Dropwatch

[Justin McCann]

I hadn't seen this mentioned here, so maybe I'm not the only one who
didn't know about it....

I just stumbled across Neil Horman's dropwatch [1], which uses Netlink
to report which parts of the kernel are dropping packets. It looks
like the patches made it into the kernel in 2009 [2], and the utility
is in RHEL 5.6 [3], maybe earlier. The version I tried just reports
the kernel addresses and doesn't look up the function names directly.

Enjoy,
    Justin



[1] https://fedorahosted.org/dropwatch/
[2] http://kerneltrap.org/mailarchive/linux-netdev/2009/3/3/5038664/thread
[3] http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/5/html/5.6_Release_Notes/ar01s03.html