[Pkg-xen-devel] Bug#988477: Bug#988477: xen-hypervisor-4.14-amd64: xen dmesg shows (XEN) AMD-Vi: IO_PAGE_FAULT on sata pci device

[Maximilian Engelhardt]

On Montag, 14. April 2025 00:22:01 CEST Elliott Mitchell wrote:
> The analysis is the "(XEN) AMD-Vi: IO_PAGE_FAULT" message, and the
> software RAID data loss are distinct bugs.  That patch/commit likely
> makes the correlated message disappear, but almost certainly leaves the
> software RAID data loss behind.
> 
> Do any of the Debian maintainers have an AMD machine setup for debugging?
> I'm not very well setup for debugging this particular issue.  If you've
> got an AMD machine with a pair of available SATA ports (including SATA
> power!), I could send a pair of SATA devices known to readily reproduce
> the issue.

I'm not aware of anybody in our team having hardware where they can reproduce 
this issue, else I'm sure they would have already provided feedback here. 
There are also not many reports here of people running into this problem. Thus 
I assume it needs a special (and probably rare) hardware combination to 
trigger this.
One thing I can add is that I have been running software raid1 with Xen on two 
SATA SSDs on an Intel CPU since many years without seeing any data corruption.

As Debian packages versions of xen, linux, etc. have changed a bit since the 
last time this issue was reported as reproduced in this bug, it would be good 
to get confirmation the problem is still there in Debian unstable or testing.


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