From: Stephen Boyd <swboyd@chromium.org>
To: Muchun Song <songmuchun@bytedance.com>, Vlastimil Babka <vbabka@suse.cz>
Cc: Andrew Morton <akpm@linux-foundation.org>,
LKML <linux-kernel@vger.kernel.org>,
Christoph Lameter <cl@linux.com>,
Pekka Enberg <penberg@kernel.org>,
David Rientjes <rientjes@google.com>,
Joonsoo Kim <iamjoonsoo.kim@lge.com>,
Linux Memory Management List <linux-mm@kvack.org>,
Petr Mladek <pmladek@suse.com>, Joe Perches <joe@perches.com>
Subject: Re: [External] [PATCH v2 1/4] slub: Restore slub_debug=- behavior
Date: Wed, 26 May 2021 16:20:16 -0400 [thread overview]
Message-ID: <CAE-0n512-XLKetgOo61reSBu=27zTttC1YK2iRjNuGrLBu+q5w@mail.gmail.com> (raw)
In-Reply-To: <d6a4c360-0bbc-e36f-0824-04562c92f411@suse.cz>
Quoting Vlastimil Babka (2021-05-26 03:39:54)
> On 5/26/21 6:04 AM, Muchun Song wrote:
> > On Wed, May 26, 2021 at 10:56 AM Stephen Boyd <swboyd@chromium.org> wrote:
> >>
> >> Passing slub_debug=- on the kernel commandline is supposed to disable
> >> slub debugging. This is especially useful with CONFIG_SLUB_DEBUG_ON
> >> where the default is to have slub debugging enabled in the build. Due to
> >> some code reorganization this behavior was dropped, but the code to make
> >> it work mostly stuck around. Restore the previous behavior by disabling
> >> the static key when we parse the commandline and see that we're trying
> >> to disable slub debugging.
> >>
> >> Cc: Vlastimil Babka <vbabka@suse.cz>
> >> Fixes: e17f1dfba37b ("mm, slub: extend slub_debug syntax for multiple blocks")
>
> Acked-by: Vlastimil Babka <vbabka@suse.cz>
>
> >
> > Is it caused by the commit ca0cab65ea2b ("mm, slub: introduce static
> > key for slub_debug()")?
>
> Yep, looks like a better Fixes: candidate.
>
Fixed it. Thanks.
next prev parent reply other threads:[~2021-05-26 20:20 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-26 2:56 [PATCH v2 0/4] slub: Print non-hashed pointers in slub debugging Stephen Boyd
2021-05-26 2:56 ` [PATCH v2 1/4] slub: Restore slub_debug=- behavior Stephen Boyd
2021-05-26 4:04 ` [External] " Muchun Song
2021-05-26 10:39 ` Vlastimil Babka
2021-05-26 20:20 ` Stephen Boyd [this message]
2021-05-27 2:51 ` Muchun Song
2021-05-26 2:56 ` [PATCH v2 2/4] slub: Actually use 'message' in restore_bytes() Stephen Boyd
2021-05-26 3:29 ` [External] " Muchun Song
2021-05-26 2:56 ` [PATCH v2 3/4] slub: Indicate slab_fix() uses printf formats Stephen Boyd
2021-05-26 10:40 ` Vlastimil Babka
2021-05-26 2:56 ` [PATCH v2 4/4] slub: Force on no_hash_pointers when slub_debug is enabled Stephen Boyd
2021-05-26 5:40 ` kernel test robot
2021-05-26 7:54 ` kernel test robot
2021-05-26 10:48 ` Vlastimil Babka
2021-05-26 13:47 ` Petr Mladek
2021-05-26 19:27 ` Stephen Boyd
2021-05-31 9:28 ` Petr Mladek
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