From: Alexander Holler <holler@ahsoftware.de>
To: Jiang Liu <jiang.liu@linux.intel.com>,
Thomas Gleixner <tglx@linutronix.de>,
Mark Rustad <mark.d.rustad@intel.com>,
Alex Deucher <alexdeucher@gmail.com>,
Ingo Molnar <mingo@redhat.com>, "H. Peter Anvin" <hpa@zytor.com>,
x86@kernel.org
Cc: Tony Luck <tony.luck@intel.com>, linux-kernel@vger.kernel.org
Subject: Re: [Bugfix] x86, irq: Fix a regression caused by commit b5dc8e6c21e7
Date: Sun, 9 Aug 2015 12:14:44 +0200 [thread overview]
Message-ID: <55C72814.9010404@ahsoftware.de> (raw)
In-Reply-To: <1439108128-18441-1-git-send-email-jiang.liu@linux.intel.com>
Am 09.08.2015 um 10:15 schrieb Jiang Liu:
> Alex Deucher, Mark Rustad and Alexander Holler reported a regression
> with the latest v4.2-rc4 kernel, which breaks some SATA controllers.
> With multi-MSI capable SATA controllers, only the first port works,
> all other ports times out when executing SATA commands. This regression
> bisects to 52f518a3a7c2 ("x86/MSI: Use hierarchical irqdomains to manage
> MSI interrupts"), but it's not the root cause, it just triggers a bug
> caused by b5dc8e6c21e7 ("x86/irq: Use hierarchical irqdomain to manage
> CPU interrupt vectors").
>
> With this patch applied, the affected SATA controllers work as expected.
>
> Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
> Reported-by: Alex Deucher <alexdeucher@gmail.com>
> Reported-by: Mark Rustad <mrustad@gmail.com>
> Reported-by: Alexander Holler <holler@ahsoftware.de>
> ---
> Hi Alex, Mark and Alexandler,
> Sorry for the long delay to root cause this regression, it's
> really annoying. Could you please help test this patch against the
> latest v4.2-rcx?
Works. Thanks.
Tested-by: Alexander Holler <holler@ahsoftware.de>
next prev parent reply other threads:[~2015-08-09 10:15 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-08-09 8:15 [Bugfix] x86, irq: Fix a regression caused by commit b5dc8e6c21e7 Jiang Liu
2015-08-09 10:14 ` Alexander Holler [this message]
2015-08-09 14:11 ` Jiang Liu
2015-08-10 15:00 ` Alex Deucher
2015-08-11 1:06 ` Jiang Liu
2015-08-13 19:46 ` Alex Deucher
2015-08-13 20:15 ` Alex Deucher
2015-08-13 22:13 ` Alex Deucher
2015-08-25 4:03 ` Alex Deucher
2015-08-25 4:46 ` Jiang Liu
2015-08-10 16:47 ` Rustad, Mark D
2015-08-17 21:02 ` Alex Deucher
2015-08-18 12:53 ` Thomas Gleixner
2015-08-17 21:11 ` Thomas Gleixner
2015-08-18 15:20 ` [Bugfix] x86, irq: Fix an error in building CPU vector to IRQ number mapping for MSI Jiang Liu
2015-08-18 16:21 ` [tip:x86/urgent] x86/irq: Build correct vector mapping for multiple MSI interrupts tip-bot for Jiang Liu
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