netdev - RE: [PATCH REPOST 1/2] can: flexcan: fix deadlock when using self wakeup

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Date:   Thu, 29 Aug 2019 07:30:20 +0000
From:   Joakim Zhang <qiangqing.zhang@....com>
To:     Sean Nyekjaer <sean@...nix.com>,
        "mkl@...gutronix.de" <mkl@...gutronix.de>,
        "linux-can@...r.kernel.org" <linux-can@...r.kernel.org>
CC:     "wg@...ndegger.com" <wg@...ndegger.com>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        dl-linux-imx <linux-imx@....com>,
        Martin Hundebøll <martin@...nix.com>
Subject: RE: [PATCH REPOST 1/2] can: flexcan: fix deadlock when using self
 wakeup


> -----Original Message-----
> From: Sean Nyekjaer <sean@...nix.com>
> Sent: 2019年8月28日 21:25
> To: Joakim Zhang <qiangqing.zhang@....com>; mkl@...gutronix.de;
> linux-can@...r.kernel.org
> Cc: wg@...ndegger.com; netdev@...r.kernel.org; dl-linux-imx
> <linux-imx@....com>; Martin Hundebøll <martin@...nix.com>
> Subject: Re: [PATCH REPOST 1/2] can: flexcan: fix deadlock when using self
> wakeup
> 
> 
> 
> On 20/08/2019 13.55, Sean Nyekjaer wrote:
> >
> > I have added some more debug, same test setup:
> >
> https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgist.gith
> ub.com%2Fsknsean%2F81208714de23aa3639d3e31dccb2f3e0&amp;data=02%
> 7C01%7Cqiangqing.zhang%40nxp.com%7C1dae7ec4f191462be43d08d72bbb1
> e82%7C686ea1d3bc2b4c6fa92cd99c5c301635%7C0%7C0%7C63702595498952
> 9813&amp;sdata=u2t747L4mi87ejuaLwl4WWJNJIFIzvlEfNE%2BSLq2Kbc%3D&
> amp;reserved=0
> >
> > root@...26:~# systemctl suspend
> >
> > ...
> >
> https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgist.gith
> ub.com%2Fsknsean%2F2a786f1543305056d4de03d387872403&amp;data=02
> %7C01%7Cqiangqing.zhang%40nxp.com%7C1dae7ec4f191462be43d08d72bbb
> 1e82%7C686ea1d3bc2b4c6fa92cd99c5c301635%7C0%7C0%7C6370259549895
> 29813&amp;sdata=WbI2eeIlrNC6HUSviagaiAyi4YpK%2B2bC3al4Yn9EXZM%3D
> &amp;reserved=0
> >
> > /Sean
> 
> Any luck reproducing this?

Hi Sean,

I'm sorry that I can't get the debug log as the site can't be reached. And I connect two boards to do test at my side, this issue can't be reproduced.

Best Regards,
Joakim Zhang
> /Sean