dhcpd-4.3.6 works only when launched with -f or -d flag

Mariusz Madej m.madej at xtrack.pl
Tue Mar 5 06:03:04 UTC 2019


Hi,

> So how are you starting dhcpd *as a daemon*.  Systemd?

I start it from console so far, just without -f and -d flags(it goes 
background then). I have a plan to launch hotspot from my own 
configuration tool later.


> What does the command line look like?


/usr/sbin/dhcpd -cf /etc/dhcp/dhcpd.conf


dhcpd.conf file looks like this:


# cat /etc/dhcp/dhcpd.conf
default-lease-time 600;
max-lease-time 7200;

subnet 192.168.5.0 netmask 255.255.255.0 {
    range 192.168.5.10 192.168.5.100;
    option subnet-mask 255.255.255.0;
    option broadcast-address 192.168.5.255;
    option routers 192.168.5.4;
    option domain-name-servers 8.8.8.8, 8.8.4.4, 1.1.1.1;
    option domain-name "mydomain.org";
}

Regards
Mariusz

On 02/03/19 13:16, Bill Shirley wrote:
> So how are you starting dhcpd *as a daemon*.  Systemd?
>
> What does the command line look like?
> [0:root at bb8 ~]$ ps aux | grep dhcpd
> root     20586  0.0  0.0 119524  1004 pts/3    S+ 06:14   0:00 grep 
> --color=auto dhcpd
> dhcpd    22665  0.0  0.0 139796 26832 ?        Ss Feb27   0:13 
> /usr/sbin/dhcpd -f -cf /etc/dhcp/dhcpd.conf -user dhcpd -group dhcpd 
> --no-pid
> dhcpd    31924  0.0  0.0 141492 28936 ?        Ss Feb13   0:24 
> /usr/sbin/dhcpd -f -6 -cf /etc/dhcp/dhcpd6.conf -user dhcpd -group 
> dhcpd --no-pid
>
>
> Bill
>
> On 3/1/2019 1:10 AM, m.madej at xtrack.pl wrote:
>>
>> Hello
>>
>> I try to run dhcpd on my wifi network. I build it using Yocto and 
>> here are a versions of my built system:
>>
>> kernel: 4.14
>>
>> dhcpd: 4.3.6
>>
>> bind: 9.10.6-r0
>>
>> everything is running on cortex a5 core (sama5d27 processor)
>>
>> When i run dhcpd manually with -d or -f option (debug or foreground) 
>> everything seems to work fine. But when dhcpd is started as daemon it 
>> does not work at all.
>>
>> I run strace and it seems it hangs on: "futex(0xb6913098, 
>> FUTEX_WAIT_PRIVATE, 0, NULL"
>>
>> I found a bug with similar behaviour here 
>> https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1551855 but 
>> as i understand it should be fixed in version i use.
>>
>> Does someone have any idea?
>>
>> Thanks in advance
>>
>> Regards
>> Mariusz Madej
>>
>> _______________________________________________
>> dhcp-users mailing list
>> dhcp-users at lists.isc.org
>> https://lists.isc.org/mailman/listinfo/dhcp-users
>
>
> _______________________________________________
> dhcp-users mailing list
> dhcp-users at lists.isc.org
> https://lists.isc.org/mailman/listinfo/dhcp-users

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.isc.org/pipermail/dhcp-users/attachments/20190305/297483b5/attachment-0001.html>


More information about the dhcp-users mailing list