We have an embedded T1042 NXP CDC ethernet gadget which seems to completely freeze when an usb0 I/F is established and one do 1 of two things: 1) reboot the connected Linux laptop -> CDC gadget appears to enter complete system freeze. 2) on laptop, ifconfig usb0 down; rmmod cdc_ether -> CDC gaget freezes I cannot finns and OOPS or other trace in console or syslog. I could really use som ideas here. Linux kernel 4.19.108 (4.19.76 has the same issue) Jocke