From: Boris Ostrovsky <boris.ostrovsky@oracle.com>
To: Dario Faggioli <dario.faggioli@citrix.com>,
xen-devel <xen-devel@lists.xenproject.org>
Cc: Juergen Gross <jgross@suse.com>
Subject: Re: ACPI suspend/resume not failing with (dom0) kernel panic
Date: Fri, 23 Dec 2016 12:34:27 -0500 [thread overview]
Message-ID: <a729382d-b562-a237-c180-1934e3a4441f@oracle.com> (raw)
In-Reply-To: <1482513389.32021.15.camel@citrix.com>
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On 12/23/2016 12:16 PM, Dario Faggioli wrote:
> 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]
> [ 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 /0CRH6C, BIOS A09 04/20/2011
> [ 142.829928] 0000000000000086 00000000ca1fa4d3 ffffffff8cb269f5 ffff89b99d076200
> [ 142.837340] ffff89b99b763d48 ffffffff8c97a6b2 0000000000000008 ffff89b99b763d58
> [ 142.844751] ffff89b99b763cf0 00000000ca1fa4d3 0000000000000046 0000000000000002
> [ 142.852159] Call Trace:
> [ 142.854602] [<ffffffff8cb269f5>] ? dump_stack+0x5c/0x77
> [ 142.859980] [<ffffffff8c97a6b2>] ? panic+0xe4/0x226
> [ 142.865004] [<ffffffff8cc4b7c8>] ? dmar_disable_qi+0x108/0x110
> [ 142.870978] [<ffffffff8cc4bb1e>] ? dmar_reenable_qi+0x1e/0x30
> [ 142.876863] [<ffffffff8cc5429f>] ? reenable_irq_remapping+0x2f/0x110
> [ 142.883358] [<ffffffff8c850ccd>] ? lapic_resume+0x1ed/0x290
> [ 142.889073] [<ffffffff8cc5fd14>] ? syscore_resume+0x44/0x180
> [ 142.894873] [<ffffffff8c8c86f4>] ? suspend_devices_and_enter+0x654/0x6f0
> [ 142.901711] [<ffffffff8c8c8ab1>] ? pm_suspend+0x321/0x3a0
> [ 142.907253] [<ffffffff8c8c731f>] ? state_store+0x6f/0xd0
> [ 142.912707] [<ffffffff8ca7fa98>] ? kernfs_fop_write+0x118/0x1a0
> [ 142.918766] [<ffffffff8ca02303>] ? vfs_write+0xb3/0x1a0
> [ 142.924131] [<ffffffff8ca036e2>] ? SyS_write+0x52/0xc0
> [ 142.929413] [<ffffffff8cdefa76>] ? system_call_fast_compare_end+0xc/0x96
> [ 142.936264] Kernel Offset: 0xb800000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
> [ 142.947007] ---[ end Kernel panic - not syncing: DMAR hardware is malfunctioning
>
> Does this ring any bell?
Not really.
Does this happen without your patches too? What about other Xen versions
and/or baremetal?
Try also booting Xen with "iommu=debug" and see if something shows up in
the log.
-boris
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next prev parent reply other threads:[~2016-12-23 17:34 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-12-23 17:16 ACPI suspend/resume not failing with (dom0) kernel panic Dario Faggioli
2016-12-23 17:34 ` Boris Ostrovsky [this message]
2016-12-23 17:44 ` Dario Faggioli
2016-12-27 17:12 ` Jan Beulich
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