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From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: Roland Dreier <roland@purestorage.com>,
	Guenter Roeck <linux@roeck-us.net>
Cc: Ben Hutchings <ben.hutchings@codethink.co.uk>,
	LKML <linux-kernel@vger.kernel.org>,
	stable@vger.kernel.org, matt@codeblueprint.co.uk, bp@suse.de,
	Andrew Morton <akpm@linux-foundation.org>,
	Andy Lutomirski <luto@amacapital.net>,
	luto@kernel.org, Ard Biesheuvel <ard.biesheuvel@linaro.org>,
	bp@alien8.de, brgerst@gmail.com, davej@codemonkey.org.uk,
	dvlasenk@redhat.com, "H. Peter Anvin" <hpa@zytor.com>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Peter Zijlstra <peterz@infradead.org>,
	sai.praneeth.prakhya@intel.com, sds@tycho.nsa.gov,
	Thomas Gleixner <tglx@linutronix.de>,
	toshi.kani@hp.com, linux-efi@vger.kernel.org,
	Ingo Molnar <mingo@kernel.org>,
	Yazen.Ghannam@amd.com
Subject: Re: [PATCH 4.4 103/105] Revert "x86/mm/pat: Ensure cpa->pfn only contains page frame numbers"
Date: Fri, 24 Aug 2018 21:17:49 +0200	[thread overview]
Message-ID: <20180824191749.GA15489@kroah.com> (raw)
In-Reply-To: <CAL1RGDW1Lo+F5D479Jsi-AFsmjVpdDre_qOFSCwWubG6U=bxeQ@mail.gmail.com>

On Fri, Aug 24, 2018 at 10:08:28AM -0700, Roland Dreier wrote:
> > See
> > <https://lore.kernel.org/lkml/1512686629.18523.217.camel@codethink.co.uk/T/#u>.
> 
> Thanks!  I'm not using SGI UV and I'm not using kexec, so I guess I
> sidestepped most of those issues.  Greg, I think we need to unrevert
> the cpa->pfn change (otherwise the L1TF fix probably gets pretty
> messy) and I guess pull in the other patches that Ben mentions.

Ok, so what patch should be reverted?  I'm seeing other reports of
problems all around this same area, but I can't figure out exactly what
to do.

Guenter, any ideas?

thanks,

greg k-h

  reply	other threads:[~2018-08-24 19:17 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20171215092305.994559179@linuxfoundation.org>
2017-12-15  9:44 ` [PATCH 4.4 013/105] efi: Move some sysfs files to be read-only by root Greg Kroah-Hartman
2017-12-15  9:45 ` [PATCH 4.4 101/105] Revert "x86/efi: Build our own page table structures" Greg Kroah-Hartman
2017-12-15  9:45 ` [PATCH 4.4 102/105] Revert "x86/efi: Hoist page table switching code into efi_call_virt()" Greg Kroah-Hartman
2017-12-15  9:45 ` [PATCH 4.4 103/105] Revert "x86/mm/pat: Ensure cpa->pfn only contains page frame numbers" Greg Kroah-Hartman
2018-08-23  0:48   ` Roland Dreier
2018-08-23  6:12     ` Greg Kroah-Hartman
2018-08-23 16:37       ` Roland Dreier
2018-08-24 14:54         ` Matt Fleming
2018-08-24 16:45     ` Ben Hutchings
2018-08-24 17:08       ` Roland Dreier
2018-08-24 19:17         ` Greg Kroah-Hartman [this message]
2018-08-24 20:04           ` Roland Dreier
2018-08-24 20:10             ` Guenter Roeck
2018-08-24 20:16               ` Roland Dreier
2018-08-24 20:32                 ` Guenter Roeck
2018-08-31  6:24                   ` Guillaume Tucker
2018-08-31 16:02                     ` Greg Kroah-Hartman
2018-08-24 21:19             ` Guenter Roeck
2018-08-25 13:52             ` Guenter Roeck
2018-08-25 15:07               ` Greg Kroah-Hartman
2018-08-26  2:30                 ` Guenter Roeck
2018-08-29 19:58                   ` Roland Dreier
2018-08-30 12:10                     ` Greg Kroah-Hartman
2018-08-24 20:06           ` Guenter Roeck

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