From: Pavel Machek <pavel@denx.de>
To: Dinh Nguyen <dinh.linux@gmail.com>
Cc: Jaehoon Chung <jh80.chung@samsung.com>,
dinguyen@altera.com, khilman@linaro.org, olof@lixom.net,
arnd@arndb.de, arm@kernel.org,
linux-arm-kernel@lists.infradead.org,
kernel list <linux-kernel@vger.kernel.org>,
akpm@linux-foundation.org
Subject: 3.17-rc2: root=/dev/mmcblk0p2 command line parsing fails
Date: Tue, 26 Aug 2014 13:47:09 +0200 [thread overview]
Message-ID: <20140826114707.GA16372@amd> (raw)
In-Reply-To: <20140814210252.GB26857@amd.pavel.ucw.cz>
Hi!
> > > mmc0: new SDHC card at address b368
> > > mmcblk0: mmc0:b368 USD 7.45 GiB
> > > mmcblk0: p1 p2 p3 p4
> > > VFS: Cannot open root device "mmcblk0p2" or unknown-block(0,0): error
> > > -6
> > > Please append a correct "root=" boot option; here are the available
> > > partitions:
> > > b300 7822336 mmcblk0 driver: mmcblk
> > > b301 102400 mmcblk0p1 00082434-01
> > > b302 1048576 mmcblk0p2 00082434-02
> > > b303 1024 mmcblk0p3 00082434-03
> > > b304 6086656 mmcblk0p4 00082434-04
> > > Kernel panic - not syncing: VFS: Unable to mount root fs on
> > > unknown-block(0,0)
> > > CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.16.0-11208-gef74117-dirty
> > > #2
> >
> > Hmm...today's tip-top(899552d6) and ba36899 booted just fine for me. I
> > noticed something, you must have commits on top of your ba36899? Mine
> > shows 3.16.0-11149-gba36899.
>
> Ok, thanks for info. I went back to 3.16, and it worked in same
> config, and went to 3.17, and it broke.
The problem is still there in 3.17-rc2. 3.16 does not have the
problem. Messages are still similar:
mmc0: new high speed SDHC card at address b368
mmcblk0: mmc0:b368 USD 7.45 GiB
mmcblk0: p1 p2 p3 p4
VFS: Cannot open root device "mmcblk0p2" or unknown-block(0,0): error
-6
Please append a correct "root=" boot option; here are the available
partitions:
b300 7822336 mmcblk0 driver: mmcblk
b301 102400 mmcblk0p1 00082434-01
b302 1048576 mmcblk0p2 00082434-02
b303 1024 mmcblk0p3 00082434-03
b304 6086656 mmcblk0p4 00082434-04
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
CPU: 0 PID: 1 Comm: swapper/0 Not tainted
3.17.0-rc2-00368-gec0400b-dirty #83
What is going on there? Clearly partition table was parsed and
partitions are available; does the mention of unknown-block(0,0) mean
that kernel failed to parse the command line?
I replaced "root=/dev/mmcblk0p2" with "root=b302" and have a booting
system.
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
next parent reply other threads:[~2014-08-26 11:47 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1405397216-909-1-git-send-email-dinguyen@altera.com>
[not found] ` <53C4D874.2040206@samsung.com>
[not found] ` <20140814184710.GA11558@amd.pavel.ucw.cz>
[not found] ` <53ED2262.50604@gmail.com>
[not found] ` <20140814210252.GB26857@amd.pavel.ucw.cz>
2014-08-26 11:47 ` Pavel Machek [this message]
2014-08-26 21:00 ` 3.17-rc2: root=/dev/mmcblk0p2 command line parsing fails Dinh Nguyen
2014-09-09 11:49 ` Pavel Machek
2014-09-17 13:20 ` Russell King - ARM Linux
2014-09-17 13:47 ` Russell King - ARM Linux
2014-09-17 14:25 ` Paul Gortmaker
2014-09-17 14:57 ` [PATCH] Revert "init: make rootdelay=N consistent with rootwait behaviour" Paul Gortmaker
2014-09-18 13:17 ` Pavel Machek
2015-04-09 9:42 ` rootdelay regression is back in 4.0? was " Pavel Machek
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