Ubuntu
isc-dhcp package

  1. Bug #1556175
  2. Comment #2

Comment 2 for bug 1556175

Revision history for this message
Martin Pitt (pitti) wrote : Re: networking.service hangs on shutdown -- ifdown fails to kill dhclient

strace shows that ifdown does read the pid and SIGTERMs dhclient correctly:

201 open("/run/dhclient.eth0.pid", O_RDONLY) = 7
201 read(7, "146\n", 4096) = 4
201 kill(146, SIGTERM) = 0

But after that pid 146 (dhclient) is still running happily. "kill 146" also does not help (just kill -9 of course). This is apparently the real regression, in wily and before you can TERM dhclient.