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Re: [Xen-users] upgrade to centos 5.3 and see blkback.<nn>.sda<n> on 'p

To: Xen Users <xen-users@xxxxxxxxxxxxxxxxxxx>
Subject: Re: [Xen-users] upgrade to centos 5.3 and see blkback.<nn>.sda<n> on 'ps aux'
From: "Fajar A. Nugraha" <fajar@xxxxxxxxx>
Date: Sun, 12 Apr 2009 08:04:47 +0700
Delivery-date: Sat, 11 Apr 2009 18:05:33 -0700
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On Sat, Apr 11, 2009 at 3:21 AM, Markus Hardiyanto
<informatics2k1@xxxxxxxxx> wrote:
> after updating i starting to see this when running 'ps aux' command:
> root     15666  0.0  0.0      0     0 ?        S<   02:39   0:00 
> [blkback.17.sda1]
> root     15667  0.0  0.0      0     0 ?        S<   02:39   0:00 
> [blkback.17.sda2]

> google search doesn't help much, some of the search result said that they 
> have problem with the networking, however all the domU on my server seems to 
> be working normal. what is blkback anyway? is this normal processes? if not 
> how to fix it?

It's normal. If you're still curious, try "rpm -q --changelog kernel-xen"

* Fri Jul 25 2008 Don Zickus <dzickus@xxxxxxxxxx> [2.6.18-100.el5]
- [xen] rename blktap kernel threads to blktap.dom.blkname (Chris
Lalancette ) [250104]

which leads to


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