Bug 92121

Summary:	acpid cannot connect to netlink socket (bisected)
Product:	Networking	Reporter:	Martin Ziegler (ziegler)
Component:	Other	Assignee:	Stephen Hemminger (stephen)
Status:	RESOLVED CODE_FIX
Severity:	high	CC:	bjorn
Priority:	P1
Hardware:	x86-64
OS:	Linux
Kernel Version:	3.19.0-rc6	Subsystem:
Regression:	Yes	Bisected commit-id:

Description Martin Ziegler 2015-01-26 22:15:46 UTC

acpid ouputs the following:

  Cannot bind netlink socket: No such file or directory
  acpid: cannot open generic netlink socket
  acpid: starting up with netlink and the input layer

The commit responsible for that is

  5ad6300524c0332ac67e912c20d6e5cf262ba58f
  
  genetlink: disallow subscribing to unknown mcast group

Reverting lets the bug vanish

Comment 1 Johannes Berg 2015-02-04 15:42:52 UTC

According to Bjørn this is fixed by commit 8b7c36d810c6 ("netlink: fix wrong subscription bitmask to group mapping in")