[Bug 258057] muge(4) crashes with large tx batches

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=258057

--- Comment #28 from Dan Kotowski <dan.kotowski@a9development.com> ---
usbconfig -d 1.9 dump_curr_config_desc:
https://gist.github.com/7c2b64defe008cda815d8b4ac2158136

Also worth noting is that the ACTUAL controller in the SOC is a Synopsys
DesignWare Core SuperSpeed:
https://www.kernel.org/doc/html/latest/driver-api/usb/dwc3.html

Sure enough the 2 Known Limitations are OUT Transfer Size and TRB Ring Size.
I'm not sure if that's necessarily related, but the device only seems to fail
under large TX, not RX.

A few other notes:

1. ugen0.1 refuses to come up to superspeed, even under Linux - this may just
be an issue with early revision boards. I intend to avoid using this bus
entirely for now.

2. I was able to get the bus and devices up to superspeed hanging off of
ugen1.1 under Linux _sometimes_ but only once I disabled powersaving on
everything.

-- 
You are receiving this mail because:
You are the assignee for the bug.