Thanks for your reply! > Limit max size of ramfs. It's no use using size to limit the size of ramfs. "mount -t ramfs -o size=10M ramfs /ramfs" is the command i use. > > The comments already explains why kernel should panic on this situation: > /* > * If we got here due to an actual allocation at the > * system level, we cannot survive this and will enter > * an endless loop in the allocator. Bail out now. > */ But it causes panic, actually , I don't want it panics