Re: [tip:x86/asm] x86/entry/32: Switch INT80 to the new C syscall path

[Andy Lutomirski]

On Fri, Oct 16, 2015 at 7:05 AM, Borislav Petkov <bp@xxxxxxxxx> wrote:
>
> On Fri, Oct 16, 2015 at 12:52:29PM +0200, Borislav Petkov wrote:
> > > > Just triggered this here on rc5+tip/master, 32-bit. Any ideas?
> > > >
> > > > ------------[ cut here ]------------
> > > > WARNING: CPU: 1 PID: 1 at /mnt/kernel/kernel/linux-2.6/kernel/locking/lockdep.c:2639 trace_hardirqs_off_caller+0xef/0x150()
> > > > DEBUG_LOCKS_WARN_ON(!irqs_disabled())
> > > > Modules linked in:
>
> Hmm, something more is b0rked with this. I'm attaching a #GP splat from
> the intel laptop. Yeah, the box has paniced and the only way to catch it
> is a photo (how convenient that cameras are ubiquitous nowadays...).
>
> I see prepare_exit_to_usermode and do_signal ...
>
> Fun stuff :-\


Is this AMD or Intel?  If it's Intel, can you see if booting with
nosep fixes it?

--Andy
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