search for: stringof

...Timestamp gid uid pid ppid execname function current directory file name\n\n"); } syscall::open:entry, syscall::creat:entry, syscall::open64:entry, syscall::creat64:entry, syscall::unlink:entry, syscall::rename:entry /strstr(stringof(copyinstr(arg0)), $1) != NULL/ { printf("%Y %5d %5d %5d %5d %-12s %-10s %25s %s\n", walltimestamp, gid, uid, pid, ppid, execname, probefunc, cwd, stringof(copyinstr(arg0))); } The script is invoked with: ./lsfacc ''&qu...

...This is on OpenSolaris 2009.06. This is quite easy to reproduce. The script is the following, where arg1 is not a string but a pointer to the key from the command and arg2 is the length of that key. memcached*::command-get / (signed int) arg3 != -1 / { printf("get %s, FOUND KEY\n", stringof(copyin(arg1, arg2))); } memcached*::command-get / (signed int) arg3 == -1 / { printf("get %s, NOT FOUND\n", stringof(copyin(arg1, arg2))); } memcached*::command-add / (signed int) arg3 != -1 / { printf("add %s, FOUND KEY\n", stringof(copyin(arg1, arg2))); } memcached*::c...

I have a clause that look like this: syscall::write:entry /execname == "ntpd" && self->recspec/ { speculate(self->recspec); printf(" fd=%d buf=%d\n%s",arg0,arg2, stringof(copyin(arg1,arg2-1))); } The ntpd program always write a \n trminated string in this context, so I used the "arg2-1" to drop the \n. This works fine about 90% of the time, but every once in a while, the printf prints out more data than arg2 specified. It gets the expected data okay, but...

I''d like to be able to dynamically read external configuration files within a dtrace script. I know dtrace allows inclusion of C header files but only at the preprocessing stage. What we need to do is dynamically enable/disable probes based on current application settings. I''d rather not have a bunch of independant scripts running and being started and killed whenever the

...ID 1574 (ID 23867: fbt:ip:ip_loopback_src_or_dst:return): invalid address (0x30) in action #2 at DIF offset 48 dtrace: error on enabled probe ID 769 (ID 25479: fbt:ip:ilm_lookup_ill:return): invalid address (0x52) in action #2 at DIF offset 48 ... and all is not well. I''ve also tried stringof(arg0) but the result is similar. By way of testing, @home[probefunc] worked fine. Is this a bug (fixed in nevada?) or am I just not supposed to do this? Darren

...ve error on nevada builds 14, 17 and 19 (the only builds I have access to). I set dtrace_err_verbose=1 but didn''t get any more information. #!/usr/sbin/dtrace -s syscall::open:entry { self->spec = speculation(); speculate(self->spec); printf("%s", stringof(copyinstr(arg0))); } syscall::open:return /self->spec && errno != 0/ { commit(self->spec); self->spec = 0; } syscall::open:return /self->spec && errno == 0/ { discard(self->spec); self->spec = 0; } Anyone got any ideas whats goin...

Hi All, One of the customer is seeing the following error messages. He is using a S10U1 system with all latest patches. Dtrace script is attached. I am not seeing these error messages on S10U2 system. What could be the problem? Thanks, Gangadhar. ------------------------------------------------------------------------ rroberto at njengsunu60-2:~$ dtrace -AFs /lib/svc/share/kcfd.d dtrace:

hi fnds, i want to print the filenames on which the stat system call is acting when a stat system call is invoked. can anyone can help me this regard. Thanks jeevan

...:remain-cpu /self->preempt/ { self->preempt = 0; } sched:::off-cpu /self->preempt/ { /* * If we were told to preempt ourselves, see who we ended up giving * the CPU to. */ @[stringof(args[1]->pr_fname), args[0]->pr_pri, execname, curlwpsinfo->pr_pri] = count(); self->preempt = 0; } END { printf("%30s %3s %30s %3s %5s\n", "PREEMPTOR", "PRI","||&...

hi, i need to find out no of times a file has been opened,but not yet closed. i mean if a file has been opened for 2 times ,one for reading and another for writing and the file has not been closed,the script should display the count of total opens and also to check wheather it has been closed r not. This message posted from opensolaris.org

...uot;string" == "int (*)()" Which is at: fbt::zil_lwb_write_start:entry /OPT_pool == 0 || POOL == args[0]->zl_dmu_pool->dp_spa->spa_name/ { So it looks like "args[0]->zl_dmu_pool->dp_spa->spa_name" returns a different type. We can avoid this by using the stringof function. But then in the end it fails with dtrace: error on enabled probe ID 2 (ID 20429: fbt:zfs:zil_lwb_write_start:entry): invalid address (0x32736d3432636d) in predicate at DIF offset 44 What are we missing? Thanks for your help. Eric

...cause, of course) Thanks for any pointers, -ps intr.d from the SDT provider chapter in the guide. ------------------------------------------------- interrupt-start { self->ts = vtimestamp; } interrupt-complete /self->ts/ { this->devi = (struct dev_info *)arg0; @[stringof(`devnamesp[this->devi->devi_major].dn_name), this->devi->devi_instance] = quantize(vtimestamp - self->ts); } output on running: ------------------ bash-3.00# dtrace -s ./intr.d > /tmp/dt.out 2>&1 bash-3.00# more /tmp/dt.out dtrace: script ''./intr.d&...

...gt;sd_vnode == (struct vnode *)$1 > && args[1]->b_datap->db_type == M_DATA > / > { > printf("strrput mp = %p\n", args[1]); > printf("mp->b_rptr = %*.*s\n", > args[1]->b_wptr-args[1]->b_rptr, > args[1]->b_wptr-args[1]->b_rptr, stringof(args[1]->b_rptr)); > } > > ----------------------------------------------------- > > At any rate, without the -C, I can''t use #include <sys/stream.h>. > Without the #include <sys/stream.h>, I can''t use the M_DATA. > As it is, I get the following...

Please reply to david.curtis at sun.com ******** Background / configuration ************** zpool will not create a storage pool on fibre channel storage. I''m attached to an IBM SVC using the IBMsdd driver. I have no problem using SVM metadevices and UFS on these devices. List steps to reproduce the problem(if applicable): Build Solaris 10 Update 2 server Attach to an external

Hi. I would like to print out a field of a vnode, but the argument to the function is of type vnode_t **. If I set "this->vpp" to arg2 in an entry function to zfs_lookup(), I''d like to retrieve the value of one of the fields of *(this->vpp) in the return function. Something like the below (but the syntax below is not right): printf("zfs_lookup:

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

Hi, I am tracking down a problem and would like to know how I can follow a forked process with my dtrace script, or how I can trace a dynamic library. Here is the problem. I am tracing dtlogin, and specifically I am trying to determine what error libpkcs11`<routine> is returning. It turns out dtlogin forks a lot of processes, and I believe the second forked process is the one that winds

This may not be a ZFS issue, so please bear with me! I have 4 internal drives that I have striped/mirrored with ZFS and have an application server which is reading/writing to hundreds of thousands of files on it, thousands of files @ a time. If 1 client uses the app server, the transaction (reading/writing to ~80 files) takes about 200 ms. If I have about 80 clients attempting it @ once, it can

FYI, I posted a blog a few days ago about a DTrace provider for NFS that is currently in development: http://blogs.sun.com/roller/page/samf?entry=a_dtrace_provider_for_nfs Let''s discuss any questions, comments, etc. here. I also advertised this on nfs-discuss at opensolaris.org. Naturally, I would expect the discussion here to be more on the specifics of DTrace, and the