Is there a known bug that causes the Sierra Wireless EM7455 of C1111-4PLTEEA to crash?
I've encountered multiple devices that needed a reboot because they could not reconnect with 4G.
When they crash, at least one of those messages is logged:
%IOSXE-3-PLATFORM: R0/0: kernel: xhci-hcd f2510000.usb3: ERROR Transfer event TRB DMA ptr not part of current TD ep_index 7 comp_code 1
%IOSXE-3-PLATFORM: R0/0: ngiolite: modem qmi fds failed to initialize
I suspect an issue with platform usb disable because so far, no device has crashed which does not have that statement. However, I'm uncertain because those crashes occur randomly, one a week or once a month.
C1111-4PLTEEA#sh usb-devices summary
USB Device: xHCI Host Controller
Bus: 04 Port: 00 Cnt: 00 Speed: 5000
Vendor: 1d6b ProdID: 0003 Rev: 4.04
Serial Number: f2510000.usb3
USB Device: Sierra Wireless EM7455 QualcommB.
Bus: 04 Port: 00 Cnt: 01 Speed: 5000
Vendor: 1199 ProdID: 9071 Rev: 0.06
Serial Number: LF92747302031029
USB Device: xHCI Host Controller
Bus: 03 Port: 00 Cnt: 00 Speed: 480
Vendor: 1d6b ProdID: 0002 Rev: 4.04
Serial Number: f2510000.usb3
USB Device: xHCI Host Controller
Bus: 02 Port: 00 Cnt: 00 Speed: 5000
Vendor: 1d6b ProdID: 0003 Rev: 4.04
Serial Number: f2500000.usb3
USB Device: xHCI Host Controller
Bus: 01 Port: 00 Cnt: 00 Speed: 480
Vendor: 1d6b ProdID: 0002 Rev: 4.04
Serial Number: f2500000.usb3
C1111-4PLTEEA#
We use: 16.09.02, 16.09.03, 16.09.04 (ARMV8EB_LINUX_IOSD-UNIVERSALK9_IAS-M)
