[Xymon] Xymon 4.3.30-1 memory issues and core dumps

[Carl Melgaard]

Hi,

After running for 5 hrs on my new installation on a RH 7.9, xymond has already allocated 11.5GB of memory... Last night it core-dumped multiple times, and threw "Cannot allocate memory" in multiple xymon logfiles, ala "newstrbuffer: Attempt to allocate failed (initialsize=1009956863): Cannot allocate memory". Monitoring 1900 hosts currently - on my primary system I do this with only 4 GB of memory with no issues.

Any idea where I should start to look - it's a terabithia installation.

Heres a couple of the core-dumps gdb'ed:

Reading symbols from /usr/libexec/xymon/xymongen...Reading symbols from /usr/lib/debug/usr/libexec/xymon/xymongen.debug...done.
done.
[New LWP 10035]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
Core was generated by `xymongen --recentgifs --subpagecolumns=4 --report --max-eventtime=1440 --max-ac'.
Program terminated with signal 6, Aborted.
#0  0x00007f8bb64aa387 in __GI_raise (sig=sig at entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:55
55        return INLINE_SYSCALL (tgkill, 3, pid, selftid, sig);
(gdb) bt
#0  0x00007f8bb64aa387 in __GI_raise (sig=sig at entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:55
#1  0x00007f8bb64aba78 in __GI_abort () at abort.c:90
#2  0x0000561f05bf6115 in sigsegv_handler (signum=<optimized out>) at sig.c:57
#3  <signal handler called>
#4  strbuf_addtobuffer (buf=0x0, newtext=0x561f0701db60 "extcombo", ' ' <repeats 192 times>..., newlen=2000) at strfunc.c:115
#5  0x0000561f05bf79b5 in addtobufferraw (buf=<optimized out>, newdata=<optimized out>, bytes=<optimized out>) at strfunc.c:184
#6  0x0000561f05c00d32 in combo_start () at sendmsg.c:908
#7  0x0000561f05bd7ccb in main (argc=6, argv=0x7ffe092839a8) at xymongen.c:706


Reading symbols from /usr/libexec/xymon/xymonnet...Reading symbols from /usr/lib/debug/usr/libexec/xymon/xymonnet.debug...done.
done.
[New LWP 15437]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
Core was generated by `xymonnet --report --ping --checkresponse --dns-timeout=3 --dnslog=/var/log/xymo'.
Program terminated with signal 6, Aborted.
#0  0x00007f96383f0387 in __GI_raise (sig=sig at entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:55
55        return INLINE_SYSCALL (tgkill, 3, pid, selftid, sig);
(gdb) bt
#0  0x00007f96383f0387 in __GI_raise (sig=sig at entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:55
#1  0x00007f96383f1a78 in __GI_abort () at abort.c:90
#2  0x0000000000422d95 in sigsegv_handler (signum=<optimized out>) at sig.c:57
#3  <signal handler called>
#4  strbuf_addtobuffer (buf=0x0, newtext=0x2a99910 "extcombo", ' ' <repeats 192 times>..., newlen=2000) at strfunc.c:115
#5  0x0000000000424635 in addtobufferraw (buf=<optimized out>, newdata=<optimized out>, bytes=<optimized out>) at strfunc.c:184
#6  0x000000000042d9b2 in combo_start () at sendmsg.c:908
#7  0x00000000004064dc in main (argc=6, argv=0x7ffc4e0055d8) at xymonnet.c:2554


Seems like all core-dumps are from xymonnet and xymongen...

Where do I start?

Regards,

Carl Melgaard
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