[KOP]:: L2 fails to boot with vfio passed through device and memory > 128G
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
The Ubuntu-power-systems project |
New
|
Medium
|
Ubuntu on IBM Power Systems Bug Triage | ||
qemu (Ubuntu) |
New
|
Medium
|
Unassigned |
Bug Description
== Comment: #0 - SEETEENA THOUFEEK <email address hidden> - 2025-04-15 09:03:28 ==
+++ This bug was initially created as a clone of Bug #212409 +++
---Problem Description---
---Problem Description---
An L2 fails to boot inside an L1 when booted with a memory more than 128G and a VFIO device passthrough.
The issue is seen with both, when guest booted with virsh and as well as with a direct qemu cmdline.
Error:
------
[ 4.708646] tg3 0001:00:01.0: enabling device (0140 -> 0142)
[ 4.734333] tg3 0001:00:01.0: ibm,query-
qemu-system-ppc64: Failed to create a window, ret = -1 (Invalid argument)
qemu-system-ppc64: Failed to create SPAPR window: Invalid argument
qemu: hardware error: vfio: DMA mapping failed, unable to continue
Contact Information = <email address hidden>
---uname output---
na
Machine Type = na
---Debugger---
A debugger is not configured
The patches are now in vfio-next branch in Cedric's tree:
d7ee6466d4ab ("vfio/spapr: Fix L2 crash with PCI device passthrough and memory > 128G")
ce07cf682e54 ("vfio/spapr: Enhance error handling in vfio_spapr_
Links to commits:
https:/
https:/
~Amit
Machine Type = na
---Debugger---
A debugger is not configured
Contact Information = <email address hidden>
---uname output---
na
tags: | added: architecture-ppc64le bugnameltc-212410 severity-medium targetmilestone-inin2510 |
Changed in ubuntu: | |
assignee: | nobody → Ubuntu on IBM Power Systems Bug Triage (ubuntu-power-triage) |
affects: | ubuntu → qemu (Ubuntu) |
Hello Seeteena, that for having raised this. e-inin2510' is set, but release 25.10 is not open for development yet.)
May I ask which Ubuntu releases are affected? Is it only 25.04 or 24.04 and newer (up to 25.04)?
(Tag 'targetmileston