From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dario Faggioli Subject: Re: ACPI suspend/resume not failing with (dom0) kernel panic Date: Fri, 23 Dec 2016 18:44:36 +0100 Message-ID: <1482515076.32021.20.camel@citrix.com> References: <1482513389.32021.15.camel@citrix.com> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============5019961771441791849==" Return-path: Received: from mail6.bemta3.messagelabs.com ([195.245.230.39]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1cKTte-0004vH-OH for xen-devel@lists.xenproject.org; Fri, 23 Dec 2016 17:44:46 +0000 In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: Boris Ostrovsky , xen-devel Cc: Juergen Gross List-Id: xen-devel@lists.xenproject.org --===============5019961771441791849== Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="=-2lzlOMwQz2J531ClPTdc" --=-2lzlOMwQz2J531ClPTdc Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Fri, 2016-12-23 at 12:34 -0500, Boris Ostrovsky wrote: > On 12/23/2016 12:16 PM, Dario Faggioli wrote: > > [=C2=A0=C2=A0132.790494] smpboot: CPU 15 is now offline > > [=C2=A0=C2=A0132.797383] ACPI: Low-level resume complete > > [=C2=A0=C2=A0132.801635] PM: Restoring platform NVS memory > > [=C2=A0=C2=A0142.805036] Kernel panic - not syncing: DMAR hardware is > > malfunctioning > > [=C2=A0=C2=A0142.805036]=C2=A0 > > [=C2=A0=C2=A0142.813109] CPU: 0 PID: 1386 Comm: pm-suspend Not tainted = 4.8.0- > > 2-amd64 #1 Debian 4.8.11-1 > > [=C2=A0=C2=A0142.821345] Hardware name: Dell Inc. Precision WorkStation > > T5500=C2=A0=C2=A0/0CRH6C, BIOS A09 04/20/2011 > > [=C2=A0=C2=A0142.829928]=C2=A0=C2=A00000000000000086 00000000ca1fa4d3 f= fffffff8cb269f5 > > ffff89b99d076200 > > [=C2=A0=C2=A0142.837340]=C2=A0=C2=A0ffff89b99b763d48 ffffffff8c97a6b2 0= 000000000000008 > > ffff89b99b763d58 > > [=C2=A0=C2=A0142.844751]=C2=A0=C2=A0ffff89b99b763cf0 00000000ca1fa4d3 0= 000000000000046 > > 0000000000000002 > > [=C2=A0=C2=A0142.852159] Call Trace: > > [=C2=A0=C2=A0142.854602]=C2=A0=C2=A0[] ? dump_stack+0= x5c/0x77 > > [=C2=A0=C2=A0142.859980]=C2=A0=C2=A0[] ? panic+0xe4/0= x226 > > [=C2=A0=C2=A0142.865004]=C2=A0=C2=A0[] ? dmar_disable= _qi+0x108/0x110 > > [=C2=A0=C2=A0142.870978]=C2=A0=C2=A0[] ? dmar_reenabl= e_qi+0x1e/0x30 > > [=C2=A0=C2=A0142.876863]=C2=A0=C2=A0[] ? > > reenable_irq_remapping+0x2f/0x110 > > [=C2=A0=C2=A0142.883358]=C2=A0=C2=A0[] ? lapic_resume= +0x1ed/0x290 > > [=C2=A0=C2=A0142.889073]=C2=A0=C2=A0[] ? syscore_resu= me+0x44/0x180 > > [=C2=A0=C2=A0142.894873]=C2=A0=C2=A0[] ? > > suspend_devices_and_enter+0x654/0x6f0 > > [=C2=A0=C2=A0142.901711]=C2=A0=C2=A0[] ? pm_suspend+0= x321/0x3a0 > > [=C2=A0=C2=A0142.907253]=C2=A0=C2=A0[] ? state_store+= 0x6f/0xd0 > > [=C2=A0=C2=A0142.912707]=C2=A0=C2=A0[] ? kernfs_fop_w= rite+0x118/0x1a0 > > [=C2=A0=C2=A0142.918766]=C2=A0=C2=A0[] ? vfs_write+0x= b3/0x1a0 > > [=C2=A0=C2=A0142.924131]=C2=A0=C2=A0[] ? SyS_write+0x= 52/0xc0 > > [=C2=A0=C2=A0142.929413]=C2=A0=C2=A0[] ? > > system_call_fast_compare_end+0xc/0x96 > > [=C2=A0=C2=A0142.936264] Kernel Offset: 0xb800000 from 0xffffffff810000= 00 > > (relocation range: 0xffffffff80000000-0xffffffffbfffffff) > > [=C2=A0=C2=A0142.947007] ---[ end Kernel panic - not syncing: DMAR hard= ware > > is malfunctioning > >=20 > > Does this ring any bell? >=20 > Not really. >=20 > Does this happen without your patches too? What about other Xen > versions > and/or baremetal? >=20 Yes, it happens without my patches. Xen version is current staging. I didn't think about testing baremetal. I've just done it, and yes, it _crashes_ in the same way. I'd say this is not a Xen issue then, and I should report to proper Linux people (after having tried 4.9, probably). Regards, Dario --=20 <> (Raistlin Majere) ----------------------------------------------------------------- Dario Faggioli, Ph.D, http://about.me/dario.faggioli Senior Software Engineer, Citrix Systems R&D Ltd., Cambridge (UK) --=-2lzlOMwQz2J531ClPTdc Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part Content-Transfer-Encoding: 7bit -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQIcBAABCAAGBQJYXWKFAAoJEBZCeImluHPuecEP/RL71ZyMsK9758pmKXOAfUW3 ZBwZ9zYnZ31DJqpBXkbSrEg+ApuRwKyDlc3xSgzLfG2zx3aMFGg7P13+iizrtw2A xLy8Lnkox5Beta4iidQVnoiMmd6kqS/S9dab/MzWShVYj0EqnBCeFPcx+WNw6Dy4 VFJCOnWNZVK7Hc4zhbfdHk23YnS02uHXsvYjoSxJ6tEAdtRT/8iRoF7rboK66eav SVE1/xGupSx63JoQri2w18IuJ8lGZsRylyAgeRojOq5NjWFdcvvR0K+kIFDaEHxH tTBBsejo0lGXZaAJ/XQZOXo0iJ5qUp1UhdXM6N4mF3zLQfqsRuiTuABdnJGMI41D wMUTaHzpYIhXRGUHyOrKaEsDx/DWoNm3zsEpgIfU8U6k3wZglKoC+d9FwJP6BEUx PvVwc7YxHNpIn5nUnm3LXXyrADhAvjL3X2LX7J3UQLlvKIE2SRpMSrD03GEyCr6y c59OJZaCvb5mCrqUYq7MTXXQIKUNUTav9mfL2nV0pTrP8x5etbOMI0DFWQUIyxkX 4rvGhaGVGj4KQ3Ao0J2egLrm85P2BkUgV7IpBxxU4luwjEe3Ygmt1603PNu0TXCh iqgJX4FoTubOFglCG0EyJBEJIMUbwDrQjwg3baT+wnGWFeutTgcI6URMxPW4EEGX l+urubQ2C0CXbe/VfytN =U4kx -----END PGP SIGNATURE----- --=-2lzlOMwQz2J531ClPTdc-- --===============5019961771441791849== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Content-Disposition: inline X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KWGVuLWRldmVs IG1haWxpbmcgbGlzdApYZW4tZGV2ZWxAbGlzdHMueGVuLm9yZwpodHRwczovL2xpc3RzLnhlbi5v cmcveGVuLWRldmVsCg== --===============5019961771441791849==--