Debian Linux 升級到 bullseye ,重新開機後,dmesg 就看到下述訊息不斷:
batou kernel: DMAR: DRHD: handling fault status reg 3 batou kernel: DMAR: [DMA Read] Request device [05:00.0] fault addr fffe0000 [fault reason 06] PTE Read access is not set
要怎麼解決呢?
Linux 遇到 DMAR: DRHD: handling fault status reg 解法
遇到 DMAR: DRHD: handling fault status reg 3 的問題,解法於開機的參數加上 intel_iommu=off,再來重新開機即可。
步驟如下:
- vim /boot/grub/grub.cfg # 最後面加上 intel_iommu=off
- 找到此行:linux /boot/vmlinuz-5.10.0-21-amd64 root=UUID=f4994a48-a4ec-40c4-982c-dba7046fe8be ro quiet intel_iommu=off
- 存擋並重新開機即可