lttng enable-channel -u --type splice hangs the root user-space consumer
(User belongs to
tracing group, root
lttng-sessiond is running)
$ lttng create t Session t created. Traces will be written in /home/daniel/lttng-traces/t-20130725-161359 $ lttng enable-channel ch0 -u --output splice Error: Channel ch0: Operation not supported (session t) Warning: Some command(s) went wrong $ lttng enable-channel ch1 -k --output mmap Error: Channel ch1: No kernel consumer detected (session t) Warning: Some command(s) went wrong $ lttng destroy t Session t destroyed $ sudo service lttng-sessiond restart
lttng-sessiond service had to be restarted as the root user-space
lttng-consumerd daemon was hung (as shown by the system monitor). You can also tell because
lttng enable-channel ch1 -k --output mmap works fine if not preceded by
lttng enable-channel ch0 -u --output splice.
Updated by Mathieu Desnoyers about 8 years ago
- Status changed from Confirmed to Feedback
Can you try against LTTng stable-2.2 up to date branches, and also against master branches (for lttng-ust, lttng-modules, and lttng-tools) ?
Please detail which commits (for each project) you test against in the bug report.
Updated by David Goulet about 8 years ago
- Status changed from Feedback to Invalid
Please make sure to update your branch to the git HEAD. If it can be reproduce, please provide the commit ID of lttng-tools and lttng-ust.
I'll flag this one invalid for now and we'll reopen it if any issues rise up! :)