From: Konrad Rzeszutek Wilk <konrad@kernel.org>
To: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Andrew Cooper <andrew.cooper3@citrix.com>,
"Xen-devel@lists.xensource.com" <xen-devel@lists.xensource.com>,
Wei Liu <wei.liu2@citrix.com>, Jan Beulich <jbeulich@suse.com>,
paul.durrant@citrix.com
Subject: Re: Regression in Xen 4.7-rc1 - can't boot HVM guests with more than 64 vCPUS.
Date: Tue, 3 May 2016 15:13:32 -0400 [thread overview]
Message-ID: <CACJDEmq2mtp5UxQVs1e6hgC2cCb+3+g38yLDtoJVJr2gi-wxqQ@mail.gmail.com> (raw)
In-Reply-To: <CACJDEmo=XpH9zvDp-pPmOsk6WzzY-8bWAa=aPMaZbLxzZjCkBw@mail.gmail.com>
On Tue, May 3, 2016 at 12:55 PM, Konrad Rzeszutek Wilk
<konrad@kernel.org> wrote:
> On Tue, May 3, 2016 at 12:47 PM, Konrad Rzeszutek Wilk
> <konrad.wilk@oracle.com> wrote:
>>
>> The host has 240 CPUs and the HVM guests config looks as follow:
>>
>> -bash-4.1# cat /hvm.cfg
>> memory=64000
You can also make this 1024.
And on another machine (which only has 4 physical CPUs) I got some
date when trying starting this guest. The xl dmesg:reports
(XEN) HVM1 save: CPU
(XEN) HVM1 save: PIC
(XEN) HVM1 save: IOAPIC
(XEN) HVM1 save: LAPIC
(XEN) HVM1 save: LAPIC_REGS
(XEN) HVM1 save: PCI_IRQ
(XEN) HVM1 save: ISA_IRQ
(XEN) HVM1 save: PCI_LINK
(XEN) HVM1 save: PIT
(XEN) HVM1 save: RTC
(XEN) HVM1 save: HPET
(XEN) HVM1 save: PMTIMER
(XEN) HVM1 save: MTRR
(XEN) HVM1 save: VIRIDIAN_DOMAIN
(XEN) HVM1 save: CPU_XSAVE
(XEN) HVM1 save: VIRIDIAN_VCPU
(XEN) HVM1 save: VMCE_VCPU
(XEN) HVM1 save: TSC_ADJUST
(XEN) HVM1 restore: CPU 0
.. and:
bash-4.1# head qemu-dm-latest.log
char device redirected to /dev/pts/1 (label serial0)
qemu: hardware error: Fatal error while trying to get io event!
CPU #0:
EAX=00000000 EBX=00000000 ECX=00000000 EDX=00000663
ESI=00000000 EDI=00000000 EBP=00000000 ESP=00000000
EIP=0000fff0 EFL=00000002 [-------] CPL=0 II=0 A20=1 SMM=0 HLT=0
Let me try 4.6 and see where this goes. I know that 4.4 works fine.
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next prev parent reply other threads:[~2016-05-03 19:13 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-03 16:47 Regression in Xen 4.7-rc1 - can't boot HVM guests with more than 64 vCPUS Konrad Rzeszutek Wilk
2016-05-03 16:55 ` Konrad Rzeszutek Wilk
2016-05-03 19:13 ` Konrad Rzeszutek Wilk [this message]
2016-05-04 8:02 ` Roger Pau Monné
2016-05-04 9:02 ` Wei Liu
2016-05-04 9:55 ` Jan Beulich
2016-05-04 10:00 ` Wei Liu
2016-05-04 10:33 ` Jan Beulich
2016-05-04 15:51 ` Wei Liu
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