[DRBD-user] Re: heartbeat 2.0.8: lockups kerneloops

[Ross S. W. Walker]

> -----Original Message-----
> From: Gerry Reno [mailto:greno at verizon.net] 
> Sent: Sunday, February 25, 2007 11:51 AM
> To: Ross S. W. Walker
> Cc: drbd-user at lists.linbit.com
> Subject: Re: [DRBD-user] Re: heartbeat 2.0.8: lockups kerneloops
> 
> Ross S. W. Walker wrote:
> > I'm glad to hear you have solved your mysterious problem 
> and that it was
> > hardware after all. I have managed to back port Lars patch 
> to fix the
> > performance problems with drbd and md raid-1 to CentOS 2.6.9 plus, I
> > successfully build a custom version of the latest stable 
> and it tested
> > successfully.
> >
> > I'm trying to get it included in the next CentOS 4.4 plus 
> kernel update.
> >
> > If you want I can forward the patches and my recipe for building
> > painlessly.
> >
> > -Ross
> >   
> Ross,
> Lars had mentioned that the patch was in 2.6.19-3 and I just 
> checked the 
> change log and yes it is in there. We are using FC6 on our 
> machines and 
> currently they are running 2.6.19-1.xxxx. So I'm looking into whether 
> 2.6.19-3 may be coming available for FC6. We too were also running 
> CentOS for a while but we ran into too many problems with getting 
> hardware and drivers to work with it so we decided to switch to FC6 
> which provided us with better hardware support. We would 
> maybe look at 
> CentOS 5 whenever it comes available.
> Yes, I would be interested in seeing your patch and recipe. 
> This would 
> be a good project.

What driver problems did you experience with it? I'm interested in
knowing possible problem areas before I hit them. One thing I did notice
is for drivers that use dkms to compile I had to do a couple of tweaks
to get them to recognize the CentOS kernel version as RHEL4, but they
were simple sed macro changes.

I tried FC5 for a while, but I couldn't keep up with all the kernel and
libc updates, so decided for my SAN server to use something more stable.

-Ross

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