Chrome OS also can't support RTL8156 until this is fixed. Every kernel
version Chrome OS uses spams /var/log/syslog with ~30 messages/second
(~200MB/day or ~1GB/week). We can not use the Realtek "proprietary"
(though open source) driver.
Realtek needs to look at this and I've contacted Realtek
Well, use the Realtek r8156 driver until they made it upstream.
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Title:
cdc_ncm floods syslog unneccessarily
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Is there a way for a normal user to fix the log spamming? I bought a
RTL8156 based USB adapter but it's making the journal unusable. It is
adding 30+ kernel messages per second and consuming pointless io / cpu
cycles (system-journald, i.e. 5% permanent cpu usage on my Pi4).
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Apols but looking you guys are knowledgeable with cdc_ncm
With the RTL8156 the rk3399 struggles slighlty with iperf3 @ 2.5gb but
almost gets there.
Needs affinity to a big core though
[root@rockpi4 ~]# echo 5 > /proc/irq/221/smp_affinity_list
[root@rockpi4 ~]# iperf3 -c 192.168.1.9
Connecting
I was mistaken, the TRENDnet TUC-ET2G is actually based on RTL8156 while
the TUC-ET5G is effectively based on Aquantia IC. I made wrong
assumption since Aquantia also has a USB3.0 to ETH 2.5Gbe bridge.
Anyhow, so I tested with RTL8156 driver you linked (which actually is
part of RTL8152 driver)
This is because the upstream driver doesn't support Realtek 8156 (yet).
Please ask Realtek to upstream their driver, and use [1] for the
interim.
[1] https://www.realtek.com/en/component/zoo/category/network-interface-
controllers-10-100-1000m-gigabit-ethernet-usb-3-0-software
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Not sure if it could be related to this old bug :
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1626371
Which has been fixed through this commit :
https://lists.ubuntu.com/archives/kernel-team/2016-December/081565.html
BTW the TRENDnet TUC-ET2G based on Aquantia AQtion AQC112U
Same exact issue with TRENDnet TUC-ET2G (USB-C 3.1 to 2.5GBASE-T
Ethernet Adapter) on Ubuntu 18.04.2 with kernel 4.18.0-22-generic.
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Title:
With 5.2.0-050200rc5-generic I'm getting the same behavior. Apport
follows.
** Description changed:
Upon plugging in a USB adapter for NBase-T ethernet with an Realtek chip
RTL8156 the kernel module cdc_ncm starts flooding /var/log/syslog with
unneccessary status info.
The status
Please test latest mainline kernel:
https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.2-rc5/
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Title:
cdc_ncm floods syslog unneccessarily
To
apport information
** Tags added: apport-collected
** Description changed:
Upon plugging in a USB adapter for NBase-T ethernet with an Realtek chip
RTL8156 the kernel module cdc_ncm starts flooding /var/log/syslog with
unneccessary status info.
The status lines either say that
** Tags added: disco
** Package changed: ubuntu => linux (Ubuntu)
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Title:
cdc_ncm floods syslog unneccessarily
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