similar to: Using DTrace to monitor productions systems

Hi all, can anyone point me to a document that descirbes how to trace into an OS crash under Solaris 10? My hope is to get target-oriented description to figure out the system call and the process/thread that lead to the crash. Regards, Andreas

Hi, Chris (cc) and I try to get the SGE master monitor work with Apple Leopard dtrace. Unfortunately we are stuck with the error msg below. Anyone having an idea what could be the cause? What I can rule out as cause is function inlining for the reasons explained below. Background information on SGE master monitor implementation is under http://wiki.gridengine.info/wiki/index.php/Dtrace

I've searched the archive for this mailing list and the bug list for OpenSSH for this, and I'm finding nothing. I'd appreciate it if somoene could point me to an existing thread about this. (I know that other people are aware of the problem, though, so I'm a bit surprised to find nothing.) We're running OpenSSH under Solaris 10 using SMF instead of a legacy init script. SMF

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

Full_Name: Volkmar Klatt Version: 2.6.2 OS: linux Submission from: (NULL) (84.147.0.178) Hello, the documentation article ?Quotes from package:base could be improved by discussing the meaning of "\0" escape sequence. In R (currently used: R-2.6.2), a "\0" in a string will silently terminate that string, just as it would in C code. There is no warning about an unknown escape

How do I find out why df -k is taking soo long to respond only sometimes? -- Asif Iqbal PGP Key: 0xE62693C5 KeyServer: pgp.mit.edu A: Because it messes up the order in which people normally read text. Q: Why is top-posting such a bad thing?

Just showing someone how great DTrace is and then we spot something I do not understand. Of course it can be a major misunderstanding of myself. Would appreciate another (expert) look upon this. The goal we try to achieve is trying to get insight if there is a bursty nature in the time slot when system calls are done. Following DTrace snippet is tried: dtrace -q -p 3173 -n

Hi all, We just got a shiny new T5440, and one of the first things I noticed (besides the insane number of hardware contexts), is that dtrace takes 30 seconds to a minute to fire up scripts with 5-6 probes, where our T5220 usually takes under a second. Shutdown is similar, though slightly faster. This is mostly annoying because it takes so long to attach that it''s hard to tell when

Hi all, I am trying to write a D script which would print ustack() for every program in the system receiving SIGSEGV. All the stacks printed in trap()/sigtoproc() context do not have meaningful symbols. The following solves the problem to some degree but I''d much rather have a self-contained D script. dtrace -w -n ''fbt:genunix:sigtoproc:entry/arg2 == 11/ {

Hola, I am trying to isolate the memory leak I suspect in a mailman installation ? I found: http://blogs.sun.com/sanjeevb/date/200506 It gives an error: god at irt-smtp-02:~ 9:21am 65 # ./memleak.d 10312 dtrace: failed to compile script ./memleak.d: line 3: probe description pid10312:libc.so.1:malloc:entry does not match any probes I am on SunOS 5.10 Generic_127112-07 i86pc i386 i86pc Are

I''d like to see if we can use DTrace to as the kernel implementation of the BSD systrace security policy system (http://www.systrace.org). I don''t really want to port systrace to Solaris because I think with DTrace we already have all the necessary in kernel hooks to do this. With systrace you express things like: "httpd can bind to port 80 but not any other port, it

Hello, I try to write a bash skript and I want to use the variables from my bash skript into R. Ist that possible? My bash skript creates lots of *.data files. I want forward these files directly into R (in x.data.bz2), so that R creates a few data automatically also in PDF. For example: bash created files: hello.data , world.data how R created these files in pdf? please look my plot.R

This question is concerning ZFS. We have a Sun Fire V890 attached to a EMC disk array. Here''s are plan to incorporate ZFS: On our EMC storage array we will create 3 LUNS. Now how would ZFS be used for the best performance? What I''m trying to ask is if you have 3 LUNS and you want to create a ZFS storage pool, would it be better to have a storage pool per LUN or combine the 3

Hi there, I am trying to diagnose a performance problem on a Sun T5120 running Solaris 10. I see general poor performance using Java and, in particular, loading classes. I have developed a simple java test that loads all of the classes in a Crystal Reports JAR file (around 7000 classes) which takes much longer on the T5120 (40 secs) than on a Core 2 Duo windows PC (5 secs). I recognise that this

Hello, I use Brendan''s sysperfstat script to see the overall system performance and found the the disk utilization is over 100: 15:51:38 14.52 15.01 200.00 24.42 0.00 0.00 83.53 0.00 15:51:42 11.37 15.01 200.00 25.48 0.00 0.00 88.43 0.00 ------ Utilisation ------ ------ Saturation ------ Time %CPU %Mem %Disk %Net CPU Mem

Hi guys, I tried to use a global sieve skript to sort spam mails into a subfolder of INBOX. I?m using mdbox. The log shows that the script is called and executed but it is not able to find or create the mailbox: Sep 4 15:18:55 mercury dovecot: lmtp(6237, mail at steulerfliesen.de): Debug: Namespace : Permission lookup failed from /var/mail/steulerfliesen.de/mail/mdbox/mailboxes/Spamverdacht

Hi all, Is there any way to get a skript or some commands executed on connection(!) of a host (OS is Linux)? I'd like to set a host route on my router (my LAN server running Debian Linux) when my notebook (Debian Linux, too) connects to it. As I understood tinc-up is executed on startup of the tinc-daemon which doesn't fit for me. The hostroute is ONLY to be set if the Notebook is

Took me a while but I figured out how to put in common values of group means/counts, etc. to do the same thing as egen. lapply with split and then unsplit. Thomas Davidoff Assistant Professor Haas School of Business UC Berkeley Berkeley, CA 94720 phone: (510) 643-1425 fax: (510) 643-7357 davidoff@haas.berkeley.edu http://faculty.haas.berkeley.edu/davidoff [[alternative HTML

I get the following when I try to run R from the terminal (I think ok from the gui, but not what I want to do): dyld: Symbol not found: __cg_jpeg_resync_to_restart Referenced from: /System/Library/Frameworks/ ApplicationServices.framework/Versions/A/Frameworks/ImageIO.framework/ Versions/A/ImageIO Expected in: /sw/lib/libJPEG.dylib Trace/BPT trap Any suggestions? I have installed the

I want to do the following: glm(y ~ x1 + x2 +...) within a panel. Hence y, x1, and x2 all vary at the individual level. However, there is likely correlation of these variables within an individual, so standard errors need adjustment. I do not want to estimate fixed effects, but do want to cluster standard errors at the individual level. Is there an automated way to do this? Nothing in