[WORKAROUND] RRDTool 1.3.2 Segmentation Fault

warnesj · Post by **warnesj** » Fri Sep 12, 2008 9:40 am

Hey all, just thought I'd post something that I ran across today. I updated my rrdtool to 1.3.2-1.fc8 (yes I use packages) and then all of a sudden my graphs stopped appearing. I looked at the graph debug output from the Graph Management section and the RRDTool output was nothing. I went to a command prompt and ran the same RRDTool graph function and was presented a "Segmentation fault" error.

Anyway the problem had to do with the fonts. For now just to get around the problem I had to edit the ./lib/rrd.php file and put a // in front of the return "--font " . strtoupper($type) . ":" . $size . ":" . $font . RRD_NL; line so rrdtool wouldn't try to render fonts. So my line looks like this,

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//return "--font " . strtoupper($type) . ":" . $size . ":" . $font . RRD_NL;

I'm not sure yet what the problem is, but I thought I'd post my work around in case others are having this problem too.

dbunyard · Post by **dbunyard** » Fri Sep 12, 2008 10:08 am

Thanks! I was noticing the same problem on both of my Fedora 9 boxes after the update this morning, and your workaround works great! I don't have the time right now to look farther into this, but I plan to later this afternoon or evening to see if I can figure out what the actual problem is. Thanks again!

Post by **rony** » Fri Sep 12, 2008 11:45 am

Sounds like the package maintainer removed the font support.

WTF.....

dbunyard · Post by **dbunyard** » Fri Sep 12, 2008 12:08 pm

LOL......that really is a WTF.
Actually, the real WTF is that I (we) use packages....

streaker69 · Post by **streaker69** » Fri Sep 12, 2008 12:50 pm

dbunyard wrote:LOL......that really is a WTF.
Actually, the real WTF is that I (we) use packages....

Which is why it's better to compile your own stuff from source instead of relying upon a package that someone else may or may not have built correctly.

Post by **gandalf** » Fri Sep 12, 2008 2:46 pm

Users of rrdtool 1.3.* should, IMHO, closely listen at rrdtool-users mailing list. There have been some bug fixes, especially related to font handling, dramatic performance improvements and stuff in the very recent past.
Distro packages may be behind by some weeks
Reinhard

dbunyard · Post by **dbunyard** » Fri Sep 12, 2008 3:58 pm

gandalf wrote:Users of rrdtool 1.3.* should, IMHO, closely listen at rrdtool-users mailing list. There have been some bug fixes, especially related to font handling, dramatic performance improvements and stuff in the very recent past.
Distro packages may be behind by some weeks
Reinhard

Indeed, I should have subscribed some time ago. I will closely watching it from now on.

atlanticd · Post by **atlanticd** » Sat Sep 13, 2008 9:39 am

Confirmed, this workaround works also on Fedora 9, x86_64.

Btw, before applying the workaround, if you run manually the rrdtool, there is entry in the syslog:

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Sep 13 16:24:10 hok kernel: rrdtool[1596]: segfault at 0 ip 3b180812d1 sp 7fff47071ef8 error 4 in libc-2.8.so[3b18000000+162000]

I'm not so experienced to figure out the problem after this message, but maybe it's useful for somebody who try to debug it.

gthe · Post by **gthe** » Mon Sep 15, 2008 2:20 am

I have that error with last rrdtool, compiled from source on CentOS 5.2

Post by **gandalf** » Tue Sep 16, 2008 12:41 pm

Last rrdtool is now 1.3.3 as of today
Reinhard

gthe · Post by **gthe** » Tue Sep 16, 2008 1:41 pm

And problem has gone !

Cacti

[WORKAROUND] RRDTool 1.3.2 Segmentation Fault

[WORKAROUND] RRDTool 1.3.2 Segmentation Fault

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