From: Pavel Machek <pavel@ucw.cz>
To: Joerg Roedel <joro@8bytes.org>
Cc: Andrew Morton <akpm@linux-foundation.org>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org,
Chris Wilson <chris@chris-wilson.co.uk>,
intel-gfx@lists.freedesktop.org,
Linus Torvalds <torvalds@linux-foundation.org>,
Dave Airlie <airlied@redhat.com>,
Joonas Lahtinen <joonas.lahtinen@linux.intel.com>,
Rodrigo Vivi <rodrigo.vivi@intel.com>,
David Vrabel <david.vrabel@citrix.com>,
Joerg Roedel <jroedel@suse.de>,
stable@vger.kernel.org
Subject: Re: [PATCH v2] mm: Track page table modifications in __apply_to_page_range()
Date: Sun, 23 Aug 2020 12:44:59 +0200 [thread overview]
Message-ID: <20200823104459.untmn33r46wqxi66@duo.ucw.cz> (raw)
In-Reply-To: <20200821123746.16904-1-joro@8bytes.org>
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Hi!
> The __apply_to_page_range() function is also used to change and/or
> allocate page-table pages in the vmalloc area of the address space.
> Make sure these changes get synchronized to other page-tables in the
> system by calling arch_sync_kernel_mappings() when necessary.
>
> Tested-by: Chris Wilson <chris@chris-wilson.co.uk> #x86-32
> Cc: <stable@vger.kernel.org> # v5.8+
> Signed-off-by: Joerg Roedel <jroedel@suse.de>
This seems to solve screen blinking problems on Thinkpad X60. (It
already survived few unison runs, which would usually kill it.).
Tested-by: Pavel Machek <pavel@ucw.cz>
Thanks and best regards,
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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prev parent reply other threads:[~2020-08-23 10:45 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-21 12:37 [PATCH v2] mm: Track page table modifications in __apply_to_page_range() Joerg Roedel
2020-08-21 18:51 ` Chris Wilson
2020-08-21 19:18 ` Linus Torvalds
2020-08-22 16:12 ` Joerg Roedel
2020-08-21 20:35 ` Andrew Morton
2020-08-21 20:50 ` Chris Wilson
2020-08-21 21:29 ` Pavel Machek
2020-08-22 21:25 ` Pavel Machek
2020-08-21 22:34 ` Andrew Morton
2020-08-21 23:39 ` Chris Wilson
2020-08-22 11:31 ` Chris Wilson
2020-08-22 16:20 ` Joerg Roedel
2020-08-23 10:44 ` Pavel Machek [this message]
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