linux-kernel - Re: 2.6.16.41 & 2.6.18.7 OK, 2.6.19.5 NOT, 2.6.18.8 KERNEL PANIC

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Message-Id: <20070225154438.dbf695f0.randy.dunlap@oracle.com>
Date:	Sun, 25 Feb 2007 15:44:38 -0800
From:	Randy Dunlap <randy.dunlap@...cle.com>
To:	Mario Vanoni <vanonim@...ce.it>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: 2.6.16.41 & 2.6.18.7 OK,   2.6.19.5 NOT,   2.6.18.8 KERNEL
 PANIC

On Sun, 25 Feb 2007 17:05:58 +0100 Mario Vanoni wrote:

> Randy Dunlap wrote:
> > On Sat, 24 Feb 2007 16:44:20 +0100 Mario Vanoni wrote:
> > 
> >> 2.6.18.7 vanilla & 2.6.16.41 vanilla:
> >> /dev/hda CD/DVD
> >> /dev/hda1 / IDE HD 160GB
> >> /dev/hda2 swap
> >> /dev/sda1 /xyz SATA HD 320GB
> >> /dev/sda2 swap
> >> /dev/sdb1 /zzz SATA HD 320GB
> >> /dev/sdb2 swap
> >> /dev/sdc1 /usb USB KEY 512MB
> 
> > For 2.6.19.*, does .config contain any CONFIG_ATA* entries?
> > FYI, in 2.6.19, CONFIG_SCSI_SATA* config symbols were renamed to
> > CONFIG_ATA*, so just using an oldconfig won't be sufficient
> > for SATA support.
> 
> You are 100% right, I was lazy, thanks for the gentle blame.
> 2.6.19.5 vanilla works perfectly, 2.6.20.1 vanilla too!
> 
> >> ---
> >> 2.6.18.8 vanilla: !!!
> >> screen eating leftmost characters, then
> >> kernel panic - not syncing: VFS: Unable to mount root fs on
> >> unknown-block(3,65)
> >> POWER SWITCH ultima ratio
> >> ---

What is (3,65) supposed to be?  devices.txt says that it's /dev/hdb1.
I don't see that listed anywhere here...

> Strange error, due to a partially corrupted MBR (?):
> 2.6.19.5 with incorrect .config, lilo, SATA missing
> reboot with old 2.6.18.7, OK
> 2.6.18.8 with old .config from 2.6.18.6,
> lilo objects not seeing /dev/sdb and /dev/sdc,
> reboot and kernel panic,
> reboot with 2.6.18.7, OK
> 2.6.18.8 make mrproper and rm -r /lib/modules/2.6.18.8
> make bzImage etc., lilo: 2.6.18.8 works perfectly.


---
~Randy
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