linux-kernel - Re: [cpufreq] kernel BUG at kernel/irq

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Date:	Wed, 25 Jun 2014 17:54:44 +0800
From:	Fengguang Wu <fengguang.wu@...el.com>
To:	Viresh Kumar <viresh.kumar@...aro.org>
Cc:	Peter Zijlstra <peterz@...radead.org>,
	Linux Memory Management List <linux-mm@...ck.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Stephen Rothwell <sfr@...b.auug.org.au>,
	Jet Chen <jet.chen@...el.com>,
	Yuanhan Liu <yuanhan.liu@...el.com>, LKP <lkp@...org>,
	"Su, Tao" <tao.su@...el.com>,
	"Srivatsa S. Bhat" <srivatsa.bhat@...ux.vnet.ibm.com>,
	Stephen Warren <swarren@...dotorg.org>
Subject: Re: [cpufreq] kernel BUG at kernel/irq_work.c:175!

> Nothing specific to my tree, its there in linux-next and PeterZ is
> already working on it:
> 
> https://lkml.org/lkml/2014/6/25/25

That's great! Sorry I should have googled LKML before reporting this error.

Fengguang

> Last diff from him:
> 
> ---
>  kernel/irq_work.c |   12 +-----------
>  1 file changed, 1 insertion(+), 11 deletions(-)
> 
> Index: linux-2.6/kernel/irq_work.c
> ===================================================================
> --- linux-2.6.orig/kernel/irq_work.c
> +++ linux-2.6/kernel/irq_work.c
> @@ -160,21 +160,11 @@ static void irq_work_run_list(struct lli
>         }
>  }
> 
> -static void __irq_work_run(void)
> +static void irq_work_run(void)
>  {
>         irq_work_run_list(&__get_cpu_var(raised_list));
>         irq_work_run_list(&__get_cpu_var(lazy_list));
>  }
> -
> -/*
> - * Run the irq_work entries on this cpu. Requires to be ran from hardirq
> - * context with local IRQs disabled.
> - */
> -void irq_work_run(void)
> -{
> -       BUG_ON(!in_irq());
> -       __irq_work_run();
> -}
>  EXPORT_SYMBOL_GPL(irq_work_run);
--
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