Date: Sun, 15 Apr 2012 21:16:56 +0200 From: Alexander Leidinger <Alexander@Leidinger.net> To: Alexander Best <arundel@freebsd.org> Cc: freebsd-emulation@freebsd.org Subject: Re: [PATCH] pipe2 for Linuxulator Message-ID: <20120415211656.000053b9@unknown> In-Reply-To: <20120415190408.GA61246@freebsd.org> References: <20120415101157.GA67049@freebsd.org> <20120415112308.GA77985@freebsd.org> <20120415134444.000005cc@unknown> <20120415115112.GA83717@freebsd.org> <20120415143441.00000948@unknown> <20120415130306.GA95208@freebsd.org> <20120415163059.0000715d@unknown> <20120415144155.GA15993@freebsd.org> <20120415181613.GA52958@freebsd.org> <20120415205302.00005855@unknown> <20120415190408.GA61246@freebsd.org>
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On Sun, 15 Apr 2012 19:04:08 +0000 Alexander Best <arundel@freebsd.org> wrote: > On Sun Apr 15 12, Alexander Leidinger wrote: > > On Sun, 15 Apr 2012 18:16:13 +0000 Alexander Best > > <arundel@freebsd.org> wrote: > > > also...even after installing a fresh kernel and world with dtrace > > > enabled, the "check_error.d" and "trace_futexes.d" fail and > > > sometimes even render the flash instance unusable. > > > > I assume with unusable you mean not fast enough. Well... buy a > > faster CPU. No, just kidding. Depending on what a D script does and > > how many probes are enabled in the D script, it is not unexpected > > that the system slows down. As told above, the scripts show what is > > possible. For real debugging you may want to use stripped down > > versions. > > no actually. what i meant by "unusable" is that the d-scripts > themself crash the flash instances. Uhm... this is unexpected. DTrace disables destructive actions by default, and I do not activate them. Maybe some timing-sensitive code in the flash-player which does not handle the case that some parts can take longer than expected? I assume there is not bug in DTrace itself. There could be a bug in my patch, but I would assume it is not a heisen-bug as described here (the probes are handled by DTrace-macros, just the variables which are provided to D scripts are different from other probes). Bye, Alexander. -- http://www.Leidinger.net Alexander @ Leidinger.net: PGP ID = B0063FE7 http://www.FreeBSD.org netchild @ FreeBSD.org : PGP ID = 72077137
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