From mboxrd@z Thu Jan 1 00:00:00 1970 From: Gregory Haskins Subject: Re: 2.6.29-rt1+ irqbalance = OOPS Date: Fri, 27 Mar 2009 12:49:46 -0400 Message-ID: <49CD03AA.4030000@novell.com> References: <49CCFBCA.6050702@gareus.org> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enig36DD2609EF8214909B5FC198" Cc: linux-rt-users@vger.kernel.org, Thomas Gleixner To: Robin Gareus Return-path: Received: from victor.provo.novell.com ([137.65.250.26]:49271 "EHLO victor.provo.novell.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754064AbZC0Qrc (ORCPT ); Fri, 27 Mar 2009 12:47:32 -0400 In-Reply-To: <49CCFBCA.6050702@gareus.org> Sender: linux-rt-users-owner@vger.kernel.org List-ID: This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enig36DD2609EF8214909B5FC198 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Robin Gareus wrote: > Hello, > > Starting the irqbalance daemon ( http://www.irqbalance.org/ ) on > 2.6.29-rt1 causes the system to OOPS and freeze. irqbalance works fine > with previous realtime kernels (2.6.24.7-rt27). > > The OOPS seems to be caused by the PID of the [timer] IRQ-1 This in of itself might be part of the problem. I didn't think the timer was supposed to be threaded. Thomas? > . However the > OOPS message is too long and I can't read the beginning lines on the > terminal. The system hangs so I can't scroll back and it's not written > to any log. SysRq does also not work after the OOPS. > > A bit off topic, but how can I capture those OOPSes? > =20 A serial-console or netconsole is generally better than a VT for catching the whole output. > I could get a larger screen and a digital camera ;) The lkcd.sf.net > patch does not apply to 2.6.29. Running a realtime kernel in qemu does > not make much sense, although it may be sufficient to reproduce this OO= PS. > Is there a way to use USB as serial console using a hub and two > computers? I think so, though I have never tried. > I guess I'll need a dongle or sth. Besides would a printk() > to a serial port work even if some IRQ handler hangs? > =20 Usually yes. Of course, it depends on what is actually broken, but *most* issues still allow the printks to work. Good luck! -Greg --------------enig36DD2609EF8214909B5FC198 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 iEYEARECAAYFAknNA6oACgkQlOSOBdgZUxmpaACfaNgXWz8kCsD1pkv6ixytPaCO EqUAn3RpAiaJrNRi+OjEzXAhgtDtmYsp =qIX4 -----END PGP SIGNATURE----- --------------enig36DD2609EF8214909B5FC198--