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From: Eric Nelson <eric@nelint.com>
To: Fawad Lateef <fawadlateef@gmail.com>, GuJiangfei <qiledexin@163.com>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	kernelnewbies <kernelnewbies@kernelnewbies.org>,
	linux-rt-users@vger.kernel.org
Subject: Re: Question regarding RT patches for ARM
Date: Mon, 15 May 2017 07:12:55 -0700	[thread overview]
Message-ID: <646e1a43-78a7-3d04-ee29-1299b7d9d4d8@nelint.com> (raw)
In-Reply-To: <CAGgoGu72RebHt5yf-2WE6Dt3jUNqMph2Uwu+VRK2akRYXo8aow@mail.gmail.com>

Hi Fawad,

> 发自网易邮箱大师
> On 05/15/2017 20:44, Fawad Lateef wrote:
>
> Hi All,
>
> I am working on custom i.MX6 quad hardware and using RT patches for
> almost latest stable kernel 4.9 and facing some weird system stall OR
> 'unhandled page fault - exceptions'.
>

I'm not sure about the unhandled page fault, but the stalls may be
because of the SDMA driver.

See this patch in the Freescale/NXP community for kernel 4.1:
https://github.com/Freescale/meta-freescale/blob/master/recipes-kernel/linux/linux-fslc-imx-rt/0003-Work-around-CPU-stalls-in-the-imx-sdma-driver.patch

Regards,


Eric

  parent reply	other threads:[~2017-05-15 14:12 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <CAGgoGu6=EKCkzbZ0=i+4e+9rJUvxG-SUix1AQVch8VF=OmokVw@mail.gmail.com>
2017-05-15 13:06 ` Question regarding RT patches for ARM Richard Weinberger
     [not found] ` <3aa42082.b247.15c0c29ca5e.Coremail.qiledexin@163.com>
2017-05-15 13:09   ` Fawad Lateef
2017-05-15 13:47     ` Sebastian Andrzej Siewior
2017-05-15 14:07       ` Fawad Lateef
2017-05-15 14:12     ` Eric Nelson [this message]
2017-05-15 14:20       ` Fawad Lateef
2017-05-17 13:40         ` Fawad Lateef
2017-05-17 14:45           ` Eric Nelson
2017-05-17 16:02             ` Sebastian Andrzej Siewior
2017-05-18 11:08               ` Fawad Lateef
2017-05-18 20:10                 ` Sebastian Andrzej Siewior
2017-05-18  8:45             ` Fawad Lateef

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