[tracecompass-dev] R: R: R: Question about VM tracing with LTTng and Vir

[tracecompass developer discussions <tracecompass-dev@xxxxxxxxxxx>]

Hi,

my bad, I only uninstalled the packages with zypper because I didn't remember that one time I also installed it  from source code.

Thank you,

Emilio Bruno

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Da: tracecompass-dev <tracecompass-dev-bounces@xxxxxxxxxxx> per conto di tracecompass developer discussions <tracecompass-dev@xxxxxxxxxxx>
Inviato: giovedì 25 febbraio 2021 19:33
A: tracecompass-dev@xxxxxxxxxxx <tracecompass-dev@xxxxxxxxxxx>
Oggetto: Re: [tracecompass-dev] R: R: Question about VM tracing with LTTng and Virtual Machine Analysis inside TraceCompass

 

Hi,

After consulting the lttng community, they suggested the error you have is due to the lttng-ust master libraries being on the system, as opposed to the ones for stable-2.12. And indeed I can reproduce the output with lttng-ust master.

Make sure you compile the statedump-notifier-2.12 branch of lttng-ust and that it is the only one installed on your system. `ldconfig -p | grep liblttng` could show you the path to the libraries that are installed.

Cheers,

Geneviève

On 2021-02-25 9:44 a.m., tracecompass developer discussions wrote:

Hi

1- Did you first succeed in compiling the lttng upstream `stable-2.12` branches in both projects? to confirm the errors really come from the branch

Yes, both the projects do compile.

2- Did you run ./bootstrap && ./configure in lttng-tools first? It adds new dependencies to udev, though that does not seem to be the problem here.

Those files are only in lttng-tools

3- You compiled lttng-ust before the other 2?

Yes, I did

4- For lttng-modules, I think you have to have compiled and installed the lttng-tools first

I tryed, but nothing changed

5- If you previously installed the lttng-* packages from your distro's package manager, be sure to remove them, as there may be clashes in libraries.

Thanks to this suggestion I discovered that I haven't deleted all the libraries before; this resolved the problems encountered and the lttng-modules installation succeeded, but for lttng-tools we have new errors https://pastebin.com/LD35RrHV

Thank you,

Emilio Bruno

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