On 2023-10-25 00:19, Uwe Kleine-König wrote:
> Hello,
>
> in https://bugs.debian.org/1015871 the Debian kernel team got a request
> to enable PCI_P2PDMA. Given the description of the feature and also the
> "If unsure, say N." I wonder if you consider it safe to enable this
> option.
I don't
On Wed, Oct 25, 2023 at 10:30:07AM -0600, Logan Gunthorpe wrote:
> In addition to the above, P2PDMA transfers are only allowed by the
> kernel for traffic that flows through certain host bridges that are
> known to work. For AMD, all modern CPUs are on this list, but for Intel,
> the list is very
On 2023-10-25 11:35, Bjorn Helgaas wrote:
> On Wed, Oct 25, 2023 at 07:11:26PM +0200, Lukas Wunner wrote:
>> On Wed, Oct 25, 2023 at 10:30:07AM -0600, Logan Gunthorpe wrote:
>>> In addition to the above, P2PDMA transfers are only allowed by the
>>> kernel for traffic that flows through certain
Your message dated Wed, 25 Oct 2023 21:59:47 +0200
with message-id <11804044.k8ZYH73JnH@bagend>
and subject line Re: Bug#1053281: issue fixed
has caused the Debian Bug report #1053281,
regarding linux-image-6.5.0-1-amd64: Debian does not boot at cold start on
kernel 6.5.0-1-amd64 on Intel NUC 12
[Public]
> -Original Message-
> From: Logan Gunthorpe
> Sent: Wednesday, October 25, 2023 12:30 PM
> To: Uwe Kleine-König ; Bjorn Helgaas
>
> Cc: Simon Richter ; 1015...@bugs.debian.org; linux-
> p...@vger.kernel.org; Deucher, Alexander ;
> Krzysztof Wilczyński ; Emanuele Rocca
>
Hi,
In most recent kernel [linux-image-6.5.0-3-amd64 (6.5.8-1)] the issue no
longer occurs.
Thanks
Kazimierz Uromski
Processing commands for cont...@bugs.debian.org:
> # earliest version after 5.13~rc1
> found 1054514 5.13.9-1~exp1
Bug #1054514 [src:linux] linux-image-6.1.0-13-amd64: Debian VM with qxl
graphics freezes frequently
Marked as found in versions linux/5.13.9-1~exp1.
> thanks
Stopping processing
On Wed, Oct 25, 2023 at 07:11:26PM +0200, Lukas Wunner wrote:
> On Wed, Oct 25, 2023 at 10:30:07AM -0600, Logan Gunthorpe wrote:
> > In addition to the above, P2PDMA transfers are only allowed by the
> > kernel for traffic that flows through certain host bridges that are
> > known to work. For
Hi,
On 10/26/23 02:11, Lukas Wunner wrote:
This has recently been brought up internally at Intel and nobody could
understand why there's a whitelist in the first place. A long-time PCI
architect told me that Intel silicon validation has been testing P2PDMA
at least since the Lindenhurst days,
Processing commands for cont...@bugs.debian.org:
> found 1054514 6.5.8-1
Bug #1054514 [src:linux] linux-image-6.1.0-13-amd64: Debian VM with qxl
graphics freezes frequently
Marked as found in versions linux/6.5.8-1.
> thanks
Stopping processing here.
Please contact me if you need assistance.
--
Hello,
in https://bugs.debian.org/1015871 the Debian kernel team got a request
to enable PCI_P2PDMA. Given the description of the feature and also the
"If unsure, say N." I wonder if you consider it safe to enable this
option.
Assuming this option isn't completely free of security concerns, a
Hi,
On 10/25/23 03:29, Emanuele Rocca wrote:
I hesitate to actually enable it because I don't understand PCI good
enough to judge it's a safe choice for the Debian kernel.
There is a kernel API for "return the physical address of a BAR mapping
on another PCI device, as seen from the point
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