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

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Message-ID: <6b298416-1e64-eee7-0bb4-3b1f7f67adc6@physik.fu-berlin.de>
Date:   Thu, 14 May 2020 09:53:49 +0200
From:   John Paul Adrian Glaubitz <glaubitz@...sik.fu-berlin.de>
To:     Christian Brauner <christian.brauner@...ntu.com>
Cc:     "Luck, Tony" <tony.luck@...el.com>,
        "Yu, Fenghua" <fenghua.yu@...el.com>,
        "linux-ia64@...r.kernel.org" <linux-ia64@...r.kernel.org>,
        Al Viro <viro@...iv.linux.org.uk>,
        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

Hi Christian!

On 5/14/20 9:46 AM, Christian Brauner wrote:
>>> 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.
>>
>> I could test it.
> 
> Hey Adrian,
> 
> That would be excellent and much appreciated.
> Do you think you can get it tested soon?

The kernel is currently building, you should get it by the evening (CEST).

The machine also serves as a Debian buildd which is why it's a bit more
busy than other servers.

>> As for getting a working cross-compiler for ia64 in Debian, this has
>> been on my TODO list for a while now. Building a cross-compiler for
>> ia64 is a bit more tricky due to it's dependency on the external
>> libunwind.
> 
> I hit that roadblock as well but yeah, a cross-compiler would be
> helpful.

It's not difficult, it's just a bit of annoying package work including
some trial and error testing.

Once the cross-compiler is in Debian, it will be available in Ubuntu as well.

Adrian

-- 
 .''`.  John Paul Adrian Glaubitz
: :' :  Debian Developer - glaubitz@...ian.org
`. `'   Freie Universitaet Berlin - glaubitz@...sik.fu-berlin.de
  `-    GPG: 62FF 8A75 84E0 2956 9546  0006 7426 3B37 F5B5 F913