[lttng-dev] problem starting trace on arm target

2012-05-09 Thread Fahad Usman
Hi, I am trying to use lttng-modules on an arm target, but when I try to start tracing I get some errors like PERROR: sendmsg: Bad file descriptor [in lttcomm_send_unix_sock() at sessiond-comm.c:310] PERROR: send consumer channel: Bad file descriptor [in send_kconsumer_session_streams() at

Re: [lttng-dev] problem starting trace on arm target

2012-05-09 Thread David Goulet
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Hi Fahad, This is error is a bit peculiar... Can you provide the full log of the session daemon like so. (term1) # lttng-sessiond -vvv (term2) the rest of the commands adding -vvv to lttng command line. Thanks! David On 09/05/12 08:20 AM, Fahad

[lttng-dev] Is it possible profiling android ice-cream ( kernel 3.0) with LTTng 2.0 ?

2012-05-09 Thread GJ Chang
Hello im GJ and new of LTTng and Im trying to profiling kernel in android with LTTng 2.0. so i build up LTTng modules and got belows lttng-ring-buffer-client-discard.ko lttng-ring-buffer-client-mmap-discard.ko lttng-ring-buffer-client-mmap-overwrite.ko

Re: [lttng-dev] [rp] [RFC] Readiness for URCU release with RCU lock-free hash table

2012-05-09 Thread Mathieu Desnoyers
* Paul E. McKenney (paul...@linux.vnet.ibm.com) wrote: On Tue, May 08, 2012 at 02:48:27PM -0400, Mathieu Desnoyers wrote: * Paul E. McKenney (paul...@linux.vnet.ibm.com) wrote: On Mon, May 07, 2012 at 12:10:55PM -0400, Mathieu Desnoyers wrote: * Paul E. McKenney

Re: [lttng-dev] problem starting trace on arm target

2012-05-09 Thread Fahad Usman
Hi David, here are the logs on the two terminals, Term1: http://pastebin.com/dYGCrGcb Term2: http://pastebin.com/4XCn4Asv Please let me know if you want any other info from me. -- Fahad On Wed, May 9, 2012 at 6:08 PM, David Goulet dgou...@efficios.com wrote: -BEGIN PGP SIGNED MESSAGE-

Re: [lttng-dev] Is it possible profiling android ice-cream ( kernel 3.0) with LTTng 2.0 ?

2012-05-09 Thread Fred Wulff
On Wed, May 9, 2012 at 6:55 AM, GJ Chang gijae.ch...@gmail.com wrote: Hello im GJ and new of LTTng and Im trying to profiling kernel in android with LTTng 2.0. so i build up LTTng modules and got belows lttng-ring-buffer-client-discard.ko lttng-ring-buffer-client-mmap-discard.ko

Re: [lttng-dev] [PATCH] Create kernel events by writing to proc file

2012-05-09 Thread Mathieu Desnoyers
* Francis Giraldeau (francis.girald...@gmail.com) wrote: This feature allow to write events in the kernel trace stream by writing to the file /proc/lttng_user_event. The content is written unmodified to the trace as string type. The maximum string length saved per event is 256 bytes. The

[lttng-dev] UST lttng enable-event output improvement

2012-05-09 Thread Ettore Del Negro
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Hello, i have a simple question which may lead to a small user experience improvement: lttng create tsession Session tsession created. Traces will be written in .../lttng-traces/tsession-20120510-015819 lttng enable-channel tchan -u -s tsession