Adding ltng version:
lttng --version
lttng (LTTng Trace Control) 2.10.2 - KeKriek

From: Aleksander Twardowski
Sent: poniedziałek, 2 września 2019 14:02
To: lttng-dev@lists.lttng.org
Subject: Problem with vpid in lttng output

Hi,

I do not know if I am addressing problem correctly but let’s try 😊
I have a problem, occurring very rarely, with vpid in lttng output.
Sometimes, I do not know why, vpid is not visible.

Proper lttng log:
[14:08:35.156333670] (+0.000010724) selilsx1795 com_ericsson_csim_up:ERROR: { cpu_id = 0 }, { vpid = 16826 }, { src = "/home/ealetwa/repos/bpu-up/src/Rpup.cpp:125:", obj = "GENERAL", msg = "Failed to initialize SDS connection" }

Problematic lttng log:
“[14:08:35.156333670] (+0.000010724) selilsx1795 com_ericsson_csim_up:ERROR: { cpu_id = 0 }, { src = "/home/ealetwa/repos/bpu-up/src/Rpup.cpp:125:", obj = "GENERAL", msg = "Failed to initialize SDS connection" }”

If you can help me, tell me in which cases this problem occurring that would be great.
I checked https://github.com/lttng/lttng-ust but I did not found any clue.

BR,
Aleksander