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Arch Linux Chinese Messages@archlinuxcn P.229
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Arch Linux Chinese Messages
Intel 11 代及以后 CPU 并且用 nvidia 显卡的用户如果升级到 linux 内核版本 5.18 后出现问题,可在内核命令行上添加 ibt=off 来绕过问题。
其余树外内核模块也可能受影响,包括并不限于 virtualbox 和 kvm/qemu ,使用 11 代 intel CPU 并且升级内核版本后遇到内核模块不能正常使用的可以尝试添加 ibt=off 内核参数。
添加方法取决于 bootloader 参见 https://wiki.archlinux.org/title/Kernel_parameters_(%E7%AE%80%E4%BD%93%E4%B8%AD%E6%96%87)#%E9%85%8D%E7%BD%AE
使用 GRUB 的用户可以使用管理权限(加sudo)执行以下命令:
sed -i 's/LINUX_DEFAULT="/\0ibt=off /g' /etc/default/grub
grub-mkconfig -o /boot/grub/grub.cfg
关于 ibt=off 关掉了什么以及 ibt 是什么,推荐阅读 https://edc.intel.com/content/www/us/en/design/ipla/software-development-platforms/client/platforms/alder-lake-desktop/12th-generation-intel-core-processors-datasheet-volume-1-of-2/006/indirect-branch-tracking/
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7001052160d172f6de06adeffde24dde9935ece8
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其余树外内核模块也可能受影响,包括并不限于 virtualbox 和 kvm/qemu ,使用 11 代 intel CPU 并且升级内核版本后遇到内核模块不能正常使用的可以尝试添加 ibt=off 内核参数。
添加方法取决于 bootloader 参见 https://wiki.archlinux.org/title/Kernel_parameters_(%E7%AE%80%E4%BD%93%E4%B8%AD%E6%96%87)#%E9%85%8D%E7%BD%AE
使用 GRUB 的用户可以使用管理权限(加sudo)执行以下命令:

sed -i 's/LINUX_DEFAULT="/\0ibt=off /g' /etc/default/grub
grub-mkconfig -o /boot/grub/grub.cfg
关于 ibt=off 关掉了什么以及 ibt 是什么,推荐阅读 https://edc.intel.com/content/www/us/en/design/ipla/software-development-platforms/client/platforms/alder-lake-desktop/12th-generation-intel-core-processors-datasheet-volume-1-of-2/006/indirect-branch-tracking/
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7001052160d172f6de06adeffde24dde9935ece8

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