----- Original Message ----- > From: "Bart Van Assche" <bart.vanassche@xxxxxxxxxxx> > To: "Yishai Hadas" <yishaih@xxxxxxxxxxxx> > Cc: "Laurence Oberman" <loberman@xxxxxxxxxx>, linux-rdma@xxxxxxxxxxxxxxx > Sent: Monday, June 13, 2016 2:32:53 AM > Subject: Re: multipath IB/srp fail-over testing lands up in dump stack in swiotlb_alloc_coherent() > > On 06/12/2016 03:40 PM, Laurence Oberman wrote: > > Jun 8 10:12:52 jumpclient kernel: mlx5_core 0000:08:00.1: swiotlb buffer > > is full (sz: 266240 bytes) > > Jun 8 10:12:52 jumpclient kernel: swiotlb: coherent allocation failed for > > device 0000:08:00.1 size=266240 > > Hello, > > I think the above means that the coherent memory allocation succeeded > but that the test dev_addr + size - 1 <= DMA_BIT_MASK(32) failed. Can > someone from Mellanox tell us whether or not it would be safe to set > coherent_dma_mask to DMA_BIT_MASK(64) for the mlx4 and mlx5 drivers? > > Thanks, > > Bart. > -- > To unsubscribe from this list: send the line "unsubscribe linux-rdma" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > Hello Leon Are you able to answer Bart's question here re the possibility of using DMA_BIT_MASK(64) For now I have disabled this warning and dump stack while I continue to test. Thanks Laurence -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
