[AGENT++] Segfault in AgentX subagent

[Frank Fock]

Hi Steven,

Please check out AgentX++ 2.1.0 and AGENT++ 4.1.0. Both together include several bug-fixes about threading support. The stack trace could be related to the APP-49 bug, if the request that was processed was a GETBULK or a SET request. 

Hope this helps.

Best regards,
Frank


> On 23. Jan 2018, at 09:27, MATTY, Steven [UK] <steven.matty at airbus.com> wrote:
> 
> Hi,
> 
> I appreciate the lack of useful info here, but I'm seeing a semi-regular segfault in a SubAgent which typically happens when another SubAgent is starting up.
> The backtrace from gdb is here, unfortunately there aren't any useful symbol info so I can't inspect variables, locals etc. I guess I'm emailing this in the hope
> someone has had a similar experience! We're running 32-bit 'buildroot' Linux, kernel 3.16.1
> 
> Thread 1 (Thread 0xb5931b40 (LWP 1857)):
> #0  0xb6870d63 in Snmp_pp::Pdu::operator=(Snmp_pp::Pdu const&) () from /opt/Platform/ThirdParty/lib/libsnmp++.so.33
> #1  0xb686bf0c in Snmp_pp::Pdu::Pdu(Snmp_pp::Pdu const&) () from /opt/Platform/ThirdParty/lib/libsnmp++.so.33
> #2  0xb67f7a9a in Agentpp::Pdux::Pdux(Agentpp::Pdux const&) () from /opt/Platform/ThirdParty/lib/libagent++.so.40
> #3  0xb674de6b in Agentpp::AgentXPdu::AgentXPdu(Agentpp::AgentXPdu const&) () from /opt/Platform/ThirdParty/lib/libagentx++.so.20
> #4  0xb6754a8b in Agentpp::AgentXRequestList::answer(Agentpp::Request*) () from /opt/Platform/ThirdParty/lib/libagentx++.so.20
> #5  0xb67f6edc in Agentpp::Mib::finalize(Agentpp::Request*) () from /opt/Platform/ThirdParty/lib/libagent++.so.40
> #6  0xb677349f in Agentpp::SubAgentXMib::do_process_request(Agentpp::Request*) () from /opt/Platform/ThirdParty/lib/libagentx++.so.20
> #7  0xb6816b9a in Agentpp::MibTask::run() () from /opt/Platform/ThirdParty/lib/libagent++.so.40
> #8  0xb6815d4d in Agentpp::TaskManager::run() () from /opt/Platform/ThirdParty/lib/libagent++.so.40
> #9  0xb68151a7 in Agentpp::thread_starter(void*) () from /opt/Platform/ThirdParty/lib/libagent++.so.40
> #10 0xb63d10b5 in start_thread () from /lib/libpthread.so.0
> #11 0xb631979e in clone () from /lib/libc.so.6
> 
> Thanks,
> 
> Steve
> 
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