On 05/19/16 14:35, Matthijs van Duin wrote: > On 19 May 2016 at 13:02, Matthijs van Duin <matthijsvanduin@xxxxxxxxx> wrote: >> On 19 May 2016 at 12:19, Peter Ujfalusi <peter.ujfalusi@xxxxxx> wrote: >>> Can you try to apply this patch: >>> https://lkml.org/lkml/2016/5/10/315 >> >> Thanks for the pointer, I'll give it a spin. > > Took far more reboots than I expected, but eventually I caught it: I'm over 30 reboots on my am335x-evmsk and was not able to reproduce. Now building the kernel with your config, I hope it boots on my board. > [ 4.375423] edma 49000000.edma: dma_ccerr_handler: Error interrupt > without error event! > > The occurrence had no adverse effect on the console or rest of system > as far as I could tell. The patch indeed solves the stuck irq :-) So it does work ;) I'm still unable to reproduce even with your config on BBW, but keep trying ;) Meanwhile can you try this as well: diff --git a/drivers/dma/edma.c b/drivers/dma/edma.c index 7c76b558cf82..31ea5d986eb0 100644 --- a/drivers/dma/edma.c +++ b/drivers/dma/edma.c @@ -2285,8 +2285,8 @@ static int edma_probe(struct platform_device *pdev) if (irq >= 0) { irq_name = devm_kasprintf(dev, GFP_KERNEL, "%s_ccint", dev_name(dev)); - ret = devm_request_irq(dev, irq, dma_irq_handler, 0, irq_name, - ecc); + ret = devm_request_irq(dev, irq, dma_irq_handler, IRQF_ONESHOT, + irq_name, ecc); if (ret) { dev_err(dev, "CCINT (%d) failed --> %d\n", irq, ret); return ret; @@ -2300,8 +2300,8 @@ static int edma_probe(struct platform_device *pdev) if (irq >= 0) { irq_name = devm_kasprintf(dev, GFP_KERNEL, "%s_ccerrint", dev_name(dev)); - ret = devm_request_irq(dev, irq, dma_ccerr_handler, 0, irq_name, - ecc); + ret = devm_request_irq(dev, irq, dma_ccerr_handler, + IRQF_ONESHOT, irq_name, ecc); if (ret) { dev_err(dev, "CCERRINT (%d) failed --> %d\n", irq, ret); return ret; -- Péter -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
