From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dario Faggioli Subject: ACPI suspend/resume not failing with (dom0) kernel panic Date: Fri, 23 Dec 2016 18:16:29 +0100 Message-ID: <1482513389.32021.15.camel@citrix.com> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============0242514148146883480==" Return-path: Received: from mail6.bemta6.messagelabs.com ([193.109.254.103]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1cKTSS-0002O3-1M for xen-devel@lists.xenproject.org; Fri, 23 Dec 2016 17:16:40 +0000 List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: xen-devel Cc: Juergen Gross , Boris Ostrovsky List-Id: xen-devel@lists.xenproject.org --===============0242514148146883480== Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="=-WuwzeUoP2pposuHsG5fq" --=-WuwzeUoP2pposuHsG5fq Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Hey, I was trying ACPI suspend/resume for testing some patches to Xen, on a box on which I'm 100% sure I've seen it working a few time back. Right now, suspending seems ok, but upon resuming, this is what I see (and after that, everything is just locked): [ 132.790494] smpboot: CPU 15 is now offline [ 132.797383] ACPI: Low-level resume complete [ 132.801635] PM: Restoring platform NVS memory [ 142.805036] Kernel panic - not syncing: DMAR hardware is malfunctioning [ 142.805036]=20 [ 142.813109] CPU: 0 PID: 1386 Comm: pm-suspend Not tainted 4.8.0-2-amd64 = #1 Debian 4.8.11-1 [ 142.821345] Hardware name: Dell Inc. Precision WorkStation T5500 /0CRH6= C, BIOS A09 04/20/2011 [ 142.829928] 0000000000000086 00000000ca1fa4d3 ffffffff8cb269f5 ffff89b9= 9d076200 [ 142.837340] ffff89b99b763d48 ffffffff8c97a6b2 0000000000000008 ffff89b9= 9b763d58 [ 142.844751] ffff89b99b763cf0 00000000ca1fa4d3 0000000000000046 00000000= 00000002 [ 142.852159] Call Trace: [ 142.854602] [] ? dump_stack+0x5c/0x77 [ 142.859980] [] ? panic+0xe4/0x226 [ 142.865004] [] ? dmar_disable_qi+0x108/0x110 [ 142.870978] [] ? dmar_reenable_qi+0x1e/0x30 [ 142.876863] [] ? reenable_irq_remapping+0x2f/0x110 [ 142.883358] [] ? lapic_resume+0x1ed/0x290 [ 142.889073] [] ? syscore_resume+0x44/0x180 [ 142.894873] [] ? suspend_devices_and_enter+0x654/0x6f= 0 [ 142.901711] [] ? pm_suspend+0x321/0x3a0 [ 142.907253] [] ? state_store+0x6f/0xd0 [ 142.912707] [] ? kernfs_fop_write+0x118/0x1a0 [ 142.918766] [] ? vfs_write+0xb3/0x1a0 [ 142.924131] [] ? SyS_write+0x52/0xc0 [ 142.929413] [] ? system_call_fast_compare_end+0xc/0x9= 6 [ 142.936264] Kernel Offset: 0xb800000 from 0xffffffff81000000 (relocation= range: 0xffffffff80000000-0xffffffffbfffffff) [ 142.947007] ---[ end Kernel panic - not syncing: DMAR hardware is malfun= ctioning Does this ring any bell? Thanks and Regards, Dario --=20 <> (Raistlin Majere) ----------------------------------------------------------------- Dario Faggioli, Ph.D, http://about.me/dario.faggioli Senior Software Engineer, Citrix Systems R&D Ltd., Cambridge (UK) --=-WuwzeUoP2pposuHsG5fq 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 iQIcBAABCAAGBQJYXVvtAAoJEBZCeImluHPuqUEQAIRP39HTIe1ULfq1SK37cuQT 6TIY6+brBDTKjLpAZ/YEiLqH0YiGjz6oqP9tEACLWbV710siABMtwhu1sMMCiaIl oNVjjQCksy7lR1l55r2KuZRtlAlvj7ysJRmErYkPJ0X9NxsT9gIEL6Qtj4nUOWlV kC346+Vqz/TQyDE2lb1Kqa0DhnynfXFW4Nt/3SgcO0cCtuCkA29Rvi3374ZoMLNa Wr5P+5axTVirCce0BFYtKKKtv6bbOaNdkz0yfgumTSbQJ/jfkExfV+Ukc+CNZeYe VdAjjW5T1+EVdisBMDkJLMDWHTZmmxcYxv1z9uYNMqryD+qFA5KFd48cL1NcXVSl HPnssVw+ZpW72yd6/DaXBx/Sa7LH0W0v4L4kY0GhXpwlH6gEgBfnG4cZlmWoMz/1 TzbMghd7CO2cWpBmtFfDjtmvLnIdiIQQyQ+BKCcavp4CZTmQ8arUeWApGgsWVUEu kIQh1UNpvtSbkkkca9CD27AqBIEYl83aiYIEHw657XbTOBk9XHuQ6vMmxrFhll+x 7L1qUCWyTn4JGtOo+LXGTPUNZwqjtXTjPjYytSKCl1srtYrtyBEAQfl74Gn/2HXz R7e2PaECiorX63stvUZiBlyYV4C+usHtmU0JI0rCtXAm3m6rumOow8cY0vYYHkgo Vuy6NnGDAq+UQ9Zpr3mV =ge/H -----END PGP SIGNATURE----- --=-WuwzeUoP2pposuHsG5fq-- --===============0242514148146883480== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Content-Disposition: inline X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KWGVuLWRldmVs IG1haWxpbmcgbGlzdApYZW4tZGV2ZWxAbGlzdHMueGVuLm9yZwpodHRwczovL2xpc3RzLnhlbi5v cmcveGVuLWRldmVsCg== --===============0242514148146883480==--