From: "Jan Beulich" <JBeulich@suse.com>
To: Matthias <matthias.kannenberg@googlemail.com>,
Yang Z Zhang <yang.z.zhang@intel.com>
Cc: "tim@xen.org" <tim@xen.org>,
"xen-devel@lists.xen.org" <xen-devel@lists.xen.org>
Subject: Re: Please revert / review 077fc1c04d70ef1748ac2daa6622b3320a1a004c
Date: Mon, 16 Jun 2014 09:08:40 +0100 [thread overview]
Message-ID: <539EC228020000780001A7FC@mail.emea.novell.com> (raw)
In-Reply-To: <A9667DDFB95DB7438FA9D7D576C3D87E0AAF9ABB@SHSMSX104.ccr.corp.intel.com>
>>> On 16.06.14 at 09:47, <yang.z.zhang@intel.com> wrote:
> Matthias wrote on 2014-06-12:
>> domain = 0, device id = 0x98, fault address = 0xffffffc0, flags = 0
>> (XEN) AMD-Vi: IO_PAGE_FAULT: domain = 0, device id = 0x90, fault
>> address = 0xffffffc0, flags = 0
>> (XEN) AMD-Vi: IO_PAGE_FAULT: domain = 0, device id = 0x98, fault
>> address = 0xffffffc0, flags = 0
>> (XEN) AMD-Vi: IO_PAGE_FAULT: domain = 0, device id = 0x90, fault
>> address = 0xffffffc0, flags = 0
>> (XEN) AMD-Vi: IO_PAGE_FAULT: domain = 0, device id = 0x98, fault
>> address = 0xffffffc0, flags = 0
>> (XEN) AMD-Vi: IO_PAGE_FAULT: domain = 0, device id = 0x90, fault
>> address = 0xffffffc0, flags = 0
>> (XEN) AMD-Vi: IO_PAGE_FAULT: domain = 0, device id = 0x98, fault
>> address = 0xffffffc0, flags = 0
>> (XEN) AMD-Vi: IO_PAGE_FAULT: domain = 0, device id = 0x90, fault
>> address = 0xffffffc0, flags = 0
>
> This is really strange. The fault shows it is caused by dom0's activity. But
> the device have assigned to the guest. Are you sure the devices(00:13.0 and
> 00:12.0) are hidden and dom0 is not using it? BTW, what are the devices of
> 00:12.0 and 00:13.0?
It's not just that which is odd. The fault address is suspicious too;
I only ever saw such along with discovering what led to 6b4d71d0
("AMD IOMMU: don't free page table prematurely". Matthias - it
certainly wouldn't hurt if you included that fix in whatever you build
your hypervisor from (backports are already available in older trees).
Jan
Jan
next prev parent reply other threads:[~2014-06-16 8:08 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-06-11 15:44 Please revert / review 077fc1c04d70ef1748ac2daa6622b3320a1a004c Matthias
2014-06-12 1:02 ` Zhang, Yang Z
2014-06-12 9:35 ` Jan Beulich
2014-06-12 13:49 ` Matthias
2014-06-16 7:47 ` Zhang, Yang Z
2014-06-16 8:08 ` Jan Beulich [this message]
2014-06-16 13:42 ` Matthias
2014-06-16 14:52 ` Jan Beulich
2014-06-16 15:07 ` Matthias
2014-06-18 7:25 ` Zhang, Yang Z
2014-06-18 22:21 ` Matthias
2014-06-19 1:07 ` Matthias
2014-06-19 1:29 ` Matthias
2014-06-19 12:25 ` Zhang, Yang Z
2014-06-19 16:22 ` Matthias
2014-06-20 0:20 ` Zhang, Yang Z
2014-06-20 8:22 ` Jan Beulich
2014-06-20 10:07 ` Matthias
2014-06-20 11:18 ` Jan Beulich
2014-06-20 11:27 ` Zhang, Yang Z
2014-06-20 11:24 ` Zhang, Yang Z
2014-06-20 11:28 ` Zhang, Yang Z
2014-06-20 8:17 ` Jan Beulich
2014-06-20 11:26 ` Zhang, Yang Z
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