[Dnsmasq-discuss] segfaults in 2.39 after a while

Joe Landman landman at scalableinformatics.com
Sat Jun 16 23:55:43 BST 2007

Problem of my own making.

Joe Landman wrote:
> I am having an issue where 2.39 segfaults right away upon restart.  It 
> happens after a while with a booted system.  I restart dnsmasq a few 
> times before this, then it refuses to restart.  Running it with the -d 
> option doesn't help.  One of my scripts forces a restart of dnsmasq 
> after a new DHCP address has been registered, via the scripting method. 
>   Instead of a restart, should I simply send a SIGHUP?
> Will try 2.38 and see if that works.  Also will test 2.40.

In the script file one calls during dhcp address operations, it is a 
particularly bad idea to restart the server.  Sending a HUP is fine, but 
turning off the parent from the child is in a subshell is a Bad Idea (tm).

Replaced the call in my script from /etc/init.d/dnsmasq restart to 
killall -HUP dnsmasq and it works without causing the segfault.

> Joe


Joseph Landman, Ph.D
Founder and CEO
Scalable Informatics LLC,
email: landman at scalableinformatics.com
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phone: +1 734 786 8423
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