linux-kernel - Re: Warning from free_init

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Message-ID: <CALjAwxjPdKR0jvrGqcYq1iONv0vtQS-sKCm6L3VGsVu0cZcqqw@mail.gmail.com>
Date:   Mon, 26 Sep 2016 07:22:04 +0100
From:   Sitsofe Wheeler <sitsofe@...il.com>
To:     "H. Peter Anvin" <hpa@...or.com>
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, x86@...nel.org,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: Warning from free_init_pages with large initrd

On 26 September 2016 at 03:14, H. Peter Anvin <hpa@...or.com> wrote:
> On 09/24/16 08:32, Sitsofe Wheeler wrote:
>>
>> While trying to PXE boot a Fedora LiveISO on VMware ESXi the kernel
>> throws the following warning:
>>
> [...]
>>
>> The initrd is big because it holds all the files in the ISO (see
>> https://fedorahosted.org/cobbler/wiki/HowToPxeAnyLiveCd for how it was
>> made). The issue was originally filed on
>> https://bugzilla.redhat.com/show_bug.cgi?id=1274966 but was usually
>> against older kernels...
>
> How big is big?

The one that matches that backtrace is 1385 Mbytes and was made from a
Fedora rawhide ISO. Here are some sizes in megabytes from different
versions of Fedora:
960   20/initrd0.img
1416 21/initrd0.img
1379 22/initrd0.img
1430 23/initrd0.img
1492 24/initrd.img

-- 
Sitsofe | http://sucs.org/~sits/