linux-kernel - Re: Analyzed/Solved/Bisected: Booting 2.6.30-rc2-git7 very slow

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Date:	Thu, 28 May 2009 01:59:47 -0700 (PDT)
From:	Martin Knoblauch <knobi@...bisoft.de>
To:	"Miller, Mike \(OS Dev\)" <Mike.Miller@...com>,
	"Owens, James" <JOwens@...com>
Cc:	Matthew Wilcox <matthew@....cx>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Mike Galbraith <efault@....de>,
	"viro@...IV.linux.org.uk" <viro@...IV.linux.org.uk>,
	"rjw@...k.pl" <rjw@...k.pl>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"tigran@...azian.fsnet.co.uk" <tigran@...azian.fsnet.co.uk>,
	Kay Sievers <kay.sievers@...y.org>,
	"shemminger@...tta.com" <shemminger@...tta.com>,
	Jesse Barnes <jbarnes@...tuousgeek.org>
Subject: Re: Analyzed/Solved/Bisected: Booting 2.6.30-rc2-git7 very slow

----- Original Message ----

> From: "Miller, Mike (OS Dev)" <Mike.Miller@...com>
> To: "Owens, James" <JOwens@...com>; Martin Knoblauch <knobi@...bisoft.de>
> Cc: Matthew Wilcox <matthew@....cx>; Andrew Morton <akpm@...ux-foundation.org>; Mike Galbraith <efault@....de>; "viro@...IV.linux.org.uk" <viro@...IV.linux.org.uk>; "rjw@...k.pl" <rjw@...k.pl>; "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>; "tigran@...azian.fsnet.co.uk" <tigran@...azian.fsnet.co.uk>; Kay Sievers <kay.sievers@...y.org>; "shemminger@...tta.com" <shemminger@...tta.com>; Jesse Barnes <jbarnes@...tuousgeek.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.

> -- 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

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