linux-kernel - Re: [PATCH v5 0/6] arm64: add the time namespace support

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Message-ID: <87d04mvv0g.fsf@nanos.tec.linutronix.de>
Date:   Thu, 23 Jul 2020 22:25:35 +0200
From:   Thomas Gleixner <tglx@...utronix.de>
To:     Andrei Vagin <avagin@...il.com>,
        Catalin Marinas <catalin.marinas@....com>
Cc:     Will Deacon <will@...nel.org>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Vincenzo Frascino <vincenzo.frascino@....com>,
        Mark Rutland <mark.rutland@....com>,
        Dmitry Safonov <dima@...sta.com>,
        Christian Brauner <christian.brauner@...ntu.com>
Subject: Re: [PATCH v5 0/6] arm64: add the time namespace support

Andrei Vagin <avagin@...il.com> writes:
> On Wed, Jul 22, 2020 at 07:15:06PM +0100, Catalin Marinas wrote:
>
> I don't think that we need to handle this case in the kernel. Users
> must understand what they are doing and have to write code so that avoid
> these sort of situations. In general, I would say that in most cases it
> is a bad idea to call setns from a signal handler.

This should not be supported in the first place and just let the
offender die right there.

Thanks,

        tglx