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crash log on searches using cidrmatch.

Splunk Employee
Splunk Employee

searches that utilize 'cidrmatch' are generating a number of crash logs at the bunny farm today.

[build 123586] 2012-05-07 15:58:43 
Received fatal signal 6 (Aborted). 
Cause: 
Signal sent by PID 22949 running under UID 0. 
Crashing thread: Main Thread 
Registers: 
RIP: [0x00007FCD0F366A75] gsignal + 53 (/lib/libc.so.6) 
RDI: [0x00000000000059A5] 
RSI: [0x00000000000059A5] 
RBP: [0x00007FCD0F47A17A] 
RSP: [0x00007FFFCDE9E058] 
RAX: [0x0000000000000000] 
RBX: [0x00007FFFCDEA179C] 
RCX: [0xFFFFFFFFFFFFFFFF] 
RDX: [0x0000000000000006] 
R8: [0x00007FCD10CB6700] 
R9: [0x00007FCD0F47C0D1] 
R10: [0x0000000000000008] 
R11: [0x0000000000000206] 
R12: [0x0000000001195085] 
R13: [0x0000000001332AC0] 
R14: [0x00007FCD0F47A17A] 
R15: [0x0000000000000084] 
EFL: [0x0000000000000206] 
TRAPNO: [0x0000000000000000] 
ERR: [0x0000000000000000] 
CSGSFS: [0x0000000000000033] 
OLDMASK: [0x0000000000000000] 

OS: Linux 
Arch: x86-64 

Backtrace: 
[0x00007FCD0F36A5C0] abort + 384 (/lib/libc.so.6) 
[0x00007FCD0F35F941] __assert_fail + 241 (/lib/libc.so.6) 
[0x0000000000D13800] _ZN22SPathFunctionEvaluator11outputFieldERK3StrS2_ + 0 (s 
plunkd) 
[0x0000000000D0EAB4] _ZNK17CidrMatchFunction2goEP16EvaluatorContext + 148 (spl 
unkd) 
[0x0000000000C8A8E3] _ZNK21FunctionEvaluatorNode8evaluateEP16EvaluatorContext 
+ 67 (splunkd) 
[0x0000000000C8D346] _ZNK10ORFunction8evaluateEP16EvaluatorContext + 38 (splun 
kd) 
Linux / sc9-splunk-l2 / 2.6.32-32-generic / #62-Ubuntu SMP Wed Apr 20 21:52:38 
UTC 2011 / x86_64 
/etc/debian_version: squeeze/sid 
glibc version: 2.11.1 
glibc release: stable 
Threads running: 2 
argv: [splunkd search --id=remote_sc9-splunk-security-search_1336431517.68 --max 
buckets=0 --ttl=60 --maxout=0 --maxtime=0 --lookups=1 --streaming --outCsv=true 
--user=sowings --pro --roles=admin:power:user] 
terminating...

Anyone else observing similar crashes with 'cidrmatch' in 4.3.x OR is it just my farm?

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Re: crash log on searches using cidrmatch.

Splunk Employee
Splunk Employee

It isn't just you, this is a known issue:

http://docs.splunk.com/Documentation/Splunk/latest/releasenotes/KnownIssues

This is being tracked as SPL-49828. The good news is there is a workaround:

All you need to do is replace:

'cidrmatch(A, B)'

with:

'if(typeof(B, "String"), cidrmatch(A, B), null())'

View solution in original post

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Re: crash log on searches using cidrmatch.

Splunk Employee
Splunk Employee

thanks jbsplunk, hares to you!!

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