Re: [PATCH RESEND] atl1: fix 4G memory corruption bug

[Jeff Garzik]

Alexey Dobriyan wrote:
> From: Alexey Dobriyan <adobriyan@xxxxxxxxx>
>
> When using 4+ GB RAM and SWIOTLB is active, the driver corrupts
> memory by writing an skb after the relevant DMA page has been
> unmapped.  Although this doesn't happen when *not* using bounce
> buffers, clearing the pointer to the DMA page after unmapping
> it fixes the problem.
>
> http://marc.info/?t=120861317000005&r=2&w=2
>
>
> Signed-off-by: Alexey Dobriyan <adobriyan@xxxxxxxxx>
> Signed-off-by: Jay Cliburn <jacliburn@xxxxxxxxxxxxx>
> ---
>
>  drivers/net/atlx/atl1.c |    1 +
>  1 files changed, 1 insertions(+), 0 deletions(-)

applied


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/