RE: Analyzed/Solved/Bisected: Booting 2.6.30-rc2-git7 very slow

Miller, Mike (OS Dev)
2009-05-28T19:01:45Z

> -----Original Message-----
> From: Martin Knoblauch [mailto:knobi@knobisoft.de]
> Sent: Thursday, May 28, 2009 4:00 AM
> To: Miller, Mike (OS Dev); Owens, James
> Cc: Matthew Wilcox; Andrew Morton; Mike Galbraith;
> viro@ZenIV.linux.org.uk; rjw@sisk.pl;
> linux-kernel@vger.kernel.org; tigran@aivazian.fsnet.co.uk;
> Kay Sievers; shemminger@vyatta.com; Jesse Barnes
> Subject: Re: Analyzed/Solved/Bisected: Booting
> 2.6.30-rc2-git7 very slow
>
> ----- Original Message ----
>
> > From: "Miller, Mike (OS Dev)" <Mike.Miller@hp.com>
> > To: "Owens, James" <JOwens@hp.com>; Martin Knoblauch
> > <knobi@knobisoft.de>
> > Cc: Matthew Wilcox <matthew@wil.cx>; Andrew Morton
> > <akpm@linux-foundation.org>; Mike Galbraith <efault@gmx.de>;
> > "viro@ZenIV.linux.org.uk" <viro@ZenIV.linux.org.uk>; "rjw@sisk.pl"
> > <rjw@sisk.pl>; "linux-kernel@vger.kernel.org"
> > <linux-kernel@vger.kernel.org>; "tigran@aivazian.fsnet.co.uk"
> > <tigran@aivazian.fsnet.co.uk>; Kay Sievers <kay.sievers@vrfy.org>;
> > "shemminger@vyatta.com" <shemminger@vyatta.com>; Jesse Barnes
> > <jbarnes@virtuousgeek.org>
> > Sent: Wednesday, May 27, 2009 8:18:46 PM
> > Subject: RE: Analyzed/Solved/Bisected: Booting 2.6.30-rc2-git7 very
> > slow
> >
> > > >
> > > > Finally, today I built the ccsii driver into the kernel.
> > > It was previously modularized and loaded from initrd. The second
> > > "sysfs" line went away. But does this make cciss guilty?
> It is now
> > > loaded about 2 seconds earlier in the boot sequence,
> which is a big
> > > change in timing I guess.
> > > >
> > > > Enlighten me :-)
> > >
> > > No idea what is going on, but since I saw your May 20 message, I
> > > have been trying to wake up someone whose day job it should be to
> > > care about dl380s and smartarrays. :)
> >
> > What? I know Martin has pinged me in the past, but I do not
> think it
> > was about this issue. If there's multiple sysfs entries for cciss I
> > can't explain that offhand. We do little to nothing for
> sysfs in the driver.
> > Had something similiar happen recently where "/" changed to
> "!". Had
> > do to with our nested directory structure, /dev/cciss/name vs
> > /dev/name. But we did not make that change, either.
> >
> Hi Mike, Jim
>
> you are right. I never talked to you about this issue.
> Actually, I did not suspect CCISS or the DL380 in general to
> be involved before last week when I retested on the x3650 and
> the problem went away. Due to day-job and priorities I did
> not follow up.

Martin,
Same exact OS install? Are you sure all the userspace stuff is the same?

-- mikem
> >
> > >
> > > If they don't react soon, I'll make this my own day job to try to
> > > reproduce it. We will need hardware config details and firmware
> > > revs to start.
> > >
>
> Dl380/G4
> 2x3.4 GHz CPUs
> 8 GB Memeory
> 4x72 GB as RAID5 on SA6i controller
>
> BIOS: P51 (07(19/2007)
> ILO FW: 1.91
> SA6i FW: 2.84
>
> lspci output (-vvv and -xxx) appendend to prevent line wrapping.
>
>
> Cheers
> Martin
>