On Mon, 2015-09-28 at 15:23 +0800, yitian wrote: > > > > From: Andy Shevchenko [mailto:[email protected]] > > Sent: Monday, September 28, 2015 3:06 PM > > To: Viresh Kumar <[email protected]> > > Cc: yitian <[email protected]>; Viresh Kumar > > <[email protected]>; Andy Shevchenko > > <[email protected]>; Vinod Koul < > > [email protected]>; > > Dan Williams <[email protected]>; dmaengine > > <[email protected]>; Linux Kernel Mailing List > > <[email protected]> > > Subject: Re: [PATCH 1/1] dmaengine: dw: resolve recursion > > > I am not sure if this is a sane way of doing that, and we were > > > scanning > > > the descriptors for some valid reason.. > > > > Actually one of the patches in a pile sitting in my private repo is > > also including similar change. In my case the reason is to support > > cyclic transfers natively. > > > > Yes, i am using DW DMAC to support cyclic transfer. > Currently it is very easy to get recursion lock crash, but > after this patch everything is fine on my device.
What is an actual hardware you are running kernel on? -- Andy Shevchenko <[email protected]> Intel Finland Oy -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
