Re: [vserver] Concurrency issue in /proc?

From: Patrick LeBoutillier <patrick.leboutillier_at_gmail.com>
Date: Mon 05 Jul 2010 - 19:10:47 BST
Message-ID: <AANLkTikfzX3fovT3f0febcHsn1JJaY2VmxySeW96oSLw@mail.gmail.com>

Hi,

I tried with util-vserver and I can't reproduce the problem either on
an 8 core server.

However I noticed that Jacque's tools mount /proc once for each vserver:

none on /vservers/v1/proc type proc (rw)
none on /vservers/v2/proc type proc (rw)
none on /vservers/v3/proc type proc (rw)

However with util-vserver from the root server I don't see extra
mounts for /proc.

How is /proc made visible inside the guest?

Patrick

On Fri, Jul 2, 2010 at 6:17 AM, Oliver Heinz <oheinz@fbihome.de> wrote:
> Am Donnerstag, 1. Juli 2010 18:33:38 schrieb Patrick LeBoutillier:
> ...
>> > I tried here (to recreate the issue) with a dual core
>> > cpu (kernel 2.6.33.x) but couldn't reproduce ....
>>
>> I ran this kernel for months on dual cores with no problems that I
>> noticed. But since I migrated a few servers to 8 cores (2 quads) I
>> started experiencing this problem. I don't know if any other vserver
>> users have access to similar hardware.
>
> I just tried to reproduce on an Dual Intel  Xeon X5550 Quadcore CPU System.
>
> No errors here.
>
> Kernel: 2.6.32.10-grsec2.1.14-vs2.3.0.36.29.2
> Vserver-utils: 0.30.216~r2844
>
>
> Bye,
> Oliver
>

-- 
=====================
Patrick LeBoutillier
Rosemère, Québec, Canada
Received on Mon Jul 5 19:11:39 2010
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