Hi.
Thank's Jérémie!
my account type is Administrator.
sudo lttng list -k works good!
how can I define a "tracing"group , so I no longer need the sudo command?
another problem:
i have add mycustomevents in the lttng_module like
http://lists.lttng.org/pipermail/lttng-dev/2013-October/021540.html
but after
$ make
$ sudo make modules_install
$ sudo depmod -a
and
$ sudo lttng list -k
my lttng-probe-mycustomevents.ko is now in
/lib/modules/3.11.0-12-generic/extra/probes
but i can't find my new event in the list!
Regards,
Klaus
Am 22.11.2013 17:12, schrieb Jérémie Galarneau:
On Fri, Nov 22, 2013 at 5:54 AM, Klaus Dannecker <[email protected]> wrote:
Am 21.11.2013 18:41, schrieb Jérémie Galarneau:
On Thu, Nov 21, 2013 at 11:42 AM, Klaus Dannecker
<[email protected]> wrote:
Am 21.11.2013 16:49, schrieb Jérémie Galarneau:
On Thu, Nov 21, 2013 at 4:48 AM, Klaus Dannecker
<[email protected]>
wrote:
Hi,
Nobody can help me?
now i have ubuntu 13.10 installed in a vmware.
but i have the same error!
s$ sudo make modules_install
make -C /lib/modules/3.11.0-12-generic/build
M=/home/klaus/lttng_src/lttng-modules modules_install
make[1]: Entering directory `/usr/src/linux-headers-3.11.0-12-generic'
INSTALL
/home/klaus/lttng_src/lttng-modules/lib/lttng-lib-ring-buffer.ko
Can't read private key
Ubuntu now ships with module signing enabled by default.
Does the installation fail, or is it just a warning?
i don't know
....
lsmod | grep lttng
-> no module found
The modules will not be automatically loaded after being built and
installed. You have to launch lttng-sessiond (as root) for that. What
is the output of the following commands?
make
sudo make modules_install
sudo depmod -a
sudo lttng-sessiond &
lsmod | grep lttng
klaus@ubuntu:~/lttng_src/lttng-modules$ make
make -C /lib/modules/3.11.0-12-generic/build
M=/home/klaus/lttng_src/lttng-modules modules
make[1]: Entering directory `/usr/src/linux-headers-3.11.0-12-generic'
/home/klaus/lttng_src/lttng-modules/probes/Makefile:30: File
/usr/src/linux-headers-3.11.0-12-generic/virt/kvm/iodev.h not found.
Probe
"kvm" x86-specific is disabled. Use full kernel source tree to enable it.
/home/klaus/lttng_src/lttng-modules/probes/Makefile:81: Files
/usr/src/linux-headers-3.11.0-12-generic/fs/ext3/*.h not found. Probe
"ext3"
is disabled. Use full kernel source tree to enable it.
/home/klaus/lttng_src/lttng-modules/probes/Makefile:142: Files
/usr/src/linux-headers-3.11.0-12-generic/fs/btrfs/*.h not found. Probe
"btrfs" is disabled. Use full kernel source tree to enable it.
/home/klaus/lttng_src/lttng-modules/probes/Makefile:158: Files
/usr/src/linux-headers-3.11.0-12-generic/fs/ext4/*.h not found. Probe
"ext4"
is disabled. Use full kernel source tree to enable it.
Building modules, stage 2.
MODPOST 44 modules
make[1]: Leaving directory `/usr/src/linux-headers-3.11.0-12-generic'
klaus@ubuntu:~/lttng_src/lttng-modules$ sudo make modules_install
make -C /lib/modules/3.11.0-12-generic/build
M=/home/klaus/lttng_src/lttng-modules modules_install
make[1]: Entering directory `/usr/src/linux-headers-3.11.0-12-generic'
INSTALL
/home/klaus/lttng_src/lttng-modules/lib/lttng-lib-ring-buffer.ko
Can't read private key
INSTALL
/home/klaus/lttng_src/lttng-modules/lttng-ring-buffer-client-discard.ko
Can't read private key
...
DEPMOD 3.11.0-12-generic
make[1]: Leaving directory `/usr/src/linux-headers-3.11.0-12-generic'
klaus@ubuntu:~/lttng_src/lttng-modules$
klaus@ubuntu:~/lttng_src/lttng-modules$ sudo depmod -a
klaus@ubuntu:~/lttng_src/lttng-modules$
klaus@ubuntu:~/lttng_src/lttng-modules$ sudo lttng-sessiond &
[1] 23486
klaus@ubuntu:~/lttng_src/lttng-modules$ lsmod | grep lttng
[1]+ Stopped sudo lttng-sessiond
klaus@ubuntu:~/lttng_src/lttng-modules$
Hard to say why lttng-sessiond received SIGSTOP...
Could you try running the session daemon in verbose mode in another
terminal?
sudo lttng-sessiond -vvv
klaus@ubuntu:~$ sudo lttng-sessiond -vvv
[sudo] password for klaus:
DEBUG3 [23710/23710]: Creating LTTng run directory: /var/run/lttng (in
create_lttng_rundir() at main.c:4267)
DEBUG2 [23710/23710]: Kernel consumer err path:
/var/run/lttng/kconsumerd/error (in main() at main.c:4696)
DEBUG2 [23710/23710]: Kernel consumer cmd path:
/var/run/lttng/kconsumerd/command (in main() at main.c:4698)
DEBUG1 [23710/23710]: Client socket path
/var/run/lttng/client-lttng-sessiond (in main() at main.c:4751)
DEBUG1 [23710/23710]: Application socket path
/var/run/lttng/lttng-ust-sock-5 (in main() at main.c:4752)
DEBUG1 [23710/23710]: Application wait path /lttng-ust-wait-5 (in main() at
main.c:4753)
DEBUG1 [23710/23710]: LTTng run directory path: /var/run/lttng (in main() at
main.c:4754)
DEBUG2 [23710/23710]: UST consumer 32 bits err path:
/var/run/lttng/ustconsumerd32/error (in main() at main.c:4763)
DEBUG2 [23710/23710]: UST consumer 32 bits cmd path:
/var/run/lttng/ustconsumerd32/command (in main() at main.c:4765)
DEBUG2 [23710/23710]: UST consumer 64 bits err path:
/var/run/lttng/ustconsumerd64/error (in main() at main.c:4774)
DEBUG2 [23710/23710]: UST consumer 64 bits cmd path:
/var/run/lttng/ustconsumerd64/command (in main() at main.c:4776)
DEBUG3 [23710/23710]: Created hashtable size 4 at 0x982c080 of type 1 (in
lttng_ht_new() at hashtable.c:127)
DEBUG3 [23710/23710]: Created hashtable size 4 at 0x982c270 of type 1 (in
lttng_ht_new() at hashtable.c:127)
DEBUG3 [23710/23710]: Created hashtable size 4 at 0x982c498 of type 1 (in
lttng_ht_new() at hashtable.c:127)
DEBUG3 [23710/23710]: Created hashtable size 4 at 0x982c6c0 of type 1 (in
lttng_ht_new() at hashtable.c:127)
DEBUG2 [23710/23710]: Creating consumer directory: /var/run/lttng/kconsumerd
(in set_consumer_sockets() at main.c:4309)
DEBUG1 [23710/23710]: Modprobe successfully lttng-tracer (in
modprobe_lttng_control() at modprobe.c:192)
DEBUG2 [23710/23710]: Kernel tracer version validated (major version 2) (in
kernel_validate_version() at kernel.c:700)
DEBUG1 [23710/23710]: Modprobe successfully lttng-ftrace (in
modprobe_lttng_data() at modprobe.c:228)
DEBUG1 [23710/23710]: Modprobe successfully lttng-kprobes (in
modprobe_lttng_data() at modprobe.c:228)
DEBUG1 [23710/23710]: Modprobe successfully lttng-kretprobes (in
modprobe_lttng_data() at modprobe.c:228)
DEBUG1 [23710/23710]: Modprobe successfully lttng-lib-ring-buffer (in
modprobe_lttng_data() at modprobe.c:228)
DEBUG1 [23710/23710]: Modprobe successfully lttng-ring-buffer-client-discard
(in modprobe_lttng_data() at modprobe.c:228)
DEBUG1 [23710/23710]: Modprobe successfully
lttng-ring-buffer-client-overwrite (in modprobe_lttng_data() at
modprobe.c:228)
DEBUG1 [23710/23710]: Modprobe successfully
lttng-ring-buffer-metadata-client (in modprobe_lttng_data() at
modprobe.c:228)
DEBUG1 [23710/23710]: Modprobe successfully
lttng-ring-buffer-client-mmap-discard (in modprobe_lttng_data() at
modprobe.c:228)
DEBUG1 [23710/23710]: Modprobe successfully
lttng-ring-buffer-client-mmap-overwrite (in modprobe_lttng_data() at
modprobe.c:228)
DEBUG1 [23710/23710]: Modprobe successfully
lttng-ring-buffer-metadata-mmap-client (in modprobe_lttng_data() at
modprobe.c:228)
DEBUG1 [23710/23710]: Modprobe successfully lttng-types (in
modprobe_lttng_data() at modprobe.c:228)
DEBUG1 [23710/23710]: Modprobe successfully lttng-probe-asoc (in
modprobe_lttng_data() at modprobe.c:228)
DEBUG1 [23710/23710]: Modprobe successfully lttng-probe-block (in
modprobe_lttng_data() at modprobe.c:228)
DEBUG1 [23710/23710]: Modprobe successfully lttng-probe-btrfs (in
modprobe_lttng_data() at modprobe.c:228)
DEBUG1 [23710/23710]: Modprobe successfully lttng-probe-compaction (in
modprobe_lttng_data() at modprobe.c:228)
DEBUG1 [23710/23710]: Modprobe successfully lttng-probe-ext3 (in
modprobe_lttng_data() at modprobe.c:228)
DEBUG1 [23710/23710]: Modprobe successfully lttng-probe-ext4 (in
modprobe_lttng_data() at modprobe.c:228)
DEBUG1 [23710/23710]: Modprobe successfully lttng-probe-gpio (in
modprobe_lttng_data() at modprobe.c:228)
DEBUG1 [23710/23710]: Modprobe successfully lttng-probe-irq (in
modprobe_lttng_data() at modprobe.c:228)
DEBUG1 [23710/23710]: Modprobe successfully lttng-probe-jbd (in
modprobe_lttng_data() at modprobe.c:228)
DEBUG1 [23710/23710]: Modprobe successfully lttng-probe-jbd2 (in
modprobe_lttng_data() at modprobe.c:228)
DEBUG1 [23710/23710]: Modprobe successfully lttng-probe-kmem (in
modprobe_lttng_data() at modprobe.c:228)
DEBUG1 [23710/23710]: Modprobe successfully lttng-probe-kvm (in
modprobe_lttng_data() at modprobe.c:228)
DEBUG1 [23710/23710]: Modprobe successfully lttng-probe-kvm-x86 (in
modprobe_lttng_data() at modprobe.c:228)
DEBUG1 [23710/23710]: Modprobe successfully lttng-probe-kvm-x86-mmu (in
modprobe_lttng_data() at modprobe.c:228)
DEBUG1 [23710/23710]: Modprobe successfully lttng-probe-lock (in
modprobe_lttng_data() at modprobe.c:228)
DEBUG1 [23710/23710]: Modprobe successfully lttng-probe-module (in
modprobe_lttng_data() at modprobe.c:228)
DEBUG1 [23710/23710]: Modprobe successfully lttng-probe-napi (in
modprobe_lttng_data() at modprobe.c:228)
DEBUG1 [23710/23710]: Modprobe successfully lttng-probe-net (in
modprobe_lttng_data() at modprobe.c:228)
DEBUG1 [23710/23710]: Modprobe successfully lttng-probe-power (in
modprobe_lttng_data() at modprobe.c:228)
DEBUG1 [23710/23710]: Modprobe successfully lttng-probe-printk (in
modprobe_lttng_data() at modprobe.c:228)
DEBUG1 [23710/23710]: Modprobe successfully lttng-probe-random (in
modprobe_lttng_data() at modprobe.c:228)
DEBUG1 [23710/23710]: Modprobe successfully lttng-probe-rcu (in
modprobe_lttng_data() at modprobe.c:228)
DEBUG1 [23710/23710]: Modprobe successfully lttng-probe-regmap (in
modprobe_lttng_data() at modprobe.c:228)
DEBUG1 [23710/23710]: Modprobe successfully lttng-probe-regulator (in
modprobe_lttng_data() at modprobe.c:228)
DEBUG1 [23710/23710]: Modprobe successfully lttng-probe-rpm (in
modprobe_lttng_data() at modprobe.c:228)
DEBUG1 [23710/23710]: Modprobe successfully lttng-probe-sched (in
modprobe_lttng_data() at modprobe.c:228)
DEBUG1 [23710/23710]: Modprobe successfully lttng-probe-scsi (in
modprobe_lttng_data() at modprobe.c:228)
DEBUG1 [23710/23710]: Modprobe successfully lttng-probe-signal (in
modprobe_lttng_data() at modprobe.c:228)
DEBUG1 [23710/23710]: Modprobe successfully lttng-probe-skb (in
modprobe_lttng_data() at modprobe.c:228)
DEBUG1 [23710/23710]: Modprobe successfully lttng-probe-sock (in
modprobe_lttng_data() at modprobe.c:228)
DEBUG1 [23710/23710]: Modprobe successfully lttng-probe-statedump (in
modprobe_lttng_data() at modprobe.c:228)
DEBUG1 [23710/23710]: Modprobe successfully lttng-probe-sunrpc (in
modprobe_lttng_data() at modprobe.c:228)
DEBUG1 [23710/23710]: Modprobe successfully lttng-probe-timer (in
modprobe_lttng_data() at modprobe.c:228)
DEBUG1 [23710/23710]: Modprobe successfully lttng-probe-udp (in
modprobe_lttng_data() at modprobe.c:228)
DEBUG1 [23710/23710]: Modprobe successfully lttng-probe-vmscan (in
modprobe_lttng_data() at modprobe.c:228)
DEBUG1 [23710/23710]: Modprobe successfully lttng-probe-workqueue (in
modprobe_lttng_data() at modprobe.c:228)
DEBUG1 [23710/23710]: Modprobe successfully lttng-probe-writeback (in
modprobe_lttng_data() at modprobe.c:228)
DEBUG1 [23710/23710]: Kernel tracer fd 6 (in init_kernel_tracer() at
main.c:2364)
DEBUG2 [23710/23710]: Creating consumer directory:
/var/run/lttng/ustconsumerd64 (in set_consumer_sockets() at main.c:4309)
DEBUG2 [23710/23710]: Creating consumer directory:
/var/run/lttng/ustconsumerd32 (in set_consumer_sockets() at main.c:4309)
DEBUG3 [23710/23710]: Session daemon client socket 9 and application socket
10 created (in init_daemon_socket() at main.c:4175)
DEBUG1 [23710/23710]: All permissions are set (in set_permissions() at
main.c:4255)
DEBUG3 [23710/23710]: Created hashtable size 4 at 0x982e160 of type 2 (in
lttng_ht_new() at hashtable.c:127)
DEBUG3 [23710/23710]: Global buffer per UID registry initialized (in
buffer_reg_init_uid_registry() at buffer-registry.c:99)
DEBUG3 [23710/23710]: Created hashtable size 4 at 0x982e388 of type 2 (in
lttng_ht_new() at hashtable.c:127)
DEBUG3 [23710/23710]: Global buffer per PID registry initialized (in
buffer_reg_init_pid_registry() at buffer-registry.c:220)
DEBUG1 [23710/23710]: epoll set max size is 327338 (in
compat_epoll_set_max_size() at compat-epoll.c:280)
DEBUG1 [23710/23710]: Command subsystem initialized (in cmd_init() at
cmd.c:3056)
DEBUG1 [23710/23710]: Pid 23710 written in file
/var/run/lttng/lttng-sessiond.pid (in utils_create_pid_file() at
utils.c:437)
DEBUG1 [23710/23710]: Pid 5345 written in file /var/run/lttng/jul.port (in
utils_create_pid_file() at utils.c:437)
DEBUG1 [23710/23710]: TCP inet operation timeout set to 216 sec (in
lttcomm_inet_init() at inet.c:529)
DEBUG1 [23710/23710]: Health check time delta in seconds set to 236 (in
health_init() at health.c:73)
DEBUG1 [23710/23820]: [thread] Manage health check started (in
thread_manage_health() at main.c:3511)
DEBUG1 [23710/23824]: [thread] Manage application started (in
thread_manage_apps() at main.c:1256)
DEBUG1 [23710/23823]: [thread] Manage application registration started (in
thread_registration_apps() at main.c:1766)
DEBUG1 [23710/23822]: [thread] Dispatch UST command started (in
thread_dispatch_ust_registration() at main.c:1543)
DEBUG1 [23710/23821]: [thread] Manage client started (in
thread_manage_clients() at main.c:3695)
DEBUG1 [23710/23821]: Accepting client command ... (in
thread_manage_clients() at main.c:3747)
DEBUG1 [23710/23819]: [ht-thread] startup. (in thread_ht_cleanup() at
ht-cleanup.c:35)
DEBUG3 [23710/23819]: [ht-thread] Polling on 2 fds. (in thread_ht_cleanup()
at ht-cleanup.c:59)
DEBUG1 [23710/23825]: [ust-thread] Manage application notify command (in
ust_thread_manage_notify() at ust-thread.c:38)
DEBUG1 [23710/23826]: [jul-thread] Manage JUL application registration. (in
jul_thread_manage_registration() at jul-thread.c:250)
DEBUG3 [23710/23826]: URI string: tcp://localhost (in uri_parse() at
uri.c:291)
DEBUG1 [23710/23824]: Apps thread polling on 2 fds (in thread_manage_apps()
at main.c:1286)
DEBUG1 [23710/23822]: Futex n to 1 prepare done (in futex_nto1_prepare() at
futex.c:75)
DEBUG1 [23710/23823]: Notifying applications of session daemon state: 1 (in
notify_ust_apps() at main.c:593)
DEBUG3 [23710/23825]: [ust-thread] Manage notify polling on 2 fds (in
ust_thread_manage_notify() at ust-thread.c:63)
DEBUG1 [23710/23820]: Health check ready (in thread_manage_health() at
main.c:3574)
DEBUG1 [23710/23827]: [thread] Thread manage kernel started (in
thread_manage_kernel() at main.c:794)
DEBUG1 [23710/23827]: Updating kernel poll set (in update_kernel_poll() at
main.c:654)
DEBUG1 [23710/23827]: Thread kernel polling on 2 fds (in
thread_manage_kernel() at main.c:839)
DEBUG1 [23710/23822]: Woken up but nothing in the UST command queue (in
thread_dispatch_ust_registration() at main.c:1566)
DEBUG2 [23710/23826]: IP address resolved to 127.0.0.1 (in set_ip_address()
at uri.c:132)
DEBUG3 [23710/23826]: URI dtype: 1, proto: 1, host: localhost, subdir: ,
ctrl: 0, data: 0 (in uri_parse() at uri.c:505)
PERROR [23710/23826]: bind inet: Address already in use (in
lttcomm_bind_inet_sock() at inet.c:109)
DEBUG1 [23710/23826]: [jul-thread] is cleaning up and stopping. (in
jul_thread_manage_registration() at jul-thread.c:356)
DEBUG3 [23710/23826]: [jul-thread] Cleaning JUL apps ht (in
clean_jul_apps_ht() at jul-thread.c:100)
DEBUG1 [23710/23823]: Got the wait shm fd 26 (in get_wait_shm() at
shm.c:115)
DEBUG1 [23710/23823]: Futex wait update active 1 (in futex_wait_update() at
futex.c:63)
DEBUG1 [23710/23823]: Accepting application registration (in
thread_registration_apps() at main.c:1803)
another terminal:
klaus@ubuntu:~/lttng_src/lttng-modules$ lsmod | grep lttng
lttng_probe_writeback 22927 0
lttng_probe_workqueue 13726 0
lttng_probe_vmscan 17138 0
....
but:
klaus@ubuntu:~/lttng_src/lttng-modules$ lttng list -k
Error: Unable to list kernel events: Tracing the kernel requires a root
lttng-sessiond daemon, as well as "tracing" group membership or root user ID
for the lttng client.
Error: Command error
klaus@ubuntu:~/lttng_src/lttng-modules$
then stop the command sudo lttng-sessiond -vvv with "STRG+C"
^CDEBUG1 [23710/23710]: SIGINT caught (in sighandler() at main.c:4374)
DEBUG1 [23710/23710]: Terminating all threads (in stop_threads() at
main.c:370)
DEBUG1 [23710/23710]: Futex n to 1 wake done (in futex_nto1_wake() at
futex.c:104)
DEBUG1 [23710/23821]: Clean command context structure (in
clean_command_ctx() at main.c:573)
...
klaus@ubuntu:~/lttng_src/lttng-modules$ lsmod | grep lttng
klaus@ubuntu:~/lttng_src/lttng-modules$
Everything looks fine to me.
The modules are loaded and unloaded automatically by the session
daemon when it is launched and stopped, respectively.
If you want to trace the kernel or list the kernel events, you will
have to launch a root session daemon (sudo lttng-sessiond -d) and then
create a tracing session either as root or as a member of the
"tracing" group.
Regards,
Jérémie
Regards,
Klaus
This should load the modules or at least log an error if it fails to do
so.
Thanks for your help!
Regards,
Klaus
Regards,
Jérémie
Thanks!
Am 13.11.2013 18:37, schrieb Klaus Dannecker:
Am 09.11.2013 09:33, schrieb Klaus Dannecker:
Hi,
I want to write a driver with trace events.
In the first step i compile the example trace-events-sample.c with the
makefile:
ifneq ($(KERNELRELEASE),)
obj-m := modul_trace-events-sample.o
modul_trace-events-sample-y := trace-events-sample.o
ccflags-y := -I$(src)
else
KDIR ?= /lib/modules/`uname -r`/build
default:
$(MAKE) -C $(KDIR) M=$$PWD
endif
now i get the modul_trace-events-sample.ko File.
now:
insmod modul_trace-events-sample.ko
lttng create
lttng enable-event -k -a
lttng start
...wait...
lttng stop
lttng destroy
now i look the result in the eclise viewer, but i found event
"trace_foo_bar" not in the session!
what am I doing wrong?
I use ubuntu 13.04 in a vmware
Thanks
_______________________________________________
Hi,
now i found a answer:
http://lists.lttng.org/pipermail/lttng-dev/2013-October/021540.html
now i download the lttng-module and compiled it.
$ git clone git://git.lttng.org/lttng-modules.git
$ cd lttng-tools
$ make
$ sudo make modules_install
here I get error
INSTALL
/mnt/hgfs/shared_Folder/lttng-modules/lib/lttng-lib-ring-buffer.ko
Can't read private key
...
what does that mean?
what should I do?
please help me!
another question:
when i create a trace events in module_a,
can i use it in module_b?
if yes, what should I do?
thanks Klaus
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