Re: [Xen-devel] Unable to bring up SMP DomUs on x86_64 Xen

[David F Barrera <dfbp@xxxxxxxxxx>]

On Tue, 2005-10-18 at 16:45 -0400, Puthiyaparambil, Aravindh wrote:
> I was trying to bring up a SMP DomU on Xen x86_64. The DomU dies while
> booting processor 1/1. This is in spite of the fact that I have set
> vcpus to 4 in the DomU configuration file. I confirmed that the DomU
> kernel was compiled with SMP turned on. I am seeing this on the Dell and
> ES7000 x86_64 boxes. Is anyone else seeing this issue or am I doing
> something wrong?

I am seeing it, too:
[root@bl2-10 ~]# xm create -c /tmp/xen/test.cfg 
Using config file "/tmp/xen/test.cfg".
Started domain vm1
Linux version 2.6.12-xenU (root@bl2-10) (gcc version 4.0.0 20050405 (Red
Hat 4.0
.0-0.40)) #1 SMP Tue Oct 18 07:05:25 CDT 2005
kernel direct mapping tables upto 20000000 @ 50e000-610000
Built 1 zonelists
Kernel command line:  root=/dev/sdb2 ro
Initializing CPU#0
PID hash table entries: 4096 (order: 12, 131072 bytes)
Xen reported: 3600.124 MHz processor.
Dentry cache hash table entries: 131072 (order: 8, 1048576 bytes)
Inode-cache hash table entries: 65536 (order: 7, 524288 bytes)
Memory: 509440k/524288k available (1921k kernel code, 14336k reserved,
639k data
, 136k init)
Mount-cache hash table entries: 256
CPU: Trace cache: 12K uops, L1 D cache: 16K
CPU: L2 cache: 1024K
CPU: Physical Processor ID: 3
Booting processor 1/1 rip ffffffff80100008 rsp ffff880000655f58
Initializing CPU#1
CPU: Trace cache: 12K uops, L1 D cache: 16K
CPU: L2 cache: 1024K
CPU: Physical Processor ID: 0
                  Intel(R) Xeon(TM) CPU 3.60GHz stepping 01
Booting processor 2/2 rip ffffffff80100008 rsp ffff88000069ff58
Initializing CPU#2
CPU: Trace cache: 12K uops, L1 D cache: 16K
CPU: L2 cache: 1024K
CPU: Physical Processor ID: 0
                  Intel(R) Xeon(TM) CPU 3.60GHz stepping 01
Booting processor 3/3 rip ffffffff80100008 rsp ffff880000089f58
Initializing CPU#3
CPU: Trace cache: 12K uops, L1 D cache: 16K
CPU: L2 cache: 1024K
CPU: Physical Processor ID: 3
                  Intel(R) Xeon(TM) CPU 3.60GHz stepping 01
Brought up 4 CPUs

------------------------------------------------

I am not seeing the stop_this_cpu... message, however. You may want to
write a defect on the Xen bugzilla, or, if you'd like, I can do it.

David

> 
> Aravindh
> 
> DomU BOOT OUTPUT
> ----------------
> xenbox:~/xen/vm # xm create dom64_2 -c
> Using config file "dom64_2".
> Started domain dom64_2
> Linux version 2.6.12-xenU (root@xenbox) (gcc version 3.3.3 (SuSE Linux))
> #1 SMP Tue Oct 18 16:17:52 EDT 2005
> kernel direct mapping tables upto 18000000 @ 474000-536000
> Built 1 zonelists
> Kernel command line:  root=/dev/sda1 ro 3
> Initializing CPU#0
> PID hash table entries: 2048 (order: 11, 65536 bytes)
> Xen reported: 2992.694 MHz processor.
> Dentry cache hash table entries: 65536 (order: 7, 524288 bytes)
> Inode-cache hash table entries: 32768 (order: 6, 262144 bytes)
> Memory: 381952k/393216k available (1669k kernel code, 10836k reserved,
> 560k data, 136k init)
> Mount-cache hash table entries: 256
> CPU: Trace cache: 12K uops, L1 D cache: 16K
> CPU: L2 cache: 1024K
> CPU: Physical Processor ID: 0
> Booting processor 1/1 rip ffffffff80100008 rsp ffff880000575f58
> 
> SERIAL OUTPUT
> -------------
> (XEN) (file=traps.c, line=968) Non-priv domain attempted
> RDMSR(00000000c0000080,00018000,00018000).
> (XEN) (file=traps.c, line=960) Non-priv domain attempted
> WRMSR(00000000c0000100,00000000,00000000).
> (XEN) (file=traps.c, line=960) Non-priv domain attempted
> WRMSR(00000000c0000102,00000000,00000000).
> (XEN) (file=traps.c, line=968) Non-priv domain attempted
> RDMSR(00000000c0000080,00000000,00000000).
> (XEN) (file=traps.c, line=960) Non-priv domain attempted
> WRMSR(00000000c0000100,00000000,00000000).
> (XEN) (file=traps.c, line=960) Non-priv domain attempted
> WRMSR(00000000c0000102,00000000,00000000).
> (XEN) (file=traps.c, line=968) Non-priv domain attempted
> RDMSR(00000000c0000080,00000000,00000000).
> (XEN) (file=traps.c, line=968) Non-priv domain attempted
> RDMSR(00000000c0000100,00000045,ffffffffff5fd000).
> (XEN) (file=traps.c, line=968) Non-priv domain attempted
> RDMSR(00000000c0000101,00000000,00000000).
> (XEN) (file=traps.c, line=968) Non-priv domain attempted
> RDMSR(00000000c0000102,80372b00,ffffffff).
> stop_this_cpu disable_local_APIC
> 
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-devel
> 
-- 
Regards,

David F Barrera
Linux Technology Center
Systems and Technology Group, IBM

"The wisest men follow their own direction. "
                                                        Euripides


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