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Date:   Tue, 7 Nov 2017 07:48:42 -0800
From:   Tony Lindgren <tony@atomide.com>
To:     Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc:     Pavel Machek <pavel@ucw.cz>, pali.rohar@gmail.com, sre@kernel.org,
        kernel list <linux-kernel@vger.kernel.org>,
        linux-arm-kernel <linux-arm-kernel@lists.infradead.org>,
        linux-omap@vger.kernel.org, khilman@kernel.org,
        aaro.koskinen@iki.fi, ivo.g.dimitrov.75@gmail.com,
        patrikbachan@gmail.com, serge@hallyn.com, abcloriens@gmail.com,
        "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>,
        Vlastimil Babka <vbabka@suse.cz>,
        Andrew Morton <akpm@linux-foundation.org>,
        Stephen Rothwell <sfr@canb.auug.org.au>,
        Russell King <linux@armlinux.org.uk>
Subject: Re: n900 in next-20170901
Message-ID: <20171107154842.GP28152@atomide.com>
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Hi,

* Joonsoo Kim <iamjoonsoo.kim@lge.com> [171107 05:30]:
> Could you test follwing updated branch?
> 
> https://github.com/JoonsooKim/linux/tree/cma-debug4-next-20180901
> 
> It has three relevant commits on top and enables CMA memory use.

Okie dokie.

> "arm/dma: remove i-cache flush"

Your branch at the above commit is not booting on n900.

> "arm/dma: flush i-cache and d-cache separately"

Not booting at this commit either.

> "arm/dma: call flush_cache_all() and don't do outer cache operation"

Not booting at this commit either.

Earlier commit f14f3479c0d7 ("arm/dma: re-enable to remap the CMA
area and flush cache before remapping") in you branch boots.

Then the following commit d6512d6d0171 ("Revert "arm/mm: disable
atomic_pool"") won't boot.

Also your tree at commit 6d0525cef962 ("arm/dma: remove i-cache
flush") with only commit d6512d6d0171 ("Revert "arm/mm: disable
atomic_pool"") reverted boots on n900.

So it seems the issue is currently at the atomic_pool_init()
related code?

Regards,

Tony

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