Re: [PATCHv7 00/16] x86: Enable Linear Address Space Separation support

Vegard Nossum
2025-06-26T09:22:34Z

On 25/06/2025 14:50, Kirill A. Shutemov wrote:
> Linear Address Space Separation (LASS) is a security feature that intends to
> prevent malicious virtual address space accesses across user/kernel mode.

I applied these patches on top of tip/master and when I try to boot it
fails with errno 12 (ENOMEM - Cannot allocate memory):

[ 1.517526] Kernel panic - not syncing: Requested init /bin/bash
failed (error -12).

Just using standard defconfig and booting in qemu/KVM with 2G RAM.

Bisect lands on "x86/asm: Introduce inline memcpy and memset".

Thanks,

Vegard