A question about Mini-OS config file

A question about Mini-OS config file

[Bei Guan]

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Hello, erveryone,

   I try to compile and start the Mini-OS wm which is in the xen-4.0.0
srouce code. I have setup a disk in the config file (e.g. disk = [
'file:/root/tmp/mdisk,hda,r' ] ). According to the README file, the Mini-OS
should loop reading the "mdisk" file. However, when I start the vm, it quit
and can not read the file. Is there some bug in the Mini-OS source code? Or
I have a bad operation? Thanks.

   The output message of starting the Mini-OS:

[root@localhost mini-os]# xm create domain_config  -c
Using config file "./domain_config".
Started domain Mini-OS (id=14)
Domain has already finished
Could not start console

   The whole config file is:
---------------------
kernel = "mini-os.gz"
memory = 32
name = "Mini-OS"
on_crash = 'destroy'

disk = [ 'file:/root/tmp/mdisk,hda,r' ]
---------------------

Thanks a lot.
Gavin

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Re: A question about Mini-OS config file

[Samuel Thibault]

Bei Guan, le Fri 10 Sep 2010 16:35:35 +0800, a écrit :
> [root@localhost mini-os]# xm create domain_config  -c
> Using config file "./domain_config".
> Started domain Mini-OS (id=14)
> Domain has already finished
> Could not start console

Also check for messages in xm dmesg.

Samuel

Re: A question about Mini-OS config file

[Bei Guan]

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Samuel, thank you for your reply very much. But I also can not find the
contents of the file /root/tmp/mdisk in the xm dmesg.

Following is the whole output of xm dmesg:

[root@localhost config]# xm dmesg
 __  __            _  _    ___   ___
 \ \/ /___ _ __   | || |  / _ \ / _ \
  \  // _ \ '_ \  | || |_| | | | | | |
  /  \  __/ | | | |__   _| |_| | |_| |
 /_/\_\___|_| |_|    |_|(_)___(_)___/

(XEN) Xen version 4.0.0 (root@tajen.edu.tw) (gcc 版本 4.1.2 20070925 (Red Hat
4.1.2-33)) Mon Jul  5 16:44:08 CST 2010
(XEN) Latest ChangeSet: unavailable
(XEN) Command line: iommu=1
(XEN) Video information:
(XEN)  VGA is text mode 80x25, font 8x16
(XEN)  VBE/DDC methods: V2; EDID transfer time: 1 seconds
(XEN) Disc information:
(XEN)  Found 2 MBR signatures
(XEN)  Found 2 EDD information structures
(XEN) Xen-e820 RAM map:
(XEN)  0000000000000000 - 000000000009a800 (usable)
(XEN)  00000000000f0000 - 0000000000100000 (reserved)
(XEN)  0000000000100000 - 00000000cd9ffc00 (usable)
(XEN)  00000000cd9ffc00 - 00000000cda53c00 (ACPI NVS)
(XEN)  00000000cda53c00 - 00000000cda55c00 (ACPI data)
(XEN)  00000000cda55c00 - 00000000d0000000 (reserved)
(XEN)  00000000e0000000 - 00000000f0000000 (reserved)
(XEN)  00000000fec00000 - 00000000fed00400 (reserved)
(XEN)  00000000fed20000 - 00000000feda0000 (reserved)
(XEN)  00000000fee00000 - 00000000fef00000 (reserved)
(XEN)  00000000ffb00000 - 0000000100000000 (reserved)
(XEN)  0000000100000000 - 0000000128000000 (usable)
(XEN) System RAM: 3907MB (4001356kB)
(XEN) ACPI: RSDP 000FEC00, 0024 (r2 DELL  )
(XEN) ACPI: XSDT 000FC7CB, 009C (r1 DELL    B10K          15 ASL        61)
(XEN) ACPI: FACP 000FC8FB, 00F4 (r3 DELL    B10K          15 ASL        61)
(XEN) ACPI: DSDT FFE9CFF8, 54AD (r1   DELL    dt_ex     1000 INTL 20050624)
(XEN) ACPI: FACS CD9FFC00, 0040
(XEN) ACPI: SSDT FFEA25C4, 00AA (r1   DELL    st_ex     1000 INTL 20050624)
(XEN) ACPI: APIC 000FC9EF, 0092 (r1 DELL    B10K          15 ASL        61)
(XEN) ACPI: BOOT 000FCA81, 0028 (r1 DELL    B10K          15 ASL        61)
(XEN) ACPI: ASF! 000FCAA9, 0096 (r32 DELL    B10K          15 ASL        61)
(XEN) ACPI: MCFG 000FCB3F, 003E (r1 DELL    B10K          15 ASL        61)
(XEN) ACPI: HPET 000FCB7D, 0038 (r1 DELL    B10K          15 ASL        61)
(XEN) ACPI: TCPA 000FCDD9, 0032 (r1 DELL    B10K          15 ASL        61)
(XEN) ACPI: DMAR 000FCE0B, 0120 (r1 DELL    B10K          15 ASL        61)
(XEN) ACPI: SLIC 000FCBB5, 0176 (r1 DELL    B10K          15 ASL        61)
(XEN) ACPI: SSDT CD9FFC40, 01B7 (r1 DpgPmm  Cpu0Ist       11 INTL 20050624)
(XEN) ACPI: SSDT CDA00049, 01B7 (r1 DpgPmm  Cpu1Ist       11 INTL 20050624)
(XEN) ACPI: SSDT CDA00452, 01B7 (r1 DpgPmm  Cpu2Ist       11 INTL 20050624)
(XEN) ACPI: SSDT CDA0085B, 01B7 (r1 DpgPmm  Cpu3Ist       11 INTL 20050624)
(XEN) ACPI: SSDT CDA00C64, 0190 (r1 DpgPmm    CpuPm       10 INTL 20050624)
(XEN) Xen heap: 8MB (8852kB)
(XEN) Domain heap initialised
(XEN) Processor #0 7:7 APIC version 20
(XEN) Processor #1 7:7 APIC version 20
(XEN) Processor #2 7:7 APIC version 20
(XEN) Processor #3 7:7 APIC version 20
(XEN) IOAPIC[0]: apic_id 8, version 32, address 0xfec00000, GSI 0-23
(XEN) Enabling APIC mode:  Flat.  Using 1 I/O APICs
(XEN) Using scheduler: SMP Credit Scheduler (credit)
(XEN) Detected 2660.096 MHz processor.
(XEN) Initing memory sharing.
(XEN) VMX: Supported advanced features:
(XEN)  - APIC MMIO access virtualisation
(XEN)  - APIC TPR shadow
(XEN)  - Virtual NMI
(XEN)  - MSR direct-access bitmap
(XEN) HVM: ASIDs disabled.
(XEN) HVM: VMX enabled
(XEN) xsave_init: cpu0: cntxt_max_size: 0x240 and states: 00000000:00000003
(XEN) xsave_init: using cntxt_size: 0x240 and states: 00000000:00000003
(XEN) Intel VT-d Snoop Control not supported.
(XEN) Intel VT-d DMA Passthrough not supported.
(XEN) Intel VT-d Queued Invalidation not supported.
(XEN) Intel VT-d Interrupt Remapping not supported.
(XEN) I/O virtualisation enabled
(XEN) I/O virtualisation for PV guests disabled
(XEN) xsave_init: cpu1: cntxt_max_size: 0x240 and states: 00000000:00000003
(XEN) xsave_init: cpu2: cntxt_max_size: 0x240 and states: 00000000:00000003
(XEN) xsave_init: cpu3: cntxt_max_size: 0x240 and states: 00000000:00000003
(XEN) Total of 4 processors activated.
(XEN) ENABLING IO-APIC IRQs
(XEN)  -> Using new ACK method
(XEN) checking TSC synchronization across 4 CPUs: passed.
(XEN) Platform timer is 14.318MHz HPET
(XEN) Brought up 4 CPUs
(XEN) *** LOADING DOMAIN 0 ***
(XEN)  Xen  kernel: 32-bit, PAE, lsb
(XEN)  Dom0 kernel: 32-bit, PAE, lsb, paddr 0xc0100000 -> 0xc04cd5bc
(XEN) PHYSICAL MEMORY ARRANGEMENT:
(XEN)  Dom0 alloc.:   000000003c000000->000000003e000000 (951018 pages to be
allocated)
(XEN) VIRTUAL MEMORY ARRANGEMENT:
(XEN)  Loaded kernel: c0100000->c04cd5bc
(XEN)  Init. ramdisk: c04ce000->c0bcf400
(XEN)  Phys-Mach map: c0bd0000->c0f78ba8
(XEN)  Start info:    c0f79000->c0f7947c
(XEN)  Page tables:   c0f7a000->c0f89000
(XEN)  Boot stack:    c0f89000->c0f8a000
(XEN)  TOTAL:         c0000000->c1400000
(XEN)  ENTRY ADDRESS: c0100000
(XEN) Dom0 has maximum 4 VCPUs
(XEN) Scrubbing Free RAM: .done.
(XEN) Xen trace buffers: disabled
(XEN) Std. Loglevel: Errors and warnings
(XEN) Guest Loglevel: Nothing (Rate-limited: Errors and warnings)
(XEN) Xen is relinquishing VGA console.
(XEN) *** Serial input -> DOM0 (type 'CTRL-a' three times to switch input to
Xen)
(XEN) Freed 132kB init memory.






2010/9/11 Samuel Thibault <samuel.thibault@ens-lyon.org>

> Bei Guan, le Fri 10 Sep 2010 16:35:35 +0800, a écrit :
> > [root@localhost mini-os]# xm create domain_config  -c
> > Using config file "./domain_config".
> > Started domain Mini-OS (id=14)
> > Domain has already finished
> > Could not start console
>
> Also check for messages in xm dmesg.
>
> Samuel
>

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