New potential regression on Niagara 2 with 6.18.0

John Paul Adrian Glaubitz <[email protected]> Mon, 08 Dec 2025 17:37:31 +0100

Newsgroups	gmane.linux.ports.sparc,gmane.linux.debian.ports.sparc,gmane.linux.gentoo.sparc
Message-ID	<d5c589096ad59058be99bfde42808f2c1bc06c5d.camel@physik.fu-berlin.de>

Hi,

I just tried booting Linux 6.18.0 on a SPARC T5120 server and noticed the k=
ernel buffer
was spammed with the following error messages:

[   14.756781] iommu_batch_flush: IOMMU map of [00000000:00000005:1:1:e0660=
00] failed with status -8
[   14.756959] iommu_batch_flush: IOMMU map of [00000000:00000006:1:1:e0660=
00] failed with status -8
[   14.757133] iommu_batch_flush: IOMMU map of [00000000:00000007:1:1:e0660=
00] failed with status -8

This was accompanied by the ethernet and USB controllers being unable to in=
itialize.

I will file a sparclinux issue for that. I have not bisected the bad commit=
 yet.

Adrian

--=20
 .''`.  John Paul Adrian Glaubitz
: :' :  Debian Developer
`. `'   Physicist
  `-    GPG: 62FF 8A75 84E0 2956 9546  0006 7426 3B37 F5B5 F913