git: kernel - Add options SLAB_DEBUG to help debug memory corrup
commit bbb201fd4d8144ecdb2817594a8eb79f1cd74062
Author: Matthew Dillon <dillon@apollo.backplane.com>
Date: Tue Feb 15 11:37:38 2011 -0800
kernel - Add options SLAB_DEBUG to help debug memory corruption
* Adding options SLAB_DEBUG to your kernel config will reconfigure
kmalloc(), krealloc(), and kstrdup() to record all allocation
sources on a zone-by-zone basis, file and line number.
A full kernel recompile is needed when you add or drop this option
from your kernel config.
* Limited to 32 slots per slab. Since slabs offer a narrow range of
chunk sizes this will normally be sufficient.
* When a memory corruption related panic occurs kgdb can be used
to determine who allocated out of the slab in question.
Summary of changes:
sys/conf/options | 1 +
sys/kern/kern_slaballoc.c | 67 ++++++++++++++++++++++++++++++++++++++++++---
sys/sys/malloc.h | 24 +++++++++++++++-
sys/sys/slaballoc.h | 16 +++++++++++
4 files changed, 103 insertions(+), 5 deletions(-)
http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/bbb201fd4d8144ecdb2817594a8eb79f1cd74062
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