Guanzhong Chen

Results 55 comments of Guanzhong Chen

Now, everywhere we use `kill`, i.e. shocker, protection faults, we have to kill by `pgid`, which for `cptbox`-based process trees is `-pid` of the first child. (Even though `monitor` does...

Debian/kFreeBSD `jessie` does not have `PT_FOLLOW_FORK` defined. However, passing `23` works.

Warning: this is likely to end up opening some security hole, so we should test it throughly before thinking about adding it to the site.

Some notes: - scripts should probably have write access to the current directory to be useful, but there is no way to stop it from using up all the disk...

By the way, the original point of `TOTP_CODE_LENGTH` was to make it obvious that 6 is TOTP in `two_factor_validators_by_length`.

> Maybe a silly suggestion, but could we fix a smaller issue and only not strip the trailing NL? No. You don't want COBOL users to fail to compile if...

This requires site-side change, since batches just numbers attached to `SubmissionTestCase` objects.

What do you mean by "so long as no shared memory was mapped by the submission"? All threads share the entire address space?

[Relevant research paper](http://www.watson.org/~robert/2007woot/2007usenixwoot-exploitingconcurrency.pdf).

I don't think storing this as a JSON blob in the `description` field is exactly an awesome idea. We might need to put stuff like distro, memory, cpu count and...