Messages in this thread | | | Date | Mon, 8 Nov 2010 16:00:51 -0500 | Subject | Re: 2.6.36-git11 -- kernel/pid.c:419 invoked rcu_dereference_check() without protection! | From | Miles Lane <> |
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Great! Works here. :-)
On Sun, Nov 7, 2010 at 1:47 PM, Paul E. McKenney <paulmck@linux.vnet.ibm.com> wrote: > On Fri, Oct 29, 2010 at 01:22:28AM -0400, Miles Lane wrote: >> [ INFO: suspicious rcu_dereference_check() usage. ] >> --------------------------------------------------- >> kernel/pid.c:419 invoked rcu_dereference_check() without protection! >> >> other info that might help us debug this: >> >> >> rcu_scheduler_active = 1, debug_locks = 1 >> 1 lock held by ureadahead/943: >> #0: (tasklist_lock){.+.+..}, at: [<ffffffff810ec497>] >> sys_ioprio_set+0x8e/0x2aa >> >> stack backtrace: >> Pid: 943, comm: ureadahead Not tainted 2.6.36-git11 #8 >> Call Trace: >> [<ffffffff8105d335>] lockdep_rcu_dereference+0x9d/0xa5 >> [<ffffffff8104c825>] find_task_by_pid_ns+0x3f/0x58 >> [<ffffffff8104c85b>] find_task_by_vpid+0x1d/0x1f >> [<ffffffff810ec4c6>] sys_ioprio_set+0xbd/0x2aa >> [<ffffffff813547a3>] ? trace_hardirqs_on_thunk+0x3a/0x3f >> [<ffffffff81002aab>] system_call_fastpath+0x16/0x1b > > Could you please try the patch from Sergey Senozhatsky, currently > in -mm, that may be found at http://lkml.org/lkml/2010/10/29/168? > > Thanx, Paul > -- 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/
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