Renesas / NEC - µPD720202 needs XHCI_TRUST_TX_LENGTH quirk? Logitech C920 Webcam/Zoneminder/Startech
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Confirmed
|
Medium
|
Unassigned |
Bug Description
Building zoneminder server. I think I stumbled on a kernel bug.
The suggestion is that the popular Renesas / NEC - µPD720202 may need "quirk" in the kernel.
Wiped the drive.
Loaded 17.04 Server
Now getting 100's of messages in DMESG complaining of thousands of errors:
[96415.044917] handle_tx_event: 516 callbacks suppressed
[96415.044924] xhci_hcd 0000:0c:00.0: WARN Successful completion on short TX: needs XHCI_TRUST_
Messages suggest "quirk" is the solution.
a)Researched usb 3.0 "quirk'
b)Discovered it's really a "thing"
c)Couldn't find recipe for patching kernel for NEC/Renasas "quirk" fix.
[EDIT]: Note C920 webcam is USB 2.0.
Note DMESG errors disappear when cam is plug into motherboard USB 2.0 ports.
Anecdotes suggest Nec/Renasas firmware is to blame.
a) Kernel indicates 2024 firmaware
b) Startech website has 2026 firmware.
c) SIDEBAR: WindowCentric GUI instructions do not translate between ASCII and HEX. So if your Startech is on channels 9, 10, 11, and 12 from perspective of Windows, you must translate into 09, 0A, 0B, and 0C when editing runfile for effective firmware update of all 4 controllers. Yes, for the 4 channel controller, count them: 4 update iterations.
d) Firmware updated.
Rebooted with new Startech/
SAME OLD PLETHORA OF ERRORS
I give up.
It may well be worth noting that there are no errors from DMESG until some seconds after the first webcam is attached to the Startech, while zoneminder
is running.
I think the file attached represents DMESG immediately before the errors start going nuts. My theory is that ZM does lazy polls on missing cams but once it gets a hold of the cam and sucking data the quirk bug surfaces.
ProblemType: Bug
DistroRelease: Ubuntu 17.04,17.10,18.04
Package: linux-image-
ProcVersionSign
Uname: Linux 4.10.0-32-generic x86_64
ApportVersion: 2.20.4-0ubuntu4.5
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/
/dev/snd/
/dev/snd/
/dev/snd/
Date: Sun Aug 13 16:48:41 2017
MachineType: Supermicro X9SRE/X9SRE-
ProcEnviron:
LANGUAGE=en_US
TERM=xterm-
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB:
0 mgadrmfb
1 nouveaufb
ProcKernelCmdLine: BOOT_IMAGE=
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
RelatedPackageV
linux-
linux-
linux-firmware 1.164.1
RfKill:
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 08/31/2015
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 3.2a
dmi.board.
dmi.board.name: X9SRE/X9SRE-
dmi.board.vendor: Supermicro
dmi.board.version: 0123456789
dmi.chassis.
dmi.chassis.type: 17
dmi.chassis.vendor: Supermicro
dmi.chassis.
dmi.modalias: dmi:bvnAmerican
dmi.product.name: X9SRE/X9SRE-
dmi.product.
dmi.sys.vendor: Supermicro
tags: | added: kernel-bug-exists-upstream |
Changed in linux (Ubuntu): | |
status: | Incomplete → Confirmed |
summary: |
- Nec/Renasas 27xxx2 May also need Quirk in 17.04, no problem in 16.04? - Logitech C920 Webcam/Zoneminder/Startech + Renesas / NEC - µPD720202 May also need Quirk in 17.04, no problem in + 16.04? Logitech C920 Webcam/Zoneminder/Startech |
description: | updated |
summary: |
- Renesas / NEC - µPD720202 May also need Quirk in 17.04, no problem in - 16.04? Logitech C920 Webcam/Zoneminder/Startech + Renesas / NEC - µPD720202 needs XHCI_TRUST_TX_LENGTH quirk? Logitech + C920 Webcam/Zoneminder/Startech |
description: | updated |
tags: | added: cscc |
This change was made by a bot.