search for: truss

G''Day Folks, I''ve finally typed up my classic DTrace demo, which I use to introduce people to DTrace (I delivered this at SOSUG#1), http://www.brendangregg.com/DTrace/dtracevstruss.html Here I create a fault and show the difficulty in analysing it using previous tools. Then I compare the impact of analysing the problem using both DTrace and truss. DTrace wins (a lot!). Thanks to the PAE guys from Adelaide for suggesting to run sar -c, it''s the icing on the cake. :)...

I am running a very simple multithreaded program (TestThread.C) which calls gethostbyname_r in several threads. My analysis of this program with both truss and DTrace suggest that is has a small leak. However, if I alter the program to have many more threads and run for a lot longer it never runs out of memory and does not carry on growing. Can anybody explain what I am missing in my analysis or if there are some bugs in both Dtrace and truss that I a...

...ace/local/lib/libz.a -rwxr-xr-x 1 bin bin 85600 Mar 10 17:26 /space/local/lib/libz.so -rwxr-xr-x 1 bin bin 85600 Mar 10 17:26 /space/local/lib/libz.so.1 -rwxr-xr-x 1 bin bin 85600 Mar 10 17:26 /space/local/lib/libz.so.1.1.3 Also, when I run ssh as root as truss -e -o truss.out ssh moni I get grep libz truss.out open("/space/local/lib/libz.so", O_RDONLY) = 4 I do not know how to trace ssh when as nonroot though. I get truss -e -o truss.out ssh moni ld.so.1: ssh: fatal: libz.so: open failed: No such file or directory truss: c...

This morning, I noticed in my security email, that my entire /usr/bin directory had setuid diff's set on them. I think I've been hacked. So I installed chkrootkit from ports and ran it. It showed not infected for everything, except NETSTAT. NETSTAT showed infected... I ran chkrootkit for another machine (at my office), and it showed not infected for everything. Both machines are

Author: ja97890 Repository: /hg/zfs-crypto/gate Revision: 4e8bdca5612d8e39ecb94db81ca5272fe9872d89 Log message: 6262586 truss should print data written/read for sendmsg/recvmsg Files: update: usr/src/cmd/truss/actions.c update: usr/src/cmd/truss/expound.c

Hi, i am experiencing a problem with ssh 3.0.2.p1 running on Solaris 2.8. Everything works fine with local users (i.e. with local passwd and shadow entries). With LDAP authenticated users, i obtain: treno at tao[!] -> ssh -v Segmentation Fault (core dumped) The probem is the same with 2.x releases. Thank you, Roberto Bertucci

...nning process works just fine. (ie) dtrace -n pid1234::malloc:entry''{@=count()}'' has no problem. I tried to look at Parallels during the hang using pid provider in OS X and I see it is doing a bunch of ioctl''s on /dev/vm-main From within Solaris if I start dtrace under truss, then I find the last thing truss was able to record is a bunch of preads. I have the output from truss if anyone is interested. (its 180K) This could not have happened at the worse time. I was before an important ISV showing off DTrace and how stable it is and it hangs on me! Any help on debuggi...

Hi all, I am installing a zone onto two different V445s running S10U4 and the zones are taking hours to install (about 1000 packages), that is, the problem is identical on both systems. A bit of trussing and dtracing has shown that the pkginstalls being run by the zoneadm install are making door_call calls to nscd that are taking very long, so far observed to be 5 to 40 seconds, but always in times divisible by 5 seconds (5, 10, 15, etc.), leading to the thought that it is one or more name servi...

On Apr 4, 2015, at 8:53 PM, Richard Flint <richard.flint at gmail.com> wrote: > I have used the truss command as directed. I have attached both the driver output and the last few sections of truss output leading to the hang. Both outputs end at the CTRL+C i pressed when i was forced to end the processes. > > Hope this is helpful. Please bear with me if i didn't run it with the right opti...

...20:28:01 shell sshd[72401]: Received SIGHUP; restarting. Jun 13 20:28:02 shell sshd[41220]: Server listening on 0.0.0.0 port 22. Jun 13 21:06:49 shell sshd[42072]: Accepted publickey for scott from 68.160.236.249 Obviously, I faked the IP for "bob". I consoled in this time and hooked up truss to the server PID. I was running: while true ; do /usr/bin/ssh shell.example.com; done; Thinking that if it were a file handle problem, I might accidentally get in if I caught it as an active user logged out. It was closing the connection as soon as it was made (TCP handshake). I have, umm, lo...

OK, so this may be a little off-topic, but here goes: The reason I switched to OpenSolaris was primarily to take advantage of ZFS''s features when storing my digital imaging collection. I switched from a pretty stock Linux setup, but it left me at one disadvantage. I had been using inotify under Linux to trigger a series of Ruby scripts that would do all the basic ingestion/setup for

...OpenSSH 5.1p1 on Solaris 9. The authentication is via PAM if that matters. # grep X11 sshd_config | sed '/^#/D' X11Forwarding yes X11DisplayOffset 10 X11UseLocalhost yes # Now I attach to my 'master' sshd and follow all children to look for any evidence of "DISPLAY": # truss -f -a -e -p 14923 2>&1 | grep DISPLAY I then fire up ssh -X from a client machine, login, and truss reports nothing. If I perform the EXACT same test against stock Solaris 9 sshd (also authenticating against PAM), DISPLAY shows up (in truss and in the shell) and X11 forwarding works fine....

Hi Samba world, Have been struggling with this for the past 10 days, we are running Samba 3.0.22 on VCS zone, we have end users saving files onto Samba mapped drive, and complained that it 5mins to save 300 files, now it takes 30 mins. There is recently a change in the topology. Before Enduser ----------- samba mapped -------------- server (local attached storage)

Hi Richard, Richard Robinson wrote: > I should add that I also used truss and saw the same ENOMEM error. I am on a 4Gb system with swap -l reporting > > swapfile dev swaplo blocks free > /dev/zvol/dsk/rpool/swap 181,1 8 4194296 4194296 > > and I was trying to follow the directions for increasing swap here: > http://www.solarisinter...

Hello, i386 Platform; FreeBSD v. 7.2 O/S I am experiencing repeated rsync failures, rsyncing from a remote site to which I have no access. >From the client side I can run truss to collect system calls truss -faedD -o truss.out -s 64 /usr/local/bin/rsync -avvv --contimeout=1200 --port=33444 ftp.wwwxxx.org::ftp . >> rsynclog & >From truss.out => 44755: 4492.350089813 0.000022629 read(4,"\M-4\M-4(\M-^\M-j\M^F\^\$\M^]\M^[\M-O2)TX]rbX\^]\M-{\M^B\M-sT&qu...

...ing our Samba installation from 2.2.5 to 3.0.25b, I found that Samba's performance was severely degraded. A 1 gig test file with random text in it would take about 2:15 to copy using the old 2.2.5 smbd, but the same file would take 5-6 minutes to copy with a freshly compiled version. I ran truss on smbd while the file copy was taking place, and found that the utime() call was taking up most of the system time. I then ran truss on the 2.2.5 smbd, and found that there were no utime() calls at all. I went to the archives, downloaded and built version 2.2.12, and found that the performanc...

...is a try - any idea how can I tell NUT to build against openusb instead of libusb? Regards, Richard On Sun, Apr 5, 2015 at 2:28 AM Charles Lepple <clepple at gmail.com> wrote: > On Apr 4, 2015, at 8:53 PM, Richard Flint <richard.flint at gmail.com> wrote: > > I have used the truss command as directed. I have attached both the driver > output and the last few sections of truss output leading to the hang. Both > outputs end at the CTRL+C i pressed when i was forced to end the processes. > > Hope this is helpful. Please bear with me if i didn't run it with the &...

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?

...f the ssh programs I get "fatal: PRNG initialisation failed -- exiting" Now, I have looked through the mailing lists and have seen some mention that this indicates it can't open the ssh_prng_cmds file, which entropy.c also seems to indicate the problem is. However, this snippet from truss would indicate it opened it fine and started reading it: open("/usr/local/etc/ssh_prng_cmds", O_RDONLY) = 3 brk(0x000E6DB8) = 0 brk(0x000E8DB8) = 0 fstat64(3, 0xFFBEECD8) = 0 brk(0x000E8DB8)...

Hello, with OpenSSH_2.3.0p1 running in HP-UX 11.00 I noticed that the "SD commands" (like "swcopy") produce the following error when being logged in via SSH: ERROR: RPC exception: "Who are you failed (dce / rpc)" 11/29/00 11:20:18 MET Ideas? Regards, Ulrich P.S. Not subscribed to the list