linux-kernel - Re: [linux-next] PPC Lpar fail to boot with error hid: module verification failed: signature and/or required key missing

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Date:   Thu, 25 May 2017 23:02:06 +1000
From:   Michael Ellerman <mpe@...erman.id.au>
To:     Abdul Haleem <abdhalee@...ux.vnet.ibm.com>,
        linuxppc-dev <linuxppc-dev@...ts.ozlabs.org>
Cc:     linux-kernel <linux-kernel@...r.kernel.org>,
        linux-input@...r.kernel.org, Jiri Kosina <jikos@...nel.org>,
        Benjamin Tissoires <benjamin.tissoires@...hat.com>,
        sachinp <sachinp@...ux.vnet.ibm.com>,
        Stephen Rothwell <sfr@...b.auug.org.au>,
        Rob Landley <rob@...dley.net>,
        Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [linux-next] PPC Lpar fail to boot with error hid: module verification failed: signature and/or required key missing - tainting kernel

Abdul Haleem <abdhalee@...ux.vnet.ibm.com> writes:

> Hi,
>
> Test : boot
> Machine : Power 8 PowerVM LPAR
> Kernel version : 4.12.0-rc2-next-20170524
> Toolchain : gcc version 5.2.1
> Config : attached
>
> next-20170517 was last good version where we did not see the failure.
> from next-20170519 to today's next-20170524, we see the problem
> everyday.
>
> Kernels fails to boot on PowerVM LPAR with these errors;
>
> Freeing unused kernel memory: 4416K
> This architecture does not have kernel memory protection.
> Loading, please wait...
> mount: mounting udev on /dev failed: Device or resource busy
> W: devtmpfs not available, falling back to tmpfs for /dev

It'll be:

ee35011fd032 ("initramfs: make initramfs honor CONFIG_DEVTMPFS_MOUNT")

cheers