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

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Date:   Thu, 14 May 2020 12:51:27 +0200
From:   Christian Brauner <christian.brauner@...ntu.com>
To:     Andreas Schwab <schwab@...ux-m68k.org>
Cc:     John Paul Adrian Glaubitz <glaubitz@...sik.fu-berlin.de>,
        "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 Thu, May 14, 2020 at 12:45:41PM +0200, Andreas Schwab wrote:
> On Mai 14 2020, Christian Brauner wrote:
> 
> >         pid = syscall(189 /* __NR_clone2 */, SIGCHLD, stack, STACK_SIZE, NULL, NULL);
> 
> Syscall 189 doesn't exist on ia64, they start with 1024 (and __NR_clone2
> is 1213).

Ugh, the numbering needs to be:

# Add 1024 to <number> will get the actual system call number

well ok.

Thanks!
Christian