From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <4C2A74C0.2000909@domain.hid> Date: Wed, 30 Jun 2010 00:33:36 +0200 From: Jan Kiszka MIME-Version: 1.0 References: <8EA2C2C4116BF44AB370468FBF85A777016574B413@domain.hid> <4C2A078E.80009@domain.hid> <8EA2C2C4116BF44AB370468FBF85A7770165815E06@domain.hid> In-Reply-To: <8EA2C2C4116BF44AB370468FBF85A7770165815E06@domain.hid> Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enig9B30BD9357762589DB4A4D65" Sender: jan.kiszka@domain.hid Subject: Re: [Xenomai-help] machine hangs running oprofile on xenomai kernel List-Id: Help regarding installation and common use of Xenomai List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: "Sydir, Jerry" Cc: "xenomai@xenomai.org" This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enig9B30BD9357762589DB4A4D65 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable [please do not top-post] Sydir, Jerry wrote: > Hi Jan, >=20 > Thanks for your reply. I tried loading the oprofile module with timer=3D= 1 and oprofile seems to work (doesn't hang the system and spits out some = results). So it appears that the use of NMIs are the problem. Do you have= any suggestions on what to try next? Now someone would have to dig into the code path taken by oprofile during NMI handling to find the reason for the lock-up. Did you have any real-time jobs running when starting the profiling, or was Xenomai idle? On the other hand, oprofile is a legacy interface. It probably makes more sense to try and, if required, fix perf instead. Jan --------------enig9B30BD9357762589DB4A4D65 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.9 (GNU/Linux) Comment: Using GnuPG with SUSE - http://enigmail.mozdev.org iEYEARECAAYFAkwqdMYACgkQitSsb3rl5xQz7QCgtqvI6gMLmW3qYSB3dFAhrlNM +dgAoJoy85mDx8tL2cUV5iY11wxdHvKz =VhK5 -----END PGP SIGNATURE----- --------------enig9B30BD9357762589DB4A4D65--