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From: Miles Lane on 13 Jun 2010 03:10
[ 2074.377176] [ INFO: suspicious rcu_dereference_check() usage. ]
[ 2074.377180] ---------------------------------------------------
[ 2074.377185] include/linux/fdtable.h:85 invoked
rcu_dereference_check() without protection!
[ 2074.377189]
[ 2074.377190] other info that might help us debug this:
[ 2074.377191]
[ 2074.377195]
[ 2074.377196] rcu_scheduler_active = 1, debug_locks = 1
[ 2074.377200] no locks held by gvfsd/4402.
[ 2074.377203]
[ 2074.377204] stack backtrace:
[ 2074.377209] Pid: 4402, comm: gvfsd Not tainted 2.6.35-rc3 #1
[ 2074.377213] Call Trace:
[ 2074.377226] [<ffffffff8106f2c5>] lockdep_rcu_dereference+0x9d/0xa5
[ 2074.377235] [<ffffffff810e9104>] fcheck_files+0x5c/0xc9
[ 2074.377242] [<ffffffff810e91c9>] fget_light+0x35/0x96
[ 2074.377250] [<ffffffff810f77b0>] do_sys_poll+0x1ff/0x3e5
[ 2074.377257] [<ffffffff810f6eb2>] ? __pollwait+0x0/0xc7
[ 2074.377264] [<ffffffff810f6f79>] ? pollwake+0x0/0x4f
[ 2074.377271] [<ffffffff810f6f79>] ? pollwake+0x0/0x4f
[ 2074.377277] [<ffffffff810f6f79>] ? pollwake+0x0/0x4f
[ 2074.377285] [<ffffffff812d2f18>] ? __sock_recvmsg_nosec+0x65/0x6e
[ 2074.377292] [<ffffffff812d4401>] ? __sock_recvmsg+0x49/0x54
[ 2074.377299] [<ffffffff812d6842>] ? sock_aio_read+0xc2/0xd6
[ 2074.377307] [<ffffffff810e7faf>] ? do_sync_read+0xc6/0x103
[ 2074.377316] [<ffffffff8119ec0c>] ? security_file_permission+0x11/0x13
[ 2074.377324] [<ffffffff8100877a>] ? sysret_check+0x2e/0x69
[ 2074.377331] [<ffffffff810f7b2a>] sys_poll+0x50/0xbb
[ 2074.377338] [<ffffffff81008742>] system_call_fastpath+0x16/0x1b
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