On Wed, Apr 3, 2019 at 10:36 AM Khalid Aziz <khalid.aziz@xxxxxxxxxx> wrote: > > From: Tycho Andersen <tycho@xxxxxxxx> > > Oopsing might kill the task, via rewind_stack_do_exit() at the bottom, and > that might sleep: > > diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c > index 9d5c75f02295..7891add0913f 100644 > --- a/arch/x86/mm/fault.c > +++ b/arch/x86/mm/fault.c > @@ -858,6 +858,12 @@ no_context(struct pt_regs *regs, unsigned long error_code, > /* Executive summary in case the body of the oops scrolled away */ > printk(KERN_DEFAULT "CR2: %016lx\n", address); > > + /* > + * We're about to oops, which might kill the task. Make sure we're > + * allowed to sleep. > + */ > + flags |= X86_EFLAGS_IF; > + > oops_end(flags, regs, sig); > } > NAK. If there's a bug in rewind_stack_do_exit(), please fix it in rewind_stack_do_exit().
