Hi Minas, Am 09.04.19 um 08:54 schrieb Jisheng Zhang: > On Mon, 8 Apr 2019 16:05:51 +0800 Jisheng Zhang wrote: > >> Hi Stefan, >> >> On Mon, 8 Apr 2019 09:57:14 +0200 Stefan Wahren wrote: >> >>> >>> Hi Jisheng, >>> >>> >>> thanks for sending this patch. I already reported this issue last year >>> [1], but Microchip wasn't able to provide a fix. >>> >>> I will give it a try. >>> >>>> The second one: 8000 usb interrupts per second when idle. This is abnormal. >>>> any idea? Is it due to the lan78xx? >>> Does this downstream patch [2] improve your situation? >> Thanks a lot. Will try the patch tonight. > I tried this patch, it doesn't help. One more observation: if I > ifconfig eth0 down, I can still get 8000 usb interrupts per second. Not sure > whether this is usb issue or not. Jisheng reports a lot of USB interrupts while the lan78xx driver on Raspberry Pi 3B+ is in idle. Any suggestions to narrow this down? Stefan > > Thanks >
