From: Neil Horman <[email protected]> Date: Fri, 26 Jul 2013 13:02:51 -0400
> On Fri, Jul 26, 2013 at 05:56:16PM +0100, Luis Henriques wrote: >> Neil Horman <[email protected]> writes: >> >> > atl1c uses netdev_alloc_skb to refill its rx dma ring, but that call makes >> > no >> > guarantees about the suitability of the memory for use in DMA. As a result >> > we've gotten reports of atl1c drivers occasionally hanging and needing to >> > be >> > reset: >> > https://bugzilla.kernel.org/show_bug.cgi?id=54021 >> > >> > Fix this by modifying the call to use the internal version >> > __netdev_alloc_skb, >> > where you can set the gfp_mask explicitly to include GFP_DMA. >> > >> > Tested by two reporters in the above bug, who have the hardware to >> > validate it. >> > Both report immediate cessation of the problem with this patch >> > >> > Signed-off-by: Neil Horman <[email protected]> >> > CC: Jay Cliburn <[email protected]> >> > CC: "David S. Miller" <[email protected]> >> > CC: [email protected] >> > Tested-by: Luis Henrix <[email protected]> >> >> Thanks Neil! >> >> Would it be possible for you to update my name and email? (I've just >> updated my bz account to remove my gmail account address -- I thought >> I had done this ages ago.) >> >> Tested-by: Luis Henriques <[email protected]> >> > I'm sure if Dave has time, he will square that up. I took care of this while applying Neil's patch, thanks. -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
