Re: [PATCH -mm] Don't truncate /proc/PID/environ at 4096 characters

H. Peter Anvin
2007-09-19T16:03:14Z

Mikael Pettersson wrote:
> On Wed, 19 Sep 2007 14:35:29 +0100, James Pearson wrote:
>> /proc/PID/environ currently truncates at 4096 characters, patch based on
>> the /proc/PID/mem code.
>
> Does /proc/PID/mem even work? If I do `strace cat /proc/PID/mem > /dev/null'
> for a known good PID, the first read() from /proc/PID/mem fails with ESRCH,

Of course it does. Address zero isn't typically mapped.

-hpa