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

[Imre Szőllősi]

Package: src:xen
Version: 4.14.1+11-gb0b734a8b3-1
Severity: critical
Justification: causes serious data loss
X-Debbugs-Cc: debianbts at virtualzone.hu

Dear Maintainer,

after a clean install of bullseye/testing the xen dmesg shows the following message:
(XEN) AMD-Vi: IO_PAGE_FAULT: 0000:01:00.1 d0 addr fffffffdf8000000 flags 0x8 I
this is the sata device:
01:00.1 SATA controller: Advanced Micro Devices, Inc. [AMD] 400 Series Chipset SATA Controller (rev 01)
or on another mb
01:00.1 SATA controller: Advanced Micro Devices, Inc. [AMD] Device 43eb
in the case of write operations - ie. dbench or windows guest - there are a lot of messages
sometimes the filesystem goes to read-only state, and the windows guest goes bsod
tested on 3 hw:
1. asus prime b450m-a, ryzen 5 2600x, md raid1, 2x samsung 1TB 860evo, lvm: problem does appear
2. asus prime b550m-k, ryzen 5 5600x, md raid1, 2x samsung 1TB 870evo, lvm: problem does appear
3. asus prime b550m-k, ryzen 5 5600x, 1x samsung 1TB 850evo, lvm: problem does not appear
3. asus prime b550m-k, ryzen 5 5600x, 1x samsung 128GB 840pro, lvm: problem does not appear
3. asus prime b550m-k, ryzen 5 5600x, samsung 1TB 850evo + samsung 128GB 840pro, lvm, dbench on 2 ssds in parallel: problem does appear

as i see, the problem does appear, when writes data parallel to 2 ssds

Thanks!

-- System Information:
Debian Release: bullseye/sid
  APT prefers testing-security
  APT policy: (500, 'testing-security'), (500, 'testing')
Architecture: amd64 (x86_64)

Kernel: Linux 5.10.0-6-amd64 (SMP w/12 CPU threads)
Locale: LANG=hu_HU.UTF-8, LC_CTYPE=hu_HU.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

xen-hypervisor-4.14-amd64 depends on no packages.

Versions of packages xen-hypervisor-4.14-amd64 recommends:
ii  xen-hypervisor-common  4.14.1+11-gb0b734a8b3-1
ii  xen-utils-4.14         4.14.1+11-gb0b734a8b3-1

xen-hypervisor-4.14-amd64 suggests no packages.

-- no debconf information