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ras1 · Beginner Joined: 31 Aug 2003 Posts: 9

hello folks,

I just recently switched from rh 9 to fedora core 1, and I can't get netmrg to run on this rascal. netmrg_cron.sh segfaults everytime. Not sure what is causing it. I have included some of the output of strace right before it segfaults.

mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xbf3ad000
read(3, "# Locale name alias data base.\n#"..., 4096) = 2601
read(3, "", 4096) = 0
close(3) = 0
munmap(0xbf3ad000, 4096) = 0
open("/usr/share/locale/en_US.UTF-8/LC_MESSAGES/libc.mo", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/usr/share/locale/en_US.utf8/LC_MESSAGES/libc.mo", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/usr/share/locale/en_US/LC_MESSAGES/libc.mo", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/usr/share/locale/en.UTF-8/LC_MESSAGES/libc.mo", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/usr/share/locale/en.utf8/LC_MESSAGES/libc.mo", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/usr/share/locale/en/LC_MESSAGES/libc.mo", O_RDONLY) = -1 ENOENT (No such file or directory)
write(2, "/usr/local/bin/netmrg_cron.sh: l"..., 96/usr/local/bin/netmrg_cron.sh: line 31: 11647 Segmentation fault $netmrg >$output 2>$error
) = 96

thanks in advance for you time,

--ras

balleman · Site Admin Joined: 20 Jan 2003 Posts: 282

Hmm... it looks as though bash is segfaulting when trying to run the script? That seems really odd to me.

Could you try running netmrg-gatherer manually to see if that works?

ras1 · Beginner Joined: 31 Aug 2003 Posts: 9

here is the end output of strace ./netmrg-gatherer:

old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xbf533000
set_thread_area({entry_number:-1 -> 6, base_addr:0xbf5332a0, limit:1048575, seg_32bit:1, contents:0, read_exec_only:0, limit_in_pages:1, seg_not_present:0, useable:1}) = 0
munmap(0xbf537000, 16803) = 0
set_tid_address(0xbf5332e8) = 29600
rt_sigaction(SIGRTMIN, {0x2fa620, [], SA_RESTORER|SA_SIGINFO, 0x300f10}, NULL, 8) = 0
rt_sigprocmask(SIG_UNBLOCK, [RTMIN], NULL, 8) = 0
getrlimit(RLIMIT_STACK, {rlim_cur=10240*1024, rlim_max=RLIM_INFINITY}) = 0
brk(0) = 0x811b000
brk(0x813c000) = 0x813c000
brk(0) = 0x813c000
futex(0x269764, FUTEX_WAKE, 2147483647) = 0
stat64("/usr/local/etc/netmrg.xml", {st_mode=S_IFREG|0644, st_size=788, ...}) = 0
stat64("/usr/local/etc/netmrg.xml", {st_mode=S_IFREG|0644, st_size=788, ...}) = 0
stat64("/usr/local/etc/netmrg.xml", {st_mode=S_IFREG|0644, st_size=788, ...}) = 0
open("/usr/local/etc/netmrg.xml", O_RDONLY) = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=788, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xbf53b000
read(3, "<netmrg>\n\t<database>\n\t\t<host>loc"..., 16384) = 788
read(3, "", 12288) = 0
_llseek(3, 0, [788], SEEK_CUR) = 0
read(3, "", 4096) = 0
read(3, "", 4096) = 0
close(3) = 0
munmap(0xbf53b000, 4096) = 0
--- SIGSEGV (Segmentation fault) @ 0 (0) ---
+++ killed by SIGSEGV +++

balleman · Site Admin Joined: 20 Jan 2003 Posts: 282

If you compiled from source, did you try recompiling after upgrading to Fedora?

ras1 · Beginner Joined: 31 Aug 2003 Posts: 9

Yeah, I first tried to install the rpm but it was complaining that it needed rrdtool installed (which I compiled and put int /bin/rrdtool). I then proceeded to compile the latest netmrg and it gave me those errors when I ran it. After that I tried to compile an older version netmrg-0.10pre2 because that's whath I was running on rh8 but I got the same error. It could just be something dumb that fedora has done (wouldn't surprise me), but I really like netmrg so I thought I wouold let you folks know.

--ras

balleman · Site Admin Joined: 20 Jan 2003 Posts: 282

Not sure what changed in this version of libxml2, but it seems to be the culprit.

Try editing your settings.cpp file, line 93:

Old line:

balleman · Site Admin Joined: 20 Jan 2003 Posts: 282

We'll continue to discuss this issue here, but it is now also being tracked as bug#90.

ras1 · Beginner Joined: 31 Aug 2003 Posts: 9

Changing that line in settings.cpp fixed the problem :) Thanks folks for your quick response, and keep up the good work with netmrg!

--ras

silfreed · Posted: Mon Nov 17, 2003 9:05 pm Post subject:

Just in case people are still watching this thread, I wanted to let everyone know that I've rolled a new RPM for 0.10 to address this problem. I've also rolled an rrdtool package for FC1 that can be found in the contribs section of our page.
You can find all the packages here: http://www.netmrg.net/download.php

-Doug

presidency

Hello,

I just discovered NetMRG when I was trying to find some GUI for MRTG.

*Preamble*
I downloaded the netmrg-0.13.tar.gz and ran "./configure" and "make" - the package compiled without any problems since I had all the required libraries / dependencies on my Redhat Fedora Core 1 system. However, I actually installed the NetMRG binary RPM "/binary/netmrg-0.13-1.fc1.i386.rpm" package instead of running "make install". RRDtool 1.0.46

*Status*

NetMRG Web GUI works without any problems and I can get the graphs. However, when the "/usr/bin/netmrg_cron.sh" is run a 2 minute intervals from cron, I get the same error message that a previous post was about in this list ->

"/usr/bin/netmrg_cron.sh: line 31: 11700 Segmentation fault $netmrg >$output
2>$error"

I looked for the "settings.cpp" file as directed in the earlier post, and the "RPM" package had not installed any file with that name. However, I did find that file in the NetMRG src directory ->"netmrg-0.13/src". Should I replace the line as instructed in the earlier post, recompile NetMRG from source again and re-install using "make install"?

The "settings.cpp" file already had the replaced line (line 93) mentioned in the earlier post. What do I do now, do a "make install" after compiling from the netmrg-0.13 source?

Thank you for your time and help.

silfreed

presidency

Following is the output of "/usr/bin/netmrg-gatherer -sm" . It looks like it is running fine, however, when I run the "/usr/binnetmrg_cron.sh" script, thats when the error occurs and emailed.

[mhkhan@aparajita]# /usr/bin/netmrg-gatherer -sm
NetMRG starting.
Start time is 1078115412
Creating Lockfile.
Initializing SNMP library.
Initializing RRDTOOL pipe.
[Dev: 0001] Starting device thread.
[Dev: 0001] MySQL connection established.
[Dev: 0001] Template Linux Box / <Field Omitted>
[Dev: 0001] SNMP Uptime is 12960546
[Dev: 0001] [Sub: 0001] Starting Subdevice.
[Dev: 0001] [Sub: 0001] [Mon: 0009] Starting Monitor.
[Dev: 0001] [Sub: 0001] [Mon: 0009] Value: 76
[Dev: 0001] [Sub: 0001] [Mon: 0008] Starting Monitor.
[Dev: 0001] [Sub: 0001] [Mon: 0008] Value: 1
[Dev: 0001] [Sub: 0001] [Mon: 0001] Starting Monitor.
[Dev: 0001] [Sub: 0001] [Mon: 0001] Value: 538408
[Dev: 0001] [Sub: 0001] [Mon: 0002] Starting Monitor.
[Dev: 0001] [Sub: 0001] [Mon: 0002] Value: 45270
[Dev: 0001] [Sub: 0001] [Mon: 0003] Starting Monitor.
[Dev: 0001] [Sub: 0001] [Mon: 0003] Value: 95827
[Dev: 0001] [Sub: 0001] [Mon: 0004] Starting Monitor.
[Dev: 0001] [Sub: 0001] [Mon: 0004] Value: 0.23
[Dev: 0001] [Sub: 0001] [Mon: 0005] Starting Monitor.
[Dev: 0001] [Sub: 0001] [Mon: 0005] Value: 0.11
[Dev: 0001] [Sub: 0001] [Mon: 0006] Starting Monitor.
[Dev: 0001] [Sub: 0001] [Mon: 0006] Value: 0.03
[Dev: 0001] [Sub: 0001] [Mon: 0011] Starting Monitor.
[Dev: 0001] [Sub: 0001] [Mon: 0011] Value: 951616
[Dev: 0001] [Sub: 0001] [Mon: 0010] Starting Monitor.
[Dev: 0001] [Sub: 0001] [Mon: 0010] Value: 4408
[Dev: 0001] [Sub: 0001] [Mon: 0007] Starting Monitor.
[Dev: 0001] [Sub: 0001] [Mon: 0007] Value: 3
[Dev: 0001] [Sub: 0002] Starting Subdevice.
[Dev: 0001] [Sub: 0002] Interface subdevice has no interface parameters.
[Dev: 0001] [Sub: 0002] Subdevice aborted due to previous errors.
[Dev: 0001] [Sub: 0003] Starting Subdevice.
[Dev: 0001] [Sub: 0003] Disk subdevice has no disk parameters.
[Dev: 0001] [Sub: 0003] Subdevice aborted due to previous errors.
[Dev: 0001] [Sub: 0004] Starting Subdevice.
[Dev: 0001] [Sub: 0004] [Mon: 0017] Starting Monitor.
[PASSIVE] Last: 0, Now: 1
[Dev: 0001] [Sub: 0004] [Mon: 0017] Value: 249409005
[Dev: 0001] [Sub: 0004] [Mon: 0018] Starting Monitor.
[Dev: 0001] [Sub: 0004] [Mon: 0018] Value: 47093156
[Dev: 0001] [Sub: 0005] Starting Subdevice.
[Dev: 0001] [Sub: 0005] [Mon: 0019] Starting Monitor.
[Dev: 0001] [Sub: 0005] [Mon: 0019] Value: 145248251
[Dev: 0001] [Sub: 0005] [Mon: 0020] Starting Monitor.
[Dev: 0001] [Sub: 0005] [Mon: 0020] Value: 310129985
[Dev: 0001] [Sub: 0006] Starting Subdevice.
[Dev: 0001] [Sub: 0006] [Mon: 0021] Starting Monitor.
[Dev: 0001] [Sub: 0006] [Mon: 0021] Value: U
[Dev: 0001] [Sub: 0006] [Mon: 0022] Starting Monitor.
[Dev: 0001] [Sub: 0006] [Mon: 0022] Value: U
[Dev: 0001] [Sub: 0007] Starting Subdevice.
[Dev: 0001] [Sub: 0007] [Mon: 0023] Starting Monitor.
[Dev: 0001] [Sub: 0007] [Mon: 0023] Value: U
[Dev: 0001] [Sub: 0007] [Mon: 0024] Starting Monitor.
[Dev: 0001] [Sub: 0007] [Mon: 0024] Value: U
[Dev: 0001] [Sub: 0008] Starting Subdevice.
[Dev: 0001] [Sub: 0008] [Mon: 0025] Starting Monitor.
[Dev: 0001] [Sub: 0008] [Mon: 0025] Value: U
[Dev: 0001] [Sub: 0008] [Mon: 0026] Starting Monitor.
[Dev: 0001] [Sub: 0008] [Mon: 0026] Value: U
[Dev: 0001] Ending device thread.
Thread Ended.
[PASSIVE] Last: 1, Now: 0
Closed MySQL connection.
Runtime: 0
Closed RRDTOOL pipe.
Cleaned up SNMP.
[mhkhan@aparajita]#

Thanks,

mhkhan.

balleman · Site Admin Joined: 20 Jan 2003 Posts: 282

That's really odd. Essentially, that script is just a wrapper for netmrg-gatherer. Try running netmrg-gatherer with no options, and see if it segfaults then.

presidency

Following is the output if I only run netmrg-gatherer:

[mhkhan@aparajita]# netmrg-gatherer
NetMRG starting.
[Dev: 0001] Starting device thread.
[Dev: 0001] [Sub: 0002] Interface subdevice has no interface parameters.
[Dev: 0001] [Sub: 0002] Subdevice aborted due to previous errors.
[Dev: 0001] [Sub: 0003] Disk subdevice has no disk parameters.
[Dev: 0001] [Sub: 0003] Subdevice aborted due to previous errors.
[Dev: 0001] Ending device thread.
Thread Ended.
[mhkhan@aparajita]#

Any ideas? I am pretty much stuck .... Thanks

silfreed