From: Joseph Salisbury <joseph.salisbury@canonical.com>
To: Laura Abbott <labbott@redhat.com>, matt@codeblueprint.co.uk
Cc: waiman.long@hpe.com, ard.biesheuvel@linaro.org,
Borislav Petkov <bp@alien8.de>,
Linus Torvalds <torvalds@linux-foundation.org>,
tytso@mit.edu, Arnd Bergmann <arnd@arndb.de>,
Greg KH <gregkh@linuxfoundation.org>,
scott.norton@hpe.com, doug.hatch@hpe.com,
"stable@vger.kernel.org" <stable@vger.kernel.org>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, "H. Peter Anvin" <hpa@zytor.com>,
x86@kernel.org, linux-efi@vger.kernel.org,
LKML <linux-kernel@vger.kernel.org>
Subject: Re: [REGRESSION][v4.9.y][v4.10.y] x86/efi: Only map RAM into EFI page tables if in mixed-mode
Date: Fri, 3 Feb 2017 09:16:48 -0500 [thread overview]
Message-ID: <f8b36e38-c1f6-82f8-0ed9-0c934ace44ac@canonical.com> (raw)
In-Reply-To: <d5f1ba6b-06ed-b5b0-1b0e-58d5f385f7c2@redhat.com>
On 02/02/2017 03:36 PM, Laura Abbott wrote:
> On 02/02/2017 12:17 PM, Joseph Salisbury wrote:
>> Hi Matt,
>>
>> A kernel bug report was opened against Ubuntu [0]. After a kernel
>> bisect, it was found that reverting the following commit resolved this bug:
>>
>> commit 1297667083d5442aafe3e337b9413bf02b114edb
>> Author: Matt Fleming <matt@codeblueprint.co.uk>
>> Date: Mon Sep 19 13:09:09 2016 +0100
>>
>> x86/efi: Only map RAM into EFI page tables if in mixed-mode
>>
>>
>> The regression was introduced as of v4.8-rc8. It also still affects
>> current mainline.
>>
>> I was hoping to get your feedback, since you are the patch author. Do
>> you think gathering any additional data will help diagnose this issue,
>> or would it be best to submit a revert request?
>>
>>
>> Thanks,
>>
>> Joe
>>
>> [0] http://pad.lv/1659340
>>
>>
>> --
>> To unsubscribe from this list: send the line "unsubscribe stable" in
>> the body of a message to majordomo@vger.kernel.org
>> More majordomo info at http://vger.kernel.org/majordomo-info.html
>>
> You might try https://marc.info/?l=linux-kernel&m=148553171703761
> which fixed https://bugzilla.redhat.com/show_bug.cgi?id=1384238
>
> Thanks,
> Laura
This patch resolves the bug for multiple users. Thanks again for the
pointer, Laura and Ard!
Joe
next prev parent reply other threads:[~2017-02-03 14:16 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-02-02 20:17 [REGRESSION][v4.9.y][v4.10.y] x86/efi: Only map RAM into EFI page tables if in mixed-mode Joseph Salisbury
2017-02-02 20:34 ` Ard Biesheuvel
2017-02-02 20:36 ` Laura Abbott
2017-02-02 20:49 ` Joseph Salisbury
2017-02-03 14:16 ` Joseph Salisbury [this message]
2017-02-03 16:35 ` Linus Torvalds
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