Message ID | 20171020212046.577888-1-songliubraving@fb.com |
---|---|
Headers | show |
Series | add a set of tracepoints to tcp stack | expand |
CCing key audience of these patches. I am really sorry if I have spammed your inbox multiple times with the same set of patches. I have been struggling to get git-send-email sending email to netdev. The only solution I found is to be reduce CC list. Best Regards, Song > On Oct 20, 2017, at 2:20 PM, Song Liu <songliubraving@fb.com> wrote: > > Resending the patch set as there were something wrong with my email > server. > > These patches add the following tracepoints to tcp stack. > > tcp_send_reset > tcp_receive_reset > tcp_destroy_sock > tcp_set_state > > These tracepoints can be used to track TCP state changes. Such state > changes include but are not limited to: connection establish, > connection termination, tx and rx of RST, various retransmits. > > Currently, we use the following kprobes to trace these events: > > int kprobe__tcp_validate_incoming > int kprobe__tcp_send_active_reset > int kprobe__tcp_v4_send_reset > int kprobe__tcp_v6_send_reset > int kprobe__tcp_v4_destroy_sock > int kprobe__tcp_set_state > int kprobe__tcp_retransmit_skb > > These tracepoints will help us simplify this work. > > Thanks, > Song > > Song Liu (6): > tcp: add trace event class tcp_event_sk_skb > tcp: mark trace event arguments sk and skb as const > tcp: add tracepoint trace_tcp_send_reset > tcp: add tracepoint trace_tcp_receive_reset > tcp: add tracepoint trace_tcp_destroy_sock > tcp: add tracepoint trace_tcp_set_state() > > include/trace/events/tcp.h | 181 ++++++++++++++++++++++++++++++++++++++++++++- > net/ipv4/tcp.c | 4 + > net/ipv4/tcp_input.c | 3 + > net/ipv4/tcp_ipv4.c | 8 +- > net/ipv4/tcp_output.c | 5 ++ > net/ipv6/tcp_ipv6.c | 10 ++- > 6 files changed, 204 insertions(+), 7 deletions(-) > > -- > 2.9.5
From: Song Liu <songliubraving@fb.com> Date: Fri, 20 Oct 2017 14:20:40 -0700 > These patches add the following tracepoints to tcp stack. > > tcp_send_reset > tcp_receive_reset > tcp_destroy_sock > tcp_set_state Please fix this build error, it probably happens when IPV6 is built modular: ERROR: "__tracepoint_tcp_send_reset" [net/ipv6/ipv6.ko] undefined! scripts/Makefile.modpost:91: recipe for target '__modpost' failed Thanks.