From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stefan Bader Subject: Re: Xen PVM: Strange lockups when running PostgreSQL load Date: Fri, 19 Oct 2012 09:10:30 +0200 Message-ID: <5080FCE6.906@canonical.com> References: <1350479456-4007-1-git-send-email-stefan.bader@canonical.com> <507EB27D.8050308@citrix.com> <1350482118.2460.74.camel@zakaz.uk.xensource.com> <507ECD06.2050407@canonical.com> <507ED038.8000806@citrix.com> <507FC51102000078000A235E@nat28.tlf.novell.com> <507FC71502000078000A236C@nat28.tlf.novell.com> <507FB1E1.8080700@canonical.com> <1350546483.28188.25.camel@dagon.hellion.org.uk> <507FD7DE.2010209@canonical.com> <507FFA5102000078000A250D@nat28.tlf.novell.com> <507FF964.9090009@canonical.com> <50806C0B.1060504@canonical.com> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============7737577943205625628==" Return-path: In-Reply-To: <50806C0B.1060504@canonical.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: Jan Beulich Cc: Andrew Cooper , Konrad Rzeszutek Wilk , Ian Campbell , "xen-devel@lists.xen.org" List-Id: xen-devel@lists.xenproject.org This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --===============7737577943205625628== Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="------------enigCAE020D9B8986FF1DDE9B1EA" This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enigCAE020D9B8986FF1DDE9B1EA Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable On 18.10.2012 22:52, Stefan Bader wrote: > On 18.10.2012 14:43, Stefan Bader wrote: > So I tried below approach and that seems to be surviving the previously= breaking > testcase for much longer than anything I tried before. >=20 > -Stefan >=20 > From f2ebb6626f3e3a00932bf1f4f75265f826c7fba9 Mon Sep 17 00:00:00 2001 > From: Stefan Bader > Date: Thu, 18 Oct 2012 21:40:37 +0200 > Subject: [PATCH 1/2] xen/pv-spinlock: Never enable interrupts in > xen_spin_lock_slow() >=20 Testcase ran the whole night without problems. Now re-started it with a c= leaner kernel (only the patch above applied and no debugging and it has again pa= ssed the threshold it would have broken before. -Stefan Oh, just in case this *is* the solution, it should very definitely be mar= ked with a cc: stable. --------------enigCAE020D9B8986FF1DDE9B1EA Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://www.enigmail.net/ iQIcBAEBCgAGBQJQgPzmAAoJEOhnXe7L7s6j8bUP/ittlWh6RnaAsI12Yh33XJ5t pnquYNqbo84YSc8SnyOs5G5f//sMxJgStUoAPKCCLWTW0yPkX00tstreoAxjuJ5R +cLZK4ib8BdCvgAdxUwq7zbt/QNe/FA7AK7LpPM0mKhV+GycxDJ8JqeQbrTI3GLO O9JKiX2KM8hzw3G8qdQ9fnuDnOLKIPXNDHlKUHE4LcIAuFkfDBYIuA/wGweO9b4h Can3oOBvi9S02CPzn8ygZN3bOL82jFYPlK2kmX2z3O7kX2JTSPy1c4PivWsuf/wY ukV0c7OrdZR0PGveTUHzQzIdA6H8NxV5AERuEaCAOuS7p/EER48Z4+gmlafHKmXv mpfaooFKsGWmnfkpKj7PvA1vN3zURRIhb/U4rM1EEHnHCHKxG/I1HcUn5g3K1cMs /FnW/BsU8o5j4U6ZtdMfrQihgCJxDKmBiAgU2P6SkH+yb1RUxgZPVzKtxGeEnM7R O2CCLzDvdcPciG+XuYG+3JJrY6Zs9xn7gZrqMutYgbhz3YSG5+v3ALVX5Z0boff6 X6cLGEQjmH2gw0uATBH9VgLtA7a5zBOd5YxGUhyVou6YdBqsO3/LiqJjPEGsGiM6 slE/OdBrXU6Ic7cn1JlGiDHxNuEjQgjxHZVRMcY1ccAwnJh5ZpXZ5kwDj1MKPVgx mh6qvbLxyGkbzQ6TEqOW =x0Oj -----END PGP SIGNATURE----- --------------enigCAE020D9B8986FF1DDE9B1EA-- --===============7737577943205625628== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel --===============7737577943205625628==--