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Bug #636

closed

[PPA] Enabling some kernel events fails with invalid ioctl with lttng 2.3 stable

Added by Francis Giraldeau over 10 years ago. Updated over 10 years ago.

Status:
Resolved
Priority:
High
Assignee:
-
Target version:
LTTng - 2.3
Start date:
09/18/2013
Due date:
% Done:

0%

Estimated time:

Description

When trying to enable a kernel event, the following error is obtained:

Client side:

$ lttng create 
Session auto-20130918-123048 created.
Traces will be written in /home/francis/lttng-traces/auto-20130918-123048
$ lttng enable-event -k mm_page_alloc
Error: Event mm_page_alloc: Enable kernel event failed (channel channel0, session auto-20130918-123048)
Warning: Some command(s) went wrong

On lttng-sessiond side:

PERROR [4059/4160]: create event ioctl: Invalid argument (in kernel_create_event() at kernel.c:205)

Installed with packages from stable Ubuntu PPA:

$ dpkg -l | grep lttng
ii  liblttng-ctl0:amd64   2.3.x+stable-0+bzr1839+pack7+201309141748~ubuntu13.04.1
ii  liblttng-ust-dev      2.3.x+stable-0+bzr1641+pack41+201309091817~ubuntu13.04.1
ii  liblttng-ust0:amd64   2.3.x+stable-0+bzr1641+pack41+201309091817~ubuntu13.04.1
ii  lttng-modules-dkms    2.3.x+stable-0+bzr537+pack15+201309162039~ubuntu13.04.1
ii  lttng-tools           2.3.x+stable-0+bzr1839+pack7+201309141748~ubuntu13.04.1

$ uname -a
Linux dyn37 3.8.0-30-generic #44-Ubuntu SMP Thu Aug 22 20:52:24 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux

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