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SubjectRe: [lkp] [net] af1fee9821: BUG:spinlock_trylock_failure_on_UP_on_CPU
Hi,

I'm quite surprised too.

I asked Raju to see if he can re-produce, and then try again with the
microsemi_phy disabled and see it that makes a difference.

If Raju gets stuck on this, then I will try to help our during the after-noon.

/Allan

On 07/11/16 10:31, Andrew Lunn wrote:
> EXTERNAL EMAIL
>
>
> On Mon, Nov 07, 2016 at 10:26:28AM +0800, kernel test robot wrote:
> >
> > FYI, we noticed the following commit:
> >
> > https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git master
> > commit af1fee98219992ba2c12441a447719652ed7e983 ("net: phy: Add support for Microsemi VSC 8530/40 Fast Ethernet PHY")
>
> Humm, interesting. I've no idea how this patch can trigger such a
> warning. The USB gadget does not have an Ethernet PHY, let alone a
> Microsemi 8530/40 Fast Ethernet PHY this patch adds.
>
> However, it seems nicely documented how to reproduce this. Allan, can
> you setup such a system? Reproduce it, then revert the change and see
> if it still happens.
>
> Andrew

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