Re: [Xen-devel] ERROR: domain->span does not contain CPU0

["Bryan D. Payne" <bryan@xxxxxxxxxxxx>]

I got this same error last night when I was working with the same  
changeset.  I found that by compiling the dom0 kernel without SMP  
support, but with APIC support, I was able to work around the problem.
-bryan


> Date: Mon, 31 Oct 2005 23:38:01 -0600
> From: "Christopher S. Aker" <caker@xxxxxxxxxxxx>
> Subject: [Xen-devel] ERROR: domain->span does not contain CPU0
> To: xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>
> Message-ID: <4366FF39.6010503@xxxxxxxxxxxx>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> Latest ChangeSet: Mon Oct 31 11:07:14 2005 +0100 7572:ea6d9f29dff5
>
> Full boot log:
> http://www.theshore.net/~caker/xen/bug4.txt
>
> -------
> (XEN) System RAM: 6143MB (6290456kB)
> (XEN) Xen heap: 10MB (10428kB)
> (XEN) PAE enabled, limit: 16 GB
>
> <snip>
>
> Checking 'hlt' instruction... disabled
> ENABLING IO-APIC IRQs
> Initializing CPU#1
> Initializing CPU#2
> Brought up 4 CPUs
> Initializing CPU#3
> ERROR: domain->span does not contain CPU0
> ERROR: domain->groups does not contain CPU0
> ERROR: empty group
>   00
> ERROR: group is NULL
>
> ERROR: domain->span does not contain CPU1
> ERROR: domain->groups does not contain CPU1
> ERROR: empty group
>   00
> ERROR: group is NULL
>
> Unable to handle kernel NULL pointer dereference at virtual address  
> 00000004
>   printing eip:
> c011e236
> 00608000 -> *pde = 00000000:07e09001
> 00609000 -> *pme = 00000000:00000000
> Oops: 0000 [#1]
> PREEMPT SMP
> Modules linked in:
> CPU:    0
> EIP:    0061:[<c011e236>]    Not tainted VLI
> EFLAGS: 00010207   (2.6.12.6-xen0)
> EIP is at find_busiest_group+0x46/0x2e0
> eax: 00000000   ebx: c1217d40   ecx: 00000000   edx: 00000000
> esi: 00000000   edi: 00000020   ebp: c063fdf4   esp: c063fdb8
> ds: 007b   es: 007b   ss: 0069
> Process swapper (pid: 1, threadinfo=c063e000 task=c00dca40)
> Stack: c12173e0 c12173e0 c12173e0 c121741c 00000000 00000080 00000000
> 00000000
>         00000000 00000000 00000000 00000000 c1217d40 c12173e0 00000000
> c063fe24
>         c011e736 c1217d40 00000000 c063fe14 00000002 c12173e0 c063fe24
> c011cce1
> Call Trace:
>   [<c011e736>] load_balance_newidle+0x36/0xa0
>   [<c011cce1>] deactivate_task+0x21/0x30
>   [<c041fafe>] schedule+0x82e/0xc90
>   [<c0124381>] release_console_sem+0xc1/0x100
>   [<c012415d>] vprintk+0x19d/0x250
>   [<c0223e9b>] scnprintf+0x2b/0x40
>   [<c0420164>] wait_for_completion+0x94/0xe0
>   [<c011f0d0>] default_wake_function+0x0/0x20
>   [<c011f0d0>] default_wake_function+0x0/0x20
>   [<c011d39d>] wake_up_process+0x1d/0x30
>   [<c0120aa3>] cpu_attach_domain+0x83/0xe0
>   [<c0120bfd>] init_sched_build_groups+0xfd/0x170
>   [<c012103a>] arch_init_sched_domains+0x36a/0x480
>   [<c010410a>] init+0x8a/0x1b0
>   [<c0104080>] init+0x0/0x1b0
>   [<c0107c85>] kernel_thread_helper+0x5/0x10
> Code: 40 04 c7 45 d8 00 00 00 00 c7 45 e0 00 00 00 00 89 45 e8 c7  
> 45 dc
> 00 00 00 00 c7 45 e4 00 00 00 00 8d 74 26 00 8b 4d 0c 8b 55 e8 <0f> a3
> 4a 04 19 d2 89 55 d4 8b 5d e8 31 f6 b9 01 00 00 00 83 c3
>   <0>Kernel panic - not syncing: Attempted to kill init!
>
> -Chris

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