openvpn crashes under high load

[Daniel Berntsson]

Binary package hint: openvpn

Ubuntu 8.04.2
openvpn_2.1~rc11-1ubuntu3_amd64

With a couple of hundred connections and 100% CPU or close to it openvpn
crashed leaving the following line in the log:

Apr 19 05:46:25 STRM002 ovpn-server[24857]: Assertion failed at multi.h:409

This has happened twice in about three weeks.

ProblemType: Bug
Architecture: amd64
Date: Sun Apr 19 08:27:12 2009
DistroRelease: Ubuntu 8.04
Package: openvpn 2.1~rc11-1ubuntu3
PackageArchitecture: amd64
ProcEnviron:
 PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: openvpn
Uname: Linux 2.6.24-19-server x86_64
UnreportableReason: This is not a genuine Ubuntu package

[wayne (wayne-flashmedia)]

Did you report this to the openvpn guys?

[Daniel Berntsson (db-lysator)]

Nope.

[Thierry Carrez (ttx)]

You're apparently running Ubuntu 8.04.2 with openvpn_2.1~rc11-1ubuntu3

This is not a supported configuration. You installed packages built for a later version of Ubuntu (the Jaunty package) into 8.04.

Please reopen this bug if you can reproduce it in a pure 8.04.2 (or Jaunty) configuration.

[sympaticon (g-l)]

I reproduce this error on Ubuntu 9.04 with OpenVPN 2.1_rc11

These are 2 instances of the logs when openvpn server crashes. It's worth noting that it happens in the same second and just after disconnecting of management interface. The only operation that has been done in management interface session was killing one client.

Mon Jul 26 16:44:09 2010 MANAGEMENT: Client connected from 127.0.0.1:54321
Mon Jul 26 16:44:09 2010 client04595/x.x.x.x:8984 SIGTERM[soft,] received, client-instance exiting
Mon Jul 26 16:44:09 2010 MANAGEMENT: Client disconnected
Mon Jul 26 16:44:09 2010 Assertion failed at multi.h:409
Mon Jul 26 16:44:09 2010 Exiting

Mon Jul 26 13:54:57 2010 MANAGEMENT: Client connected from 127.0.0.1:54321
Mon Jul 26 13:54:57 2010 client04731/x.x.x.x:9694 SIGTERM[soft,] received, client-instance exiting
Mon Jul 26 13:54:57 2010 MANAGEMENT: Client disconnected
Mon Jul 26 13:54:57 2010 Assertion failed at multi.h:409
Mon Jul 26 13:54:57 2010 Exiting

[Thierry Carrez (ttx)]

@sympaticon: any chance you could reproduce that on Lucid (10.04 ?). There have been a lot of fixes (especially on the management interface) on its way to 2.0 status.

[yangzhe1990 (yangzhe1990)]

Hi all, I'm from Debian Unstable using openvpn 2.1.0-2, and I reproduced this bug.

The same error message: "Assertion failed at multi.h" but ont line 409, I forgetted it.
It happened when I was killing a 20Mbps user.

[Joshua Powers (powersj)]

Thank you for taking the time to report this bug. In an effort to keep
an up-to-date and valid list of bugs to work on, I have reviewed this
report verifying it still requires effort and occurs on a supported
version of Ubuntu.

I am marking this bug incomplete due to the lack of responses or
updated information stating this still affects currently supported
releases. If we received information making this bug actionable again
I believe we could add it back to the queue for the server team to
review.

It is unfortunate that we were unable to resolve this defect, however,
there appears to be no further action possible at this time. I am
therefore moving the bug to 'Incomplete'. If you disagree or have
new information, we would be grateful if you could please add a comment
stating why and then change the status of the bug to 'New'.

[Launchpad Janitor (janitor)]

[Expired for openvpn (Ubuntu) because there has been no activity for 60 days.]