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From: "Robert N. M. Watson" <rwatson@FreeBSD.org>
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To: Mikolaj Golub <trociny@freebsd.org>
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Cc: freebsd-hackers@freebsd.org, Kostik Belousov <kib@FreeBSD.org>
Subject: Re: a sysctl for process binary osreldate
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On 17 Mar 2012, at 19:30, Mikolaj Golub wrote:

> Currently we can check and change binary osreldate of another process =
via
> procfs(5).
>=20
> Kostik suggested to add a new sysctl for the same purpose and also =
extend
> procstat to show osrel.
>=20
> Here are patches I am going to commit if there are no objections or
> suggestions.
>=20
> http://people.freebsd.org/~trociny/kern_proc_osrel.1.patch
> http://people.freebsd.org/~trociny/procstat.osrel.1.patch
>=20
> I set the same permissions as for procfs(5) osrel -- so only user can =
read it,
> but may be this is too restrictive and p_cansee on read would be ok?
>=20
> I added osrel output to procstat -b option:
>=20
> kopusha:~% procstat -b 2975
>  PID COMM                OSREL PATH
> 2975 emacs             1000001 /usr/local/bin/emacs-23.3
>=20
> Would this be ok or someone see a better way?


Support for writing the field seems to violate the synchronisation =
protocol defined for p_osrel in proc.h. In the new world order, is this =
simply a documentation bug, or is it also a software bug?

Robert=