On 09/26/2018 08:24 AM, Alexander Duyck wrote:
With no options it works just like slub_debug and enables all
available options. So in our case it is a NOP since we wanted the
debugging enabled by default.
Yeah, but slub_debug is different.
First, nobody uses the slub_debug=- option because *that* is only used
when you have SLUB_DEBUG=y *and* CONFIG_SLUB_DEBUG_ON=y, which not even
slub_debug is *primarily* for *adding* debug features. For this, we
need to turn them off.
It sounds like following slub_debug was a bad idea, especially following
its semantics too closely when it doesn't make sense.