[18.06.4] speed fix for BT HomeHub 5a

It seems commit 916e33fa1e14b97daf8c9bf07a1b36f9767db679 degraded the wan-lan speed for the BT HomeHub 5a (HH v5a)

openwrt ebilan forum member bill did the following tests

iperf3 results:

20180228 Openwrt r6331-916e33f netifd update to the latest version, rewrite RPSXPS
D 80.9 Mbps, U 93.4 Mbps

the file below is a 18.06.1 with netifd reverted to 810659a

bill's results:

iperf3 results:

OpenWrt 18.06.1 r7258-5eb055306f with LuCI, by 'maurer'
eth D 142 Mbps, U 143 Mbps
N/40MHz(300Mbps) D 70 Mbps, U 91 Mbps

OpenWrt 18.06.2  with LuCI, by 'maurer'
eth D 88-131 Mbits/sec,  U 115-145 Mbits/sec

18.06.4 - Maurer edition - fixed
Download  128 Mbits/sec, Upload 136 Mbits/sec

compared to original stable release:

iperf3 results:

OpenWrt 18.06.1 r7258-5eb055306f

(Unmodified)
eth D 79.3 Mbps, U 74.3 Mbps
N/40MHz(300Mbps) D 71.8 Mbps, U 81.4? Mbps 

for more details see: https://openwrt.ebilan.co.uk/viewtopic.php?f=7&t=1105

the issue is tracked in:
https://bugs.openwrt.org/index.php?do=details&task_id=1852

my 18.06.1 build with speed fix for BT HH 5a:
sha256: 26704f045fd710e199ef03578b3f60fa02594ac90f07725af6c1bfb38c1f2d64
https://anonfile.com/lbn8G1i9be
mirror: https://bit.ly/2XXGtGI

my 18.06.2 build with speed fix for BT HH 5a:
sha256: 410f4d2c9ebd104d031886cde0c70499901c7646d1d3167fb014812671ae4a3e
https://anonfile.com/q3b9iau8b5
mirror: https://bit.ly/2XRA5Ay

my 18.06.4 build with speed fix for BT HH 5a:
sha256: 931067bac645bcc6018789cf1be66dcf09d17c0d7958121a56c9c03f9c57e687
https://anonfile.com/JeV2mey5n5
mirror: https://bit.ly/2xypJqv

The only difference from a official openwrt build is a patched netifd
source code here: https://github.com/maurerr/netifd

Thanks to post your results below

2 Likes

Do you think the problem is also affecting similar Lantiq device, like TP-Link TD-W8970 ?

it should affect all the multi core Lantiq devices

@maurer - Do you know if this has been fixed in the 18.06.2 (r7676) what was released january 2019 If so could you provide a iperf3 speedtest compared to 18.06.1 (r7258)
Thanks :slight_smile:

as you can see in the bug above there is no mention of a fix.
i hope i'll have time next week to compile 18.06.2 with the fix

LE - build is in the 1st post

Thanks very much for these files but I'm getting errors with your 18.06.2 image :frowning:

Invalid sysupgrade file.
Image check 'platform_check_image' failed.

please go to https://openwrt.ebilan.co.uk/viewtopic.php?f=7&t=1105 and report this

added 18.06.4 build tested by bill
also mirrored the files on my dropbox

Your anonfile links are getting flagged btw for HTML/ScrInject.B trojan you might want to check.
However your mirror links are working fine, i take it is a simple sysupgrade run for these files?

1 Like

Thanks for the heads up. I'll reupload the flagged files when I'll have some spare time.
Yes the files are simple sysupgrades

UPDATE:
please see virustotal analysis below - NO VIRUS DETECTED !
18.06.1
18.06.2
18.06.4