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Re: MPC8xx Quicc SMC Driver Lockup

From: Sergei Gavrikov <sergei dot gavrikov at gmail dot com>
To: "Retallack, Mark" <mark dot retallack at siemens dot com>
Cc: eCos Patches <ecos-patches at ecos dot sourceware dot org>
Date: Sun, 12 Dec 2010 13:21:57 +0200 (EET)
Subject: Re: MPC8xx Quicc SMC Driver Lockup
References: <C4E8D0478C3D194FA02B65678CBB6C6087A78968FB@DEFTHW99EC5MSX.ww902.siemens.net> <alpine.DEB.2.00.1012072025210.20492@sg-laptop>

On Tue, 7 Dec 2010, Sergei Gavrikov wrote:
> On Mon, 6 Dec 2010, Retallack, Mark wrote:
> 
> > I have found an issue with the SMC (and SCC) quicc serial driver where
> > if the CPM is under heavy load, the serial driver will stop
> > transmitting any data which can lead to the serial driver locking up
> > (if using buffered serial driver and blocking writes). This issue
> > shows up when the Serial driver is re-configured.

[snip]

> I looked on the patch and tested build process. The patch looks fine
> *for me*, but, as I have not the same targets, I cannot test run-time
> stuff. Could someone from maintainers, please, put his hands on this?
> Or what could be your verdict?

I hope that silence gives consent. Checked-in. Mark, thank you for your
contribution.

Sergei

References:
- MPC8xx Quicc SMC Driver Lockup
  - From: Retallack, Mark
- Re: MPC8xx Quicc SMC Driver Lockup
  - From: Sergei Gavrikov

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