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SubjectRe: [PATCH RESEND] atl1: fix 4G memory corruption bug
Alexey Dobriyan wrote:
> From: Alexey Dobriyan <adobriyan@gmail.com>
>
> 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@gmail.com>
> Signed-off-by: Jay Cliburn <jacliburn@bellsouth.net>
> ---
>
> drivers/net/atlx/atl1.c | 1 +
> 1 files changed, 1 insertions(+), 0 deletions(-)

applied




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