From: jiada_wang@mentor•com (jiada)
To: linux-arm-kernel@lists•infradead.org
Subject: [PATCH] ARM: imx: replace imx6q_restart() with mxc_restart()
Date: Tue, 29 Oct 2013 20:13:02 -0700 [thread overview]
Message-ID: <5270793E.9000605@mentor.com> (raw)
In-Reply-To: <20131028074524.GE2839@S2101-09.ap.freescale.net>
Hi
On 10/28/2013 12:45 AM, Shawn Guo wrote:
> On Sun, Oct 27, 2013 at 07:41:23PM -0700, jiada wrote:
>> as per discussion locally, when do you think you will post the fix patch
>> for the system hang I observed?
>> I would like to test for your patch, and then pull it to my kernel.
>
> Sorry, Jiada. After another closer look at the fix I provided before,
> it's not correct, because emergency_restart() is a function that is safe
> to call in interrupt context, while migrate_to_reboot_cpu() is not.
> That said, we cannot call migrate_to_reboot_cpu() in emergency_restart()
> at all.
>
> I just found a more easier fix at platform level. The following is what
> you need to do on your 3.5 kernel.
>
> 1. Apply the following change
>
> https://git.linaro.org/gitweb?p=people/shawnguo/linux-2.6.git;a=commitdiff;h=6050d181a4fd4abb745506a6e565d55f1f9df964
>
> 2. Remove imx_src_prepare_restart() from imx6q_restart().
>
> I will send a patch against the latest kernel.
>
Thanks Shawn, I have verified with these two changes,
system reboot by "echo b > /proc/sysrq-trigger" works
for me.
> Shawn
>
Thanks,
Jiada
next prev parent reply other threads:[~2013-10-30 3:13 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-06 9:06 [PATCH] ARM: imx: replace imx6q_restart() with mxc_restart() Shawn Guo
2013-10-08 15:32 ` Nathan Lynch
2013-10-08 15:49 ` Shawn Guo
[not found] ` <857E9EDCA6C0904DB3357321AA9123EB62506837@NA-MBX-01.mgc.mentorg.com>
2013-10-21 3:32 ` jiada
2013-10-21 4:59 ` Shawn Guo
[not found] ` <857E9EDCA6C0904DB3357321AA9123EB62506BEA@NA-MBX-01.mgc.mentorg.com>
2013-10-21 6:13 ` jiada
2013-10-21 7:04 ` Shawn Guo
2013-10-28 2:41 ` jiada
2013-10-28 2:52 ` Shawn Guo
2013-10-28 7:45 ` Shawn Guo
2013-10-30 3:13 ` jiada [this message]
2013-10-30 17:54 ` Russell King - ARM Linux
2013-10-31 5:23 ` Shawn Guo
2013-10-31 5:31 ` jiada
2013-10-28 5:17 ` Olof Johansson
2013-10-28 8:14 ` Shawn Guo
2013-10-28 17:46 ` Olof Johansson
2013-10-29 2:06 ` Shawn Guo
2013-10-29 8:53 ` Lothar Waßmann
2013-10-29 11:37 ` Russell King - ARM Linux
2013-10-29 13:37 ` Shawn Guo
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