d7854da193
zones for each malloc bucket size. The purpose is to isolate different malloc types into hash classes, so that any buffer overruns or use-after-free will usually only affect memory from malloc types in that hash class. This is purely a debugging tool; by varying the hash function and tracking which hash class was corrupted, the intersection of the hash classes from each instance will point to a single malloc type that is being misused. At this point inspection or memguard(9) can be used to catch the offending code. Add MALLOC_DEBUG_MAXZONES=8 to -current GENERIC configuration files. The suggestion to have this on by default came from Kostik Belousov on -arch. This code is based on work by Ron Steinke at Isilon Systems. Reviewed by: -arch (mostly silence) Reviewed by: zml Approved by: zml (mentor) |
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| aim | ||
| booke | ||
| compile | ||
| conf | ||
| cpufreq | ||
| fpu | ||
| include | ||
| mpc85xx | ||
| ofw | ||
| powermac | ||
| powerpc | ||
| psim | ||