Subject: Re: [PATCH v11 net-next 00/12] eBPF syscall, verifier, testsuite

From: Daniel Borkmann <[email-masked]>
Date: Thu, 11 Sep 2014 21:54:09 +0200

On 09/10/2014 10:21 PM, Alexei Starovoitov wrote:
...
>>>                char bpf_log_buf[LOG_BUF_SIZE];
>>
>> What happens if the size isn't LOG_BUF_SIZE?
>
> would do you mean?
> LOG_BUF_SIZE is just a user defined macro.
> Can be anything.

I believe, Andy means, what would happen if log_level > 0 but
the log_size is not big enough so that the human-readable error
text string from the verifier will fit into it? I presume that
will be truncated then ... hm.

> it's passed along with pointer:
>                         .log_buf = bpf_log_buf,
>                         .log_size = LOG_BUF_SIZE,
>                         .log_level = 1,