On 09/10/2014 04:15 PM, Frans Klaver wrote: > On Tue, Sep 09, 2014 at 09:41:20PM +0200, Sebastian Andrzej Siewior wrote: >> On 09/08/2014 08:33 PM, Frans Klaver wrote: >>> Thanks. I'll give it a spin on Wednesday. >> >> Could you please pull the upcoming v9 first? >> >> git://git.breakpoint.cc/bigeasy/linux.git uart_v9_pre1 >> >> This solves a few of my am335x related issues. > > Using v9_pre1, I get a kernel panic in edma_dma_pause() on echan->edesc > being NULL. I do get data before this happens. This is at high speed, > high rate. No mention of the irq having too much to do, though. The more > data I transmit, the more likely this is to occur. Hmm. This shouldn't happen because if dma->rx_running is set, then there should be a descriptor to pause. Could check how this could happen? (and which event tries to do so) In the meantime, the lower part of [0] should fix the NULL bug. [0] https://lkml.org/lkml/2014/7/29/506 > I don't currently have the setup to lower the baudrate. I would probably > need to reproduce this on a beaglebone, instead of our custom board. > I'll see if I can do that. > > If you need more info, just let me know. I just pushed uart_v9_pre2 and I will post it once I rebased it on top Greg's latest. There was a bug where THRE could be active longer than needed caused a few not needed interrupts until the FIFO was empty again. My "less on file" test case did not fail anymore with this. > Thanks, > Frans Sebastian -- 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
