Thank you for the clarification. From: Anders Wallin <walli...@gmail.com> Date: Monday, December 2, 2019 at 12:18 PM To: "David Moriconi (dmoricon)" <dmori...@cisco.com> Cc: "net-snmp-coders@lists.sourceforge.net" <net-snmp-coders@lists.sourceforge.net> Subject: Re: Net-SNMP crash when AgentX SubAgent times out
Hi David, I'm just a user of net-snmp that sometimes provides fixes to bugs and I don't know the release schedule for 5.8.1 Regards Anders Wallin On Mon, Dec 2, 2019 at 6:12 PM David Moriconi (dmoricon) <dmori...@cisco.com<mailto:dmori...@cisco.com>> wrote: Hi Anders, Unfortunately we cannot take the latest code like this since it is part of our product and we prefer to use an official stable release. That’s why I would like to know if there is a plan to release a stable version soon. Thank you, David From: "David Moriconi (dmoricon) via Net-snmp-coders" <net-snmp-coders@lists.sourceforge.net<mailto:net-snmp-coders@lists.sourceforge.net>> Reply-To: "David Moriconi (dmoricon)" <dmori...@cisco.com<mailto:dmori...@cisco.com>> Date: Thursday, November 28, 2019 at 8:27 AM To: Anders Wallin <walli...@gmail.com<mailto:walli...@gmail.com>> Cc: "net-snmp-coders@lists.sourceforge.net<mailto:net-snmp-coders@lists.sourceforge.net>" <net-snmp-coders@lists.sourceforge.net<mailto:net-snmp-coders@lists.sourceforge.net>> Subject: Re: Net-SNMP crash when AgentX SubAgent times out Hi Anders, Thank you for your response Do you know if a newer version will be released soon with the fix? David From: Anders Wallin <walli...@gmail.com<mailto:walli...@gmail.com>> Date: Wednesday, November 27, 2019 at 4:40 PM To: "David Moriconi (dmoricon)" <dmori...@cisco.com<mailto:dmori...@cisco.com>> Cc: "net-snmp-coders@lists.sourceforge.net<mailto:net-snmp-coders@lists.sourceforge.net>" <net-snmp-coders@lists.sourceforge.net<mailto:net-snmp-coders@lists.sourceforge.net>> Subject: Re: Net-SNMP crash when AgentX SubAgent times out Hi David, yes there are a few patches that fixes this issue, I suggest the you use the latest code from g...@github.com:net-snmp/net-snmp.git Regards Anders Wallin On Wed, Nov 27, 2019 at 10:17 PM David Moriconi (dmoricon) via Net-snmp-coders <net-snmp-coders@lists.sourceforge.net<mailto:net-snmp-coders@lists.sourceforge.net>> wrote: Hi, I am using Net-SNMP version 5.8 on CentOS 6.8 as a master agent with an AgentX SubAgent. When my AgentX SubAgent takes too much time to respond and times out, the Net-SNMP daemon crashes. I have searched for this issue and found https://github.com/net-snmp/net-snmp/commit/793d596838ff7cb48a73b675d62897c56c9e62df but this seems to be already included in version 5.8. Is this a known issue? Is it already patched? If so, where can I find the patch? Here is the crash dump that I have in my log when this happens: Unknown operation 6 in agentx_got_response *** glibc detected *** /usr/local/netsnmp/netsnmp_base/sbin/snmpd: malloc(): smallbin double linked list corrupted: 0x00005603745c4110 *** ======= Backtrace: ========= /lib64/libc.so.6(+0x3a24675e5e)[0x7fc9d5d72e5e] /lib64/libc.so.6(+0x3a2467a528)[0x7fc9d5d77528] /lib64/libc.so.6(__libc_malloc+0x5c)[0x7fc9d5d77b1c] /lib64/libc.so.6(vasprintf+0x140)[0x7fc9d5d6c340] /usr/local/netsnmp/5.8/lib/libnetsnmp.so.35(snmp_vlog+0x42)[0x7fc9d709ea9c] /usr/local/netsnmp/5.8/lib/libnetsnmp.so.35(snmp_log+0xb9)[0x7fc9d709ebb3] /usr/local/netsnmp/5.8/lib/libnetsnmpagent.so.35(agentx_got_response+0x669)[0x7fc9d78e2586] /usr/local/netsnmp/5.8/lib/libnetsnmp.so.35(+0x5778c)[0x7fc9d707c78c] /usr/local/netsnmp/5.8/lib/libnetsnmp.so.35(snmp_sess_timeout+0x2a5)[0x7fc9d707ca54] /usr/local/netsnmp/5.8/lib/libnetsnmp.so.35(snmp_timeout+0x33)[0x7fc9d707c0f0] /usr/local/netsnmp/netsnmp_base/sbin/snmpd(+0x5081)[0x5603723c3081] /usr/local/netsnmp/netsnmp_base/sbin/snmpd(main+0x19b8)[0x5603723c28ac] /lib64/libc.so.6(__libc_start_main+0x100)[0x7fc9d5d1bd20] /usr/local/netsnmp/netsnmp_base/sbin/snmpd(+0x2b79)[0x5603723c0b79] ======= Memory map: ======== 5603723be000-5603723c5000 r-xp 00000000 fc:05 405833 /usr/local/netsnmp/5.8/sbin/snmpd 5603725c4000-5603725c5000 r--p 00006000 fc:05 405833 /usr/local/netsnmp/5.8/sbin/snmpd 5603725c5000-5603725c6000 rw-p 00007000 fc:05 405833 /usr/local/netsnmp/5.8/sbin/snmpd 56037444d000-5603745ee000 rw-p 00000000 00:00 0 [heap] 7fc9c8000000-7fc9c8021000 rw-p 00000000 00:00 0 7fc9c8021000-7fc9cc000000 ---p 00000000 00:00 0 7fc9ceeaa000-7fc9ceec0000 r-xp 00000000 fc:05 1315920 /lib64/libgcc_s-4.4.7-20120601.so.1 7fc9ceec0000-7fc9cf0bf000 ---p 00016000 fc:05 1315920 /lib64/libgcc_s-4.4.7-20120601.so.1 7fc9cf0bf000-7fc9cf0c0000 rw-p 00015000 fc:05 1315920 /lib64/libgcc_s-4.4.7-20120601.so.1 7fc9cf0c0000-7fc9cf0cd000 r-xp 00000000 fc:05 1310749 /lib64/libnss_files-2.12.so<http://libnss_files-2.12.so> 7fc9cf0cd000-7fc9cf2cc000 ---p 0000d000 fc:05 1310749 /lib64/libnss_files-2.12.so<http://libnss_files-2.12.so> 7fc9cf2cc000-7fc9cf2cd000 r--p 0000c000 fc:05 1310749 /lib64/libnss_files-2.12.so<http://libnss_files-2.12.so> 7fc9cf2cd000-7fc9cf2ce000 rw-p 0000d000 fc:05 1310749 /lib64/libnss_files-2.12.so<http://libnss_files-2.12.so> 7fc9cf2ce000-7fc9d5163000 r--p 00000000 fc:05 402284 /usr/lib/locale/locale-archive 7fc9d5163000-7fc9d5165000 r-xp 00000000 fc:05 1315924 /lib64/libfreebl3.so 7fc9d5165000-7fc9d5364000 ---p 00002000 fc:05 1315924 /lib64/libfreebl3.so 7fc9d5364000-7fc9d5365000 r--p 00001000 fc:05 1315924 /lib64/libfreebl3.so 7fc9d5365000-7fc9d5366000 rw-p 00002000 fc:05 1315924 /lib64/libfreebl3.so 7fc9d5366000-7fc9d53e9000 r-xp 00000000 fc:05 1315917 /lib64/libm-2.12.so<http://libm-2.12.so> 7fc9d53e9000-7fc9d55e8000 ---p 00083000 fc:05 1315917 /lib64/libm-2.12.so<http://libm-2.12.so> 7fc9d55e8000-7fc9d55e9000 r--p 00082000 fc:05 1315917 /lib64/libm-2.12.so<http://libm-2.12.so> 7fc9d55e9000-7fc9d55ea000 rw-p 00083000 fc:05 1315917 /lib64/libm-2.12.so<http://libm-2.12.so> 7fc9d55ea000-7fc9d58c5000 r-xp 00000000 fc:05 403870 /usr/local/ssl/1.0.2s/lib/libcrypto.so.1.0.0 7fc9d58c5000-7fc9d5ac4000 ---p 002db000 fc:05 403870 /usr/local/ssl/1.0.2s/lib/libcrypto.so.1.0.0 7fc9d5ac4000-7fc9d5ae3000 r--p 002da000 fc:05 403870 /usr/local/ssl/1.0.2s/lib/libcrypto.so.1.0.0 Thank you, [http://www.cisco.com/c/dam/m/en_us/signaturetool/images/banners/standard/09_standard_graphic.png] David Moriconi Software Engineer dmori...@cisco.com<mailto:dmori...@cisco.com> Tel: 5143333808 Cisco Systems Canada Co. / Les Systemes Cisco Canada CIE Cisco.com<http://www.cisco.com/web/CA/> [http://www.cisco.com/assets/swa/img/thinkbeforeyouprint.gif] Think before you print. 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