Message-ID: <452AB97B.5040309@drzeus.cx>
Date: Mon, 09 Oct 2006 23:04:59 +0200
From: Pierre Ossman <drzeus-list@drzeus.cx>
User-Agent: Thunderbird 1.5.0.7 (X11/20060927)
MIME-Version: 1.0
To: pHilipp Zabel <philipp.zabel@gmail.com>
CC: rmk+lkml@arm.linux.org.uk, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] [MMC] Use own work queue
References: <20061001124240.16996.34557.stgit@poseidon.drzeus.cx> <74d0deb30610070717k17079940ybedbf94dc8af8460@mail.gmail.com>
In-Reply-To: <74d0deb30610070717k17079940ybedbf94dc8af8460@mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: 7bit
Sender: linux-kernel-owner@vger.kernel.org
Content-Length: 1076
Lines: 29

pHilipp Zabel wrote:
> 
> This patch makes pxamci stop working for me on a HTC Magician (PXA272).
> Switching from 2.6.18 to 2.6.19-rc1 I got a kernel panic:
> 
> mmc0: clock 0Hz busmode 1 powermode 0 cs 0  Vdd 0 width 0
> PXAMCI: clkrt = 0 cmdat = 0
> VFS: Cannot open root device "mmcblk0p2" or unknown-block(0,0)
> Please append a correct "root=" boot option
> Kernel panic - not syncing: VFS: Unable to mount root fs on
> unknown-block(0,0)
> 
> After removing this patch from 2.6.19-rc1, everything is working again.
> Are there any changes to pxamci.c needed to be compatible with it?
> 

No, the drivers shouldn't be affected. As this is a root device, my
guess would be that you have a race in your bootup that is causing problem.

Are you using initrd for this device? And could you get a complete dmesg
dump?

Rgds
Pierre
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/