linux-kernel - Fwd: [Bug 150021] New: kernel panic: "kernel tried to execute NX-protected page" when resuming from hibernate to disk

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Date:	Tue, 26 Jul 2016 13:32:28 +0200
From:	"Rafael J. Wysocki" <rjw@...ysocki.net>
To:	Ingo Molnar <mingo@...nel.org>
Cc:	Borislav Petkov <bp@...e.de>, Josh Poimboeuf <jpoimboe@...hat.com>,
	Pavel Machek <pavel@....cz>,
	Linux PM list <linux-pm@...r.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Thomas Gleixner <tglx@...utronix.de>, shuzzle@...lbox.org
Subject: Fwd: [Bug 150021] New: kernel panic: "kernel tried to execute NX-protected page" when resuming from hibernate to disk

Hi,

The following commit:

commit 13523309495cdbd57a0d344c0d5d574987af007f
Author: Josh Poimboeuf <jpoimboe@...hat.com>
Date:   Thu Jan 21 16:49:21 2016 -0600

    x86/asm/acpi: Create a stack frame in do_suspend_lowlevel()
    
    do_suspend_lowlevel() is a callable non-leaf function which doesn't
    honor CONFIG_FRAME_POINTER, which can result in bad stack traces.
    
    Create a stack frame for it when CONFIG_FRAME_POINTER is enabled.

is reported to cause a resume-from-hibernation regression due to an attempt
to execute an NX page (we've seen quite a bit of that recently).

I'm asking the reporter to try 4.7, but if the problem is still there, we'll
need to revert the above I'm afraid.

Thanks,
Rafael

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