linux-kernel - [PATCH 0/3] slub: Print non-hashed pointers in slub debugging

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Date:   Wed, 19 May 2021 18:35:36 -0700
From:   Stephen Boyd <swboyd@...omium.org>
To:     Andrew Morton <akpm@...ux-foundation.org>
Cc:     linux-kernel@...r.kernel.org, Christoph Lameter <cl@...ux.com>,
        Pekka Enberg <penberg@...nel.org>,
        David Rientjes <rientjes@...gle.com>,
        Joonsoo Kim <iamjoonsoo.kim@....com>,
        Vlastimil Babka <vbabka@...e.cz>, linux-mm@...ck.org
Subject: [PATCH 0/3] slub: Print non-hashed pointers in slub debugging

I was doing some debugging recently and noticed that my pointers were
being hashed while slub_debug was on the kernel commandline. Let's make
the prints in here meaningful in that case by pushing %px throughout.

Alternatively, we could force on no_hash_pointers if slub_debug is on
the commandline. Maybe that would be better?

The final patch is just something else I noticed while looking at the
code. The message argument is never used so the debugging messages are
not as clear as they could be.

Stephen Boyd (3):
  lib/hexdump: Add a raw pointer printing format for slub debugging
  slub: Print raw pointer addresses when debugging
  slub: Actually use 'message' in restore_bytes()

 include/linux/printk.h |  1 +
 lib/hexdump.c          | 12 ++++++++++--
 mm/slub.c              | 24 ++++++++++++------------
 3 files changed, 23 insertions(+), 14 deletions(-)

base-commit: 6efb943b8616ec53a5e444193dccf1af9ad627b5
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