https://bugzilla.suse.com/show_bug.cgi?id=1229019 https://bugzilla.suse.com/show_bug.cgi?id=1229019#c24 --- Comment #24 from Vasilis Liaskovitis <vliaskovitis@suse.com> --- The good kernel 6.4.0-150600.23.14 log has this: [ 0.618918] pci 0000:00:1c.0: Intel PCH root port ACS workaround enabled [ 0.619153] pci 0000:00:1c.4: Intel PCH root port ACS workaround enabled the bad one 6.4.0-150600.23.22 does not. Did we remove a quirk for the Intel root device? I 'll investigate more. For complete view of PCI on your system, could you also add output of: lspci -vv and maybe output from this script : #!/bin/bash for g in $(find /sys/kernel/iommu_groups/* -maxdepth 0 -type d | sort -V); do echo "IOMMU Group ${g##*/}:" for d in $g/devices/*; do echo -e "\t$(lspci -nns ${d##*/})" done; done; from both the good and bad kernel (all as root). -- You are receiving this mail because: You are on the CC list for the bug.