Date: Thu, 19 Mar 2015 21:49:17 -0700 From: Mark Johnston <markj@FreeBSD.org> To: Mike Tancsa <mike@sentex.net> Cc: FreeBSD-STABLE Mailing List <freebsd-stable@freebsd.org> Subject: Re: dtrace on RELENG9 possible ? Message-ID: <20150320044917.GA9090@raichu> In-Reply-To: <550B2508.2040908@sentex.net> References: <550B2508.2040908@sentex.net>
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On Thu, Mar 19, 2015 at 03:35:36PM -0400, Mike Tancsa wrote: > Anyone know how to get dtrace working on RELENG9 ? When I go to load the > klds, I get the error > > # kldload dtraceall > kldload: an error occurred while loading the module. Please check > dmesg(8) for more details. > > # dmesg | tail -5 > linker_load_file: Unsupported file type > KLD profile.ko: depends on cyclic - not available or version mismatch > linker_load_file: Unsupported file type > KLD dtraceall.ko: depends on profile - not available or version mismatch > linker_load_file: Unsupported file type > > if I try and load profile, or cyclic, I get > > KLD profile.ko: depends on cyclic - not available or version mismatch > linker_load_file: Unsupported file type > link_elf_obj: symbol cyclic_clock_func undefined > linker_load_file: Unsupported file type > link_elf_obj: symbol cyclic_clock_func undefined > linker_load_file: Unsupported file type > > Googling around this seems to be a known problem going back some time > and there are various patches posted, but I am not sure what the best > way to proceed is ? This is only for a test box so I can try and better > understand why RELENG9 is so much faster than RELENG10 for my particular > applications. Could you point me to one of these threads? There are several that refer to cyclic_clock_func, but they have to do with build failures, which isn't what you're seeing. > This is releng9 from today after a fresh buildworld/kernel I'm not quite sure what you mean by releng9. Is it 9.0? 9.3? Does your kernel configuration file contain "options KDTRACE_HOOKS"? Thanks, -Mark
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