From mboxrd@z Thu Jan 1 00:00:00 1970 From: Marek Marczykowski Subject: Re: Only CPU0 active after ACPI S3, xen 4.1.3 Date: Sat, 12 Jan 2013 08:05:23 +0100 Message-ID: <50F10B33.9040705@invisiblethingslab.com> References: <50B7AF8A.5010304@invisiblethingslab.com> <50B88B8402000078000ACC4C@nat28.tlf.novell.com> <50B8D9A9.60502@invisiblethingslab.com> <50B8DAEA0200007800090B69@nat28.tlf.novell.com> <50B8DC55.8000308@invisiblethingslab.com> <50BC653E02000078000AD28C@nat28.tlf.novell.com> <50BDFA38.7030009@invisiblethingslab.com> <50D335E6.902@invisiblethingslab.com> <50D39C73.906@invisiblethingslab.com> <50D3EB03.4000109@invisiblethingslab.com> <50D4322102000078000B1F80@nat28.tlf.novell.com> <50D46534.2010304@invisiblethingslab.com> <50E554C302000078000B29BA@nat28.tlf.novell.com> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============3966601402354735856==" Return-path: In-Reply-To: <50E554C302000078000B29BA@nat28.tlf.novell.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: Ben Guthro , xen-devel@lists.xen.org List-Id: xen-devel@lists.xenproject.org This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --===============3966601402354735856== Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enig2DFB5C7D915B8EAE1F000C9E" This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enig2DFB5C7D915B8EAE1F000C9E Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable On 03.01.2013 09:52, Jan Beulich wrote: >>>> On 21.12.12 at 14:33, Marek Marczykowski > wrote: >> On 21.12.2012 09:55, Jan Beulich wrote: >>>>>> On 21.12.12 at 05:52, Marek Marczykowski =20 >> wrote: >>>> On 21.12.2012 00:17, Marek Marczykowski wrote: >>>>> With this patch applied (on 4.1.4 and 4.3-unstable), I've got origi= nal=20 >>>> symptom >>>>> - only CPU0 active after ACPI S3. Didn't get reboot after few tries= =2E >>>>> "xl debug-key r" output attached. >>>>> Anyway it looks like bug was introduced somehow between 4.1.2 and 4= =2E1.3 - on >>>>> 4.1.2 none of above problems happened. >>>> >>>> I've done bisect on xen 4.1 and found problematic commit: >>>> http://xenbits.xen.org/hg/xen-4.1-testing.hg/rev/1f95b55ef427=20 >>> >>> In that case, using "sched_ratelimit_us=3D0" should make the >>> problem go away again - did you try that? >> >> This option does not help when trying 4.1.4, but does when trying xen = >> compiled from above c/s. >=20 > Are you saying that on 4.1.4 this doesn't take effect? Are there > any log messages indicating so? The above being the top most > change to sched_credit.c, this difference in behavior pretty odd. I can no longer reproduce this bug on 4.1.3-rc1-pre (above sched_credit c= /s) with or without sched_ratelimit_us=3D0. So it must be some mistake during= previous testing. Also the problem from email subject is rather rare and not observed after= ~20 suspend-resume cycles... Just to summary: 4.1.3-rc1-pre (above sched_credit c/s) - works ok 4.1.4 regardless of sched_ratelimit_us=3D0 reboots at resume 4.1.5-pre reboots at resume regardless of sched_ratelimit_us option 4.1.5-pre with "Introduce system_state variable" reverted works fine - regardless of sched_ratelimit_us option "4.1.5-pre" was c/s 23436:2ae6267371d8, but still the same effects on 23441:2a91623a5807. > On 4.2, this wouldn't be surprising, given that without -unstable > c/s 26266:8d209624ea83 the =3D0 special case didn't get handled > (broken by 24880:dd9e8f1ebed1). >=20 > Jan >=20 --=20 Best Regards / Pozdrawiam, Marek Marczykowski Invisible Things Lab --------------enig2DFB5C7D915B8EAE1F000C9E Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) Comment: Using GnuPG with undefined - http://www.enigmail.net/ iQEcBAEBAgAGBQJQ8Qs3AAoJENuP0xzK19csU14IAJaWOGp4ZRaqt/og5e2DDa2x FV+UnTcE19ygFs8EedcCOxAskTYMPZF6yFBuuLFuogvvXCc0oRFz88n4qdttJUak EELf+fS1tCoQuFetsJCJbIgglrwL6HY2Je9XUzzY+tDZ2jeZwZ1SoybNNtJUHybJ tK5K6L6U4QS6ALPdpF1wZ5AVOeU++Ta/dXbiLBDgalKtHAqC2XvRPPyqekkKowZY iiw04Z9tHDKxPAru+z1yBZTwdLcsNxGDG1i3GlIwKWTU0Tk09kKRwLoHjbAl7Qe8 6bFR3DJAav8abSgh35hC6aJVC5RMBB3NfhOxp2gBgTv0S9mPb3/Z2ITrlVmzifQ= =UCd2 -----END PGP SIGNATURE----- --------------enig2DFB5C7D915B8EAE1F000C9E-- --===============3966601402354735856== 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 --===============3966601402354735856==--