linux-kernel - Re: ODEBUG: Out of memory. ODEBUG disabled

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Date:   Fri, 9 Nov 2018 13:42:24 -0800
From:   Yang Shi <yang.shi@...ux.alibaba.com>
To:     Qian Cai <cai@....us>, open list <linux-kernel@...r.kernel.org>
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        Waiman Long <longman@...hat.com>,
        Arnd Bergmann <arnd@...db.de>,
        "Joel Fernandes (Google)" <joel@...lfernandes.org>,
        Zhong Jiang <zhongjiang@...wei.com>
Subject: Re: ODEBUG: Out of memory. ODEBUG disabled



On 11/9/18 1:36 PM, Qian Cai wrote:
> It is a bit annoying on this aarch64 server with 64 CPUs that is
> booting the latest mainline (3541833fd1f2) causes object debugging
> always running out of memory.

May you please paste the detail failure log?

>
> I have to boot the kernel with only 16 CPUs instead (nr_cpus=16)
> to make it work. Is it expected that object debugging is not going
> to work with large machines?

I don't think so. I'm supposed it works well with large CPU number on x86.

Thanks,
Yang