| commit | aefdbf1a3b832a580a50cf3d1dcbb717be7cbdbe | |
| author | Alexey Dobriyan <adobriyan@gmail.com> | |
| Thu, 22 May 2008 22:00:25 +0000 (23 02:00 +0400) | ||
| committer | Jeff Garzik <jgarzik@redhat.com> | |
| Sat, 31 May 2008 02:07:25 +0000 (30 22:07 -0400) | ||
| tree | 8424a76c31a2d03204f58e2b155564ff8fbee953 | treesnapshot (tar.gz zip) |
| parent | 08722bc4a066705e3f5fb4a5a87ce717fe9f896e | commitdiff |
atl1: fix 4G memory corruption bug
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>
Signed-off-by: Jeff Garzik <jgarzik@redhat.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>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
| drivers/net/atlx/atl1.c | diffblobblamehistory |