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From: "Paweł Jasiak" <pawel@jasiak.xyz>
To: Jan Kara <jack@suse.cz>
Cc: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org,
	x86@kernel.org, Thomas Gleixner <tglx@linutronix.de>,
	Brian Gerst <brgerst@gmail.com>,
	Andy Lutomirski <luto@kernel.org>
Subject: Re: PROBLEM: fanotify_mark EFAULT on x86
Date: Mon, 2 Nov 2020 18:16:43 +0100	[thread overview]
Message-ID: <20201102171643.GA5870@gmail.com> (raw)
In-Reply-To: <20201102122638.GB23988@quack2.suse.cz>

On 02/11/20, Jan Kara wrote:
> Strange. Thanks for report. Looks like some issue got created / exposed
> somewhere between 5.5 and 5.9 (actually probably between 5.5 and 5.7
> because the Linaro report you mentioned [1] is from 5.7-rc6). There were
> no changes in this area in fanotify, I think it must have been some x86
> change that triggered this. Hum, looking into x86 changelog in that time
> range there was a series rewriting 32-bit ABI [2] that got merged into
> 5.7-rc1. Can you perhaps check whether 5.6 is good and 5.7-rc1 is bad?

5.6 works.
5.7-rc1 doesn't work.

-- 

Paweł Jasiak

  reply	other threads:[~2020-11-02 17:16 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-11-01 21:27 PROBLEM: fanotify_mark EFAULT on x86 Paweł Jasiak
2020-11-01 21:38 ` Matthew Wilcox
2020-11-01 22:27   ` Paweł Jasiak
2020-11-02 12:26 ` Jan Kara
2020-11-02 17:16   ` Paweł Jasiak [this message]
2020-11-03 21:17   ` Paweł Jasiak
2020-11-04 10:14     ` Jan Kara
2020-11-23 16:46     ` Jan Kara
2020-11-23 22:46       ` Paweł Jasiak
2020-11-24  8:45         ` Borislav Petkov
2020-11-24 10:20           ` Jan Kara
2020-11-24 10:28             ` Borislav Petkov
2020-11-26 10:48               ` Jan Kara
2020-11-26 10:52                 ` Borislav Petkov
2020-11-25 19:31             ` Naresh Kamboju
2020-11-26 10:48               ` Jan Kara
2020-11-23 23:07       ` [PATCH] fanotify: Fix fanotify_mark() on 32-bit archs kernel test robot

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