linux-kernel - Re: Oops on Power8 (was Re: [PATCH v2 1/7] workqueue: make workqueue available early during boot)

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Message-ID: <87r37c4mhn.fsf@concordia.ellerman.id.au>
Date:   Wed, 19 Oct 2016 22:16:52 +1100
From:   Michael Ellerman <mpe@...erman.id.au>
To:     Tejun Heo <tj@...nel.org>
Cc:     torvalds@...ux-foundation.org, linux-kernel@...r.kernel.org,
        jiangshanlai@...il.com, akpm@...ux-foundation.org,
        kernel-team@...com,
        "linuxppc-dev\@lists.ozlabs.org" <linuxppc-dev@...ts.ozlabs.org>,
        Balbir Singh <bsingharora@...il.com>
Subject: Re: Oops on Power8 (was Re: [PATCH v2 1/7] workqueue: make workqueue available early during boot)

Tejun Heo <tj@...nel.org> writes:

> Hello, Michael.
>
> On Tue, Oct 18, 2016 at 03:37:42PM +1100, Michael Ellerman wrote:
>> That doesn't compile, wq doesn't exist.
>> 
>> I guessed that you meant:
>> 
>> +       wq_numa_init();
>> +       list_for_each_entry(wq, &workqueues, list)
>> +               wq_update_unbound_numa(wq, smp_processor_id(), true);
>
> Yeap, sorry about that.

No worries.

>> And that does boot.
>> 
>> The sysrq-t output is below, it's rather large.
>
> Didn't expect that many cpus but it looks good.

I have another system here with twice as many CPUs if that would help ;)

> I'll post proper patches soon.

Thanks. Can you pull the current series out of linux-next for now until
you merge the new series?

cheers