similar to: Existing Dtrace to examine kernel memory page allocation?

Hi all, (CC''ing dtrace-discuss as an FYI+workaround) I''m using dtrace -h to define provider probes for my application, and it wraps the resulting probe provider definitions in an #if _DTRACE_VERSION. Everything works fine for cc/CC, but gcc/g++ (gccfss v4.2.0) doesn''t seem to define it and the provider call macros expand to nothing instead. A diff shows that gcc uses

Hi all, What is the correct way to give one non-root user the ability to use DTrace with providers running in a process by another user? Through the Web Stack project and some work by Ludovic Champenois and Nasser Nouri, we have done a bit of work to bring together parts of chime, the Web Stack Apache, Ruby and PHP providers, and stuff reused from the DTrace toolkit. It''s in

Hi all, Has there been any progress with libtools DTrace USDT support http://www.mail-archive.com/libtool at gnu.org/msg10587.html thanks ----- Original Message ----- >From Charles Koester <charles.koester at oracle.com> Date Mon, 23 Nov 2009 17:01:17 -0800 To Marina Fisher <marina.fisher at sun.com> Subject DTrace & libtool "best practices" Greetings,

All, With Jon Haslam''s exciting news about the DTrace doc wiki (if you haven''t seen it yet, make your way to http://wikis.sun.com/display/DTrace), and with some of the discussion with the Apple folks, I''m wondering if the time isn''t right for something of a DTrace summit, perhaps as an unconference. The idea here would not be a DTrace user group (though that

Hi, Yufei: Thanks for your kind action. Let me centralize all the harm-hearted guys and involved alias in one email. Below is the answer of your question (Can you reply with more details on what failed? Does websphere use an IBM or Sun developed SDK? ) 1. Seems IBM bundled JDK can not detect agent options, like below: If use Sun JDK 1.5, no problem: /usr/jdk/jdk1.5.0_06/bin/java

Hello, I''m trying to debug an issue with rpc.metad on Solaris 10, basecally I believe the failure path is - svc_init -- check_sys --- check_host ---- strcmp(hostname, mynode()) It seems that for some reason hostname and mynode didn''t match then I would like to use dtrace to show the argument of the strcmp However the dtrace pid provider can''t trace functions

Hi Nils, all, I tried the ''FBT-trick'' suggested below by Nils and (of course :-) ) it works and gives me a pile of output. Good enough to show that indeed Linux application behavior is not totally opaque, good enough to for instance show that ''system call mapping'' is taking place. I wonder, is there any documentation available for lxsyscall module ? To learn

------------------forwarded------------------------------------ This is to help my customer to migrate their IBM websphere 6.0.2 to run on solaris 10 platform. Customer is eager to use the dtrace agent of JDK (https://solaris10-dtrace-vm-agents.dev.java.net/ ) to benefit their IBM websphere server, I am not sure whether we can use this agent in IBM websphere bundled JDK whose version is JDK

I need a bigger DIF. Please advise. rick -- Rickey C. Weisner Software Development and Performance Specialist Sun Microsystems, INC cell phone: 615-308-1147 email: rick.weisner at sun.com

Hi, This is not a DTrace technical question (so, please don''t flame me for it) :) This is regarding the DTrace (un)conference TShirt. I am curious to know what engine is it. Could not figure it out. Thanks and regards, Sanjeev. -- Solaris Revenue Products Engineering, India Engineering Center, Sun Microsystems India Pvt Ltd. Tel: x27521 +91 80 669 27521

X.Org has adopted GNU autoconf as its build configuration mechanism, so when I integrated the dtrace probes, I checked to see if they should be built using this test, checking for the existence of a program named "dtrace" in the path: dnl Check for dtrace program (needed to build Xserver dtrace probes) AC_ARG_WITH(dtrace, AS_HELP_STRING([--with-dtrace=PATH], [Enable dtrace

DTrace folks, I''m pleased to introduce a potential new DTrace-sponsored project: the Erlang DTrace provider. To be good OpenSolaris citizens, we want to put the formation of this officially sponsored project to a vote -- as outlined in the OpenSolaris Constitution -- so here are the details for the new Project, as prepared by the Project Team: Name : Erlang DTrace Integration

My leaky memory says we moved entry-point into some form of debug record in the standard libraries, circa Solaris 8/9. Before that, my group maintained text files that listed all the entry-points and their parameters for libraries like libc.so, so that we could print out parameter values in apptrace(8). There''s a (small) chance the records are complete enough that dtrace could use the

Dear Experts, My customer is migrating to Solaris 10 from Solaris 8 and have asked me to determine if: With Dtrace, is the user limited to probing only processes they own? The customer has a general security requirement to control user access via management of privileges. Currently, on Solaris 8, LDAP is strongly while RBAC is weakly applied. This will likely change in the Solaris 10 production

As noted on my blog and at http://www.opensolaris.org/os/community/dtrace/shells/ I''ve made available a DTrace provider for the Bourne shell. Before anyone starts yelling at me for not starting with another shell, read the blog I made explaining why we started with shell (link on the community page referenced above). For /bin/sh, I''ve put up something akin to a chapter in

Hello, I''m a newby to dtrace and have just installed the dtrace toolkit v0.92 on a core soalris 10 1/06 installation on SUN v40z. I have tried the following commands: iotop iosnoop but I get the message dtrace: invalid probe specifier and a lot of code. At the end it says: : in action list: failed to resolve uid: Unknown variable name Could it be, that there are some

I tried some of the scripts in the toolkit (opensnoop, execsnoop, dtruss), and I keep seeing errors like this: dtrace: error on enabled probe ID 3 (ID 113: syscall::exece:return): invalid kernel access in action #5 at DIF offset 0 Anyone know what could be the problem? TIA This message posted from opensolaris.org

Hello, I''m building some simple monitoring tools to watch zfs storage servers. Is this possible to run dtrace script for example 10 seconds? (Of course it is, I just trying to figure out how). Right know it has to be stopped by "CTRL-C" I''m particulary interested in scripts like iscsiio.d, iscsiwho.d from

Hi all, I''m trying to run dtrace -c on a program that takes command-line arguments... is there any way to tell dtrace where its args let off and the target''s begin, or will I have to write a shell script that checks for ''--'' or some such? Thanks, Ryan -- This message posted from opensolaris.org

I''m getting an odd behavior while trying to trace a mysql process using the -p flag on a Sun Cluster. This fails # dtrace -n ''pid$target::*mysql_parse*:entry {}'' -p `pgrep -x mysqld` dtrace: failed to grab pid 16537: process is traced Yet this works # dtrace -n ''pid$1::*mysql_parse*:entry {}'' `pgrep -x mysqld` dtrace: description