linux-kernel - Re: "bad pmd" errors + oops with KPTI on 4.14.11 after loading X.509 certs

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Date:   Wed, 3 Jan 2018 15:44:09 -0800
From:   Andy Lutomirski <luto@...capital.net>
To:     Thomas Gleixner <tglx@...utronix.de>
Cc:     Benjamin Gilbert <benjamin.gilbert@...eos.com>,
        Ingo Molnar <mingo@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        x86@...nel.org, LKML <linux-kernel@...r.kernel.org>,
        linux-mm@...ck.org, stable@...r.kernel.org,
        Andy Lutomirski <luto@...nel.org>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        Peter Zijlstra <peterz@...radead.org>
Subject: Re: "bad pmd" errors + oops with KPTI on 4.14.11 after loading X.509 certs



> On Jan 3, 2018, at 2:58 PM, Thomas Gleixner <tglx@...utronix.de> wrote:
> 
> 
> 
>> On Wed, 3 Jan 2018, Thomas Gleixner wrote:
>> 
>>> On Wed, 3 Jan 2018, Benjamin Gilbert wrote:
>>>> On Wed, Jan 03, 2018 at 11:34:46PM +0100, Thomas Gleixner wrote:
>>>> Can you please send me your .config and a full dmesg ?
>>> 
>>> I've attached a serial log from a local QEMU.  I can rerun with a higher
>>> loglevel if need be.
>> 
>> Thanks!
>> 
>> Cc'ing Andy who might have an idea and he's probably more away than I
> 
> s/away/awake/ just to demonstrate the state I'm in ...
> 
>> am. Will have a look tomorrow if Andy does not beat me to it.

Can you forward me more of the thread?

>> 
>> Thanks,
>> 
>>    tglx
>>