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Subject: Re: Patch 0727d35de ("Make initramfs honor CONFIG_DEVTMPFS_MOUNT")
 breaks boot
To: Yury Norov <ynorov@caviumnetworks.com>
References: <20170522120550.ekrq6ipfmkdtlxjo@yury-N73SV>
 <7d91fb6b-9a21-ceb6-6c08-4bc14a15ada2@landley.net>
 <20170523080159.2yetdh4qqt2pmha6@yury-N73SV>
 <66dd96ec-b170-0bf6-7746-5466270b3e15@landley.net>
 <20170523213215.qmfnbf4bseqiwkky@yury-N73SV>
 <20170523230808.qk6rurqolhow5ets@yury-N73SV>
Cc: Andrew Morton <akpm@linux-foundation.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        Prarit Bhargava <prarit@redhat.com>, Yang Shi <yang.shi@linaro.org>,
        Rasmus Villemoes <linux@rasmusvillemoes.dk>,
        Kees Cook <keescook@chromium.org>, Emese Revfy <re.emese@gmail.com>,
        Petr Mladek <pmladek@suse.com>, Fabian Frederick <fabf@skynet.be>
From: Rob Landley <rob@landley.net>
Message-ID: <d3a20652-5918-69be-2d95-b6cc87bed038@landley.net>
Date: Thu, 25 May 2017 00:55:25 -0500
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On 05/23/2017 06:08 PM, Yury Norov wrote:
>> It was 2 years ago, but AFAIR I took the Ubuntu image here:
>> http://cdimage.ubuntu.com/ubuntu-base/releases/14.04.1/release/ubuntu-base-14.04.1-core-arm64.tar.gz

Have you applied updates since then? (Maybe they fixed their init script
since 2 years ago?)

>> Kernel config is attached. I build the kernel with simple 'make'.
>>
>> Yury
> 
> Sorry, config is here.

$ diff -u yury.conf /boot/config-4.4.0-78-generic | grep '^[-+]' | wc -l
10384

So that's not Ubuntu's current 14.04 kernel config.

$ diff -u yury.conf /boot/config-4.2.0-36-generic | grep '^[-+]' | wc -l
10212

And it's not the oldest Ubuntu 14.04 config I have lying around (from a
year ago).

$ cd linux && make defconfig
$ diff -u ~/yury.conf .config | grep '^[-+]' | wc -l
4369

It's much closer to the current defconfig, but still significantly
different.

So you're using a custom config, and can't switch off a symbol.

Rob