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    SubjectRe: <IRQ> [<ffffffff810c9204>] ? __alloc_pages_nodemask+0x622/0x696
    On Wed, Mar 09, 2011 at 04:05:02PM -0800, Bob Copeland wrote:
    > On Wed, Mar 09, 2011 at 03:54:24PM -0600, Christoph Lameter wrote:
    > > [ 7419.322770] wlan0: associated
    > > [ 7427.161366] ath: Failed to stop TX DMA in 100 msec after killing last frame
    > > [ 7427.161432] ath: Failed to stop TX DMA!
    > > [ 7434.492398] ath: Failed to stop TX DMA in 100 msec after killing last frame
    > > [ 7434.492462] ath: Failed to stop TX DMA!
    > > [ 7603.339047]
    > > =============================================================================
    > > [ 7603.339053] BUG radix_tree_node: Padding overwritten. 0xffff88000008fe00-0xffff88000008fe32
    >
    > > Could the ath driver corrupt memory if the TX DMA cannot be stopped?

    Yes, this is why we have had a series of patches to address this upstream,
    the latest one was for RX DMA failing to stop but Felix found a fix for that.
    Apart from that I am not aware of more issues. Can you please try with
    wireless-testing.git ?

    Luis


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