linux-kernel - Re: 3Ware delayed device mounting errors with newer 9500 series adapters

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Date:	Sun, 22 Oct 2006 10:19:16 -0700
From:	"adam radford" <aradford@...il.com>
To:	"Andrew Morton" <akpm@...l.org>
Cc:	"Jeffrey V. Merkey" <jmerkey@...fmountaingroup.com>,
	linux-kernel <linux-kernel@...r.kernel.org>, linuxraid@...c.com,
	linux-scsi@...r.kernel.org
Subject: Re: 3Ware delayed device mounting errors with newer 9500 series adapters

Jeff,

Can you reproduce with 2.6.18.1?  ES4 contains a custom 3ware driver.

Also, you have included no error output with this email whatsoever.  Can
you go to a virtual console during your ES4 install, run 'dmesg', and see if
the errors are in there, or if they are a part of the ES4 anaconda installer?

/dev/sdb, etc. having delayed appearances sounds like it is udev related.

Are you running the latest firmware?  Do your controllers older than 60 days
have different firmware?

I will try to reproduce this.

-Adam

On 10/21/06, Andrew Morton <akpm@...l.org> wrote:
> On Sat, 21 Oct 2006 11:03:10 -0600
> "Jeffrey V. Merkey" <jmerkey@...fmountaingroup.com> wrote:
>
> >
> > Adam,
> >
> > We have been getting 3Ware 9500 series adapters in the past 60 days
> > which exhibit a delayed behavior during mounting of FS from
> > /etc/fstab.   The adapters older than this do not exhibit this behavior.
> >
> > During bootup, if the driver is compiled as a module rather than in
> > kernel, mount points such as /var in fstab fail to detect the devices
> > until the system fully boots, at which point the /dev/sdb etc. devices
> > showup.  It happens on both ATA cabled drives and drives
> > cabled with multi-lane controller backplanes.
> >
> > The problem is easy to reproduce.  Install ES4, point the /var directory
> > during install to one of the array devices in disk druid, and after
> > the install completes, /var/ will not mount during bootup and all sorts
> > of errors stream off the screen.  I can reproduce the problem
> > with several systems in our labs and upon investigating the adapter
> > revisions, I find that adapters ordered in the past 60 days exhibit
> > the problem.   Compiling the driver in kernel gets around the problem,
> > indicating its timing related.
> >
>
> cc's added.
> -
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