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Groups > linux.kernel > #1318048
| From | Joonsoo Kim <js1304@gmail.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [RFC][PATCH 0/3] Speed up SLUB poisoning + disable checks |
| Date | 2016-01-26 16:30 +0100 |
| Message-ID | <qVdJ8-5Zk-3@gated-at.bofh.it> (permalink) |
| References | <qV0sy-46L-5@gated-at.bofh.it> <qV5Vg-kA-9@gated-at.bofh.it> <qVdpM-5RZ-17@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
2016-01-27 0:01 GMT+09:00 Christoph Lameter <cl@linux.com>: > On Tue, 26 Jan 2016, Joonsoo Kim wrote: > >> I doesn't follow up that discussion, but, I think that reusing >> SLAB_POISON for slab sanitization needs more changes. I assume that >> completeness and performance is matter for slab sanitization. >> >> 1) SLAB_POISON isn't applied to specific kmem_cache which has >> constructor or SLAB_DESTROY_BY_RCU flag. For debug, it's not necessary >> to be applied, but, for slab sanitization, it is better to apply it to >> all caches. > > Those slabs can be legitimately accessed after the objects were freed. You > cannot sanitize nor poison. Oops... you are right. I misunderstand what SLAB_DESTROY_BY_RCU is. Now, it's clear to me. Thanks.
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[RFC][PATCH 0/3] Speed up SLUB poisoning + disable checks Laura Abbott <labbott@fedoraproject.org> - 2016-01-26 02:20 +0100
[RFC][PATCH 1/3] slub: Drop lock at the end of free_debug_processing Laura Abbott <labbott@fedoraproject.org> - 2016-01-26 02:20 +0100
Re: [RFC][PATCH 1/3] slub: Drop lock at the end of free_debug_processing Christoph Lameter <cl@linux.com> - 2016-01-26 17:20 +0100
[RFC][PATCH 2/3] slub: Don't limit debugging to slow paths Laura Abbott <labbott@fedoraproject.org> - 2016-01-26 02:20 +0100
Re: [RFC][PATCH 2/3] slub: Don't limit debugging to slow paths Paul Bolle <pebolle@tiscali.nl> - 2016-01-26 09:50 +0100
Re: [RFC][PATCH 0/3] Speed up SLUB poisoning + disable checks Joonsoo Kim <iamjoonsoo.kim@lge.com> - 2016-01-26 08:10 +0100
Re: [RFC][PATCH 0/3] Speed up SLUB poisoning + disable checks Christoph Lameter <cl@linux.com> - 2016-01-26 16:10 +0100
Re: [RFC][PATCH 0/3] Speed up SLUB poisoning + disable checks Joonsoo Kim <js1304@gmail.com> - 2016-01-26 16:30 +0100
Re: [RFC][PATCH 0/3] Speed up SLUB poisoning + disable checks Christoph Lameter <cl@linux.com> - 2016-01-26 16:00 +0100
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