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

[m.madej at xtrack.pl]

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
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