linux-kernel - Re: [Bugfix v2 1/5] x86/irq: Do not reuse struct apic_chip_data.old

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Date:	Mon, 28 Dec 2015 19:26:09 -0800
From:	Jeremiah Mahler <jmmahler@...il.com>
To:	Jiang Liu <jiang.liu@...ux.intel.com>
Cc:	Thomas Gleixner <tglx@...utronix.de>,
	Joe Lawrence <joe.lawrence@...atus.com>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>, x86@...nel.org,
	Borislav Petkov <bp@...en8.de>, andy.shevchenko@...il.com,
	Guenter Roeck <linux@...ck-us.net>,
	linux-kernel@...r.kernel.org
Subject: Re: [Bugfix v2 1/5] x86/irq: Do not reuse struct
 apic_chip_data.old_domain as temporary buffer

Gerry,

On Mon, Dec 28, 2015 at 04:24:32PM +0800, Jiang Liu wrote:
[...]
> Hi Jeremiah,
> 	Could you please help to confirm which commit caused the
> regression?
> 1) x86/irq: Do not reuse struct apic_chip_data.old_domain as temporary
> buffer
> 2) x86/irq: Fix a race condition between vector assigning and cleanup
> 
> Thanks,
> Gerry

According to my original bisect [1], it is the second patch.

  [1]: https://lkml.org/lkml/2015/12/20/11

-- 
- Jeremiah Mahler
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