From: Dave Hansen <dave.hansen@intel.com>
To: "Dave Hansen" <dave.hansen@linux.intel.com>,
"Mike Galbraith" <efault@gmx.de>,
"Borislav Petkov" <bp@alien8.de>,
"Jörg Otte" <jrg.otte@gmail.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
Thomas Gleixner <tglx@linutronix.de>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Aaro Koskinen <aaro.koskinen@nokia.com>
Subject: Re: 4.17.0-rc1 doesn't boot.
Date: Tue, 17 Apr 2018 12:56:21 -0700 [thread overview]
Message-ID: <db545641-9fb4-6ef1-32f4-2afc987261b0@intel.com> (raw)
In-Reply-To: <017d65c5-748b-eeae-a020-fa4473f4507c@linux.intel.com>
Heh, your .config is insidious:
ffffffff9ffe3000 B __brk_base
ffffffff9ffe3000 B __bss_stop
ffffffff9fff3000 b .brk.dmi_alloc
ffffffffa0003000 b .brk.early_pgt_alloc
ffffffffa000f000 B _end
ffffffffa000f000 B __brk_limit
dmi_alloc is __init, so it gets freed at some point and the PTEs zeroed
out. That causes the warning when change_page_attr() sees the zero'd
PTE. We just need to special-case the __init section along with the
linear map in pageattr.c.
I'll have some patches to do this shortly.
prev parent reply other threads:[~2018-04-17 19:56 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-17 8:00 Jörg Otte
2018-04-17 8:14 ` Borislav Petkov
2018-04-17 14:16 ` Jörg Otte
2018-04-17 14:27 ` Borislav Petkov
2018-04-17 15:21 ` Jörg Otte
2018-04-17 15:31 ` Borislav Petkov
2018-04-17 16:00 ` Mike Galbraith
2018-04-17 16:48 ` Dave Hansen
2018-04-17 17:48 ` Mariusz Ceier
2018-04-17 19:56 ` Dave Hansen [this message]
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