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From: Oleg Nesterov <oleg@redhat.com>
To: Borislav Petkov <bp@alien8.de>
Cc: Mark Mossberg <mark.mossberg@gmail.com>,
	tglx@linutronix.de, mingo@redhat.com, x86@kernel.org,
	linux-kernel@vger.kernel.org, hpa@zytor.com, jannh@google.com,
	kyin@redhat.com
Subject: Re: [PATCH v2] x86/dumpstack: Fix misleading instruction pointer error message
Date: Tue, 3 Nov 2020 19:11:15 +0100	[thread overview]
Message-ID: <20201103181114.GC23992@redhat.com> (raw)
In-Reply-To: <20201103175237.GD4111@zn.tnic>

On 11/03, Borislav Petkov wrote:
>
> On Tue, Nov 03, 2020 at 06:47:44PM +0100, Oleg Nesterov wrote:
> > > I'm thinking this should not use the atomic variant if it can get called
> > > in !atomic context too.
> >
> > For what?
>
> I'm thinking copy_code() should not use copy_from_user_nmi() if former
> can be called in non-atomic context too.

I understand, but why do you think this makes sense?

Say, do you think it is fine to block in fuse_readpage() ?

Anyway, this is off-topic and I won't argue.

Oleg.


  reply	other threads:[~2020-11-03 18:11 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-02  4:29 [PATCH v2] x86/dumpstack: Fix misleading instruction pointer error message Mark Mossberg
2020-10-02 10:26 ` [tip: x86/core] " tip-bot2 for Mark Mossberg
2020-11-03 12:50 ` [PATCH v2] " Oleg Nesterov
2020-11-03 17:15   ` Borislav Petkov
2020-11-03 17:47     ` Oleg Nesterov
2020-11-03 17:52       ` Borislav Petkov
2020-11-03 18:11         ` Oleg Nesterov [this message]
2020-11-03 18:20           ` Borislav Petkov
2020-11-16 22:01             ` Thomas Gleixner
2020-11-16 23:04               ` Andy Lutomirski
2020-11-16 23:37                 ` Thomas Gleixner
2020-11-17  3:29                   ` Andy Lutomirski
2020-11-17  9:54               ` Borislav Petkov
2020-11-17 17:31               ` Oleg Nesterov

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