From: Evan Galea via lttng-dev <lttng-dev@lists.lttng.org>
To: lttng-dev@lists.lttng.org
Subject: [lttng-dev] unable to add callstack-user context
Date: Fri, 9 Jul 2021 04:30:48 -0400 [thread overview]
Message-ID: <CAA+-46q3vLWvu6WNueSybHZ-7hE=S=eZo1WWXDDq7YOa7hyjWg@mail.gmail.com> (raw)
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Hi there, I'm a little new to lttng and tracing in general. I am using a
Java Userspace agent, which is working well, but I am having trouble adding
callstack context to my tracing channels. I'm not sure if it's relevant but
running 'lttng add-context --list" shows callstack-user in the list.
the commands I input are:
lttng create
lttng enable-channel --userspace mychannel
lttng enable-event --userspace --all --channel mychannel
lttng add-context --userspace --channel mychannel --type callstack-user
>Error: callstack-user: UST invalid context
When I run the following command instead:
lttng add-context --userspace --channel mychannel --type vpid
I am able to get it to work and I see vpid appear in my traces. Are there
any other things I need to set up first to be able to use it?
also, are there any commands that can list the per-domain contexts
available?
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next reply other threads:[~2021-07-09 8:31 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-09 8:30 Evan Galea via lttng-dev [this message]
2021-07-09 13:54 ` [lttng-dev] unable to add callstack-user context Mathieu Desnoyers via lttng-dev
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