On Wed, Apr 11, 2018 at 6:24 PM, David Howells <dhowe...@redhat.com> wrote: > From: Kyle McMartin <k...@redhat.com> > > Make an option to provide a sysrq key that will lift the kernel lockdown, > thereby allowing the running kernel image to be accessed and modified. > > On x86 this is triggered with SysRq+x, but this key may not be available on > all arches, so it is set by setting LOCKDOWN_LIFT_KEY in asm/setup.h. > Since this macro must be defined in an arch to be able to use this facility > for that arch, the Kconfig option is restricted to arches that support it.
In the current form, this is probably incompatible with USB/IP (which Debian seems to be shipping as a module by default), right? And perhaps also with dummy_hcd (if I understand correctly what it's doing)?