On Tue, Apr 12, 2022 at 05:26:41PM +0200, Amaury Denoyelle wrote: > On Tue, Apr 12, 2022 at 08:01:59AM -0600, Shawn Heisey wrote: > > On 4/12/22 02:22, Amaury Denoyelle wrote: > > > then you can display the traces with the following command : > > > $ show events buf0 > > > > For the h3 layer, the trace mechanism is not currently implemented. You > > > should instead recompile your haproxy binary with the DEBUG options : > > > -DDEBUG_H3 -DDEBUG_QPACK > > > and watch for the stderr output for your process. > > I got some traces. URL below for accessing it. There's a LOT of data. > > https://paste.elyograg.org/view/8678c875 > > I didn't do the H3 debug yet, if you still need it after looking at the > > traces, let me know. You'll also need to tell me how to make those debugs > > active when I build haproxy. > We analyzed the output of the traces but there is nothing of particular > interest here. What may be useful is to activate the H3 traces. > However, I notice that the -dev5 does not compile with H3 traces > activated. So first, you have to apply the attached patch before > recompiling. To do this, save the attachment and execute the following > command in your source folder : > $ patch -p1 < 0001-BUG-MINOR-h3-fix-build-with-DEBUG_H3.patch > Alternatively, you can also use the latest master with contains the > mentionned patch. However, I think it's safer to stay on the -dev5 tag > for the moment. > Once the patch is applied, recompile your haproxy binary with DEBUG_H3 > and DEBUG_QPACK flags. Here is a make example, complete it with your > usual set of flags : > $ make TARGET=linux-glibc USE_QUIC=1 DEBUG="-DDEBUG_H3 -DDEBUG_QPACK" ... > You can now restart your process and watch the stderr output and report > it to us. > Again, thank you very much for your help,
Hi again, After much analysis of the code, it may be useful to have a run with the stream traces as well : $ trace stream sink buf0; trace stream level developer; trace stream verbosity clean; trace stream start now You can also provide us your haproxy config file, just remove any sensitive info if you have any. Thanks, -- Amaury Denoyelle
