Hi Dmitry, On Wed, Feb 24, 2021 at 06:12:57PM +0100, Dmitry Vyukov wrote: > Looking at the bisection log, the bisection was distracted by something else. Meaning the bisection result: 167dcfc08b0b ("x86/mm: Increase pgt_buf size for 5-level page tables") is bogus? > You can always find the original reported issue over the dashboard link: > https://syzkaller.appspot.com/bug?extid=42a71c84ef04577f1aef > or on lore: > https://lore.kernel.org/lkml/0000000000007ff56205ba985b60@xxxxxxxxxx/ Ok, so this looks like this is trying to run kvm ioctls *in* a guest, i.e., nested. Right? Thx. -- Regards/Gruss, Boris. https://people.kernel.org/tglx/notes-about-netiquette