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From: Thomas Gleixner <tglx@linutronix.de>
To: Toshi Kani <toshi.kani@hpe.com>
Cc: mhocko@suse.com, akpm@linux-foundation.org, mingo@redhat.com,
	hpa@zytor.com, cpandya@codeaurora.org, linux-mm@kvack.org,
	x86@kernel.org, linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH v3 0/3] fix free pmd/pte page handlings on x86
Date: Sun, 24 Jun 2018 15:19:18 +0200 (CEST)	[thread overview]
Message-ID: <alpine.DEB.2.21.1806241516410.8650@nanos.tec.linutronix.de> (raw)
In-Reply-To: <20180516233207.1580-1-toshi.kani@hpe.com>

On Wed, 16 May 2018, Toshi Kani wrote:

> This series fixes two issues in the x86 ioremap free page handlings
> for pud/pmd mappings.
> 
> Patch 01 fixes BUG_ON on x86-PAE reported by Joerg.  It disables
> the free page handling on x86-PAE.
> 
> Patch 02-03 fixes a possible issue with speculation which can cause
> stale page-directory cache.
>  - Patch 02 is from Chintan's v9 01/04 patch [1], which adds a new arg
>    'addr', with my merge change to patch 01.
>  - Patch 03 adds a TLB purge (INVLPG) to purge page-structure caches
>    that may be cached by speculation.  See the patch descriptions for
>    more detal.

Toshi, Joerg, Michal!

I'm failing to find a conclusion of this discussion. Can we finally make
some progress with that?

Can someone give me a hint what to pick up urgently please?

Thanks,

	tglx

  parent reply	other threads:[~2018-06-24 13:20 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-05-16 23:32 Toshi Kani
2018-05-16 23:32 ` [PATCH v3 1/3] x86/mm: disable ioremap free page handling on x86-PAE Toshi Kani
2018-05-16 23:32 ` [PATCH v3 2/3] ioremap: Update pgtable free interfaces with addr Toshi Kani
2018-05-17  6:47   ` Michal Hocko
2018-05-17 14:32     ` Kani, Toshi
2018-05-16 23:32 ` [PATCH v3 3/3] x86/mm: add TLB purge to free pmd/pte page interfaces Toshi Kani
2018-05-29 14:44   ` Joerg Roedel
2018-05-29 16:10     ` Kani, Toshi
2018-05-30  4:59       ` joro
2018-05-30 15:39         ` Kani, Toshi
2018-06-24 13:19 ` Thomas Gleixner [this message]
2018-06-25 14:56   ` [PATCH v3 0/3] fix free pmd/pte page handlings on x86 Kani, Toshi
2018-06-25 17:53     ` Michal Hocko
2018-06-25 21:15       ` Kani, Toshi
2018-06-26  6:35         ` Michal Hocko
2018-06-26  8:45           ` Thomas Gleixner
2018-06-26  8:54             ` Michal Hocko
2018-06-26 15:25               ` Kani, Toshi

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