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C1111-4PLTEEA - 4G connection lost - f2510000.usb3 - modem qmi fds failed

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)

1 REPLY 1
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Hello!

 

I was facing the same issue and TAC told me, however this was falsely documented in the bug entry, that this issue was fixed in IOSXE 16.10.2 onwards.

 

BR

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