20050509: Re: computer freezes

Steve,

I don't know about version 2.4 of the Linux kernel -- but I did get this
advice from our systems administrator.

Regards,
Steve Emmerson

------- Original Message

Date:    Mon, 09 May 2005 09:32:08 -0600
From:    "Mike Schmidt" <address@hidden>To:      Steve Emmerson <ste
          address@hidden>
Subject: Re: computer freezes (fwd)

Steve,

I believe the I/O problem in 2.6.10- was specific to 2.6 kernels and
not really related to the poorer overall performance in 2.4 kernels.
NFS was a big problem for us under 2.4, but improved greatly after
forcing proto=tcp mount option which seemed to resolve several issues.

In either case, an upgrade to 2.6.11+ should be a big win...

mike

On May 9,  9:19am, Steve Emmerson wrote:
> Subject: Re: computer freezes (fwd)
> Mike,
>
> I don't know about the 2.4 kernels.  Do you have any advice?
>
> --Steve
>
> ------- Forwarded Message
>
>
> Date:    Mon, 09 May 2005 10:10:10 CDT
> To:      address@hidden
> From:    Steve Adams <address@hidden>
> Subject: Re: computer freezes
>
> >From address@hidden Mon May  9 09:23 CDT 2005
> >
> >Mark,
> >
> >What version of the kernel were you running?  For example
> >
> >    $ uname -r
> >    2.6.11-1.14_FC3smp
> >
> >Versions of the 2.6 kernel earlier than 2.6.10 (I think) appear to have
> >a very bad I/O performance bug.
>
> Steve,
>
> We're having troubles with hangs on our Red Hat system also. However, our
> kernel is: 2.4.20-27.7
>
> Is the I/O performance bug in the 2.4 series also? We're thinking it's
> NFS related, but are we barking up the wrong tree? Is 2.6.11+ better
> than our 2.4.20-27.7 in both I/O and NFS? Do you think it's worth the
> trouble to upgrade the OS to find out?
>
> - ----------------------------------------------------------------
> Stephen D. Adams
> Vice President - Research and Development
> AWIS Weather Services, Inc.
> ph: (334) 826-2149 ex103      email: address@hidden
>     (334) 826-2152 (FAX)      http://www.awis.com
> - ----------------------------------------------------------------
>
> ------- End of Forwarded Message
>-- End of excerpt from Steve Emmerson

------- End of Original Message

------- End of Unsent Draft