On Tue, Feb 23, 2021 at 03:17:07PM -0800, syzbot wrote: > syzbot has bisected this issue to: > > commit 167dcfc08b0b1f964ea95d410aa496fd78adf475 > Author: Lorenzo Stoakes <lstoakes@xxxxxxxxx> > Date: Tue Dec 15 20:56:41 2020 +0000 > > x86/mm: Increase pgt_buf size for 5-level page tables > > bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=13fe3ea8d00000 > start commit: a99163e9 Merge tag 'devicetree-for-5.12' of git://git.kern.. > git tree: upstream > final oops: https://syzkaller.appspot.com/x/report.txt?x=10013ea8d00000 No oops here. > console output: https://syzkaller.appspot.com/x/log.txt?x=17fe3ea8d00000 Nothing special here too. > kernel config: https://syzkaller.appspot.com/x/.config?x=49116074dd53b631 Tried this on two boxes, the Intel one doesn't even boot with that config - and it is pretty standard one - and on the AMD one the reproducer doesn't trigger anything. It probably won't because the GP is in vmx_vcpu_run() but since the ioctls were doing something with IRQCHIP, I thought it is probably vendor-agnostic. So, all in all, I could use some more info on how you're reproducing and maybe you could show the oops too. Thx. -- Regards/Gruss, Boris. https://people.kernel.org/tglx/notes-about-netiquette
