Hi all,
I am trying to instrument the kernel to obtain some timing measurements within the
Netfilter hooks. I used the "do_gettimeofday" function to measure time of entry and
time of exit in the "ip_conntrack_in" function. The kernel compiles clean but it
doesn't boot. I get the
following error:
-ran out of input data
I have used the same method to collect timing from "ip_rcv, inet_sendmsg and
inet_recvmsg" functions and they all work fine.
When I remove the do_gettimeofday instrumentation from conntrack, all's well and hunky
dory.
Can someone tell me why would I be encountering this strange behavior with conntrack.
Is there something else other than do_gettimeofday that I can use.
Thanks,
Sowmya.