In <5l7lh8r66z.fsf@tequila.cs.yale.edu> Stefan Monnier (monnier+lists/linux/kernel/news/@tequila.cs.yale.edu) wrote:
>>>>>> "Stephen" == Stephen Frost <sfrost@mail.snowman.net> writes:
>> Of course, who wants to type in a 20 digit number? :) I suppose if
>> you feel the need for security that badly you could patch the kernel to use
>> a 64bit PID space, and just panic when you run out, based on the assumption
>> that something _very_ bad is happening if you run out. :)
> `no wrap around' is not the only answer.
> You could instead fix the problem at the source:
> allow a potential killer to hold on to a process (preventing its
> entry from being reused) just like the parent already does it (leaving
> the child in zombie state until it is reaped).
> This way you could do
> > ps aux | grep foobar
> 1234 10:23 foobar
> > grab 1234
> > ps aux | grep 1234
> 1234 10:23 foobar
> > kill 1234
Interesting question: will `cd /proc/1234' work as `grab 1234' or not ?
I'm not know kernel internals enough to answer but to me it looks like
logical thing to do.
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