On Mon, Mar 16, 2015 at 12:12:54PM +0100, Christian Borntraeger wrote: > Am 16.03.2015 um 12:00 schrieb Kirill A. Shutemov: > > On Mon, Mar 16, 2015 at 09:37:01AM +0100, Christian Borntraeger wrote: > >> while debugging a memory management problem it helped a lot to > >> get a system dump as early as possible for bad page states. > >> > >> Lets assume that if panic_on_oops is set then the system should > >> not continue with broken mm data structures. > > > > bed_pte is not an oops. > > I know that this is not an oops, but semantically it is like one. I certainly > want to a way to hard stop the system if something like that happens. > > Would something like panic_on_mm_error be better? Or panic_on_taint=<mask> where <mask> is bit-mask of TAINT_* values. The problem is that TAINT_* will effectevely become part of kernel ABI and I'm not sure it's good idea. Oopsing on any taint will have limited usefulness, I think. -- Kirill A. Shutemov -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>