linux-kernel - Re: ioremap and dma cleanups and fixes for superh (2nd resend)

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Date:   Tue, 14 Jul 2020 23:12:11 -0400
From:   Rich Felker <dalias@...c.org>
To:     John Paul Adrian Glaubitz <glaubitz@...sik.fu-berlin.de>
Cc:     Christoph Hellwig <hch@....de>,
        Yoshinori Sato <ysato@...rs.sourceforge.jp>,
        linux-sh@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: ioremap and dma cleanups and fixes for superh (2nd resend)

On Wed, Jul 15, 2020 at 01:12:33AM +0200, John Paul Adrian Glaubitz wrote:
> Hello!
> 
> I have applied Christoph's full series on top of Linus' tree and I can confirm that
> the kernel boots fine on my SH-7785LCR board.
> 
> Thus, for the whole series of patches:
> 
> Tested-by: John Paul Adrian Glaubitz <glaubitz@...sik.fu-berlin.de>
> 
> However, independent of Christoph's series, the kernels throws two backtraces during
> boot which I think should require a git bisect (unless I missed a configuration option
> as I trimmed down the kernel a bit to make sure it's not too big).
> 
> See the traces below and let me know what you think.

I've got a slightly earlier version (my for-next) built for qemu r2d
board, and don't get any such messages. Do you have a lock-debugging
option enabled that's catching a problem, perhaps?

Rich