Re: [Xen-devel] bnx2x DMA mapping errors cause iscsi problems

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 23.04.14 at 10:07, <Patrick.Vranckx@xxxxxxxxxxxx> wrote:
> Looking at bnx2x source code (bnx2x_cmn.c), it appears this error is 
> caused by a DMA mapping error for rx buffers (memory leak ?)
> 
> static int bnx2x_alloc_rx_data(struct bnx2x *bp, struct bnx2x_fastpath *fp,
> u16 index, gfp_t gfp_mask)
> {
> ....
> mapping = dma_map_single(&bp->pdev->dev, data + NET_SKB_PAD,
> fp->rx_buf_size,
> DMA_FROM_DEVICE);

With that, did you try increasing the SWIOTLB size ("swiotlb=" on the
kernel command line)?

Jan


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