Crash in netopeer2-server

[meghna-doshi]

Hi, We dont have much information as of now, but mostly looks like system was idle and following crash happened: NP2SRV_VERSION 2.1.10

netopeer2-server: /workspace/agent/PRG-Builds/OTA/6.5.0.096/ran_3rdparty/open_source/netconf/libyang/src/parser_xml.c:749: lydxml_envelope: Assertion `xmlctx->status == LYXML_ELEMENT' failed.

crash bt: #0 0x00007f597a785387 in raise () from /usr/lib64/libc.so.6 #1 0x00007f597a786bb8 in abort () from /usr/lib64/libc.so.6 #2 0x00007f597a77e1a6 in __assert_fail_base () from /usr/lib64/libc.so.6 #3 0x00007f597a77e252 in _assert_fail () from /usr/lib64/libc.so.6 #4 0x00007f597addd27f in lydxml_envelope (xmlctx=0x7f5968009e50, name=0x7f597aeb1e68 "rpc", uri=0x7f597aeb1e40 "urn:ietf:params:xml:ns:netconf:base:1.0", value=0 '\000', envp=0x7f5975156af0) at /workspace/agent/PRG-Builds/OTA/6.5.0.096/ran_3rdparty/open_source/netconf/libyang/src/parser_xml.c:749 #5 0x00007f597addd59f in lydxml_env_netconf_rpc (xmlctx=0x7f5968009e50, envp=0x7f5975156af0, int_opts=0x7f5975156a64, close_elem=0x7f5975156a60) at /workspace/agent/PRG-Builds/OTA/6.5.0.096/ran_3rdparty/open_source/netconf/libyang/src/parser_xml.c:821 #6 0x00007f597addec27 in lyd_parse_xml (ctx=0xc4da00, ext=0x0, parent=0x0, first_p=0x7f5975156af8, in=0x7f59680066f0, parse_opts=327680, val_opts=0, data_type=LYD_TYPE_RPC_NETCONF, envp=0x7f5975156af0, parsed=0x7f5975156b00, lydctx_p=0x7f5975156b18) at /workspace/agent/PRG-Builds/OTA/6.5.0.096/ran_3rdparty/open_source/netconf/libyang/src/parser_xml.c:1414 #7 0x00007f597adc7f88 in lyd_parse_op (ctx=0xc4da00, ext=0x0, parent=0x0, in=0x7f59680066f0, format=LYD_XML, data_type=LYD_TYPE_RPC_NETCONF, tree=0x7f5968006910, op=0x7f5968006918) at /workspace/agent/PRG-Builds/OTA/6.5.0.096/ran_3rdparty/open_source/netconf/libyang/src/tree_data.c:561 #8 0x00007f597adc82cf in lyd_parse_op (ctx=0xc4da00, parent=0x0, in=0x7f59680066f0, format=LYD_XML, data_type=LYD_TYPE_RPC_NETCONF, tree=0x7f5968006910, op=0x7f5968006918) at /workspace/agent/PRG-Builds/OTA/6.5.0.096/ran_3rdparty/open_source/netconf/libyang/src/tree_data.c:628 #9 0x00007f597b83c926 in nc_ps_poll () from /workspace/agent/PRG-Builds/OTA/6.5.0.096/ran_3rdparty/open_source/netconf/bin/du/usr/local/lib64/libnetconf2.so.3.1.3 #10 0x000000000040c61e in worker_thread (arg=0xdcce40) at /workspace/agent/PRG-Builds/OTA/6.5.0.096/ran_3rdparty/open_source/netconf/netopeer2/src/main.c:1029 #11 0x00007f597b0f2ea5 in start_thread () from /usr/lib64/libpthread.so.0 #12 0x00007f597a84db0d in epoll_pwait () from /usr/lib64/libc.so.6 #13 0x0000000000000000 in ?? ()

Any idea what is this crash and what could have caused this?

[michalvasko]

I think I may have fixed the problem, it could have occurred if the client sent some invalid XML NETCONF message.

[meghna-doshi]

Ok thanks Michal. Is this fix delivered to devel branch also?

[michalvasko]

The commit is referenced, it is only in the libyang devel branch for now.