segfault

[kiaj]

here is debug info

[07-Oct-2013 09:21:07.142] [DEBUG] DCTable::columnIdFromName(): column name VM name added to cache, ID=2
[07-Oct-2013 09:21:07.142] [DEBUG] {0x804ded0} bind at pos 1: "1482969814819930112"
[07-Oct-2013 09:21:07.142] [DEBUG] {0x804ded0} bind at pos 2: "2"
Segmentation fault

any answers ?

[kiaj]

helps only removing that nodes from mysql manualy, can anybody said did dci table function work or not ?

[victor]

Hi!

Was this SNMP or agent table? Looks very similar to https://www.netxms.org/forum/configuration/netxms-server-crash-1-2-9.

If you built server from sources, try to replace line 389 in file src/server/core/dctable.cpp which currently should looks like

if (_tcslen(s) < MAX_DB_STRING)

with

if ((s == NULL) || (_tcslen(s) < MAX_DB_STRING))

and rebuild server.

Best regards,
Victor

[kiaj]

hello, yes it is snmp table, but as i understand the error happend when apply snmp table with some mistakes, for now i compile server from source and apply correct table and everything work, i will testing more and when the error will happend i'll try your issue, and sorry for my bad english

[kiaj]

i tried recompile with changings, that is not help, server cruch after activate table, see attachments

maybe problem is in the oid's of vpn tunnel ifindex interface, it is changed after any reconnect or some time ago after time to live ends.

---

[victor]

Hi!

Can you provide me a stack trace from debugger?

Best regards,
Victor

[kiaj]

trace with -D9 in attachment.

---

strace.txt

[victor]

Are you sure you apply patch and rebuild server correctly? It crashes in same place as if it was not patched. How line 389 in src/server/core/dctable.cpp looks like now?

Best regards,
Victor

[kiaj]

i was change this string in file

if ((s == NULL) || (_tcslen(s) < MAX_DB_STRING))

then

./reconf
./configure --with-server --with-agent
./make
./make install

---

[kiaj]

shit, i do wrong comment in file :((( sorry, one more time try

[kiaj]

i replace code and everything is the same here stack trace

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0xb70ffb70 (LWP 10813)]
0xb7a15d03 in strlen () from /lib/libc.so.6
(gdb) bt
#0  0xb7a15d03 in strlen () from /lib/libc.so.6
#1  0xb7f1dec1 in DCTable::processNewValue (this=0x81273a0, nTimeStamp=1381732962, value=0xb480c4f8) at dctable.cpp:389
#2  0xb7f21120 in DataCollectionTarget::processNewDCValue (this=0x8128850, dco=0x81273a0, currTime=1381732962, value=0xb480c4f8) at dctarget.cpp:366
#3  0xb7f0d1af in DataCollector (pArg=0x0) at datacoll.cpp:254
#4  0xb7c38830 in start_thread () from /lib/libpthread.so.0
#5  0xb7a7c15e in clone () from /lib/libc.so.6