similar to: "stuck" in kmdb due to dtrace breakpoint()

Hi, is it somehow possible to use Dtrace for error injection in a kernel module? Something like changing: - function return value - value of a register If not, can it be implemented? I can do that via kmdb, but I need Dtrace for the time synchronization - chill() action. I can not combine Dtrace & kmdb: dtrace: failed to initialize dtrace: DTrace cannot be used when kernel debugger

Author: bmc Repository: /hg/zfs-crypto/gate Revision: 213bfe03af413cdf71c523fb076aaa65a6306a7e Log message: 6256581 System got a hang or a panic with dtrace+kmdb 6264573 unanchored dtrace_getpcstack is rather imprecise toward function end 6289517 dtrace doesn''t like fd_intr anymore 6291378 dtrace helpers can interfere with the use of kmdb 6295554 dtrace doesn''t report

Howdy, I installed Nevada build 49 in a parallels VM on my intel mac mini, and when I run the following DTrace script: $ cat follow.d #pragma option D flowindent; pid$target:::entry, pid$target:::return {} $ cat format.cmds disk 0 exit $ dtrace -s follow.d -o follow.out -c "/usr/sbin/format -f format.cmds" dtrace: script ''follow.d'' matched 13641 probes The system

Hi, I am trying to trace some functions that are executed at detach time, and it seems that just having dtrace around to instrument the module is causing a short circuit, whereas modunload will return (device busy). I understand that this makes sense, but how can I get around this if I want to trace stuff at detach time? Thanks, --S

Adding -kd to extra line drops me to kmdb :- root@ServerJaunty:/home/boris/nevada# xm create -c osol.install Using config file "./osol.install". Started domain osol.install (id=4) Loading kmdb... Welcome to kmdb Loaded modules: [ unix krtld genunix ] [0]> I want patch kernel like it happens when adding to /etc/system:- set xnf:xnf_cksum_offload = 0

In the past I used a tool called WHAM to collect system and process information from Solaris. It looks like dtrace could replace WHAM. Below are the counters that I got from WHAM. I got cumulative and instantaneous counts. Is there some existing dtrace script that will give me all of these plus even more? Also, WHAM was distributed, that is it could collect these counters from multiple

Disabling checksum offloading at OSOL DomU via kmdb at intial boot :- ( -kd at extra line):- root@ServerJaunty:/home/boris/nevada# xm create -c osol.install Using config file "./osol.install". Started domain osol.install (id=6)                                   Loading kmdb... Welcome to kmdb Loaded modules: [ unix krtld genunix ] [0]> ::bp xnf`_init [0]> :c v3.4.1-rc7 chgset

I''m wondering if I should file a bug against this or is this just a case of a user doing something stupid :) I ran the following script on my desktop: #!/usr/sbin/dtrace -s pid9276:::entry { @counting[probefunc] = count(); } And my Xsession immediately crashed and through me back to the login screen. My OS is 5.11 snv_50 i86pc i386 i86pc with a dual core amd chip and 2G or

hello anyone faced this error before? dtrace: processing aborted: Abort due to systemic unresponsiveness I used iosnoop -evD > iosnoop.log thanks. __________________________________________________________ Sent from Yahoo! Mail - a smarter inbox http://uk.mail.yahoo.com

Author: meem Repository: /hg/zfs-crypto/gate Revision: 4d618a4110ff44c57939c29a3a8a198be2ec8352 Log message: 6336683 address::queue -v blows up kmdb and mdb 6338969 netstrategy needs to use SIOCGLIFFLAGS and friends to see IFF_VIRTUAL 6339847 ip_rcm incorrectly parses interface names 6340643 ip_rcm is lugging around dead code 6340645 ip_rcm tracks needless phyint state Files: update:

Hi, Following "anonymous tracing" chapter, I wanna trace kmem_init(), but after reboot, I can''t get anything, why? Here is my short script kmem_init.d: #!/usr/sbin/dtrace -s fbt::kmem_init:entry { stack(); } then I just use: #dtrace -AFs kmem_init.d #reboot #dtrace -ae < got nothing here> Thanks, -Alex This message posted from opensolaris.org

Hi, I have setup an old Compaq Proliant DL580 with 2 xeon @700MHz 2Gb RAM two SmartArray 5300 controllers and 12 drives in an array enclosure. I am running the latest opensolaris update bfu''ed from binaries since I could not build from source. I am controlling the drives with the cpqary3 driver (Solaris 10) from HP. Initially the array had 7 drives and I created a raidz zfs pool

Hi, I am adding DTrace probes within NFS v3 client. In my current implementation, I use some tsd_*() functions and kmem_zalloc() function. These functions might be heavy and affect the performance. I want to call this function only when DTrace is running or the DTrace probes are enable. So is there a way to check DTrace is running or DTrace probe is enabled? Regards, Danhua

after cleaning up a bunch or selinux alerts, I update and wham, clamav/clamd/clamav-db make me assert contexts again to /var/clamav like... chcon -t clamd_t clamav -R which temporarily solves the problem but it would be better if it were policy and not file contexts. So I search and see for some reason, /var/clamav is ignored... # grep clam /etc/selinux/targeted/contexts/files/file_contexts

I have a number of systems running solaris10 and i see the package and binary for dtrace installed however whenever we try to run anything we get this error dtrace: failed to initialize dtrace: DTrace device not available on system the only system in which i dont have this error is the development server that has the full solaris 10 install while others are minimized, do i need additional

hello, Is there some known bug in ices 0.2.2 or icecast 1.3.11 which causes the source to be kicked? In my log files I find the same thing ... some stupid script kiddie makes ten connections from the same ip and *wham* the source is kicked, no more streaming. however, the server itself doesn't crash. t. --- >8 ---- List archives: http://www.xiph.org/archives/ icecast project

The open solaris dtrace page (http://www.opensolaris.org/os/community/dtrace/) has a bad link to the DTrace Guide(http://docs.sun.com/db/doc/817-6223). This message posted from opensolaris.org

Hi Max/DTrace list, > 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: > > # ./strrput.d 0xd595a6c0 <-- this is a vnode for a socket > ftp is using (not important here) > dtrace: failed to compile script ./strrput.d: line 7: >

Hi All, Can I get Dtrace command, which is useful for regular system administration like performance issue. Advance Thanks Muthu -- This message posted from opensolaris.org

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