* netstat not tracking all packets
@ 2004-07-15 15:17 Chris Friesen
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From: Chris Friesen @ 2004-07-15 15:17 UTC (permalink / raw)
To: netdev
We just ran into an issue where incoming IP packets were being dropped due to
socket buffer overflow, but there were no statistics showing it. Increasing the
buffer size made the problems go away, but it was frustrating to not have
accurate statistics.
After a bit of digging, I found the following path:
raw_v4_input
skb_clone
raw_rcv(sk, clone)
raw_rcv_skb
If the socket rx buffer is full raw_rcv_skb then drops the packet without
incrementing any counters. There's a FIXME comment in there that looks like its
been there for two years and counting.
Anyone have a fix for this, or know of other areas where the counters are not
accurate?
Chris
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