Re: [dtrace-discuss] Why am I getting drops?

2008-04-21 Thread Lars Bruun-Hansen
From what I understand on this thread : http://forum.java.sun.com/thread.jspa?threadID=5133053tstart=30 there is a hardcoded limit in DTrace of 16M for the buffer size when you are not running as root. Why, why, why ?? -- This message posted from opensolaris.org

Re: [dtrace-discuss] RES: Process in LCK / SLP (Please)

2008-04-21 Thread przemolicc
On Fri, Apr 18, 2008 at 02:40:15PM -0400, Jonathan Adams wrote: On Apr 18, 2008, at 1:03 PM, Kleyson Rios wrote: Hi przemol, Bellow output of plockstat for malloc and libumem. Both many locks. Why changing to libumem I didn't get less locks ? You're looking at Mutex hold

Re: [dtrace-discuss] Why am I getting drops?

2008-04-21 Thread Adam Leventhal
On Mon, Apr 21, 2008 at 12:33:47AM -0700, Lars Bruun-Hansen wrote: there is a hardcoded limit in DTrace of 16M for the buffer size when you are not running as root. Why, why, why ?? We don't want to let non-root users exhaust system resources. A root user can change this by modifying

Re: [dtrace-discuss] whatfor.d -- where's null pointer?

2008-04-21 Thread James McIlree
On Apr 21, 2008, at 11:00 AM, Adam Leventhal wrote: Either we need to use some temporary, probe-local variable (one that can't conflict with a user-defined variable), or we need to perform some element of optimization to the generated DIF. I've filed this bug: 6691541

Re: [dtrace-discuss] whatfor.d -- where's null pointer?

2008-04-21 Thread Nicolas Williams
On Mon, Apr 21, 2008 at 11:00:29AM -0700, Adam Leventhal wrote: So curlwpsinfo-pr_stype can work and later fail. Looking at the translator for that field we see that it looks like this: pr_stype = T-t_sobj_ops ? T-t_sobj_ops-sobj_type : 0; This compiles to this DIF code: [...]

Re: [dtrace-discuss] whatfor.d -- where's null pointer?

2008-04-21 Thread Adam Leventhal
On Mon, Apr 21, 2008 at 01:54:16PM -0500, Nicolas Williams wrote: In the world of LISP macros the macro writer would gensym a local variable (probe-local in this case) to deal with this sort of issue. Perhaps the DTrace translator facility needs a probe-local gensym feature. Indeed, many

Re: [dtrace-discuss] whatfor.d -- where's null pointer?

2008-04-21 Thread James McIlree
On Apr 21, 2008, at 1:04 PM, Adam Leventhal wrote: On Mon, Apr 21, 2008 at 11:45:25AM -0700, James McIlree wrote: Either we need to use some temporary, probe-local variable (one that can't conflict with a user-defined variable), or we need to perform some element of optimization to the