linux-kernel - RE: mei: cancel stall timers in mei

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Date:	Thu, 7 Nov 2013 12:52:47 +0000
From:	"Winkler, Tomas" <tomas.winkler@...el.com>
To:	Eugene Shatokhin <eugene.shatokhin@...alab.ru>
CC:	"Usyskin, Alexander" <alexander.usyskin@...el.com>,
	Nicol? Costanza <abitrules@...oo.it>,
	Alex Burmashev <alex.burmashev@...alab.ru>,
	LKML <linux-kernel@...r.kernel.org>
Subject: RE: mei: cancel stall timers in mei_reset



> -----Original Message-----
> From: Eugene Shatokhin [mailto:eugene.shatokhin@...alab.ru]
> Sent: Thursday, November 07, 2013 08:38
> To: Winkler, Tomas
> Cc: Usyskin, Alexander; Nicol? Costanza; Alex Burmashev; LKML
> Subject: RE: mei: cancel stall timers in mei_reset
> 
> Hi,
> 
> > You can safely comment out all of the timer_work.
> 
> Well, I rebuilt the kernel with the schedule_... commented out (in
> mei_me_pci_resume(), for the present). The errors are no longer visible in the
> log. The full log is attached.
> 

Looks like there is a hiccup in scheduling during resume and timer work is kicked before its time and starts unnecessary  the reset flow.
Can you check  that the device is in good state (<debugfs>/mei/devastate , it should be ENABLED).

We will work on some solution. 

Thanks
Tomas