On Fri, May 29, 2020 at 06:35:07AM +0800, Lai Jiangshan wrote:
> There will be a compile error about N_EXCEPTION_STACKS
> in arch/x86/kernel/dumpstack_64.c. It should have
>
> - BUILD_BUG_ON(N_EXCEPTION_STACKS != 6);
> + BUILD_BUG_ON(N_EXCEPTION_STACKS != 4);
Yeah, I actually have that, but forgo
On Fri, May 29, 2020 at 4:26 AM Peter Zijlstra wrote:
>
> Both #DB itself, as all other IST users (NMI, #MC) now clear DR7 on
> entry. Combined with not allowing breakpoints on entry/noinstr/NOKPROBE
> text and no single step (EFLAGS.TF) inside the #DB handler should
> guarantee us no nested #DB.
2 matches
Mail list logo
