto/NetSNMP/de
fault_store/default_store.so
0049c000-0049d000 rwxp 00006000 fd:01 1179892
/usr/lib/perl5/vendor_perl/5.8.8/i386-linux-thread-multi/auto/NetSNMP/de
fault_store/default_store.so
004d8000-004d9000 r-xp 004d8000 00:00 0 [vdso]
004d9000-007b6000 r-xp 00000000 fd:00 231329
/lib/libnss_ldap-2.4.90.so
007b6000-007ce000 rwxp 002dc000 fd:00 231329
/lib/libnss_ldap-2.4.90.so
007ce000-007dc000 rwxp 007ce000 00:00 0
008bc000-008df000 r-xp 00000000 fd:01 1179893
/usr/lib/perl5/vendor_perl/5.8.8/i386-linux-thread-multi/auto/SNMP/SNMP.
so
008df000-008e0000 rwxp 00022000 fd:01 1179893
/usr/lib/perl5/vendor_perl/5.8.8/i386-linux-thread-multi/auto/SNMP/SNMP.
so
0092a000-00931000 r-xp 00000000 fd:01 922400
/usr/lib/libwrap.so.0.7.6
00931000-00932000 rwxp 00007000 fd:01 922400
/usr/lib/libwrap.so.0.7.6
00934000-009cb000 r-xp 00000000 fd:01 922399
/usr/lib/libnetsnmp.so.10.0.1
009cb000-009cd000 rwxp 00097000 fd:01 922399
/usr/lib/libnetsnmp.so.10.0.1
009cd000-009ec000 rwxp 009cd000 00:00 0
00b0c000-00b10000 r-xp 00000000 fd:00 229415 /lib/libnss_dns-2.5.so
00b10000-00b11000 r-xp 00003000 fd:00 229415 /lib/libnss_dns-2.5.so
00b11000-00b12000 rwxp 00004000 fd:00 229415 /lib/libnss_dns-2.5.so
00bc9000-00bd0000 r-xp 00000000 fd:01 1016816
/usr/lib/perl5/vendor_perl/5.8.8/i386-linux-thread-multi/auto/Socket6/So
cket6.so
00bd0000-00bd1000 rwxp 00006000 fd:01 1016816
/usr/lib/perl5/vendor_perl/5.8.8/i386-linux-thread-multi/auto/Socket6/So
cket6.so
00d8b000-00d90000 r-xp 00000000 fd:01 1016035
/usr/lib/perl5/5.8.8/i386-linux-thread-multi/auto/Time/HiRes/HiRes.so
00d90000-00d91000 rwxp 00004000 fd:01 1016035
/usr/lib/perl5/5.8.8/i386-linux-thread-multi/auto/Time/HiRes/HiRes.so
00dc9000-00dd1000 r-xp 00000000 fd:01 951620
/usr/lib/perl5/5.8.8/i386-linux-thread-multi/auto/Data/Dumper/Dumper.so
00dd1000-00dd2000 rwxp 00007000 fd:01 951620
/usr/lib/perl5/5.8.8/i386-linux-thread-multi/auto/Data/Dumper/Dumper.so
00df9000-00dfb000 r-xp 00000000 fd:01 1016873
/usr/lib/perl5/vendor_perl/5.8.8/i386-linux-thread-multi/auto/Net/DNS/DN
S.so
00dfb000-00dfc000 rwxp 00001000 fd:01 1016873
/usr/lib/perl5/vendor_perl/5.8.8/i386-linux-thread-multi/auto/Net/DNS/DN
S.so
00e12000-00e17000 r-xp 00000000 fd:01 1179883
/usr/lib/perl5/vendor_perl/5.8.8/i386-linux-thread-multi/auto/NetSNMP/OI
D/OID.so
00e17000-00e18000 rwxp 00005000 fd:01 1179883
/usr/lib/perl5/vendor_perl/5.8.8/i386-linux-thread-multi/auto/NetSNMP/OI
D/OID.so
00e18000-00e19000 rwxp 00e18000 00:00 0
00e56000-00e59000 r-xp 00000000 fd:01 1015812
/usr/lib/perl5/5.8.8/i386-linux-thread-multi/auto/Fcntl/Fcntl.so
00e59000-00e5a000 rwxp 00002000 fd:01 1015812
/usr/lib/perl5/5.8.8/i386-linux-thread-multi/auto/Fcntl/Fcntl.so
00eb1000-00ed3000 r-xp 00000000 fd:01 1179926
/usr/lib/perl5/vendor_perl/5.8.8/i386-linux-thread-multi/auto/DBD/Pg/Pg.
so
00ed3000-00ed4000 rwxp 00022000 fd:01 1179926
/usr/lib/perl5/vendor_perl/5.8.8/i386-linux-thread-multi/auto/DBD/Pg/Pg.
so
08048000-0804b000 r-xp 00000000 fd:01 1671310 /usr/bin/perl
0804b000-0804c000 rwxp 00002000 fd:01 1671310 /usr/bin/perl
090f3000-09b45000 rwxp 090f3000 00:00 0
4c10e000-4c127000 r-xp 00000000 fd:00 229379 /lib/ld-2.5.so
4c127000-4c128000 r-xp 00018000 fd:00 229379 /lib/ld-2.5.so
4c128000-4c129000 rwxp 00019000 fd:00 229379 /lib/ld-2.5.so
4c12b000-4c262000 r-xp 00000000 fd:00 229416 /lib/libc-2.5.so
4c262000-4c264000 r-xp 00137000 fd:00 229416 /lib/libc-2.5.so
4c264000-4c265000 rwxp 00139000 fd:00 229416 /lib/libc-2.5.so
4c265000-4c268000 rwxp 4c265000 00:00 0
4c26a000-4c28f000 r-xp 00000000 fd:00 229589 /lib/libm-2.5.so
4c28f000-4c290000 r-xp 00024000 fd:00 229589 /lib/libm-2.5.so
4c290000-4c291000 rwxp 00025000 fd:00 229589 /lib/libm-2.5.so
4c293000-4c295000 r-xp 00000000 fd:00 229434 /lib/libdl-2.5.so
4c295000-4c296000 r-xp 00001000 fd:00 229434 /lib/libdl-2.5.so
4c296000-4c297000 rwxp 00002000 fd:00 229434 /lib/libdl-2.5.so
4c2aa000-4c3d4000 r-xp 00000000 fd:01 951722
/usr/lib/perl5/5.8.8/i386-linux-thread-multi/CORE/libperl.so
4c3d4000-4c3d9000 rwxp 0012a000 fd:01 951722
/usr/lib/perl5/5.8.8/i386-linux-thread-multi/CORE/libperl.so
4c3d9000-4c3db000 rwxp 4c3d9000 00:00 0
4c4a0000-4c4b3000 r-xp 00000000 fd:00 229574 /lib/libpthread-2.5.so
4c4b3000-4c4b4000 r-xp 00012000 fd:00 229574 /lib/libpthread-2.5.so
4c4b4000-4c4b5000 rwxp 00013000 fd:00 229574 /lib/libpthread-2.5.so
4c4b5000-4c4b7000 rwxp 4c4b5000 00:00 0
4cbb1000-4cbc0000 r-xp 00000000 fd:00 229618 /lib/libresolv-2.5.so
4cbc0000-4cbc1000 r-xp 0000e000 fd:00 229618 /lib/libresolv-2.5.so
4cbc1000-4cbc2000 rwxp 0000f000 fd:00 229618 /lib/libresolv-2.5.so
4cbc2000-4cbc4000 rwxp 4cbc2000 00:00 0
4cbc6000-4cce2000 r-xp 00000000 fd:00 229635
/lib/libcrypto.so.0.9.8b
4cce2000-4ccf4000 rwxp 0011c000 fd:00 229635
/lib/libcrypto.so.0.9.8b
4ccf4000-4ccf8000 rwxp 4ccf4000 00:00 0
4ccfa000-4cd0d000 r-xp 00000000 fd:00 229617 /lib/libnsl-2.5.so
4cd0d000-4cd0e000 r-xp 00012000 fd:00 229617 /lib/libnsl-2.5.so
4cd0e000-4cd0f000 rwxp 00013000 fd:00 229617 /lib/libnsl-2.5.so
4cd0f000-4cd11000 rwxp 4cd0f000 00:00 0
4cd1e000-4cd20000 r-xp 00000000 fd:00 229629 /lib/libcom_err.so.2.1
4cd20000-4cd21000 rwxp 00001000 fd:00 229629 /lib/libcom_err.so.2.1
4cd23000-4cd4d000 r-xp 00000000 fd:01 920915
/usr/lib/libgssapi_krb5.so.2.2
4cd4d000-4cd4e000 rwxp 00029000 fd:01 920915
/usr/lib/libgssapi_krb5.so.2.2
4cd50000-4cd75000 r-xp 00000000 fd:01 920911
/usr/lib/libk5crypto.so.3.0
4cd75000-4cd76000 rwxp 00025000 fd:01 920911
/usr/lib/libk5crypto.so.3.0
4cd78000-4cd7f000 r-xp 00000000 fd:01 920909
/usr/lib/libkrb5support.so.0.1
4cd7f000-4cd80000 rwxp 00006000 fd:01 920909
/usr/lib/libkrb5support.so.0.1
4cd82000-4ce08000 r-xp 00000000 fd:01 920913 /usr/lib/libkrb5.so.3.2
4ce08000-4ce0a000 rwxp 00086000 fd:01 920913 /usr/lib/libkrb5.so.3.2
4ce0c000-4ce4d000 r-xp 00000000 fd:00 230223 /lib/libssl.so.0.9.8b
4ce4d000-4ce51000 rwxp 00040000 fd:00 230223 /lib/libssl.so.0.9.8b
4d01b000-4d026000 r-xp 00000000 fd:00 230231
/lib/libgcc_s-4.1.1-20070105.so.1
4d026000-4d027000 rwxp 0000a000 fd:00 230231
/lib/libgcc_s-4.1.1-20070105.so.1
4d32f000-4d331000 r-xp 00000000 fd:00 230226 /lib/libutil-2.5.so
4d331000-4d332000 r-xp 00001000 fd:00 230226 /lib/libutil-2.5.so
4d332000-4d333000 rwxp 00002000 fd:00 230226 /lib/libutil-2.5.so
4d573000-4d578000 r-xp 00000000 fd:00 229580 /lib/libcrypt-2.5.so
4d578000-4d579000 r-xp 00004000 fd:00 229580 /lib/libcrypt-2.5.so
4d579000-4d57a000 rwxp 00005000 fd:00 229580 /lib/libcrypt-2.5.so
4d57a000-4d5a1000 rwxp 4d57a000 00:00 0
b7c00000-b7c21000 rw-p b7c00000 00:00 0
b7c21000-b7d00000 ---p b7c21000 00:00 0
b7d25000-b7d46000 rw-p b7d25000 00:00 0
b7d46000-b7f46000 r--p 00000000 fd:01 921160
/usr/lib/locale/locale-archive
b7f46000-b7f49000 rw-p b7f46000 00:00 0
b7f59000-b7f5a000 rw-p b7f59000 00:00 0
bfe46000-bfe5b000 rw-p bfe46000 00:00 0 [stack]
Aborted
Am I doing something wrong ?
Thanks
maxmere
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