On 10/03/14 16:40, H. Peter Anvin wrote: > On 03/10/2014 09:17 AM, David Vrabel wrote: >> math_state_restore() is called from the #NM exception handler. It may >> do a GFP_KERNEL allocation (in init_fpu()) which may schedule. >> >> Change this allocation to GFP_ATOMIC, but leave all the other callers >> of init_fpu() or fpu_alloc() using GFP_KERNEL. > > And what the [Finnish] do you do if GFP_ATOMIC fails?
The same thing it used to do -- kill the task with SIGKILL. I haven't changed this behaviour. > Sarah's patchset switches Xen PV to use eagerfpu unconditionally, which > removes the dependency on #NM and is the right thing to do. Ok. I'll wait for this series and not pursue this patch any further. David -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/