dhcpcd-discuss

On 10/11/2020 09:11, Roy Marples wrote:
> Hi Matthew
>
> On 09/11/2020 19:45, Matthew Clarkson wrote:
> > After applying the patch, I am able to dump the lease if dhcpcd is configured 
> > with --disable-privsep.
> >
> > With privsep enabled I am seeing the message "main: control_send: Broken pipe" 
> > the first time attempting to dump the lease and "dhcpcd is not running 
> > message" on subsequent attempts.
> >
> > Attached is strace of the first attempt showing EPIPE error when trying to 
> > write to the .unpriv socket, a listing of the run directory, and strace of the 
> > second dumplease attempt showing ECONNREFUSED when trying to connect to the 
> > socket (presumably because the first write attempt failed.
> >
> > Any thoughts are appreciated.
>
> Sounds like the master dhcpcd process crashed!
> This is bad. I can't even replicate your problem.
>
> Could you describe which OS you are using please?
>
> To get more debug info we will probably need to strace -f the main dhcpcd 
> process rather than the calling client. FWIW, this works fine for me on 
> NetBSD-current and Devuan (pretty fresh).

I wonder if it's a new SECCOMP failure.
It works fine for me on AMD64. What CPU/libc/distro are you seeing this on?

Try adding -DSECCOMP_FILTER_DEBUG to CPPFLAGS and maybe dhcpcd can log more.

Roy