From: Joonsoo Kim <iamjoonsoo.kim@lge.com>
To: Alexander Potapenko <glider@google.com>
Cc: adech.fo@gmail.com, cl@linux.com, dvyukov@google.com,
akpm@linux-foundation.org, ryabinin.a.a@gmail.com,
rostedt@goodmis.org, kasan-dev@googlegroups.com,
linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: [PATCH v1 5/8] mm, kasan: Stackdepot implementation. Enable stackdepot for SLAB
Date: Thu, 28 Jan 2016 16:40:51 +0900 [thread overview]
Message-ID: <20160128074051.GA15426@js1304-P5Q-DELUXE> (raw)
In-Reply-To: <a6491b8dfc46299797e67436cc1541370e9439c9.1453918525.git.glider@google.com>
Hello,
On Wed, Jan 27, 2016 at 07:25:10PM +0100, Alexander Potapenko wrote:
> Stack depot will allow KASAN store allocation/deallocation stack traces
> for memory chunks. The stack traces are stored in a hash table and
> referenced by handles which reside in the kasan_alloc_meta and
> kasan_free_meta structures in the allocated memory chunks.
Looks really nice!
Could it be more generalized to be used by other feature that need to
store stack trace such as tracepoint or page owner?
If it could be, there is one more requirement.
I understand the fact that entry is never removed from depot makes things
very simpler, but, for general usecases, it's better to use reference count
and allow to remove. Is it possible?
Thanks.
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next prev parent reply other threads:[~2016-01-28 7:40 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-27 18:25 [PATCH v1 0/8] SLAB support for KASAN Alexander Potapenko
2016-01-27 18:25 ` [PATCH v1 1/8] kasan: Change the behavior of kmalloc_large_oob_right test Alexander Potapenko
2016-02-02 5:34 ` Andrew Morton
2016-02-02 15:29 ` Andrey Ryabinin
2016-02-02 16:25 ` Alexander Potapenko
2016-02-15 14:05 ` Alexander Potapenko
2016-01-27 18:25 ` [PATCH v1 2/8] mm, kasan: SLAB support Alexander Potapenko
2016-01-28 7:44 ` Joonsoo Kim
2016-01-28 12:37 ` Alexander Potapenko
2016-01-28 13:29 ` Alexander Potapenko
2016-02-01 2:15 ` Joonsoo Kim
2016-02-18 12:58 ` Alexander Potapenko
2016-02-19 1:41 ` Joonsoo Kim
2016-02-19 12:57 ` Alexander Potapenko
2016-01-27 18:25 ` [PATCH v1 3/8] mm, kasan: Added GFP flags to KASAN API Alexander Potapenko
2016-01-27 18:25 ` [PATCH v1 4/8] arch, ftrace: For KASAN put hard/soft IRQ entries into separate sections Alexander Potapenko
2016-01-28 14:53 ` Steven Rostedt
2016-01-29 11:33 ` Alexander Potapenko
2016-01-29 11:59 ` Alexander Potapenko
2016-01-29 14:45 ` Steven Rostedt
2016-02-16 15:32 ` Alexander Potapenko
2016-01-27 18:25 ` [PATCH v1 5/8] mm, kasan: Stackdepot implementation. Enable stackdepot for SLAB Alexander Potapenko
2016-01-28 7:40 ` Joonsoo Kim [this message]
2016-01-28 12:51 ` Alexander Potapenko
2016-01-28 13:27 ` Alexander Potapenko
2016-02-01 2:55 ` Joonsoo Kim
2016-02-16 18:37 ` Alexander Potapenko
2016-02-17 18:29 ` Alexander Potapenko
2016-02-18 8:13 ` Joonsoo Kim
2016-02-18 15:01 ` Alexander Potapenko
2016-02-18 7:58 ` Joonsoo Kim
2016-01-27 18:25 ` [PATCH v1 6/8] kasan: Test fix: Warn if the UAF could not be detected in kmalloc_uaf2 Alexander Potapenko
2016-01-27 18:25 ` [PATCH v1 7/8] kasan: Changed kmalloc_large_oob_right, added kmalloc_pagealloc_oob_right Alexander Potapenko
2016-01-27 18:25 ` [PATCH v1 8/8] mm: kasan: Initial memory quarantine implementation Alexander Potapenko
2016-02-01 2:47 ` Joonsoo Kim
2016-02-18 14:06 ` Alexander Potapenko
2016-02-19 2:11 ` Joonsoo Kim
2016-02-19 9:19 ` Dmitry Vyukov
2016-02-19 15:43 ` Christoph Lameter
2016-02-23 7:23 ` Joonsoo Kim
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