On 10/03/2009 05:27 AM, Tejun Heo wrote:
Till now only one board, ASUS M2A-VM, can do 64bit dma with recent BIOSen. Enabling 64bit DMA by default already broke three boards. Enabling 64bit DMA isn't worth these regressions. Disable 64bit DMA by default and enable it only on boards which are known to work. Signed-off-by: Tejun Heo<tj@xxxxxxxxxx> Reported-by: Gabriele Balducci<balducci@xxxxxxxx> Reported-by: maierp@xxxxxxxxxxxxxxxxxxxxxxxxx Cc: Shane Huang<shane.huang@xxxxxxx> Cc: stable@xxxxxxxxxx --- drivers/ata/ahci.c | 60 +++++++++++++++++------------------------------------ 1 file changed, 20 insertions(+), 40 deletions(-)
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