On 12/15/20 9:59 PM, Stefan Tatschner wrote: > I went one layer deeper and took a look at peak_usb_ndo_start_xmit(), > especially the usb_submit_urb() call. The problem seems to be that the > very last call to usb_submit_urb() call blocks for over a minute. > > Dez 15 21:33:12 kronos kernel: peak_usb_ndo_start_xmit: submitting urb > Dez 15 21:33:12 kronos kernel: peak_usb_ndo_start_xmit: urb success > Dez 15 21:33:12 kronos kernel: peak_usb_ndo_start_xmit: submitting urb > Dez 15 21:41:59 kronos kernel: peak_usb_ndo_start_xmit: urb success <---- ?? > > Anybody out there who can help me tracking this down further? You can sniff the USB traffic with wireshark... https://wiki.wireshark.org/CaptureSetup/USB Marc -- Pengutronix e.K. | Marc Kleine-Budde | Embedded Linux | https://www.pengutronix.de | Vertretung West/Dortmund | Phone: +49-231-2826-924 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
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