Kernel bug in software RAID?

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This but wouldn't cause my Proliant to fail to resync a RAID array after a
reboot following the Centos-4 install would it?

I have just rebooted and get a message that the array is not clean, both
drives are accessed and then for the second (IDE) drive I get:

Hde: drive not ready for command.

Then the system hangs.

The install went fine albeit very slowly - I presumed this was because the
OS was being installed on a software RAID 1 pair and it was resyncing as it
installed. Having said that I installed Centos-4 on a 300GB SATA RAID 1 pair
on Friday and it whizzed through.

Nigel


-----Original Message-----
From: centos-bounces@xxxxxxxxxx [mailto:centos-bounces@xxxxxxxxxx] On Behalf
Of Johnny Hughes
Sent: 08 May 2005 16:19
To: CentOS ML
Subject: Re:  Kernel bug in software RAID?


On Sun, 2005-05-08 at 12:12 +0100, Matt Dainty wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
> 
> 
> On 8 May 2005, at 04:21, Matt Lawrence wrote:
> 
> > After doing lots of research, it seems that there is a known bug in
> > the software RAID for various versions of the 2.6 kernel. It seems to 
> > be affecting a system that a friend of mine has put together, so I'm 
> > guessing that RH has not back ported a fix into the released kernel. 
> > Does anyone here have any idea when a fix will make it into the 
> > CentOS4 distribution?
> 
> And the details of this known bug are...
> 
> ?
> 
> The short answer is it will appear in CentOS 4 when it appears in RHEL
> 4.

Unfortunately, Matt is correct.  The only time that CentOS would release a
patch that is a bugfix and not already released by RedHat would be if the
bug rendered the OS unusable to the majority of people.  

An example is the Glade-2 bug ... it affected all users and was an easy fix.
Another example is thunderbird, which would not install at all as compiled.
In both of these cases, the bug was clearly defined and a fix was already
developed and released by RedHat, just not yet rolled into RHEL ... and the
package in question was totally non-functional without the fix.

We must maintain binary compatibility in the base system ... it is our
number one goal.  That means that bugs are also usually duplicated.

If you can define the specific bug and a fix, I would be happy to produce a
test kernel with the fix included ... or provide you with a test kernel from
what will become CentOS-4.1 (currently in internal testing).

Thanks,
Johnny Hughes


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