From mboxrd@z Thu Jan 1 00:00:00 1970 From: g_v_valentino@hotmail.com (Gianluca Valentino) Date: Tue, 18 May 2010 18:20:05 +0200 Subject: [ltt-dev] Problems with LTTV GUI (Solved) In-Reply-To: <20100518150204.GA27216@Krystal> References: , <20100518150204.GA27216@Krystal> Message-ID: Thank you Jerome and Mathieu, Although I patched the kernel correctly my ltt-control and lttv packages were incompatible with the 2.6.31.5 tree. Installing compatible versions did the trick. Regards, Gianluca > Date: Tue, 18 May 2010 11:02:04 -0400 > From: compudj@krystal.dyndns.org > To: g_v_valentino at hotmail.com > CC: jeromezhr at gmail.com; ltt-dev at lists.casi.polymtl.ca > Subject: Re: [ltt-dev] Problems with LTTV GUI > > * Gianluca Valentino (g_v_valentino at hotmail.com) wrote: > > > > Dear Jerome, > > > > I think I have destroyed it correctly, at least that's what it says when I run it in text-mode (see no. 8 below).. I will explain each step that I have done after booting with the LTTng patched kernel below: > > > > 1. Edit system-wide configuration (as explained in the guide: http://lttng.org/cgi-bin/gitweb.cgi?p=lttv.git;a=blob_plain;f=LTTngManual.html#section2) > > mkdir /mnt/debugfs > > cp /etc/fstab /etc/fstab.lttng.bkp > > echo "debugfs /mnt/debugfs debugfs rw 0 0" >> /etc/fstab > > 2. Insert the specific modules (every time I boot) > > modprobe kernel-trace > > modprobe mm-trace > > modprobe net-trace > > modprobe fs-trace > > modprobe jbd2-trace > > modprobe ext4-trace > > modprobe syscall-trace > > modprobe trap-trace > > modprobe ltt-statedump > > > > I couldn't do > > > > modprobe ltt-trace-control > > modprobe ltt-marker-control > > modprobe ltt-tracer > > modprobe ltt-serialize > > modprobe ltt-relay > > > > However these should be in-built as they appear as .o and .c files in /lib/modules/2.6.31.5-custom/build/ltt > > Please see the Compatibility list, available from the download section > of the lttng.org website: > > ltt-control 0.84 is compatible with LTTng 0.191 to 0.214, which means > kernels 2.6.32.4 to 2.6.33.4. You are using a 2.6.31.5 tree, so I wonder > which LTTng version you use. > > Thanks, > > Mathieu > > > > > 3. I installed the ltt-control and lttv packages as explained in the guide above > > > > 4. echo text > sudo tee -a /mnt/debugfs/ltt/write_event does not give me any error > > > > 5. I execute sudo ltt-armall, and sudo lttv-gui > > > > 6. I click on the 'traffic light' icon and I enter the root password. I click on start and then stop. LTTng Trace Control asks me if I want to open the trace in LTTV. I click yes, and it tells me "Cannot open trace: maybe you should enter in the directory to select it". Checking the sizes of the files in /tmp/trace1 (as you asked me) are all zero-sized. > > > > 7. With the CLI version of lttv: I execute sudo lttctl -C -w /tmp/trace1 trace1. It gives me: > > > > Linux Trace Toolkit Trace Control 0.84-07042010 > > > > Controlling trace : trace1 > > > > lttctl: Creating trace > > lttctl: Forking lttd > > Linux Trace Toolkit Trace Daemon 0.84-07042010 > > > > Reading from debugfs directory : /sys/kernel/debug/ltt/trace1 > > Writing to trace directory : /tmp/trace1 > > > > lttctl: Starting trace > > ubuntu at beagleboard:~$ > > > > 8. Then I execute sudo lttctl -D trace1 to destroy trace. It gives me: > > > > > > > > Linux Trace Toolkit Trace Control 0.84-07042010 > > > > Controlling trace : trace1 > > > > lttctl: Pausing trace > > lttctl: Destroying trace > > ubuntu at beagleboard:~$ > > > > 9. The only error I encountered was when I tried lttv -m textDump -t /tmp/trace1 for a simple trace dump in text format. > > > > After a series of long lines like: > > > > The input data file /tmp/trace1/net_0 does not contain a trace > > > > it told me WARNING **: Trace /tmp/trace1 has no metadata tracefile > > > > and CRITICAL **: cannot open trace /tmp/trace1 > > > > and finally: /usr/local/bin/lttv: line 15: 2152 Segmentation fault $0.real $* > > > > > > > > Date: Tue, 18 May 2010 21:27:20 +0800 > > Subject: Re: [ltt-dev] Problems with LTTV GUI > > From: jeromezhr@gmail.com > > To: g_v_valentino at hotmail.com > > CC: ltt-dev at lists.casi.polymtl.ca > > > > 2010/5/18 Gianluca Valentino > > > > > > > > > > > > > > > > > > > > > > From: g_v_valentino@hotmail.com > > To: jeromezhr at gmail.com > > Subject: RE: [ltt-dev] Problems with LTTV GUI > > > > Date: Tue, 18 May 2010 15:18:16 +0200 > > > > > > > > Dear Jerome, > > > > Thanks for your reply. Yes they are all zero-sized.. > > > > Regards, > > > > Gianluca > > > > > > > > So I think there must be some problems in traceing. > > Have you destroyed your trace correctly? > > -- > > Regards, > > > > Jerome > > > > _________________________________________________________________ > > Your E-mail and More On-the-Go. Get Windows Live Hotmail Free. > > https://signup.live.com/signup.aspx?id=60969 > > _______________________________________________ > > ltt-dev mailing list > > ltt-dev at lists.casi.polymtl.ca > > http://lists.casi.polymtl.ca/cgi-bin/mailman/listinfo/ltt-dev > > > -- > Mathieu Desnoyers > Operating System Efficiency R&D Consultant > EfficiOS Inc. > http://www.efficios.com _________________________________________________________________ Hotmail: Trusted email with powerful SPAM protection. https://signup.live.com/signup.aspx?id=60969 -------------- next part -------------- An HTML attachment was scrubbed... URL: From mboxrd@z Thu Jan 1 00:00:00 1970 From: g_v_valentino@hotmail.com (Gianluca Valentino) Date: Tue, 18 May 2010 18:20:05 +0200 Subject: [ltt-dev] Problems with LTTV GUI (Solved) In-Reply-To: <20100518150204.GA27216@Krystal> References: , <20100518150204.GA27216@Krystal> Message-ID: Message-ID: <20100518162005.shs5EgGjNOvc2AsPPD8fPxPZONaJI1lgBQoFREa0l0A@z> Thank you Jerome and Mathieu, Although I patched the kernel correctly my ltt-control and lttv packages were incompatible with the 2.6.31.5 tree. Installing compatible versions did the trick. Regards, Gianluca > Date: Tue, 18 May 2010 11:02:04 -0400 > From: compudj@krystal.dyndns.org > To: g_v_valentino at hotmail.com > CC: jeromezhr at gmail.com; ltt-dev at lists.casi.polymtl.ca > Subject: Re: [ltt-dev] Problems with LTTV GUI > > * Gianluca Valentino (g_v_valentino at hotmail.com) wrote: > > > > Dear Jerome, > > > > I think I have destroyed it correctly, at least that's what it says when I run it in text-mode (see no. 8 below).. I will explain each step that I have done after booting with the LTTng patched kernel below: > > > > 1. Edit system-wide configuration (as explained in the guide: http://lttng.org/cgi-bin/gitweb.cgi?p=lttv.git;a=blob_plain;f=LTTngManual.html#section2) > > mkdir /mnt/debugfs > > cp /etc/fstab /etc/fstab.lttng.bkp > > echo "debugfs /mnt/debugfs debugfs rw 0 0" >> /etc/fstab > > 2. Insert the specific modules (every time I boot) > > modprobe kernel-trace > > modprobe mm-trace > > modprobe net-trace > > modprobe fs-trace > > modprobe jbd2-trace > > modprobe ext4-trace > > modprobe syscall-trace > > modprobe trap-trace > > modprobe ltt-statedump > > > > I couldn't do > > > > modprobe ltt-trace-control > > modprobe ltt-marker-control > > modprobe ltt-tracer > > modprobe ltt-serialize > > modprobe ltt-relay > > > > However these should be in-built as they appear as .o and .c files in /lib/modules/2.6.31.5-custom/build/ltt > > Please see the Compatibility list, available from the download section > of the lttng.org website: > > ltt-control 0.84 is compatible with LTTng 0.191 to 0.214, which means > kernels 2.6.32.4 to 2.6.33.4. You are using a 2.6.31.5 tree, so I wonder > which LTTng version you use. > > Thanks, > > Mathieu > > > > > 3. I installed the ltt-control and lttv packages as explained in the guide above > > > > 4. echo text > sudo tee -a /mnt/debugfs/ltt/write_event does not give me any error > > > > 5. I execute sudo ltt-armall, and sudo lttv-gui > > > > 6. I click on the 'traffic light' icon and I enter the root password. I click on start and then stop. LTTng Trace Control asks me if I want to open the trace in LTTV. I click yes, and it tells me "Cannot open trace: maybe you should enter in the directory to select it". Checking the sizes of the files in /tmp/trace1 (as you asked me) are all zero-sized. > > > > 7. With the CLI version of lttv: I execute sudo lttctl -C -w /tmp/trace1 trace1. It gives me: > > > > Linux Trace Toolkit Trace Control 0.84-07042010 > > > > Controlling trace : trace1 > > > > lttctl: Creating trace > > lttctl: Forking lttd > > Linux Trace Toolkit Trace Daemon 0.84-07042010 > > > > Reading from debugfs directory : /sys/kernel/debug/ltt/trace1 > > Writing to trace directory : /tmp/trace1 > > > > lttctl: Starting trace > > ubuntu at beagleboard:~$ > > > > 8. Then I execute sudo lttctl -D trace1 to destroy trace. It gives me: > > > > > > > > Linux Trace Toolkit Trace Control 0.84-07042010 > > > > Controlling trace : trace1 > > > > lttctl: Pausing trace > > lttctl: Destroying trace > > ubuntu at beagleboard:~$ > > > > 9. The only error I encountered was when I tried lttv -m textDump -t /tmp/trace1 for a simple trace dump in text format. > > > > After a series of long lines like: > > > > The input data file /tmp/trace1/net_0 does not contain a trace > > > > it told me WARNING **: Trace /tmp/trace1 has no metadata tracefile > > > > and CRITICAL **: cannot open trace /tmp/trace1 > > > > and finally: /usr/local/bin/lttv: line 15: 2152 Segmentation fault $0.real $* > > > > > > > > Date: Tue, 18 May 2010 21:27:20 +0800 > > Subject: Re: [ltt-dev] Problems with LTTV GUI > > From: jeromezhr@gmail.com > > To: g_v_valentino at hotmail.com > > CC: ltt-dev at lists.casi.polymtl.ca > > > > 2010/5/18 Gianluca Valentino > > > > > > > > > > > > > > > > > > > > > > From: g_v_valentino@hotmail.com > > To: jeromezhr at gmail.com > > Subject: RE: [ltt-dev] Problems with LTTV GUI > > > > Date: Tue, 18 May 2010 15:18:16 +0200 > > > > > > > > Dear Jerome, > > > > Thanks for your reply. Yes they are all zero-sized.. > > > > Regards, > > > > Gianluca > > > > > > > > So I think there must be some problems in traceing. > > Have you destroyed your trace correctly? > > -- > > Regards, > > > > Jerome > > > > _________________________________________________________________ > > Your E-mail and More On-the-Go. Get Windows Live Hotmail Free. > > https://signup.live.com/signup.aspx?id=60969 > > _______________________________________________ > > ltt-dev mailing list > > ltt-dev at lists.casi.polymtl.ca > > http://lists.casi.polymtl.ca/cgi-bin/mailman/listinfo/ltt-dev > > > -- > Mathieu Desnoyers > Operating System Efficiency R&D Consultant > EfficiOS Inc. > http://www.efficios.com _________________________________________________________________ Hotmail: Trusted email with powerful SPAM protection. https://signup.live.com/signup.aspx?id=60969 -------------- next part -------------- An HTML attachment was scrubbed... URL: From mboxrd@z Thu Jan 1 00:00:00 1970 From: g_v_valentino@hotmail.com (Gianluca Valentino) Date: Tue, 18 May 2010 18:20:05 +0200 Subject: [ltt-dev] Problems with LTTV GUI (Solved) In-Reply-To: <20100518150204.GA27216@Krystal> References: , <20100518150204.GA27216@Krystal> Message-ID: Message-ID: <20100518162005.9KKxBXF-78JF6WjJGj9T-W5hg5MZFRmNCii85LSlsIM@z> Thank you Jerome and Mathieu, Although I patched the kernel correctly my ltt-control and lttv packages were incompatible with the 2.6.31.5 tree. Installing compatible versions did the trick. Regards, Gianluca > Date: Tue, 18 May 2010 11:02:04 -0400 > From: compudj@krystal.dyndns.org > To: g_v_valentino at hotmail.com > CC: jeromezhr at gmail.com; ltt-dev at lists.casi.polymtl.ca > Subject: Re: [ltt-dev] Problems with LTTV GUI > > * Gianluca Valentino (g_v_valentino at hotmail.com) wrote: > > > > Dear Jerome, > > > > I think I have destroyed it correctly, at least that's what it says when I run it in text-mode (see no. 8 below).. I will explain each step that I have done after booting with the LTTng patched kernel below: > > > > 1. Edit system-wide configuration (as explained in the guide: http://lttng.org/cgi-bin/gitweb.cgi?p=lttv.git;a=blob_plain;f=LTTngManual.html#section2) > > mkdir /mnt/debugfs > > cp /etc/fstab /etc/fstab.lttng.bkp > > echo "debugfs /mnt/debugfs debugfs rw 0 0" >> /etc/fstab > > 2. Insert the specific modules (every time I boot) > > modprobe kernel-trace > > modprobe mm-trace > > modprobe net-trace > > modprobe fs-trace > > modprobe jbd2-trace > > modprobe ext4-trace > > modprobe syscall-trace > > modprobe trap-trace > > modprobe ltt-statedump > > > > I couldn't do > > > > modprobe ltt-trace-control > > modprobe ltt-marker-control > > modprobe ltt-tracer > > modprobe ltt-serialize > > modprobe ltt-relay > > > > However these should be in-built as they appear as .o and .c files in /lib/modules/2.6.31.5-custom/build/ltt > > Please see the Compatibility list, available from the download section > of the lttng.org website: > > ltt-control 0.84 is compatible with LTTng 0.191 to 0.214, which means > kernels 2.6.32.4 to 2.6.33.4. You are using a 2.6.31.5 tree, so I wonder > which LTTng version you use. > > Thanks, > > Mathieu > > > > > 3. I installed the ltt-control and lttv packages as explained in the guide above > > > > 4. echo text > sudo tee -a /mnt/debugfs/ltt/write_event does not give me any error > > > > 5. I execute sudo ltt-armall, and sudo lttv-gui > > > > 6. I click on the 'traffic light' icon and I enter the root password. I click on start and then stop. LTTng Trace Control asks me if I want to open the trace in LTTV. I click yes, and it tells me "Cannot open trace: maybe you should enter in the directory to select it". Checking the sizes of the files in /tmp/trace1 (as you asked me) are all zero-sized. > > > > 7. With the CLI version of lttv: I execute sudo lttctl -C -w /tmp/trace1 trace1. It gives me: > > > > Linux Trace Toolkit Trace Control 0.84-07042010 > > > > Controlling trace : trace1 > > > > lttctl: Creating trace > > lttctl: Forking lttd > > Linux Trace Toolkit Trace Daemon 0.84-07042010 > > > > Reading from debugfs directory : /sys/kernel/debug/ltt/trace1 > > Writing to trace directory : /tmp/trace1 > > > > lttctl: Starting trace > > ubuntu at beagleboard:~$ > > > > 8. Then I execute sudo lttctl -D trace1 to destroy trace. It gives me: > > > > > > > > Linux Trace Toolkit Trace Control 0.84-07042010 > > > > Controlling trace : trace1 > > > > lttctl: Pausing trace > > lttctl: Destroying trace > > ubuntu at beagleboard:~$ > > > > 9. The only error I encountered was when I tried lttv -m textDump -t /tmp/trace1 for a simple trace dump in text format. > > > > After a series of long lines like: > > > > The input data file /tmp/trace1/net_0 does not contain a trace > > > > it told me WARNING **: Trace /tmp/trace1 has no metadata tracefile > > > > and CRITICAL **: cannot open trace /tmp/trace1 > > > > and finally: /usr/local/bin/lttv: line 15: 2152 Segmentation fault $0.real $* > > > > > > > > Date: Tue, 18 May 2010 21:27:20 +0800 > > Subject: Re: [ltt-dev] Problems with LTTV GUI > > From: jeromezhr@gmail.com > > To: g_v_valentino at hotmail.com > > CC: ltt-dev at lists.casi.polymtl.ca > > > > 2010/5/18 Gianluca Valentino > > > > > > > > > > > > > > > > > > > > > > From: g_v_valentino@hotmail.com > > To: jeromezhr at gmail.com > > Subject: RE: [ltt-dev] Problems with LTTV GUI > > > > Date: Tue, 18 May 2010 15:18:16 +0200 > > > > > > > > Dear Jerome, > > > > Thanks for your reply. Yes they are all zero-sized.. > > > > Regards, > > > > Gianluca > > > > > > > > So I think there must be some problems in traceing. > > Have you destroyed your trace correctly? > > -- > > Regards, > > > > Jerome > > > > _________________________________________________________________ > > Your E-mail and More On-the-Go. Get Windows Live Hotmail Free. > > https://signup.live.com/signup.aspx?id=60969 > > _______________________________________________ > > ltt-dev mailing list > > ltt-dev at lists.casi.polymtl.ca > > http://lists.casi.polymtl.ca/cgi-bin/mailman/listinfo/ltt-dev > > > -- > Mathieu Desnoyers > Operating System Efficiency R&D Consultant > EfficiOS Inc. > http://www.efficios.com _________________________________________________________________ Hotmail: Trusted email with powerful SPAM protection. https://signup.live.com/signup.aspx?id=60969 -------------- next part -------------- An HTML attachment was scrubbed... URL: