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? Looks like ath_draintxq() can do something bad (e.g. DMA engine uses an old address from ath_tx_return_buffer()) if DMA is still active in ath_drain_all_txq(). But this is ath9k which I'm not so familiar with, maybe Luis can say. -- Bob Copeland %% www.bobcopeland.com -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
