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FS#3571 - Kernel Drops Packets and causes heavy re-transmission #8606

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openwrt-bot opened this issue Jan 11, 2021 · 0 comments
Open

FS#3571 - Kernel Drops Packets and causes heavy re-transmission #8606

openwrt-bot opened this issue Jan 11, 2021 · 0 comments
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flyspray kernel pull request/issue with Linux kernel related changes release/19.07 pull request/issue targeted (also) for OpenWrt 19.07 release

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cliffordanup:

Supply the following if possible:

  • Device problem occurs on - Netgear R6220
  • Software versions of OpenWrt/LEDE release, packages, etc - OpenWrt 19.07.04 & 19.07.05, mt7621
  • Steps to reproduce - No Specific steps to reproduce the problem. Problem automatically starts occurring after a few weeks of usage. Upon running tcpdump on the bridged lan interface where majority of my clients are connected, many packets were dropped by the Kernel which caused many re-transmissions.

root@OpenWrt:# tcpdump -i br-lan -w /mnt/sda1/tcpdump/tcpdump.pcap
tcpdump: listening on br-lan, link-type EN10MB (Ethernet), capture size 262144 bytes
^C24604 packets captured
39397 packets received by filter
14785 packets dropped by kernel
root@OpenWrt:
#

During the tcpdump packet capture, all I tried doing was browse various web pages from one client and do a speedtest from another client. The web pages would either never load and load after several re-attempts. Speedtest would fail to complete and error out.

@aparcar aparcar added release/19.07 pull request/issue targeted (also) for OpenWrt 19.07 release kernel pull request/issue with Linux kernel related changes labels Feb 22, 2022
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Labels
flyspray kernel pull request/issue with Linux kernel related changes release/19.07 pull request/issue targeted (also) for OpenWrt 19.07 release
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