Description of problem:
since upgrading to fedora 26, the tx_dropped counter as reported by ethtool is extremely high (higher than pythons sys.maxint, which I noticed as our metric collector can't handle values higher than that.
ifconfig reports a value of 0 for dropped:
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet <IP> netmask 255.255.255.192 broadcast <broadcast>
ether <MAC> txqueuelen 1000 (Ethernet)
RX packets 9445 bytes 3157060 (3.0 MiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 9715 bytes 2886494 (2.7 MiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
device interrupt 20 memory 0xef400000-ef420000
Version-Release number of selected component (if applicable):
ethtool 4.11-1 and 4.8
e1000e version 3.2.6-k, firmware 0.13-4
Reset your interface counters, then check your tx_dropped counter
Steps to Reproduce:
1. ethtool -S eth0 | grep tx_dropped
2. ifdown eth0
2. modprobe -r e1000e
3. modprobe e1000e
4. ifup eth0
5. ethtool -S eth0 | grep tx_dropped
Not sure if it's ethtool or the e1000e driver that's at fault here, ifconfig seems to report the correct value which implies it's ethtool
Please feel free to smack me down if I'm interpreting any of this incorrectly!
Thanks in advance,
It seems some other counters are also incorrect:
Upgrading my e1000e driver to 188.8.131.52-NAPI has fixed the problem
Is this driver update part of the Linux kernel as shipped with Fedora?
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