- Status Unconfirmed
- Percent Complete
- Task Type Bug Report
- Category Kernel
- Assigned To No-one
- Operating System All
- Severity Critical
- Priority Very Low
- Reported Version openwrt-19.07
- Due in Version Undecided
-
Due Date
Undecided
- Private
FS#3571 - Kernel Drops Packets and causes heavy re-transmission
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
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.