similar to: dtrace: failed to initialize dtrace: DTrace device not available on system

Hey, Do you guys think that is a good idea to have a manual page for each provider with a complete description of what probes are offered ? Found some already under 7D category: dtrace dtrace (7d) - DTrace dynamic tracing facility fasttrap fasttrap (7d) - DTrace user instruction tracing provider fbt fbt (7d) - DTrace function boundary tracing provider

Is there a trick to listing available providers? I can''t find it.

Hi, If you have a custom kernel (and therefore have duplicates of everything in /kernel in your custom kernel) and have noticed that when you try to use anonymous tracing, dtrace adds multiple copies of the forceload directives to /etc/system, e.g.: * vvvv Added by DTrace * * The following forceload directives were added by dtrace(1M) to allow for * tracing during boot. If these

OK, I''ve been fritzing around with something I noticed last night, thinking that I understood what was going on, but now it''s getting confusing again. A system that has been running for a couple of months had a hole in the probe ID list near the end in the middle of the fbt probes. And then a couple of syscall probes were stuck in the hole. It looked like this: ... 40311

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

Hello, on a v20z, we have as DOM 0 a Solaris XEN on snv44 64bits and we have as DOM U a Solaris XEN on snv44 64 bits. We then install a pseudo driver in the Solaris DOM 1 XEN snv44: installation is ok and driver works as expected. But on reboot of DOM 1, the driver is no more there (in modinfo, driver not found). Is there something special to do after a pseudo driver installation in a Solaris

Hello all, I am trying to set up my brother's UPS (remotely over internet) on an OpenIndiana-based storage box. According to him, the UPS is probably an Ippon Back Power Pro 600 dated around 2003 (battery recently replaced), and it has an USB connection. Sorry for a relatively long post with a log of my successes and failures, in the hopes that someone would point out what I did wrong.

Hi Folks, I''ve got a 3.9 Tb zpool, and it is casing kernel panics on my Solaris 10 280r (SPARC) server. The message I get on panic is this: panic[cpu1]/thread=2a100a95cc0: zfs: freeing free segment (offset=423713792 size=1024) This seems to come about when the zpool is being used or being scrubbed - about twice a day at the moment. After the reboot, the scrub seems to have

Dtrace and Performance Teams, I have the following IO Performance Specific Questions (and I''m already savy with the lockstat and pre-dtrace utilities for performance analysis.. but in need of details regarding specifying IO bottlenecks @ the controller or IO bus..) : **Q.A*> Determining IO Saturation bottlenecks ( */.. beyond service times and kernel contention.. )/ I''m

Does anyone has any ideas about this problem? 2008/1/15, ?? TaoJie <eulertao at gmail.com>: > > Hi all: > > I''m working on revealing system performance now. > My testing program is an infinite loop. Inside the loop, it will do some > mathematical opertaions and call function callee(), then go to the next > loop. > I install a alarm(30) in the program. It

I just had a quick play with gzip compression on a filesystem and the result was the machine grinding to a halt while copying some large (.wav) files to it from another filesystem in the same pool. The system became very unresponsive, taking several seconds to echo keystrokes. The box is a maxed out AMD QuadFX, so it should have plenty of grunt for this. Comments? Ian

I''m looking for a suggestion on a good way to hunt down the source of high context switching and mutex contentions... Is dtrace the way to go now, or should I stick with something like lockstat? Russ This is a 5 second interval for mpstat: CPU minf mjf xcal intr ithr csw icsw migr smtx srw syscl usr sys wt idl 16 0 0 1115 1241 206 9095 912 2420 7393 0 12105 68 25

Solaris and/or ZFS are badly confused about drive IDs. The "c5t0d0" names are very far removed from the real world, and possibly they''ve gotten screwed up somehow. Is devfsadm supposed to fix those, or does it only delete excess? Reason I believe it''s confused: zpool status shows mirror-0 on c9t3d0, c9t2d0, and c9t5d0. But format shows the one remaining Seagate

I''m an Oracle DBA, a dtrace noob, and I''m attempting to resolve an Oracle write performance problem on Solaris 10, Oracle 9iR2. The Oracle DBWR processes have poor write throughput writing to VxFS files. I suspect that the problem may be with POSIX readers/writer file locking. Ideally I''d like to identify, for a given DBWR process, readers/writer file lock contention

I have a Sony lib-162 tape library hooked up to an adaptec 39160 scsi controller. I''m running OpenSolaris / Indiana snv_98 with the CADP160 driver installed from a SXCE dvd (snv_99). When I boot without xvm, I can run "mt config" and see the configuration information for the first drive in the library. Under xvm, some scsi operations still work - I can access the changer, move

I have just recently (physically) moved a system with 16 hard drives (for the array) and 1 OS drive; and in doing so, I needed to pull out the 16 drives so that it would be light enough for me to lift. When I plugged the drives back in, initially, it went into a panic-reboot loop. After doing some digging, I deleted the file /etc/zfs/zpool.cache. When I try to import the pool using the zpool

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, Has anyone encountered the following error message, running Solaris 10 u8 in an LDom. bash-3.00# devfsadm devfsadm: write failed for /dev/.devfsadm_dev.lock: Bad exchange descriptor bash-3.00# zpool status -v rpool pool: rpool state: DEGRADED status: One or more devices has experienced an error resulting in data corruption. Applications may be affected. action: Restore the file in

Author: tomee Repository: /hg/zfs-crypto/gate Revision: 367993089b181886f94c88ffa5759d0626e95ad7 Log message: PSARC 2006/054 DTrace JNI Binding 6384263 PSARC 2006/054 DTrace JNI Binding Files: create: usr/src/lib/libdtrace_jni/Makefile create: usr/src/lib/libdtrace_jni/Makefile.com create: usr/src/lib/libdtrace_jni/amd64/Makefile create: usr/src/lib/libdtrace_jni/common/dtj_attr.c create:

There is a Slashdot discussion today titled "Cambridge Researcher Breaks OpenBSD Systrace". Slashdot anonymous member has a comment "Even Sun''s Dtrace might be vulnerable." I don''t think it is. Comments? Exploiting Concurrency Vulnerabilities in System Call Wrappers http://www.watson.org/~robert/2007woot/2007usenixwoot-exploitingconcurrency.pdf Abstract