Messages in this thread | | | From | Kees Cook <> | Date | Thu, 7 Dec 2017 10:43:09 -0800 | Subject | Re: [PATCH] mm/slab: Do not hash pointers when debugging slab |
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On Thu, Dec 7, 2017 at 3:13 AM, Christopher Lameter <cl@linux.com> wrote: > On Thu, 7 Dec 2017, Geert Uytterhoeven wrote: > >> If CONFIG_DEBUG_SLAB/CONFIG_DEBUG_SLAB_LEAK are enabled, the slab code >> prints extra debug information when e.g. corruption is detected. >> This includes pointers, which are not very useful when hashed. >> >> Fix this by using %px to print unhashed pointers instead. > > Acked-by: Christoph Lameter <cl@linux.com> > > These SLAB config options are only used for testing so this is ok.
Most systems use SLUB so I can't say how common CONFIG_DEBUG_SLAB is. (Though, FWIW with SLUB, CONFIG_SLUB_DEBUG is very common.)
-Kees
-- Kees Cook Pixel Security
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