[56235.522788] usb 1-1.4: USB disconnect, device number 9
[56241.096120] usb 1-1.4: new full-speed USB device number 10 using ehci-pci
[56241.214818] usb 1-1.4: New USB device found, idVendor=09fb, idProduct=6001
[56241.214820] usb 1-1.4: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[56241.214822] usb 1-1.4: Product: USB-Blaster
[56241.214823] usb 1-1.4: Manufacturer: Altera
[56241.214824] usb 1-1.4: SerialNumber: ARY3JO9D
[56676.885756] jtagd: segfault at 25ae000 ip 00007f96bf98f930 sp 00007ffce808f398 error 4 in libc-2.23.so[7f96bf8fb000+1c0000]
Referring to segfault error. I’m suspecting that you run Quartus software as a user, which means jtagd will also run as a user. Therefore, you must edit permission for the usb_device.
jtagd is part of the Quartus tools and is a daemon that provides the interface between the Altera tool accessing the JTAG chain and the USB driver.
Refer to link on how to fix USB driver permissions