Re: [PATCH] proc: fix PAGE_SIZE limit of /proc/$PID/cmdline

[Alexey Dobriyan]

On Wed, Mar 25, 2015 at 12:42 AM, Andrew Morton
<akpm@xxxxxxxxxxxxxxxxxxxx> wrote:
> On Fri, 20 Mar 2015 20:51:47 +0300 Alexey Dobriyan <adobriyan@xxxxxxxxx> wrote:
>> /proc/$PID/cmdline truncates output at PAGE_SIZE. It is easy to see with

> I'm desperately trying to think of a reason to not merge this patch :(
>
> I haven't seen anyone complain about the PAGE_SIZE limit - can't we
> pretend we didn't notice?  Or tell 'em to switch to powerpc so they
> get 64k!

Well, people do notice the limitation
http://stackoverflow.com/questions/199130/how-do-i-increase-the-proc-pid-cmdline-4096-byte-limit

I think public interface should work 100% of the time.

setproctitle(2) can be added with documented 4KB limit.

    Alexey
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