From: Tim Blechmann Subject: Re: ext4: smp_processor_id() in preemptible Date: Fri, 27 Nov 2009 11:32:38 +0100 Message-ID: <4B0FAAC6.30906@klingt.org> References: <4AC9C4FD.7080606@klingt.org> <8C8865ED624BB94F8FE50259E2B5C5B304593DAB98@palmail03.lsi.com> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enigB66E6D3EFAF7D3F14E47A865" Cc: "linux-kernel@vger.kernel.org" , "linux-ext4@vger.kernel.org" To: "Leyendecker, Robert" Return-path: In-Reply-To: <8C8865ED624BB94F8FE50259E2B5C5B304593DAB98@palmail03.lsi.com> Sender: linux-kernel-owner@vger.kernel.org List-Id: linux-ext4.vger.kernel.org This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enigB66E6D3EFAF7D3F14E47A865 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable > I have similar crash, but probably different cause-vector, posted on th= is list, fedora bugzilla, rt-users but no response so far from anyone. Di= d you find any work around? I tried looking at smp code for hints on pro= blem it looks like in my case it could be trying to reschedule work on di= fferent CPU at time of crash. However, I admit that I could be way, way o= ff on that cause. In my case, if I hammer my network interface with packe= ts while another app is reading packets, my host locks up and clients are= reporting dest unreachables.=20 >=20 > I don't think I have the problem in non-rt kernel. Have you tried booti= ng without smp support? i haven't tried to reproduce it since then ... it occurred, when i was doing some heavy io tasks ... tim --=20 tim@klingt.org http://tim.klingt.org Nothing exists until or unless it is observed. An artist is making something exist by observing it. And his hope for other people is that they will also make it exist by observing it. I call it 'creative observation.' Creative viewing. William S. Burroughs --------------enigB66E6D3EFAF7D3F14E47A865 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) iEYEARECAAYFAksPqsYACgkQdL+4qsZfVstg+gCfTdLnqf51oy0Qy8MiD1uiyn/y LH0AnjRVi/LFnuYvhDIpjdl2NVc2wskt =zyB9 -----END PGP SIGNATURE----- --------------enigB66E6D3EFAF7D3F14E47A865--