From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrew Cooper Subject: Re: vcpu state are all paused Date: Mon, 7 Dec 2015 12:56:18 +0000 Message-ID: <566581F2.3030105@citrix.com> References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============8633304966875613929==" Return-path: In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: Big Strong , xen-devel List-Id: xen-devel@lists.xenproject.org --===============8633304966875613929== Content-Type: multipart/alternative; boundary="------------040603000700070008030708" --------------040603000700070008030708 Content-Type: text/plain; charset="windows-1252" Content-Transfer-Encoding: 7bit On 07/12/15 12:39, Big Strong wrote: > I set the xen.efi directly boot without grub2 to be able to list all > the cpu cores. > However, after that all the vcpus are in paused state except one for dom0. > > ~$ sudo xl vcpu-list > Name ID VCPU CPU State Time(s) > Affinity (Hard / Soft) > Domain-0 0 0 0 r-- 64.7 > 0 / all > Domain-0 0 1 - *--p * > 0.0 1 / all > Domain-0 0 2 - -*-p* > 0.0 2 / all > Domain-0 0 3 - -*-p * > 0.0 3 / all > ubuntu-hvm 1 0 5 -b- 16.9 > 4-5 / all > > > The full logs during xen booting is at http://paste.ubuntu.com/13786410/ > It looks like some of the ACPI tables are disabled and there is two > errors: > "ACPI BIOS Error (bug): A valid RSDP was not found (20131115/tbxfroot-211) > ioapic: probe of 0000:00:05.4 failed with error -22" > I'm not sure if it's a users' problem or dev problem. If I'm wrong, > please point it out. Any help will be great appreciated. Xen itself gets a proper set of ACPI tables and boots sensibly. However, dom0 fails to retrieve any APCI tables. dom0 isn't in uniprocessor mode: [ 0.000000] Booting paravirtualized kernel on Xen [ 0.000000] Xen version: 4.6.0 (preserve-AD) [ 0.000000] setup_percpu: NR_CPUS:256 nr_cpumask_bits:256 nr_cpu_ids:1 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 29 pages/cpu @ffff880285000000 s86336 r8192 d24256 u2097152 and should be able to bring up its secondary cpus via paravirt methods. I think it is a bug that dom0 can't see the ACPI tables; Xen should be providing them properly. However, I think it is also a bug that Linux is unable to start its secondary cpus; it should be able to cope as all PV domU's lack access to ACPI tables. ~Andrew --------------040603000700070008030708 Content-Type: text/html; charset="windows-1252" Content-Length: 3850 Content-Transfer-Encoding: quoted-printable

On 07/12/15 12:39, Big Strong wrote:

I set the xen.efi directly boot without grub2 to be able to list all the cpu cores.
However, after that all the vcpus are in paused state except one for dom0.

~$ sudo xl vcpu-list
Name =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0ID =A0VCPU =A0 CPU State =A0 Time(s) Affinity (Hard / Soft)
Domain-0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 0 =A0 =A0 0 =A0 =A00 =A0 r-- =A0 =A0 =A064.7 =A00 / all
Domain-0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 0 =A0 =A0 1 =A0 =A0- =A0 --p =A0 =A0 =A0 0.0 =A01 / all
Domain-0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 0 =A0 =A0 2 =A0 =A0- =A0 --p =A0 =A0 =A0 0.0 =A02 / all
Domain-0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 0 =A0 =A0 3 =A0 =A0- =A0 --p =A0 =A0 =A0 0.0 =A03 / all
ubuntu-hvm =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 1 =A0 =A0 0 =A0 =A05 =A0 -b- =A0 =A0 =A016.9 =A04-5 / all
The full logs during xen booting is at=A0 http://paste.ubuntu.com/13786410/

It looks like some of the ACPI tables are disabled and there is two errors:
"ACPI BIOS Error (bug): A valid RSDP was not found (20131115/tbxfroot-211)
ioapic: probe of 0000:00:05.4 failed with error -22"
I'm not sure if it's a users' problem or dev problem. If I'm wrong, please point it out. Any help will be great appreciated.

Xen itself gets a proper set of ACPI tables and boots sensibly.=A0 However, dom0 fails to retrieve any APCI tables.

dom0 isn't in uniprocessor mode:

[    0.000000] Booting paravirtualized kernel on Xen
[    0.000000] Xen version: 4.6.0 (preserve-AD)
[    0.000000] setup_percpu: NR_CPUS:256 nr_cpumask_bits:256 nr_cpu_ids:1 nr_node_ids:1
[    0.000000] PERCPU: Embedded 29 pages/cpu @ffff880285000000 s86336 r8192 d24256 u2097152

and should be able to bring up its secondary cpus via paravirt methods.

I think it is a bug that dom0 can't see the ACPI tables; Xen should be providing them properly.

However, I think it is also a bug that Linux is unable to start its secondary cpus; it should be able to cope as all PV domU's lack access to ACPI tables.

~Andrew
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