Tinc node is crashing after some days or weeks. How to debug?

[Håvard Rabbe]

Hi
I have not tried systemd-coredump yet but I found something strange in my syslog file.

Like this message in the en of the log file:
tincd[10322]: segfault at 7fffb3180000 ip 00007ff7937f11c2 sp 00007fffb317dd68 error 4 in libc-2.23.so[7ff7936a3000+1c0000]

There is more in the attached syslog file. Any clues?



Best Regards,

Håvard Rabbe


> On 14 Feb 2019, at 02:27, Hamish Moffatt <hamish at moffatt.email> wrote:
> 
> On 13/2/19 12:28 am, Tomasz Chmielewski wrote:
>> On 2019-02-12 22:12, Håvard Rabbe wrote:
>>> Hi
>>> Im running tinc 1.1pre17. My problem is that my tinc nodes
>>> occasionally crashes. When it crashes the tinc node is not running
>>> anymore. Time between failure can be sometimes days or weeks.
>>> 
>>> Do anyone here have a proposal for how to debug and get this problem solved?
>> 
>> I assume it doesn't produce anything in the log?
>> 
>> Try strace? 
> 
> 
> A coredump would be more interesting and wouldn't affect performance. If you're running tinc from systemd, you can install systemd-coredump.
> 
> 
> Hamish
> 
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