usb HC busted?

[Sudip Mukherjee <sudipm.mukherjee@gmail.com>]

Hi All,

On Thu, Jun 07, 2018 at 10:40:03AM +0300, Mathias Nyman wrote:
> On 06.06.2018 19:45, Sudip Mukherjee wrote:
> > Hi Andy,
> > 
> > And we meet again. :)
> > 
> > On Wed, Jun 06, 2018 at 06:36:35PM +0300, Andy Shevchenko wrote:
> > > On Wed, 2018-06-06 at 17:12 +0300, Mathias Nyman wrote:
> > > > On 04.06.2018 18:28, Sudip Mukherjee wrote:
> > > > > On Thu, May 24, 2018 at 04:35:34PM +0300, Mathias Nyman wrote:
> > > > > > 
> > > 
> > > > Odd and unlikely, but to me this looks like some issue in allocating
> > > > dma memory
> > > > from pool using dma_pool_zalloc()
> > > > 
> > > > Adding people with DMA knowledge to cc, maybe someone knows what is
> > > > going on.
> > > > 
> > > > Here's the story:
> > > > Sudip sees usb issues on a Intel Atom based board with 4.14.2 kernel.
> > > > All tracing points to dma_pool_zalloc() returning the same dma address
> > > > block on
> > > > consecutive calls.

We have started testing with v4.14.47 now and we are seeing the issue
with it also. :(
---
Regards
Sudip

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