linux-kernel - RE: [PATCH] ia64: enable HAVE_COPY_THREAD_TLS, switch to kernel_clone

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Message-ID: <3908561D78D1C84285E8C5FCA982C28F7F6266E0@ORSMSX115.amr.corp.intel.com>
Date:   Wed, 13 May 2020 21:19:41 +0000
From:   "Luck, Tony" <tony.luck@...el.com>
To:     Christian Brauner <christian.brauner@...ntu.com>,
        "Yu, Fenghua" <fenghua.yu@...el.com>,
        "linux-ia64@...r.kernel.org" <linux-ia64@...r.kernel.org>,
        Al Viro <viro@...iv.linux.org.uk>
CC:     Arnd Bergmann <arnd@...db.de>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...nel.org>,
        Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
        "Peter Zijlstra (Intel)" <peterz@...radead.org>,
        Qais Yousef <qais.yousef@....com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH] ia64: enable HAVE_COPY_THREAD_TLS, switch to
 kernel_clone_args

> I tried my very best to test this patch including installing Debian 3
> and 4 to try and get my hands on a gcc version that would allow
> cross-compiling for ia64. But no, even that wasn't possible let alone a
> working qemu for ia64. So this is largely untested but hopefully a
> straightforward change. If this breaks something we will hear from
> people if they still care about new kernels on ia64 since they won't be
> able to get any further than trying to start init. :) If this patch
> breaks it, I'll fix it.

My last functional ia64 machine no longer powers on. Unclear if it's just
a broken power supply or something more serious. With almost nobody
in offices/labs anymore my search for another machine is proceeding
slowly.

Which is to say ... it won't be me noticing any breakage (at least not for
a while).

I think Al Viro bought an ia64 on ebay a while back ... if that's still running
perhaps he'll test?

-Tony