linux-kernel - RE: [PATCH V2 0/3] Use mm_struct and switch

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Message-ID: <FFF73D592F13FD46B8700F0A279B802F185C4EF9@ORSMSX114.amr.corp.intel.com>
Date:   Mon, 11 Sep 2017 07:10:53 +0000
From:   "Prakhya, Sai Praneeth" <sai.praneeth.prakhya@...el.com>
To:     Bhupesh Sharma <bhsharma@...hat.com>
CC:     "linux-efi@...r.kernel.org" <linux-efi@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Matt Fleming <matt@...eblueprint.co.uk>,
        Ard Biesheuvel <ard.biesheuvel@...aro.org>,
        "jlee@...e.com" <jlee@...e.com>, Borislav Petkov <bp@...en8.de>,
        "Luck, Tony" <tony.luck@...el.com>,
        "luto@...nel.org" <luto@...nel.org>,
        "mst@...hat.com" <mst@...hat.com>,
        "Neri, Ricardo" <ricardo.neri@...el.com>,
        "Shankar, Ravi V" <ravi.v.shankar@...el.com>
Subject: RE: [PATCH V2 0/3] Use mm_struct and switch_mm() instead of manually

> So, in summary it seems that the primary kernel boot _fails_ with your
> v2 patchset on the real hardware for me irrespective of whether I use Matt's
> tree or Linus's tree:
> 
> a) I would suggest that you perform some more checks on real hardware as
> qemu boot tests sometimes do not expose the problems we might see when
> booting a kernel on efi capable hardware.
> 
> b) Also do note that both Matt's tree and Linus's tree work fine on this hardware
> for me (with the 'nopcid' added to the bootargs)
> 

Hi Bhupesh,

Thanks a lot! for the detailed explanation. I will address these issues in V3.

Regards,
Sai