linux-kernel - Re: [PATCH 2/2] sysctl: remove sysctl syscall

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <4CBE80F1.5080003@redhat.com>
Date:	Wed, 20 Oct 2010 13:41:05 +0800
From:	Cong Wang <amwang@...hat.com>
To:	Andi Kleen <ak@...ux.intel.com>
CC:	Andreas Schwab <schwab@...hat.com>, linux-kernel@...r.kernel.org,
	Randy Dunlap <rdunlap@...otime.net>,
	Mauro Carvalho Chehab <mchehab@...hat.com>,
	Len Brown <len.brown@...el.com>, Ingo Molnar <mingo@...e.hu>,
	Andrew Morton <akpm@...ux-foundation.org>,
	David Howells <dhowells@...hat.com>,
	Eric Paris <eparis@...hat.com>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Eric Dumazet <eric.dumazet@...il.com>,
	"David S. Miller" <davem@...emloft.net>,
	Andy Shevchenko <ext-andriy.shevchenko@...ia.com>,
	linux-doc@...r.kernel.org
Subject: Re: [PATCH 2/2] sysctl: remove sysctl syscall

On 10/19/10 23:05, Andi Kleen wrote:
> On 10/19/2010 4:10 PM, Andreas Schwab wrote:
>>> On 10/19/2010 10:22 AM, Amerigo Wang wrote:
>>>> Remove the obsolete sysctl syscall. It was scheduled
>>>> to be removed in Sept.
>>>
>>> I thought at least older glibc was still using it? Did anyone check
>>> what happens if it sees no sysctl(2)?
>> It will fall back reading from /proc/sys.
>
> First that's slow (but ok), but that will fail if there is no /proc.
>

I strongly doubt glibc will work if there is no /proc,
a quick grep shows lots of "/proc" strings in glibc code.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/