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[docs] FAQ: fix honggfuzz info and add a question about corpora use. (#3410)

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@ -54,7 +54,6 @@ your own environment and run continuously at scale.
OSS-Fuzz is a production instance of ClusterFuzz, plus the code living in
[OSS-Fuzz repository]: build scripts, `project.yaml` files with contacts, etc.
[ClusterFuzz]: https://github.com/google/clusterfuzz
[OSS-Fuzz repository]: https://github.com/google/oss-fuzz
## Why do you use a [different issue tracker](https://bugs.chromium.org/p/oss-fuzz/issues/list) for reporting bugs in OSS projects?
@ -163,23 +162,25 @@ target (instructions to download
restore it to the new GCS location later (instruction to find the
new location [here]({{ site.baseurl }}/advanced-topics/corpora/#viewing-the-corpus-for-a-fuzz-target)).
## Does OSS-Fuzz support AFL?
OSS-Fuzz *uses* [AFL](http://lcamtuf.coredump.cx/afl/) as one of its
[fuzzing engines]({{ site.baseurl }}/reference/glossary/#fuzzing-engine) but this is an implementation
detail. Just follow the
## Does OSS-Fuzz support AFL or honggfuzz?
OSS-Fuzz *uses* both [AFL](http://lcamtuf.coredump.cx/afl/) and
[honggfuzz](https://github.com/google/honggfuzz)
[fuzzing engines]({{ site.baseurl }}/reference/glossary/#fuzzing-engine).
Follow the
[ideal integration guide]({{ site.baseurl }}/advanced-topics/ideal-integration/)
and OSS-Fuzz will use all its fuzzing engines on your code.
## Does OSS-Fuzz support Honggfuzz?
OSS-Fuzz (the service) does not use honggfuzz to find bugs.
That is because [ClusterFuzz](https://github.com/google/clusterfuzz)
(the infrastructure OSS-Fuzz runs on) does not support honggfuzz.
However, OSS-Fuzz supports **building** fuzz targets for use with honggfuzz,
similar to the way it supports [AFL](#does-oss-fuzz-support-afl).
Currently OSS-Fuzz builders do builds for libFuzzer, AFL, and honggfuzz.
## What are the specs on your machines?
OSS-Fuzz builders have 32CPU/28.8GB RAM.
Fuzzing machines only have a single core and fuzz targets should not use more
than 2.5GB of RAM.
## Are there any restrictions on using test cases / corpora generated by OSS-Fuzz?
No, you can freely use (i.e. share, add to your repo, etc.) the test cases and
corpora generated by OSS-Fuzz. OSS-Fuzz infrastructure is fully open source
(including [ClusterFuzz], various fuzzing engines, and other dependencies). We
have no intent to restrict the use of the artifacts produced by OSS-Fuzz.
[ClusterFuzz]: https://github.com/google/clusterfuzz