![使用 ATI HD 7850 的 ubuntu 16.04.02 随机冻结](https://linux22.com/image/998057/%E4%BD%BF%E7%94%A8%20ATI%20HD%207850%20%E7%9A%84%20ubuntu%2016.04.02%20%E9%9A%8F%E6%9C%BA%E5%86%BB%E7%BB%93.png)
问题
我从 Nvidia Quadro k620 换成了 ATI Radeon HD 7850,除了偶尔出现死机外,ATI 运行良好。来自系统日志:
Feb 21 16:42:34 kvmhost kernel: [14207.534328] DMAR: DRHD: handling fault status reg 2
Feb 21 16:42:34 kvmhost kernel: [14207.534339] DMAR: INTR-REMAP: Request device [[00:00.1] fault index 4
Feb 21 16:42:34 kvmhost kernel: [14207.534339] INTR-REMAP:[fault reason 38] Blocked an interrupt request due to source-id verification failure
Feb 21 16:42:34 kvmhost kernel: [14207.534345] DMAR: INTR-REMAP: Request device [[00:00.0] fault index 2
Feb 21 16:42:34 kvmhost kernel: [14207.534345] INTR-REMAP:[fault reason 38] Blocked an interrupt request due to source-id verification failure
Feb 21 16:42:52 kvmhost kernel: [14225.947331] DMAR: DRHD: handling fault status reg 202
Feb 21 16:42:52 kvmhost kernel: [14225.947343] DMAR: INTR-REMAP: Request device [[00:00.1] fault index 4
Feb 21 16:42:52 kvmhost kernel: [14225.947343] INTR-REMAP:[fault reason 38] Blocked an interrupt request due to source-id verification failure
尝试修复
我在 Google 上搜索了 DMAR,kernel.org 上有关 Intel-IOMMU 的页面据说可以使用 禁用“igfx” intel_iommu=igfx_off
。但是症状仍然存在。
我按照 Intel-IOMMU 页面并尝试报告一个错误,但他们回复说在这里询问。
系统信息
- 安装版本:Ubuntu 16.04.2
uname -a
:Linux kvmhost 4.4.0-64-generic #85-Ubuntu SMP Mon Feb 20 11:50:30 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
如果您需要更多信息,请告诉我。感谢您的努力。