netdev - Re: [Bugme-new] [Bug 18492] New: kernel softirq warning on boot

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Message-ID: <AANLkTinE50xFx9nShGBeOf483G2FhogO-BCj=dfHBZS7@mail.gmail.com>
Date:	Tue, 14 Sep 2010 22:45:19 +0200
From:	Michal Suchanek <hramrach@...trum.cz>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	netdev@...r.kernel.org, bugzilla-daemon@...zilla.kernel.org,
	bugme-daemon@...zilla.kernel.org,
	Herbert Xu <herbert@...dor.hengli.com.au>
Subject: Re: [Bugme-new] [Bug 18492] New: kernel softirq warning on boot

On 14 September 2010 21:07, Andrew Morton <akpm@...ux-foundation.org> wrote:
>
> (switched to email.  Please respond via emailed reply-to-all, not via the
> bugzilla web interface).
>
> On Tue, 14 Sep 2010 15:19:30 GMT
> bugzilla-daemon@...zilla.kernel.org wrote:
>
>> https://bugzilla.kernel.org/show_bug.cgi?id=18492
>>
>>            Summary: kernel softirq warning on boot
>>            Product: Drivers
>>            Version: 2.5
>>     Kernel Version: 2.6.36-rc4
>
> Looks like a post-2.6.35 regression.  I'd be looking at the

Indeed, I found a log from booting 2.6.35 kernel while trying to work
around anouther issue and the warning did not show in it.

> rcu_read_unlock_bh() in netpoll_rx(), added by "netpoll: Fix RCU
> usage".

Do you mean de85d99eb7b595f6751550184b94c1e2f74a828b?

I am not sure reverting just that would work, nor that the kernel
around that point is in shape for trying on a system I would want to
still use. It's way back in history for a kernel which is just to be
released.

Thanks

Michal
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