[Dnsmasq-discuss] DNSMasq stops working and runs at 100%

[Conrad Kostecki]

> -----Ursprüngliche Nachricht-----
> Von: Dnsmasq-discuss [mailto:dnsmasq-discuss-
> bounces at lists.thekelleys.org.uk] Im Auftrag von Matthias Andree
> Gesendet: Dienstag, 3. Juni 2014 22:04
> An: DNSMasq Mailingliste
> Betreff: Re: [Dnsmasq-discuss] DNSMasq stops working and runs at 100%
> 
> Am 03.06.2014 19:20, schrieb Conrad Kostecki:
> > Jun 03 01:23:29 [dnsmasq-dhcp] RTR-ADVERT(tap0) XXXX:XX:XXXX:XX7b::
> > old prefix
> > <-- At this point nothing is being logged any more.
> >
> > I don't know, how to debug this problem for me? Somebody has some
> idea?
> 
> Can you recompile with debug info, provoke the bug, then attach a debugger
> (GDB) and obtain a stack backtrace?
> 
> To obtain the trace, run (replace /path/to by /usr/local/sbin or wherever it
> ends up in Gentoo):
> 
> 	gdb /path/to/dnsmasq $(pidof dnsmasq)
> 
> Wait until GDB has started
> 
> then type:
> 
> 	backtrace full

Here we go. I've recompiled DNSMasq with "make CFLAGS=-g". I hope this is correct? At least gdb finds some debug symbols..
There is an upload of the "backtrace full" output: http://pastebin.com/4gnJx3Lp

I've now managed to reproduce this situation whenever I want.
I've just to simulate, when pppd loose the connection (e.g. disconnect modem for a few sec).

Conrad