On Thu, Aug 18, 2005 at 01:19:29AM +0800, CHao-Hong Guo wrote:> > fbt::: > /self->trace/ > { > }THAT''s a lot of active probes. Are you perhaps running into memory issues? Dan
hi, guys,
I write a simple script as follow,
#!/usr/sbin/dtrace -Fs
syscall::ioctl:entry
/execname == "test.exe"/
{
self->trace = 1;
printf("fd: %d", arg0);
}
fbt:::
/self->trace/
{
}
syscall::ioctl:return
/execname == "test.exe"/
{
self->trace = 0;
}
When I run this script on my laptop (NEC Versa1000, snv_19),
the sytem is frozen.
could you tell me what ''s wrong with this script?
thanks,
Minskey
Dan McDonald ???:>On Thu, Aug 18, 2005 at 01:19:29AM +0800, CHao-Hong Guo wrote: > > >>fbt::: >>/self->trace/ >>{ >>} >> >> > >THAT''s a lot of active probes. > >Are you perhaps running into memory issues? > >I don''t know. if so, what should I do? thanks>Dan > >
On Thu, Aug 18, 2005 at 01:19:29AM +0800, CHao-Hong Guo wrote:> hi, guys, > > I write a simple script as follow, > > > #!/usr/sbin/dtrace -Fs > > > syscall::ioctl:entry > /execname == "test.exe"/ > { > self->trace = 1; > printf("fd: %d", arg0); > } > > fbt::: > /self->trace/ > { > } > > syscall::ioctl:return > /execname == "test.exe"/ > { > self->trace = 0; > } > > > When I run this script on my laptop (NEC Versa1000, snv_19), > the sytem is frozen.Yikes -- that''s bad. What do you mean by "frozen" exactly? Does the system reboot? Does DTrace work at all on this machine? (That is, could you confirm that "dtrace -n BEGIN''{exit(0)}''" works?) Are you running KMDB? If so, does it happen when KMDB is not running? And can you send us the output of modinfo?> could you tell me what ''s wrong with this script?Nothing''s wrong with the script -- that should work. (And indeed, many of run scripts like that all the time on latest bits...) - Bryan -------------------------------------------------------------------------- Bryan Cantrill, Solaris Kernel Development. http://blogs.sun.com/bmc
Bryan Cantrill ???:>On Thu, Aug 18, 2005 at 01:19:29AM +0800, CHao-Hong Guo wrote: > > >>hi, guys, >> >>I write a simple script as follow, >> >> >>#!/usr/sbin/dtrace -Fs >> >> >>syscall::ioctl:entry >>/execname == "test.exe"/ >>{ >>self->trace = 1; >>printf("fd: %d", arg0); >>} >> >>fbt::: >>/self->trace/ >>{ >>} >> >>syscall::ioctl:return >>/execname == "test.exe"/ >>{ >>self->trace = 0; >>} >> >> >>When I run this script on my laptop (NEC Versa1000, snv_19), >>the sytem is frozen. >> >> > >Yikes -- that''s bad. What do you mean by "frozen" exactly? Does the >system reboot? Does DTrace work at all on this machine? (That is, >could you confirm that "dtrace -n BEGIN''{exit(0)}''" works?) Are you >running KMDB? If so, does it happen when KMDB is not running? And can >you send us the output of modinfo? > > >No response, the keyboard, mouse, all. I have to press power botton to shutdown my system. It seems that Dan is right, who suspects that my system memory is exhausted. When I change fbt::: /self->trace/ {} to, fbt:scsi:: /self->trace/ {} fbt:sd:: /self->trace/ {} it works well.>>could you tell me what ''s wrong with this script? >> >> > >Nothing''s wrong with the script -- that should work. (And indeed, many >of run scripts like that all the time on latest bits...) > > - Bryan > >-------------------------------------------------------------------------- >Bryan Cantrill, Solaris Kernel Development. http://blogs.sun.com/bmc > >