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Date: Fri, 24 Aug 2018 13:43:19 -0700
From: Andi Kleen <ak@linux.intel.com>
To: Guillaume Tucker <guillaume.tucker@collabora.com>
Cc: Thomas Gleixner <tglx@linutronix.de>,
        David Woodhouse <dwmw@amazon.co.uk>,
        Guenter Roeck <linux@roeck-us.net>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
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        Matt Hart <matthew.hart@linaro.org>
Subject: Re: stable/linux-4.4.y boot: 124 boots: 3 failed, 117 passed with 2
 offline, 1 untried/unknown, 1 conflict (v4.4.151)
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On Fri, Aug 24, 2018 at 08:32:07AM +0100, Guillaume Tucker wrote:
> On 22/08/18 14:51, kernelci.org bot wrote:
> > stable/linux-4.4.y boot: 124 boots: 3 failed, 117 passed with 2 offline, 1 untried/unknown, 1 conflict (v4.4.151)
> > 
> > Full Boot Summary: https://kernelci.org/boot/all/job/stable/branch/linux-4.4.y/kernel/v4.4.151/
> > Full Build Summary: https://kernelci.org/build/stable/branch/linux-4.4.y/kernel/v4.4.151/
> > 
> > Tree: stable
> > Branch: linux-4.4.y
> > Git Describe: v4.4.151
> > Git Commit: 78f654f6cce3442937b8c7eb4b640357871363c1
> > Git URL: http://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git
> > Tested: 43 unique boards, 20 SoC families, 22 builds out of 191
> > 
> > Boot Regressions Detected:
> [...]
> > x86:
> > 
> >      defconfig+kvm_guest:
> >          x86-x5-z8350:
> >              lab-mhart: failing since 6 days (last pass: v4.4.147 - first fail: v4.4.148)
> > 
> >      x86_64_defconfig:
> >          x86-x5-z8350:
> >              lab-mhart: failing since 6 days (last pass: v4.4.147 - first fail: v4.4.148)
> 
> We've had a couple of automated boot bisections pointing at the
> same commit on an x86 Atom x5-Z8350 platform (AAEON UP-CHT01),
> please see details below.  The issue seems to have started with
> v4.4.148.

I'll take a look.

Do they all fail with the same message?

[    0.065860] ACPI: 8 ACPI AML tables successfully acquired and loaded
[    0.073668] swapper/0: Corrupted page table at address 5b95ef78
[    0.080286] PGD 272a067 PUD 272d067 PMD 5b8000000e3 
[    0.085847] Bad pagetable: 0009 [#1] SMP 

?

-Andi