On Fri, 2014-03-07 at 18:00 -0300, Marcelo Tosatti wrote: > On Thu, Mar 06, 2014 at 07:24:31PM -0800, Jeff Kirsher wrote: > > On Thu, 2014-03-06 at 23:04 -0300, Marcelo Tosatti wrote: > > > > > > There is a race on the shutdown path of the e1000 driver > > > that allows the card to DMA into free'd memory. > > > > > > The symptoms are similar to those described at > > > commit d5bc77a223b0e9b9dfb002048d2b34a79e7d0b48, > > > "e1000: don't enable dma receives until after dma address has been > > > setup", where memory corruption is visible due to E1000_RXD_STAT_DD > > > being written to the DMA transfer descriptor. > > > > > > Fix by not allowing the watchdog and tx fifo stall detector > > > to re-enable E1000_TCTL_EN. > > > > > > Signed-off-by: Marcelo Tosatti <[email protected]> > > > > Thanks I will add this to the queue. > > > > Note- there are trailing whitespace issues and 2 comments are not > > formatted correctly. I can fix these up if there are no other issues > > with the patch, if you want. > > Ok, resent v2 with those fixed, must have inlined an older patch > in the message, sorry. >
Thanks Marcelo, I will update the patch in my queue when I receive it.
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