hyc@symas.com writes:

Nobody uses the pool code. I would suggest you profile it against the stack code before spending any time fixing it.

The pool version crashes if I divide SLAP_SLAB_SIZE by 16 or multiply the allocated amounts by 17. The stack version stays happy. I also tried RE23 and rev 1.48 in case of code rot. (Should have tried OpenLDAP 2.2, but would need to install an old Berkeley DB.) Adding a sl_malloc fallback to ch_malloc instead of returning NULL didn't help.

Anyway, I tried this because I assume the pool version is intended to reduce the number of sl_malloc fallbacks to ch_malloc, but that almost never happens in 'make test' with the current SLAP_SLAB_SIZE. Which made that aspect hard to test.

Also the pool version does a number of ch_mallocs for administration and ch_frees them at reset. If the idea is to reduce ch_mallocs, it should keep these blocks around. (Or allocate them with the slab.) Except the 'slab_object's It only needs cleanup if the slab size changes, which slapd never seems to do.