> Subject: Re: [PATCH v4 04/23] x86/mm: Save DRs when loading a temporary mm s/DRs/debug registers/ On Mon, Apr 22, 2019 at 11:57:46AM -0700, Rick Edgecombe wrote: > From: Nadav Amit <namit@xxxxxxxxxx> > > Prevent user watchpoints from mistakenly firing while the temporary mm > is being used. As the addresses that of the temporary mm might overlap s/that // > those of the user-process, this is necessary to prevent wrong signals > or worse things from happening. > > Cc: Andy Lutomirski <luto@xxxxxxxxxx> > Signed-off-by: Nadav Amit <namit@xxxxxxxxxx> > Signed-off-by: Rick Edgecombe <rick.p.edgecombe@xxxxxxxxx> > --- > arch/x86/include/asm/mmu_context.h | 23 +++++++++++++++++++++++ > 1 file changed, 23 insertions(+) -- Regards/Gruss, Boris. Good mailing practices for 400: avoid top-posting and trim the reply.