On Mon, 14 Jan 2019 at 19:13, Christoph Hellwig wrote:
>
> Hmm, I wonder if we are not actually using swiotlb in the end,
> can you check if your dmesg contains this line or not?
>
> PCI-DMA: Using software bounce buffering for IO (SWIOTLB)
This line does not appear in my dmesg.
>
> If not I
On Mon, 14 Jan 2019 at 19:10, Christoph Hellwig wrote:
>
> On Thu, Jan 10, 2019 at 06:52:26PM +0100, Sibren Vasse wrote:
> > On Thu, 10 Jan 2019 at 15:48, Christoph Hellwig wrote:
> > >
> > > On Thu, Jan 10, 2019 at 03:00:31PM +0100, Christian König wrote:
> >
On Thu, 10 Jan 2019 at 15:48, Christoph Hellwig wrote:
>
> On Thu, Jan 10, 2019 at 03:00:31PM +0100, Christian König wrote:
> >> From the trace it looks like we git the case where swiotlb tries
> >> to copy back data from a bounce buffer, but hits a dangling or NULL
> >> pointer. So a couple
On Thu, 10 Jan 2019 at 18:06, Konrad Rzeszutek Wilk
wrote:
>
> On Thu, Jan 10, 2019 at 04:26:43PM +0100, Sibren Vasse wrote:
> > On Thu, 10 Jan 2019 at 14:57, Christoph Hellwig wrote:
> > >
> > > On Thu, Jan 10, 2019 at 10:59:02AM +0100, Michel Dänzer wrote
On Thu, 10 Jan 2019 at 14:57, Christoph Hellwig wrote:
>
> On Thu, Jan 10, 2019 at 10:59:02AM +0100, Michel Dänzer wrote:
> >
> > Hi Christoph,
> >
> >
> > https://bugs.freedesktop.org/109234 (please ignore comments #6-#9) was
> > bisected to your commit 55897af63091 "dma-direct: merge