BUG: using smp_processor_id() in preemptible [00000000] code: Xorg/1157
caller is kas_spin_lock+0x1b/0x100 [fglrx]
Pid: 1157, comm: Xorg Tainted: P           2.6.32-19-preempt #28-Ubuntu
Call Trace:
 [<ffffffff812d3d02>] debug_smp_processor_id+0xd2/0xf0
 [<ffffffffa026affb>] kas_spin_lock+0x1b/0x100 [fglrx]
 [<ffffffffa026b47f>] KAS_InterlockedList_RemoveAtHead+0x5f/0x180 [fglrx]
 [<ffffffffa0283f5d>] MCIL_InterlockedList+0x10d/0x2a0 [fglrx]
 [<ffffffffa032c6e0>] ? FIFO_Queue_RemoveFromHead+0x40/0x60 [fglrx]
 [<ffffffffa0337e71>] ? AllocateCallbackEntry+0x21/0x50 [fglrx]
 [<ffffffffa032d5d7>] ? RegisterIRQClient+0xb7/0x200 [fglrx]
 [<ffffffffa032fc8b>] ? IsR6XXDerivatives+0x1b/0x70 [fglrx]
 [<ffffffffa033a21e>] ? Is_IRQSource_Valid+0x8e/0xb0 [fglrx]
 [<ffffffffa032ab0e>] ? IRQMGR_Access+0xee/0x190 [fglrx]
 [<ffffffffa029d110>] ? fireglAsyncioIntHandler+0x0/0x70 [fglrx]
 [<ffffffffa029cf45>] ? fireglAsyncioIntEnableMsgHandler+0x105/0x1e0 [fglrx]
 [<ffffffff8103a9b9>] ? default_spin_lock_flags+0x9/0x10
 [<ffffffffa029d110>] ? fireglAsyncioIntHandler+0x0/0x70 [fglrx]
 [<ffffffffa02cd1ab>] ? getNextMessage+0xab/0x140 [fglrx]
 [<ffffffffa02cd0a4>] ? asyncIOHandler+0x74/0xd0 [fglrx]
 [<ffffffffa029c268>] ? firegl_asyncio_write+0x198/0x260 [fglrx]
 [<ffffffffa026dc20>] ? ip_firegl_write+0x60/0xa0 [fglrx]
 [<ffffffff8114c728>] ? vfs_write+0xb8/0x1a0
 [<ffffffff81012eec>] ? sys_rt_sigreturn+0x22c/0x240
 [<ffffffff8114d151>] ? sys_write+0x51/0x90
 [<ffffffff81013232>] ? system_call_fastpath+0x16/0x1b