On Fri, 2020-01-17 at 18:21 +0530, Abdul Haleem wrote: > On Thu, 2020-01-16 at 09:44 -0800, Christoph Hellwig wrote: > > Hi Abdul, > > > > I think the problem is that mpt3sas has some convoluted logic to do > > some DMA allocations with a 32-bit coherent mask, and then switches > > to a 63 or 64 bit mask, which is not supported by the DMA API. > > > > Can you try the patch below? > > Thank you Christoph, with the given patch applied the bug is not seen. > > rmmod of mpt3sas driver is successful, no kernel Oops > > Reported-and-tested-by: Abdul Haleem <abdhalee@xxxxxxxxxxxxxxxxxx> Hi Christoph, I see the patch is under discussion, will this be merged upstream any time soon ? as boot is broken on our machines with out your patch. -- Regard's Abdul Haleem IBM Linux Technology Centre