On Tue, Jun 04, 2019 at 07:54:12PM +0200, Christoph Hellwig wrote: > current->mm can be non-NULL if a kthread calls use_mm. Check for > PF_KTHREAD instead to decide when to store user mode FP state. > > Fixes: 2722146eb784 ("x86/fpu: Remove fpu->initialized") > Reported-by: Peter Zijlstra <pet...@infradead.org> > Signed-off-by: Christoph Hellwig <h...@lst.de> > --- > arch/x86/include/asm/fpu/internal.h | 6 +++--- > arch/x86/kernel/fpu/core.c | 3 ++- > 2 files changed, 5 insertions(+), 4 deletions(-)
I had to take this one first because of the Fixes: tag and expedite it through tip:x86/urgent. Check the tip-bot notification mail whether it is still ok. I'll redo the other ones ontop, or you can if you feel bored. :) Thx. -- Regards/Gruss, Boris. Good mailing practices for 400: avoid top-posting and trim the reply.