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List:       opensolaris-dtrace-discuss
Subject:    Re: [dtrace-discuss] fbt with predicates and [O]Sol on VBox
From:       Jim Mauro <James.Mauro () Sun ! COM>
Date:       2009-05-18 22:21:20
Message-ID: 4A11DF60.50201 () sun ! com
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FYI - I just tried this in OpenSolaris 2008.11, running in a
Vbox (2.2) virtual machine. It's noisy without the predicate
for the fbt probes (naturally :^), but it doesn't hang.

(Vbox on a Mac host, FWIW).

Thanks,
/jim


Michael Ernest wrote:
> I've been playing with a follow script example and getting a system hang every \
> time. Turns out when I try: 
> syscall::read:entry /execname == "ls" / { self->tr = 1; }
> fbt::: {}
> syscall::read:return /self->tr / { self->tr = 0; }
> 
> I get (unusable) output.  But when I add /self->tr / to my fbt::: clause, it hangs \
> the instance every time. I've tried this on Sol u6, Sol u7, OSol b110, OSol \
> Nov2008, anywhere from 1-2 GB RAM. I don't a native Solaris instance available \
> today, although I have no reason to believe I'd see this issue on it.  
> Any help?
> 
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