Messages in this thread | | | Subject | Re: 2.6.35-rc4 - include/linux/fdtable.h:85 invoked rcu_dereference_check() without protection! | From | Eric Dumazet <> | Date | Wed, 07 Jul 2010 06:34:17 +0200 |
| |
Le mardi 06 juillet 2010 à 20:25 -0400, Miles Lane a écrit : > [ INFO: suspicious rcu_dereference_check() usage. ] > --------------------------------------------------- > include/linux/fdtable.h:85 invoked rcu_dereference_check() without protection! > > other info that might help us debug this: > > rcu_scheduler_active = 1, debug_locks = 1 > no locks held by compiz/4286. > > stack backtrace: > Pid: 4286, comm: compiz Not tainted 2.6.35-rc4 #6 > Call Trace: > [<ffffffff8106714e>] lockdep_rcu_dereference+0x9d/0xa6 > [<ffffffff810d3bdd>] fcheck_files+0x5c/0xca > [<ffffffff810d3ca3>] fget_light+0x35/0x96 > [<ffffffff810e1b02>] do_sys_poll+0x1ff/0x3e5 > [<ffffffff810e1316>] ? __pollwait+0x0/0xc7 > [<ffffffff810e13dd>] ? pollwake+0x0/0x4f > [<ffffffff8125b785>] ? __sock_sendmsg+0x66/0x72 > [<ffffffff8125da9e>] ? sock_aio_write+0x0/0xf6 > [<ffffffff8125db7f>] ? sock_aio_write+0xe1/0xf6 > [<ffffffff810d295f>] ? do_sync_readv_writev+0xbc/0xfb > [<ffffffff810d284f>] ? fsnotify_modify+0x67/0x6f > [<ffffffff810d35eb>] ? do_readv_writev+0x109/0x122 > [<ffffffff81009cba>] ? sysret_check+0x2e/0x69 > [<ffffffff810e1e7c>] sys_poll+0x50/0xba > [<ffffffff81009c82>] system_call_fastpath+0x16/0x1b > > =============================================================================== > > [ INFO: suspicious rcu_dereference_check() usage. ] > --------------------------------------------------- > include/linux/fdtable.h:88 invoked rcu_dereference_check() without protection! > > other info that might help us debug this: > > rcu_scheduler_active = 1, debug_locks = 1 > no locks held by gnome-panel/4293. > > stack backtrace: > Pid: 4293, comm: gnome-panel Not tainted 2.6.35-rc4 #6 > Call Trace: > [<ffffffff8106714e>] lockdep_rcu_dereference+0x9d/0xa6 > [<ffffffff810d3c32>] fcheck_files+0xb1/0xca > [<ffffffff810ab263>] ? might_fault+0x63/0xb3 > [<ffffffff810d3ca3>] fget_light+0x35/0x96 > [<ffffffff810e1b02>] do_sys_poll+0x1ff/0x3e5 > [<ffffffff810e1316>] ? __pollwait+0x0/0xc7 > [<ffffffff8125a2ae>] ? __sock_recvmsg_nosec+0x65/0x6e > [<ffffffff8125b7da>] ? __sock_recvmsg+0x49/0x54 > [<ffffffff8125da8a>] ? sock_aio_read+0xe8/0xfc > [<ffffffff810d2b67>] ? do_sync_read+0xc6/0x103 > [<ffffffff81009cba>] ? sysret_check+0x2e/0x69 > [<ffffffff810e1e7c>] sys_poll+0x50/0xba > [<ffffffff81009c82>] system_call_fastpath+0x16/0x1b > --
Miles, you already posted this three times, and a fix is known.
BTW, I dont know why it's not already in, Paul submitted it several times, but nobody cares.
http://kerneltrap.org/mailarchive/linux-kernel/2010/6/17/4584014
I am going to Ack it, maybe some other guys can help to.
-- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |