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boundary="===============3542132784782597755==" Errors-To: lttng-dev-bounces@lists.lttng.org Sender: "lttng-dev" --===============3542132784782597755== Content-Language: en-US Content-Type: multipart/signed; micalg="pgp-sha512"; protocol="application/pgp-signature"; boundary="=-pn+pZpiWTVzPSZbTBHti" --=-pn+pZpiWTVzPSZbTBHti Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Hi all, I am investigating an issue that takes some time to reproduce. Finding the right point in the logs is therefore very difficult. Since I can detect when the issue happens in the kernel I would like to be able to emit an event into the trace that I can then search for in Trace Compass of through Babeltrace. So basically a kind of flag that says "look here". That way I can jump right to the problem and then look backwards from there to see what happened just before. I have looked at the docs for how to add a trace point, but it seems pretty complicated. I may have missed something though, so I wonder if there is a trivial way to add such a flag to the log? Up to now I just put a printk() in which helps, but would still be nicer to have something directly in the log. If there isn't such a thing already, then would it be a reasonable enhancement request to be able to add such a feature? Thanks Rich --=-pn+pZpiWTVzPSZbTBHti Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part Content-Transfer-Encoding: 7bit -----BEGIN PGP SIGNATURE----- iQEzBAABCgAdFiEErzjP234FF8wy07NdNk3LIt9/FNUFAmT6/c4ACgkQNk3LIt9/ FNWW1gf8DObQzo4633FGOXJ+NcasoYDVXCUKPoJj5lDCNITQf3V3MZekwBn0T85q 6ZBQJBLvINCf9X1DrIl9ZKS/3teQuqkibV1aztwZV6qpuH/Wz6gLiHqGBD91J5fc xgMTdEnNyyz4mH8Nqpxe7/AA9JZZtyXyeqDR3AWw+RgMxSJgFu9mfMcqbvA+X0Gx rJ2/ZMUMYslseNn58vdQT6+wg7knUx5DdcgIyzoAdaXHBXDw3Twd5RCZ2rNkPZO3 tjv916AuVQrqMRc5kCRdsLDpLrg1CdbqK7adg97/MiIx3bPAlhZLtzRD2oXzQL/B oT/99O52zp7cD7+7eS1/XvmoHvrb9g== =UCbi -----END PGP SIGNATURE----- --=-pn+pZpiWTVzPSZbTBHti-- --===============3542132784782597755== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ lttng-dev mailing list lttng-dev@lists.lttng.org https://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev --===============3542132784782597755==--