Date: Tue, 22 May 2012 15:12:17 -0400 (EDT)
Message-Id: <20120522.151217.278388169416093561.davem@davemloft.net>
To: mroos@linux.ee
Cc: linux-kernel@vger.kernel.org
Subject: Re: 3.4.0-02580-g72c04af regression on sparc64 - partitions not
 recognized
From: David Miller <davem@davemloft.net>
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From: Meelis Roos <mroos@linux.ee>
Date: Tue, 22 May 2012 12:14:05 +0300 (EEST)

> Just tested 3.4.0-02580-g72c04af on about 10 machines. While most of 
> them work (including 3 different sparc64 machines with real scsi disks), 
> Sun Netra X1 with pata_ali and IDE disk consistently fails to boot. sda 
> is recognized but no partitions. 3.3.0 works fine, as did something 
> around 3.4-rc7 (plain 3.4 not tested yet). No other IDE machines tested 
> yet since I have none with remote console at the moment.

3.4-rc7 until 72c04af is about 3500 changes, we'll need to narrow this
down further.

I would first check to make sure that 3.4.0-final doesn't have the
problem.

If 3.4.0-final is OK, start bisecting from v3.4.0 until 72c04af.  One
possibility could be the sparc64 NOBOOTMEM conversion that went into
the merge window.
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