Subject: recvmsg sleeping from invalid context

From: Dave Jones <[email-masked]>
Date: Fri, 13 Jan 2012 13:24:01 -0500

getting a ton of these on the latest head (099469502f62fbe0d7e4f0b83a2f22538367f734)

BUG: sleeping function called from invalid context at mm/memory.c:3905
in_atomic(): 0, irqs_disabled(): 0, pid: 1067, name: NetworkManager
INFO: lockdep is turned off.
Pid: 1067, comm: NetworkManager Not tainted 3.2.0+ #22
Call Trace:
 [<ffffffff81099415>] __might_sleep+0x145/0x200
 [<ffffffff811752a4>] might_fault+0x34/0xb0
 [<ffffffff81551555>] ? sock_def_readable+0x25/0x1a0
 [<ffffffff8155c387>] put_cmsg+0x77/0x120
 [<ffffffff8159379c>] netlink_recvmsg+0x35c/0x480
 [<ffffffff8155201a>] ? sock_update_classid+0x9a/0x260
 [<ffffffff81552052>] ? sock_update_classid+0xd2/0x260
 [<ffffffff81549fbd>] sock_recvmsg+0x11d/0x140
 [<ffffffff811752c3>] ? might_fault+0x53/0xb0
 [<ffffffff8117530c>] ? might_fault+0x9c/0xb0
 [<ffffffff811752c3>] ? might_fault+0x53/0xb0
 [<ffffffff8154b1b3>] __sys_recvmsg+0x153/0x2d0
 [<ffffffff811bc39a>] ? fget_light+0x5a/0x470
 [<ffffffff8109fd11>] ? get_parent_ip+0x11/0x50
 [<ffffffff816ac23d>] ? sub_preempt_count+0x9d/0xd0
 [<ffffffff811bc43b>] ? fget_light+0xfb/0x470
 [<ffffffff811bc39a>] ? fget_light+0x5a/0x470
 [<ffffffff8154e2e9>] sys_recvmsg+0x49/0x90
 [<ffffffff816b00e9>] system_call_fastpath+0x16/0x1b

BUG: sleeping function called from invalid context at kernel/mutex.c:271
in_atomic(): 0, irqs_disabled(): 0, pid: 1067, name: NetworkManager
INFO: lockdep is turned off.
Pid: 1067, comm: NetworkManager Not tainted 3.2.0+ #22
Call Trace:
 [<ffffffff81099415>] __might_sleep+0x145/0x200
 [<ffffffff816a529e>] mutex_lock_nested+0x2e/0x50
 [<ffffffff812022d0>] inotify_poll+0x30/0x60
 [<ffffffff811d16f0>] do_sys_poll+0x280/0x500
 [<ffffffff811d01b0>] ? poll_freewait+0xe0/0xe0
 [<ffffffff811d02a0>] ? __pollwait+0xf0/0xf0
 [<ffffffff811d02a0>] ? __pollwait+0xf0/0xf0
 [<ffffffff811d02a0>] ? __pollwait+0xf0/0xf0
 [<ffffffff811d02a0>] ? __pollwait+0xf0/0xf0
 [<ffffffff811d02a0>] ? __pollwait+0xf0/0xf0
 [<ffffffff811d02a0>] ? __pollwait+0xf0/0xf0
 [<ffffffff811d02a0>] ? __pollwait+0xf0/0xf0
 [<ffffffff8109fd11>] ? get_parent_ip+0x11/0x50
 [<ffffffff816ac23d>] ? sub_preempt_count+0x9d/0xd0
 [<ffffffff811bc39a>] ? fget_light+0x5a/0x470
 [<ffffffff8154dc2b>] ? sys_sendto+0x15b/0x190
 [<ffffffff810b776d>] ? ktime_get_ts+0xad/0xe0
 [<ffffffff811d049a>] ? poll_select_set_timeout+0x7a/0x90
 [<ffffffff811d1a56>] sys_poll+0x76/0x110
 [<ffffffff816b00e9>] system_call_fastpath+0x16/0x1b