Date: Fri, 10 Sep 2010 19:55:18 -0400 From: Alexander Kabaev <kabaev@gmail.com> To: Garrett Cooper <gcooper@FreeBSD.org> Cc: Yuri <yuri@rawbw.com>, freebsd-hackers@freebsd.org Subject: Re: Why I can't trace linux process's childs with truss? Message-ID: <20100910195518.4d35b3b1@kan.dnsalias.net> In-Reply-To: <AANLkTik-C_d%2BXs0Ov6Z1MU0y67WuiAmU3oFa3HDis=_i@mail.gmail.com> References: <4C8A81D9.5020905@rawbw.com> <AANLkTik-C_d%2BXs0Ov6Z1MU0y67WuiAmU3oFa3HDis=_i@mail.gmail.com>
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--Sig_/346t9.Yi/zk/5x/4F7CjMhz Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable On Fri, 10 Sep 2010 14:15:17 -0700 Garrett Cooper <gcooper@FreeBSD.org> wrote: > On Fri, Sep 10, 2010 at 12:07 PM, Yuri <yuri@rawbw.com> wrote: > > I am trying to get the log of all system calls that skype makes > > with truss -f /usr/local/share/skype/skype > > For some reason the resulting log only has the leading process > > calls and nothing from it's 8 childs. > > Truss doesn't show any 'cloned' processes. Is this a bug in truss > > that it doesn't follow 'cloned' processes? > > > > Is there any workaround or other way I can debug skype? strace > > doesn't work on amd64. > > I am primarily interested why it can't read /dev/video0 device, > > created by webcamd. >=20 > It doesn't look like ptrace support has been added into the > linuxulator, yet.. but I could be wrong. > -Garrett You are. ptrace is supported by linuxulator for a while now. The originator problem is likely because he is trying truss, which is not Linux-aware. ktrace/linux_kdump combo should work. --=20 Alexander Kabaev --Sig_/346t9.Yi/zk/5x/4F7CjMhz Content-Type: application/pgp-signature; name=signature.asc Content-Disposition: attachment; filename=signature.asc -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.16 (FreeBSD) iD8DBQFMisVqQ6z1jMm+XZYRAiC0AJ9CbSOMFm3VUgVkzJUqgdE4MbYFsQCfZ6zv lIw3GdWaaF9/rQQ4QmAItkI= =vmeG -----END PGP SIGNATURE----- --Sig_/346t9.Yi/zk/5x/4F7CjMhz--
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