Re: kern/59185: panic over KASSERTMSG(dev->ud_ifaces == NULL) on Dell Latitude 7490

[Emile `iMil' Heitor <imil%home.imil.net@localhost>]

On Tue, 18 Mar 2025, Michael van Elst wrote:

> My guess, it's uhub1 at usb1, and then:

Indeed

$ doas usbctl -f /dev/usb1 -a 5
DEVICE addr 5
DEVICE descriptor:
bLength=18 bDescriptorType=device(1) bcdUSB=1.10 bDeviceClass=0 bDeviceSubClass=0
bDeviceProtocol=0 bMaxPacketSize=64 idVendor=0x0a5c idProduct=0x5834 bcdDevice=101
iManufacturer=1(Broadcom Corp) iProduct=2(5880) iSerialNumber=3(0123456789ABCD) bNumConfigurations=1

CONFIGURATION descriptor 0:
bLength=9 bDescriptorType=config(2) wTotalLength=269 bNumInterface=4
bConfigurationValue=0 iConfiguration=0() bmAttributes=e0 bMaxPower=100 mA

INTERFACE descriptor 0:
bLength=9 bDescriptorType=interface(4) bInterfaceNumber=0 bAlternateSetting=0
bNumEndpoints=3 bInterfaceClass=254 bInterfaceSubClass=0
bInterfaceProtocol=0 iInterface=4(Broadcom USH w/touch sensor)

Unknown descriptor (class 254/0):
bLength=16 bDescriptorType=37 ...

ENDPOINT descriptor:
bLength=7 bDescriptorType=endpoint(5) bEndpointAddress=1-in
bmAttributes=bulk wMaxPacketSize=64 bInterval=0

ENDPOINT descriptor:
bLength=7 bDescriptorType=endpoint(5) bEndpointAddress=1-out
bmAttributes=bulk wMaxPacketSize=64 bInterval=0

ENDPOINT descriptor:
bLength=7 bDescriptorType=endpoint(5) bEndpointAddress=5-in
bmAttributes=interrupt wMaxPacketSize=16 bInterval=1

INTERFACE descriptor 1:
bLength=9 bDescriptorType=interface(4) bInterfaceNumber=1 bAlternateSetting=0
bNumEndpoints=3 bInterfaceClass=11 bInterfaceSubClass=0
bInterfaceProtocol=0 iInterface=5(Contacted SmartCard)

Unknown descriptor (class 11/0):
bLength=54 bDescriptorType=33 ...

ENDPOINT descriptor:
bLength=7 bDescriptorType=endpoint(5) bEndpointAddress=2-in
bmAttributes=bulk wMaxPacketSize=64 bInterval=0

ENDPOINT descriptor:
bLength=7 bDescriptorType=endpoint(5) bEndpointAddress=2-out
bmAttributes=bulk wMaxPacketSize=64 bInterval=0

ENDPOINT descriptor:
bLength=7 bDescriptorType=endpoint(5) bEndpointAddress=6-in
bmAttributes=interrupt wMaxPacketSize=16 bInterval=1

INTERFACE descriptor 2:
bLength=9 bDescriptorType=interface(4) bInterfaceNumber=2 bAlternateSetting=0
bNumEndpoints=3 bInterfaceClass=11 bInterfaceSubClass=0
bInterfaceProtocol=0 iInterface=6(Contactless SmartCard)

Unknown descriptor (class 11/0):
bLength=54 bDescriptorType=33 ...

ENDPOINT descriptor:
bLength=7 bDescriptorType=endpoint(5) bEndpointAddress=3-in
bmAttributes=bulk wMaxPacketSize=64 bInterval=0

ENDPOINT descriptor:
bLength=7 bDescriptorType=endpoint(5) bEndpointAddress=3-out
bmAttributes=bulk wMaxPacketSize=64 bInterval=0

ENDPOINT descriptor:
bLength=7 bDescriptorType=endpoint(5) bEndpointAddress=7-in
bmAttributes=interrupt wMaxPacketSize=16 bInterval=1

INTERFACE descriptor 3:
bLength=9 bDescriptorType=interface(4) bInterfaceNumber=3 bAlternateSetting=0
bNumEndpoints=3 bInterfaceClass=255 bInterfaceSubClass=0
bInterfaceProtocol=0 iInterface=8(Broadcom NFP)

Unknown descriptor (class 255/0):
bLength=16 bDescriptorType=38 ...

ENDPOINT descriptor:
bLength=7 bDescriptorType=endpoint(5) bEndpointAddress=4-in
bmAttributes=bulk wMaxPacketSize=64 bInterval=0

ENDPOINT descriptor:
bLength=7 bDescriptorType=endpoint(5) bEndpointAddress=4-out
bmAttributes=bulk wMaxPacketSize=64 bInterval=0

ENDPOINT descriptor:
bLength=7 bDescriptorType=endpoint(5) bEndpointAddress=8-in
bmAttributes=interrupt wMaxPacketSize=16 bInterval=1

current configuration 0

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Emile `iMil' Heitor <imil@{home.imil.net,NetBSD.org}> | https://imil.net