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When enabled, objects picked from the cache are checked for corruption by comparing their contents against a pattern that was placed when they were inserted into the cache. Objects are also allocated in the reverse order, from the oldest one to the most recent, so as to maximize the ability to detect such a corruption. The goal is to detect writes after free (or possibly hardware memory corruptions). Contrary to DEBUG_UAF this cannot detect reads after free, but may possibly detect later corruptions and will not consume extra memory. The CPU usage will increase a bit due to the cost of filling/checking the area and for the preference for cold cache instead of hot cache, though not as much as with DEBUG_UAF. This option is meant to be usable in production. |
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| .. | ||
| buffer-api.txt | ||
| filters.txt | ||
| htx-api.txt | ||
| initcalls.txt | ||
| ist.txt | ||
| list.txt | ||
| pools.txt | ||
| scheduler.txt | ||