From: Borislav Petkov <bp@suse.de>
To: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Andy Lutomirski <luto@kernel.org>, Joerg Roedel <joro@8bytes.org>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, "H. Peter Anvin" <hpa@zytor.com>,
Peter Zijlstra <peterz@infradead.org>,
LKML <linux-kernel@vger.kernel.org>,
Joerg Roedel <jroedel@suse.de>,
"Rafael J. Wysocki" <rjw@rjwysocki.net>
Subject: Re: [PATCH] x86/ldt: Fix support_pte_mask filtering in map_ldt_struct()
Date: Thu, 19 Apr 2018 15:00:11 +0200 [thread overview]
Message-ID: <20180419130011.GG3896@pd.tnic> (raw)
In-Reply-To: <20180418121403.GA3434@pd.tnic>
On Wed, Apr 18, 2018 at 02:18:57PM +0200, Borislav Petkov wrote:
> Btw, even with Jörg's fix,
>
> fb43d6cb91ef ("x86/mm: Do not auto-massage page protections")
Some updates.
1. current linus master with Joerg's fix triple-faults on the IVB laptop
during resume from disk.
2. current linus master with Joerg's fix + those two:
C Apr 17 Dave Hansen ( : 67) [PATCH 1/2] x86, pti: fix boot problems from Global-bit setting
C Apr 17 Dave Hansen ( : 81) └─>[PATCH 2/2] x86, pti: fix boot warning from Global-bit setting
triplefaults too.
Bisection confirms again fb43d6cb91ef is the first bad:
fb43d6cb91ef x86/mm: Do not auto-massage page protections <--- NOT OK
6baf4bec02db x86/espfix: Document use of _PAGE_GLOBAL <--- OK
--
Regards/Gruss,
Boris.
SUSE Linux GmbH, GF: Felix Imendörffer, Jane Smithard, Graham Norton, HRB 21284 (AG Nürnberg)
--
next prev parent reply other threads:[~2018-04-19 13:00 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-16 9:43 [PATCH] x86/ldt: Fix support_pte_mask filtering in map_ldt_struct() Joerg Roedel
2018-04-16 15:16 ` Andy Lutomirski
2018-04-16 15:39 ` Dave Hansen
2018-04-18 12:18 ` Borislav Petkov
2018-04-19 13:00 ` Borislav Petkov [this message]
2018-04-19 14:11 ` Joerg Roedel
2018-04-19 14:58 ` Michal Kubecek
2018-04-19 15:11 ` Joerg Roedel
2018-04-19 16:04 ` Borislav Petkov
2018-04-19 19:22 ` Dave Hansen
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