linux-kernel - Re: [PATCH] kthread: fix boot hang (regression) on MIPS/OpenRISC

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Message-ID: <CA+55aFw4AmyMDbquM9Lm2yGT0pM07386ykLzdaO2X5zyMSSb3Q@mail.gmail.com>
Date:   Mon, 29 May 2017 09:40:16 -0700
From:   Linus Torvalds <torvalds@...ux-foundation.org>
To:     Vegard Nossum <vegard.nossum@...cle.com>
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        Ralf Baechle <ralf@...ux-mips.org>,
        Stafford Horne <shorne@...il.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        linux-mips <linux-mips@...ux-mips.org>,
        Jonas Bonn <jonas@...thpole.se>,
        Stefan Kristiansson <stefan.kristiansson@...nalahti.fi>,
        openrisc@...ts.librecores.org, Oleg Nesterov <oleg@...hat.com>,
        Jamie Iles <jamie.iles@...cle.com>
Subject: Re: [PATCH] kthread: fix boot hang (regression) on MIPS/OpenRISC

On Mon, May 29, 2017 at 12:22 AM, Vegard Nossum
<vegard.nossum@...cle.com> wrote:
> This fixes a regression in commit 4d6501dce079 where I didn't notice
> that MIPS and OpenRISC were reinitialising p->{set,clear}_child_tid to
> NULL after our initialisation in copy_process().

Ok, I'll just take this directly, since it's such an odd set of architectures.

I guess it could come in through the next "misc fixes" pull request
from the -tip tree (which is where the change that broke this came
from), but ..

             Linus