Date: Sun, 18 Sep 2011 16:46:01 +0300 From: Mikolaj Golub <trociny@freebsd.org> To: Anton Yuzhaninov <citrin@citrin.ru> Cc: freebsd-current@freebsd.org Subject: Re: truss Message-ID: <864o0adkva.fsf@kopusha.home.net> In-Reply-To: <j4pgu9$m94$1@dough.gmane.org> (Anton Yuzhaninov's message of "Wed, 14 Sep 2011 06:17:45 %2B0000 (UTC)") References: <4E5E46A4.3060705@citrin.ru> <4E6A99A9.1000204@delphij.net> <j4pgu9$m94$1@dough.gmane.org>
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On Wed, 14 Sep 2011 06:17:45 +0000 (UTC) Anton Yuzhaninov wrote to Xin LI: AY> On Fri, 09 Sep 2011 15:56:41 -0700, Xin LI wrote: XL>> -----BEGIN PGP SIGNED MESSAGE----- XL>> Hash: SHA256 XL>> XL>> On 08/31/11 07:35, Anton Yuzhaninov wrote: >>> It seems to be truss(1) is broken on current >>> >>> :~> truss /bin/echo x x truss: can not get etype: No such process >>> >>> FreeBSD 9.0-BETA1 #0 r224884M i386 >>> >>> from ktrace of turss >>> >>> 3162 truss CALL >>> __sysctl(0xbfbfea00,0x4,0xbfbfe9e0,0xbfbfea10,0,0) 3162 truss >>> SCTL "kern.proc.sv_name.3163" 3162 truss RET __sysctl -1 >>> errno 3 No such process XL>> XL>> Can't seem to be reproducable here, did I missed anything? (note that XL>> you may need a full world/kernel build). XL>> AY> Problem still here after svn up and rebuild world/kernel AY> :~> ktrace -t+ truss /usr/bin/true AY> truss: can not get etype: No such process Could you please run ktrace with -i option? The behavior is like if ptrace(PT_TRACE_ME) failed in the child by some reason. Unfortunately, truss does not check this. AY> Full ktrace: AY> http://dl.dropbox.com/u/8798217/tmp/truss_ktrace.txt AY> FreeBSD 9.0-BETA2 #1 r225504M AY> i386 AY> Kernel config is not GENERIC - main difference - DTrace added: AY> http://dl.dropbox.com/u/8798217/tmp/kernconf.txt AY> -- AY> Anton Yuzhaninov AY> _______________________________________________ AY> freebsd-current@freebsd.org mailing list AY> http://lists.freebsd.org/mailman/listinfo/freebsd-current AY> To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd.org" -- Mikolaj Golub
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