On Thu, 30 Jan 2014, Sasha Levin wrote: > VM_BUG_ON_PAGE is just a VM_BUG_ON that does dump_page before the BUG(). > > The only reason to use VM_BUG_ON instead of VM_BUG_ON_PAGE is if the page > you're working > with doesn't make sense/isn't useful as debug output. > > If doing a dump_page is causing issues somewhere then dump_pages should be > fixed - instead > of hiding the problem under the rug by not using it. >
It sounds like dump_page() isn't necessarily at fault itself but rather that using it is opening a race even wider that causes this failure to occur more often than it normally would. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
