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Date:   Thu, 14 May 2020 09:46:06 +0200
From:   Christian Brauner <christian.brauner@...ntu.com>
To:     John Paul Adrian Glaubitz <glaubitz@...sik.fu-berlin.de>
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

On Wed, May 13, 2020 at 11:26:35PM +0200, John Paul Adrian Glaubitz wrote:
> Hi Tony!
> 
> On 5/13/20 11:19 PM, Luck, Tony wrote:
> >> 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.
> 
> I could test it.

Hey Adrian,

That would be excellent and much appreciated.
Do you think you can get it tested soon?

> 
> 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.

Christian

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