linux-kernel - Re: db57e98d87 ("mm/sparse.c: fix ALIGN() without power of 2 in .."): BUG: kernel reboot-without-warning in early-boot stage, last printk: early console in setup code

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Date:   Thu, 16 Jul 2020 15:06:13 -0700
From:   Andrew Morton <akpm@...ux-foundation.org>
To:     kernel test robot <lkp@...el.com>
Cc:     Lecopzer Chen <lecopzer.chen@...iatek.com>,
        Mark-PK Tsai <Mark-PK.Tsai@...iatek.com>,
        Linux Memory Management List <linux-mm@...ck.org>,
        linux-kernel@...r.kernel.org, LKP <lkp@...ts.01.org>
Subject: Re: db57e98d87
 ("mm/sparse.c: fix ALIGN() without power of 2 in .."): BUG: kernel
 reboot-without-warning in early-boot stage, last printk: early console in
 setup code

On Thu, 16 Jul 2020 16:32:00 +0800 kernel test robot <lkp@...el.com> wrote:

> Greetings,
> 
> 0day kernel testing robot got the below dmesg and the first bad commit is
> 
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> 
> commit db57e98d87908b8837352abe08515e42752270c1
> Author:     Lecopzer Chen <lecopzer.chen@...iatek.com>
> AuthorDate: Mon Sep 23 15:36:24 2019 -0700
> Commit:     Linus Torvalds <torvalds@...ux-foundation.org>
> CommitDate: Tue Sep 24 15:54:09 2019 -0700
> 
>     mm/sparse.c: fix ALIGN() without power of 2 in sparse_buffer_alloc()

Are we sure about this?  That patch is a year old - has something
in the test setup changed to make it visible at this late stage?