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: Fri, 21 Dec 2012 16:30:24 +0100 Message-ID: <50D48090.6060603@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> <50D4757202000078000B2042@nat28.tlf.novell.com> <50D46B47.8000003@invisiblethingslab.com> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============3338158056025678669==" Return-path: In-Reply-To: <50D46B47.8000003@invisiblethingslab.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: George Dunlap , 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) --===============3338158056025678669== Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enigA76CED10A7D5AEBBAEC9A69B" This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enigA76CED10A7D5AEBBAEC9A69B Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable On 21.12.2012 14:59, Marek Marczykowski wrote: > On 21.12.2012 14:42, 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 orig= inal=20 >>>>> symptom >>>>>> - only CPU0 active after ACPI S3. Didn't get reboot after few trie= s. >>>>>> "xl debug-key r" output attached. >>>>>> Anyway it looks like bug was introduced somehow between 4.1.2 and = 4.1.3 - 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= =20 >>> compiled >>> from above c/s. >> >> Which basically calls for you doing another bisection round, this >> time with that option in place. >=20 > Will try, but not sure if will have time for it before Christmas. Next bisection (this time with sched_ratelimit_us=3D0) gives this commit:= http://xenbits.xen.org/hg/xen-4.1-testing.hg/rev/d67e4d12723f I've tried also xen-4.1 tip with Ben's patch and sched_ratelimit_us=3D0, = but it didn't worked well - got all vCPUs on pCPU 0, instead on reboot (more com= mon effect). Not sure if this is really different effect or just non-determin= istic behavior of the same bug. --=20 Best Regards / Pozdrawiam, Marek Marczykowski Invisible Things Lab --------------enigA76CED10A7D5AEBBAEC9A69B 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 Mozilla - http://www.enigmail.net/ iQEcBAEBAgAGBQJQ1ICRAAoJENuP0xzK19csIc8H/R1ofBMCOCXRUrAZr0sFWykv QkU9vVuml1j0awCH14956kH98u/F1GAOKjI0YUegoIx1/WFxoLuSVEjsOi1qdcF6 AIKktJid9wjKZTVm0okAmrhENYW2N5syLlDa5GOeVq0fbXc9ATn2rjUhxaMBHK8N ha0KMgNEQZN9mHrTpT8d3jVKSkiHo8n88y5+gjtHxqZtPIKntpLXLvXRmHwPMMvT +uAkuxiSgO7GoiDKIV1A3d9r4uCaauCiXVVVkctTBt47GrZFx8xidboayTvHB4vJ nFZUQFtpKXyup8+ENnlPY7IqTUe/CSTzBIsaekMrSHQQflPLXtQkggvKp1lX5Ns= =70yj -----END PGP SIGNATURE----- --------------enigA76CED10A7D5AEBBAEC9A69B-- --===============3338158056025678669== 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 --===============3338158056025678669==--