Hello,
On Thu, Sep 13, 2018 at 10:54:47AM -0700, Simon Black wrote:
> I am experiencing a similar problem on Ubuntu 16.0.4. Getting a segfault
> when we are hitting ser2net with many read/writes over local telnet
> connections. We establish telnet connections with python telnetlib.
>
> Sep 13 09:58:02 pqx01-qr1 ser2net[5118]: read error for port 4005: Connection
> reset by peer
> Sep 13 09:58:26 pqx01-qr1 ser2net[5118]: read error for port 4005: Connection
> reset by peer
> Sep 13 09:58:56 pqx01-qr1 kernel: [147157.497692] ser2net[5118]: segfault at
> c ip 0000000000406e4a sp 00007ffedaacb6d0 error 4 in ser2net[400000+11000]
>
> Does this look like the same problem? I could not find a distribution
> of ser2net 3.5.1 for Ubuntu 16.0.4 to see if that fixes the segfault.
> Do you know if this will become available soon? Any other
> suggestions? I would prefer to not have to replace our ser2net
> implementation. It was easy to set up and had been reliable until we
> started running multiple processes on this server to speed up
> automated tests.
I suggest to install systemd-coredump and the debug symbols for ser2net.
If you then retrigger the problem, call:
coredumpctl gdb
and at the gdb shell enter
bt
and report the result. I'd suggest a separate bug report for that.
Concerning an updated ser2net for Ubuntu: Just installing ser2net from
Debian (https://packages.debian.org/buster/amd64/ser2net/download) might
work.
Best regards
Uwe
--
Pengutronix e.K. | Uwe Kleine-König |
Industrial Linux Solutions | http://www.pengutronix.de/ |
