From: "H. Peter Anvin" <hpa@zytor.com>
To: Alexey Vlasov <renton@renton.name>
Cc: Ray Lee <ray-lk@madrabbit.org>,
Andrew Morton <akpm@linux-foundation.org>,
linux-kernel@vger.kernel.org
Subject: Re: devpts mounts too slowly
Date: Tue, 07 Jul 2009 08:37:48 -0700 [thread overview]
Message-ID: <4A536BCC.6030504@zytor.com> (raw)
In-Reply-To: <20090707083853.GC7484@beaver.vrungel.ru>
Alexey Vlasov wrote:
> On Mon, Jul 06, 2009 at 02:21:51PM -0700, H. Peter Anvin wrote:
>> Do you have /selinux mounted on one of them?
>
> I don't use SELinux anywhere.
>
That's, apparently, the problem: some version of the mount binary will
search all of /proc/mounts for selinux if it isn't mounted on /selinux.
This is a serious performance bug, obviously.
-hpa
--
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel. I don't speak on their behalf.
prev parent reply other threads:[~2009-07-07 15:38 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-06-03 14:28 devpts mounts too slowly Alexey Vlasov
2009-06-03 21:28 ` H. Peter Anvin
2009-06-09 23:19 ` Andrew Morton
2009-06-09 23:30 ` Ray Lee
2009-06-09 23:53 ` Andrew Morton
2009-06-10 0:07 ` H. Peter Anvin
2009-06-10 20:51 ` H. Peter Anvin
2009-06-24 20:01 ` Al Viro
2009-06-24 21:58 ` Andrew Morton
2009-06-24 23:02 ` H. Peter Anvin
2009-06-10 0:02 ` H. Peter Anvin
2009-07-06 19:52 ` Alexey Vlasov
2009-07-06 20:03 ` Alexey Vlasov
2009-07-06 21:21 ` H. Peter Anvin
2009-07-07 8:38 ` Alexey Vlasov
2009-07-07 15:37 ` H. Peter Anvin [this message]
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