rcu errors from kernel-3.0-0.rc4.git3.1.fc16.x86_64
Using kernel-3.0-0.rc4.git3.1.fc16.x86_64 kernel I get:
Jun 26 18:07:38 lap3 kernel: [ 340.907928]
===================================================
Jun 26 18:07:38 lap3 kernel: [ 340.909769] [ INFO: suspicious
rcu_dereference_check() usage. ]
Jun 26 18:07:38 lap3 kernel: [ 340.910713]
---------------------------------------------------
Jun 26 18:07:38 lap3 kernel: [ 340.911662]
security/selinux/netport.c:143 invoked rcu_dereference_check() without
protection!
Jun 26 18:07:38 lap3 kernel: [ 340.912641]
Jun 26 18:07:38 lap3 kernel: [ 340.912642] other info that might help
us debug this:
Jun 26 18:07:38 lap3 kernel: [ 340.912642]
Jun 26 18:07:38 lap3 kernel: [ 340.915557]
Jun 26 18:07:38 lap3 kernel: [ 340.915558] rcu_scheduler_active = 1,
debug_locks = 0
Jun 26 18:07:38 lap3 kernel: [ 340.917509] 1 lock held by named/1617:
Jun 26 18:07:38 lap3 kernel: [ 340.918492] #0:
(sel_netport_lock){+.....}, at: [<ffffffff812191d6>]
sel_netport_sid+0xa1/0x207
Jun 26 18:07:38 lap3 kernel: [ 340.919540]
Jun 26 18:07:38 lap3 kernel: [ 340.919540] stack backtrace:
Jun 26 18:07:38 lap3 kernel: [ 340.921583] Pid: 1617, comm: named Not
tainted 3.0-0.rc4.git3.1.fc16.x86_64 #1
Jun 26 18:07:38 lap3 kernel: [ 340.922648] Call Trace:
Jun 26 18:07:38 lap3 kernel: [ 340.923711] [<ffffffff81086ced>]
lockdep_rcu_dereference+0xa8/0xb0
Jun 26 18:07:38 lap3 kernel: [ 340.924805] [<ffffffff812192d0>]
sel_netport_sid+0x19b/0x207
Jun 26 18:07:38 lap3 kernel: [ 340.925907] [<ffffffff81219135>] ?
sel_netport_find+0x93/0x93
Jun 26 18:07:38 lap3 kernel: [ 340.927009] [<ffffffff81213670>]
selinux_socket_bind+0x13b/0x26f
Jun 26 18:07:38 lap3 kernel: [ 340.928121] [<ffffffff81089136>] ?
lock_release+0x173/0x19c
Jun 26 18:07:38 lap3 kernel: [ 340.929242] [<ffffffff811054c9>] ?
might_fault+0xa5/0xac
Jun 26 18:07:38 lap3 kernel: [ 340.930357] [<ffffffff81105480>] ?
might_fault+0x5c/0xac
Jun 26 18:07:38 lap3 kernel: [ 340.931469] [<ffffffff8120d697>]
security_socket_bind+0x16/0x18
Jun 26 18:07:38 lap3 kernel: [ 340.932586] [<ffffffff813f8427>]
sys_bind+0x73/0xcf
Jun 26 18:07:38 lap3 kernel: [ 340.933716] [<ffffffff814f9eba>] ?
sysret_check+0x2e/0x69
Jun 26 18:07:38 lap3 kernel: [ 340.934828] [<ffffffff81089621>] ?
trace_hardirqs_on_caller+0x10b/0x12f
Jun 26 18:07:38 lap3 kernel: [ 340.935949] [<ffffffff810ac269>] ?
audit_syscall_entry+0x11c/0x148
Jun 26 18:07:38 lap3 kernel: [ 340.937070] [<ffffffff8125c93e>] ?
trace_hardirqs_on_thunk+0x3a/0x3f
Jun 26 18:07:38 lap3 kernel: [ 340.938203] [<ffffffff814f9e82>]
system_call_fastpath+0x16/0x1b