dhcpcd-discuss

Hi,

I've been receiving some bugreports from netctl users that use the combination:
netctl + ifplugd + dhcpcd
The role of netctl is rather minimal. It provides a service file and a
script for ifplugd. The issues started with dhcpcd 9, so I think the
bug might be related to dhcpcd. One user once managed to get very
similar issues with using just dhpcd.

When suspending to RAM and resuming, dhcpcd reports a pipe error. The
following journal segment is taken from the netctl bug report
(https://bugs.archlinux.org/task/67382):

ago 07 12:20:10 stryke dhcpcd[2221]: sending signal TERM to pid 1312
ago 07 12:20:10 stryke dhcpcd[2221]: waiting for pid 1312 to exit
ago 07 12:20:10 stryke dhcpcd[1312]: script_runreason: Resource
temporarily unavailable
ago 07 12:20:10 stryke dhcpcd[1312]: eth0: deleting address
fe80::145e:4e49:22aa:5f8d
ago 07 12:20:10 stryke dhcpcd[1312]: ipv6_deleteaddr: Broken pipe
ago 07 12:20:10 stryke dhcpcd[1312]: arp_free: Broken pipe
ago 07 12:20:10 stryke dhcpcd[1312]: eth0: ipv4_deladdr: Broken pipe
ago 07 12:20:10 stryke dhcpcd[1312]: eth0: deleting route to 192.168.1.0/24
ago 07 12:20:10 stryke dhcpcd[1312]: rt_delete: Broken pipe
ago 07 12:20:10 stryke dhcpcd[1312]: eth0: deleting default route via
192.168.1.254
ago 07 12:20:10 stryke dhcpcd[1312]: rt_delete: Broken pipe
ago 07 12:20:10 stryke dhcpcd[1312]: script_runreason: Broken pipe
ago 07 12:20:10 stryke dhcpcd[1312]: main: control_stop: Broken pipe
ago 07 12:20:10 stryke dhcpcd[1312]: ps_dostop: Broken pipe
ago 07 12:20:10 stryke dhcpcd[1312]: dhcpcd exited
ago 07 12:20:10 stryke dhcpcd[1313]: ps_root_recvmsg: Connection refused
ago 07 12:20:10 stryke dhcpcd[1313]: ps_root_recvmsg: Connection refused

If this is a known problem, I would like to know what netctl can do to
prevent it.

Regards,
- Jouke