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

[Elliott Mitchell]

On Fri, Mar 14, 2025 at 10:42:24PM +0100, Maximilian Engelhardt wrote:
> A fix [1] for the IO_PAGE_FAULT went into xen 4.20 which is now available in 
> testing and unstable.
> The 4.20.0-1 Debian source package can also be compiled for bookworm if you 
> have a bookworm system running and want to test there. Please not that qemu 
> also needs to be recompiled for this xen version if you are using qemu.
> 
> Can anyone affected by this bug conform if their issue is fixed in xen 4.20 or 
> is still there?
> 
> [1] https://salsa.debian.org/xen-team/debian-xen/-/commit/b953a99da98d63a7c827248abc450d4e8e015ab6

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.


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