18.06 RC1 Issue Realtek Ethernet

Installing and Using OpenWrt
1

Hi,

I'm running lede stable version 17.01.4 in my MiniPC Fanless x64

Details:

root@LEDE:/# lspci
00:00.0 Host bridge: Intel Corporation Atom Processor Z36xxx/Z37xxx Series SoC Transaction Register (rev 0e)
00:02.0 VGA compatible controller: Intel Corporation Atom Processor Z36xxx/Z37xxx Series Graphics & Display (rev 0e)
00:13.0 SATA controller: Intel Corporation Atom Processor E3800 Series SATA AHCI Controller (rev 0e)
00:14.0 USB controller: Intel Corporation Atom Processor Z36xxx/Z37xxx, Celeron N2000 Series USB xHCI (rev 0e)
00:1a.0 Encryption controller: Intel Corporation Atom Processor Z36xxx/Z37xxx Series Trusted Execution Engine (rev 0e)
00:1b.0 Audio device: Intel Corporation Atom Processor Z36xxx/Z37xxx Series High Definition Audio Controller (rev 0e)
00:1c.0 PCI bridge: Intel Corporation Atom Processor E3800 Series PCI Express Root Port 1 (rev 0e)
00:1c.1 PCI bridge: Intel Corporation Atom Processor E3800 Series PCI Express Root Port 2 (rev 0e)
00:1c.2 PCI bridge: Intel Corporation Atom Processor E3800 Series PCI Express Root Port 3 (rev 0e)
00:1c.3 PCI bridge: Intel Corporation Atom Processor E3800 Series PCI Express Root Port 4 (rev 0e)
00:1d.0 USB controller: Intel Corporation Atom Processor Z36xxx/Z37xxx Series USB EHCI (rev 0e)
00:1f.0 ISA bridge: Intel Corporation Atom Processor Z36xxx/Z37xxx Series Power Control Unit (rev 0e)
00:1f.3 SMBus: Intel Corporation Atom Processor E3800 Series SMBus Controller (rev 0e)
02:00.0 Network controller: Broadcom Limited BCM4313 802.11bgn Wireless Network Adapter (rev 01)
03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 06)
04:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 06)
root@LEDE:/# uname -a
Linux LEDE 4.4.92 #0 SMP Tue Oct 17 17:46:20 2017 x86_64 GNU/Linux

Everything is working like I charm.

Today, I tested version 18.06 RC1 found here https://downloads.openwrt.org/releases/18.06.0-rc1/targets/

I realized my internet speed was from 600 Mb, to 50 Mb., more than 550 Mb. less. After resetting the router/modem.... I checked again, and the result was the same. Tested hours later, and the same result.
I went back to version 17.01.4 and speed was 600 Mb. again.

Someone with the same issue? It's a bug?

Thanks everyone!!!

2

It might be the same upstream kernel related bug as discussed in R7800 exploration thread:

for ipq806x/R7800 it looks like 4.14.44 kernel worked ok but the bump to 4.14.48 broke things, and the 4.14.50 currently in 18.06 is still broken, but 4.14.51 will fix things. That .51 will likely hit the 18.06 rc2 or final.

You might test the .51 patch from mailing list:
https://patchwork.ozlabs.org/patch/932599/

3

Thanks @hnyman, I'll wait for RC2!!!