http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=232
Summary: Atropos causes CPU0 FATAL TRAP 14 on Opteron 244
Product: Xen
Version: 2.0
Platform: x86-64
OS/Version: Linux-2.6
Status: NEW
Severity: critical
Priority: P2
Component: Hypervisor
AssignedTo: xen-bugs@xxxxxxxxxxxxxxxxxxx
ReportedBy: pcoleman@xxxxxxxxxxxx
Hey,
I am having issues with the atropos scheduler; specifically the xen kernel
crashes and burns directly before loading a linux-2.6 dom0. This only occurs
when I use sched=atropos on the GRUB xeb line -- xen operates brilliantly using
no sched= directive.
I am using the XEN 2.0.7 Debian package found here:
http://lists.xensource.com/archives/html/xen-users/2005-08/msg00643.html.
Hardware:
One Opteron 244 on a Tyan Tiger K8W motherboard
(http://www.tyan.com/products/html/tigerk8w_spec.html for specs)
1GB RAM in one stick
3x200GB SATA drives
I am consistently able to reproduce this by adding sched=atropos to my xen boot
line in grub.
Complete output follows.
Thanks,
Patrick
BEGIN KERNEL OUTPUT
++++++++++++++++++++++++++++++++++++
################################################################################
# #
GNU GRUB version 0.95 (638K lower / 1047488K upper memory)
kernel /boot/xen-2.0.7.gz dom0_mem=75000 com1=115200,8n1 com2=115200,8n1 consol
e=vga,com1,com2 sched=atropos***********************************************
[Multiboot-elf, <0x100000:0x3f0a0:0x35f60>, shtab=0x175078, entry=0x100000]
module /boot/xen/dom0/vmlinuz-2.6.11-xen0 root=/dev/md0 console=/dev/ttyS0,1152
00n8 console=tty0x 2.6.11 * !
__ __ ____ ___ _____ de) *
\ \/ /___ _ __ |___ \ / _ \|___ | *
\ // _ \ '_ \ __) || | | | / / *
/ \ __/ | | | / __/ | |_| | / / *
/_/\_\___|_| |_| |_____(_)___(_)_/ *
*
http://www.cl.cam.ac.uk/netos/xen *
University of Cambridge Computer Laboratory *
* *
Xen version 2.0.7 (edwarddes@) (gcc version 3.3.5 (Debian 1:3.3.5-13)) Sun Aug5
Latest ChangeSet: * keys to select which entry is highlighted.
Press enter to boot the selected OS, 'e' to edit the
(XEN) Physical RAM map:ooting, or 'c' for a command-line.
(XEN) 0000000000000000 - 000000000009f800 (usable)
(XEN) 000000000009f800 - 00000000000a0000 (reserved)
(XEN) 00000000000e0000 - 0000000000100000 (reserved)
(XEN) 0000000000100000 - 000000003fff0000 (usable)
(XEN) 000000003fff0000 - 000000003ffff000 (ACPI data)
(XEN) 000000003ffff000 - 0000000040000000 (ACPI NVS)
(XEN) 00000000ff780000 - 0000000100000000 (reserved)
(XEN) System RAM: 1023MB (1048124kB)
(XEN) Xen heap: 10MB (10764kB)
(XEN) CPU0: Before vendor init, caps: 078bfbff e1d3fbff 00000000, vendor = 2
(XEN) CPU caps: 078bfbff e1d3fbff 00000000 00000000
(XEN) found SMP MP-table at 000ff780
(XEN) ACPI: RSDP (v000 ACPIAM ) @ 0x000f6cf0
(XEN) ACPI: RSDT (v001 A M I OEMRSDT 0x06000514 MSFT 0x00000097) @ 0x3fff0000
(XEN) ACPI: FADT (v001 A M I OEMFACP 0x06000514 MSFT 0x00000097) @ 0x3fff0200
(XEN) ACPI: MADT (v001 A M I OEMAPIC 0x06000514 MSFT 0x00000097) @ 0x3fff0380
(XEN) ACPI: OEMB (v001 A M I OEMBIOS 0x06000514 MSFT 0x00000097) @ 0x3ffff040
(XEN) ACPI: ASF! (v001 AMIASF AMDSTRET 0x00000001 INTL 0x02002026) @ 0x3fff3990
(XEN) ACPI: DSDT (v001 0AAAA 0AAAA000 0x00000000 INTL 0x02002026) @ 0x00000000
(XEN) ACPI: Local APIC address 0xfee00000
(XEN) ACPI: LAPIC (acpi_id[0x01] lapic_id[0x00] enabled)
(XEN) Processor #0 Unknown CPU [15:5] APIC version 16
(XEN) ACPI: LAPIC (acpi_id[0x02] lapic_id[0x81] disabled)
(XEN) Processor #129 invalid (max 16)
(XEN) ACPI: LAPIC (acpi_id[0x03] lapic_id[0x82] disabled)
(XEN) Processor #130 invalid (max 16)
(XEN) ACPI: LAPIC (acpi_id[0x04] lapic_id[0x83] disabled)
(XEN) Processor #131 invalid (max 16)
(XEN) Using ACPI for processor (LAPIC) configuration information
(XEN) Intel MultiProcessor Specification v1.1
(XEN) Virtual Wire compatibility mode.
(XEN) OEM ID: TYAN Product ID: S2875 APIC at: 0xFEE00000
(XEN) I/O APIC #1 Version 17 at 0xFEC00000.
(XEN) Enabling APIC mode: Flat. Using 1 I/O APICs
(XEN) Processors: 1
(XEN) Using scheduler: Atropos Soft Real Time Scheduler (atropos)
(XEN) Initializing CPU#0
(XEN) Detected 1793.105 MHz processor.
(XEN) CPU0: Before vendor init, caps: 078bfbff e1d3fbff 00000000, vendor = 2
(XEN) CPU caps: 078bfbff e1d3fbff 00000000 00000000
(XEN) CPU0 booted
(XEN) enabled ExtINT on CPU#0
(XEN) ESR value before enabling vector: 00000004
(XEN) ESR value after enabling vector: 00000000
(XEN) Error: only one processor found.
(XEN) ENABLING IO-APIC IRQs
(XEN) Setting 1 in the phys_id_present_map
(XEN) ...changing IO-APIC physical APIC ID to 1 ... ok.
(XEN) init IO_APIC IRQs
(XEN) ..TIMER: vector=0x41 pin1=2 pin2=0
(XEN) Using local APIC timer interrupts.
(XEN) Calibrating APIC timer for CPU0...
(XEN) ..... CPU speed is 1793.0300 MHz.
(XEN) ..... Bus speed is 199.2255 MHz.
(XEN) ..... bus_scale = 0x0000CC06
(XEN) Time init:
(XEN) .... System Time: 11480821ns
(XEN) .... cpu_freq: 00000000:6AE09D08
(XEN) .... scale: 00000001:1D89C6C0
(XEN) .... Wall Clock: 1126810172s 130000us
(XEN) PCI: PCI BIOS revision 2.10 entry at 0xf0031, last bus=2
(XEN) PCI: Using configuration type 1
(XEN) PCI: Probing PCI hardware
(XEN) PCI: Probing PCI hardware (bus 00)
(XEN) PCI: Using IRQ router default [1022/746b] at 00:07.3
(XEN) PCI->APIC IRQ transform: (B0,I7,P3) -> 19
(XEN) PCI->APIC IRQ transform: (B0,I7,P1) -> 17
(XEN) PCI->APIC IRQ transform: (B2,I0,P3) -> 19
(XEN) PCI->APIC IRQ transform: (B2,I0,P3) -> 19
(XEN) PCI->APIC IRQ transform: (B2,I3,P0) -> 18
(XEN) PCI->APIC IRQ transform: (B2,I5,P0) -> 19
(XEN) PCI->APIC IRQ transform: (B2,I10,P0) -> 17
(XEN) PCI->APIC IRQ transform: (B2,I11,P0) -> 17
(XEN) PCI->APIC IRQ transform: (B2,I11,P1) -> 18
(XEN) PCI->APIC IRQ transform: (B2,I11,P2) -> 19
(XEN) PCI: Via IRQ fixup for 02:0b.1, from 9 to 2
(XEN) PCI: Via IRQ fixup for 02:0b.0, from 10 to 1
(XEN) mtrr: v2.0 (20020519)
(XEN) *** LOADING DOMAIN 0 ***
(XEN) Xen-ELF header found: 'GUEST_OS=linux,GUEST_VER=2.6,XEN_VER=2.0,VIRT_BASE'
(XEN) PHYSICAL MEMORY ARRANGEMENT:
(XEN) Kernel image: 00c00000->0103f808
(XEN) Initrd image: 00000000->00000000
(XEN) Dom0 alloc.: 01400000->05d3e000
(XEN) VIRTUAL MEMORY ARRANGEMENT:
(XEN) Loaded kernel: c0100000->c0570ac4
(XEN) Init. ramdisk: c0571000->c0571000
(XEN) Phys-Mach map: c0571000->c05834f8
(XEN) Page tables: c0584000->c0587000
(XEN) Start info: c0587000->c0588000
(XEN) Boot stack: c0588000->c0589000
(XEN) TOTAL: c0000000->c0800000
(XEN) ENTRY ADDRESS: c0100000
(XEN) Scrubbing DOM0 RAM: .done.
(XEN) Scrubbing Free RAM: ...........done.
(XEN) *** Serial input -> DOM0 (type 'CTRL-a' three times to switch input to Xe.
(XEN) CPU: 0
(XEN) EIP: 0808:[<fc50ad60>]
(XEN) EFLAGS: 00210086
(XEN) eax: fcffd128 ebx: 4ea66f03 ecx: fcffd120 edx: fcffd120
(XEN) esi: 00000000 edi: fc530600 ebp: fcffd141 esp: fc503bc0
(XEN) ds: 0810 es: 0810 fs: 0810 gs: 0810 ss: 0810
(XEN) Stack trace from ESP=fc503bc0:
(XEN) c0571000 00000000 00000000 00200082 00871260 00000000 00871260 00000000
(XEN) 51a69c26 00000000 00000000 523f2e8e 4ea66f03 fcffd141 51a69dc3 000
(XEN) 008713d2 00000000 008713d2 00200082 51a69dc3 00000000 fcff7000 fc5
(XEN) 51a69dc3 00000000 fc530600 [fc50cff5] fc503c50 51a69dc3 00000000 0
(XEN) 00000000 00000000 00000000 [fc50b545] 51a69bd0 00000000 00000004 f
(XEN) fc544ea0 00000000 51f2d47b 00000000 00000000 00000001 ffffffff [fc
(XEN) 00200286 00000001 fc530600 [fc515ff5] fcff99e0 fc52f242 fc52f242 f
(XEN) fcff99e0 fc52f242 05d3e000 00c00000 0043f808 00000000 00000000 fc4
(XEN) 00000000 00000000 00000000 0000008c 000544a4 000000a8 00100000 000
(XEN) 000000a8 00000007 00000007 0103f808 00c00000 000003ff fc57d000 fc4
(XEN) 00000000 00000000 0009f800 00000000 00000001 0009f800 00000000 000
(XEN) 00000000 00000002 000e0000 00000000 00020000 00000000 00000002 001
(XEN) 00000000 3fef0000 00000000 00000001 3fff0000 00000000 0000f000 000
(XEN) 00000003 3ffff000 00000000 00001000 00000000 00000004 ff780000 000
(XEN) 00880000 00000000 00000002 00000000 00000000 00000000 00000000 000
(XEN) 00000000 00000000 00000000 00000000 00000000 00000000 00000000 000
(XEN) 00000000 00000000 00000000 00000000 00000000 00000000 00000000 000
(XEN) 00000000 00000000 00000000 00000000 00000000 00000000 00000000 000
(XEN) 00000000 00000000 00000000 00000000 00000000 00000000 00000000 000
(XEN) 00000000 00000000 00000000 00000000 00000000 00000000 00000000 000
(XEN) Call Trace from ESP=fc503bc0: [<fc50cff5>] [<fc50b545>] [<fc50e9c2>] [<fc
(XEN) Faulting linear address might be 00000008
(XEN) ************************************
(XEN) CPU0 FATAL TRAP 14 (page fault), ERROR_CODE 0000, IN INTERRUPT CONTEXT.
(XEN) System shutting down -- need manual reset.
(XEN) ************************************
++++++++++++++++++++++++++++++++++++
END KERNEL OUTPUT
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