From: Pramod <pramod.gurav@ti.com>
To: Paul Walmsley <paul@pwsan.com>
Cc: Ming Lei <tom.leiming@gmail.com>,
Kevin Hilman <khilman@deeprootsystems.com>,
Govindraj <govindraj.ti@gmail.com>,
"Premi, Sanjeev" <premi@ti.com>,
"linux-omap@vger.kernel.org" <linux-omap@vger.kernel.org>
Subject: Re: beagle hangs in uart3 disabling clocks
Date: Tue, 5 Oct 2010 16:39:51 +0530 [thread overview]
Message-ID: <4CAB077F.5020806@ti.com> (raw)
In-Reply-To: <alpine.DEB.2.00.1010050400210.13816@utopia.booyaka.com>
On Tuesday 05 October 2010 03:33 PM, Paul Walmsley wrote:
> On Tue, 5 Oct 2010, Pramod wrote:
>
>> On Tuesday 05 October 2010 03:17 PM, Paul Walmsley wrote:
>>> On Tue, 5 Oct 2010, Pramod wrote:
>>>
>>>> On Tuesday 05 October 2010 12:49 PM, Paul Walmsley wrote:
>>>>> On Tue, 5 Oct 2010, Pramod wrote:
>>>>>
>>>>>> I applied this patch on my kernel which is based on android-2.6.32
>>>>>> enabling
>>>>>> dynamic printks. I still see the console hang after enabling the logs
>>>>>> in
>>>>>> hwmod.
>>>>>>
>>>>>> I am using zoom3 board. Can you please let me know which defconfig
>>>>>> from lo
>>>>>> master branch can be used to test on zoom3? I would like to test this
>>>>>> patch
>>>>>> with lo master branch and zoom3.
>>>>>
>>>>> Could you please paste your boot log messages here?
>>>>>
>>>>>
>>>>> - Paul
>>>>
>>>> Hi paul,
>>>> These are the boot log messages.
>>>
>>> Is that with the patch applied or without it? If without, please post the
>>> log messages from a boot after you apply the patch.
>>>
>>> - Paul
>>
>> These logs are with the patch shared by you.
>
> Looks to me like it boots fine. If you had hwmod debugging enabled, your
> kernel should have crashed after
>
> omap-hsuart.0: ttyO0 at MMIO 0x4806a000 (irq = 72) is a OMAP UART0
> omap-hsuart.1: ttyO1 at MMIO 0x4806c000 (irq = 73) is a OMAP UART1
> omap-hsuart.2: ttyO2 at MMIO 0x49020000 (irq = 74) is a OMAP UART2
>
> ... but it didn't crash there. I'm not seeing any hwmod debug messages
> though, so you probably don't have DEBUG defined in omap_hwmod.c.
>
> So, I suspect whatever problem you're seeing is unrelated to the problem
> that the patch was intended to solve.
>
>
> - Paul
The hwmod debug messages will be seen when I enable them on the go with:
echo -n 'file omap_hwmod.c +p' > /debug/dynamic_debug/control
This will show lots of logs as below ending with UART3 clock disabling
and a hang.
omap_hwmod:omap_hwmod: uart1: idling
omap_hwmod:omap_hwmod: uart1: disabling clocks
omap_hwmod:omap_hwmod: uart2: idling
omap_hwmod:omap_hwmod: uart2: disabling clocks
omap_hwmod:omap_hwmod: uart1: enabling
omap_hwmod:omap_hwmod: uart1: enabling clocks
omap_hwmod:omap_hwmod: uart2: enabling
omap_hwmod:omap_hwmod: uart2: enabling clocks
omap_hwmod:omap_hwmod: uart3: idling
omap_hwmod:omap_hwmod: uart3: disabling clock
-
Pramod
next prev parent reply other threads:[~2010-10-05 11:09 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-10-03 9:04 beagle hangs in uart3 disabling clocks Ming Lei
2010-10-03 17:27 ` Premi, Sanjeev
2010-10-04 12:13 ` Ming Lei
2010-10-04 12:17 ` Pramod
2010-10-04 12:38 ` Govindraj
2010-10-04 15:18 ` Ming Lei
2010-10-04 15:44 ` Kevin Hilman
2010-10-04 16:17 ` Ming Lei
2010-10-04 18:54 ` Kevin Hilman
2010-10-05 5:36 ` Ming Lei
2010-10-05 6:14 ` Paul Walmsley
2010-10-05 6:47 ` Ming Lei
2010-10-05 7:13 ` Pramod
2010-10-05 7:19 ` Paul Walmsley
2010-10-05 9:34 ` Pramod
2010-10-05 9:47 ` Paul Walmsley
2010-10-05 9:58 ` Pramod
2010-10-05 10:03 ` Paul Walmsley
2010-10-05 11:09 ` Pramod [this message]
2010-10-05 17:26 ` Paul Walmsley
2010-10-05 17:33 ` Kevin Hilman
2010-10-04 15:25 ` Kevin Hilman
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