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[Xen-devel] Kernel error with todays -unstable.

Got this changing from 2.6.16.13 to 2.6.16.29.. running .13 under the same xen binary works fine.
__ __ _____ ___ _ _ _ \ \/ /___ _ __ |___ / / _ \ _ _ _ __ ___| |_ __ _| |__ | | ___ \ // _ \ '_ \ |_ \| | | |__| | | | '_ \/ __| __/ _` | '_ \| |/ _ \ / \ __/ | | | ___) | |_| |__| |_| | | | \__ \ || (_| | |_) | | __/ /_/\_\___|_| |_| |____(_)___/ \__,_|_| |_|___/\__\__,_|_.__/|_|\___|
http://www.cl.cam.ac.uk/netos/xen University of Cambridge Computer Laboratory
Xen version 3.0-unstable (root@xxxxxxxxxxxxx) (gcc version 4.0.2 20051125 (Red Hat 4.0.2-8)) Thu Sep 21 14:00:38 EDT 2006 Latest ChangeSet: Thu Sep 21 15:04:29 2006 +0100 11560:5bc0e9a50687
(XEN) Command line: /xen.gz dom0_mem=262144 com1=9600,8n1 sched=credit (XEN) Physical RAM map: (XEN) 0000000000000000 - 000000000009fc00 (usable) (XEN) 000000000009fc00 - 00000000000a0000 (reserved) (XEN) 00000000000e0000 - 0000000000100000 (reserved) (XEN) 0000000000100000 - 00000000faff0000 (usable) (XEN) 00000000faff0000 - 00000000fafff000 (ACPI data) (XEN) 00000000fafff000 - 00000000fb000000 (ACPI NVS) (XEN) 00000000ff780000 - 0000000100000000 (reserved) (XEN) 0000000100000000 - 0000000200000000 (usable) (XEN) System RAM: 8111MB (8306236kB) (XEN) Xen heap: 9MB (10152kB) (XEN) PAE enabled, limit: 16 GB (XEN) found SMP MP-table at 000ff780 (XEN) DMI 2.3 present. (XEN) Using APIC driver default (XEN) ACPI: RSDP (v000 ACPIAM ) @ 0x000f6890 (XEN) ACPI: RSDT (v001 A M I OEMRSDT 0x06000429 MSFT 0x00000097) @ 0xfaff0000 (XEN) ACPI: FADT (v001 A M I OEMFACP 0x06000429 MSFT 0x00000097) @ 0xfaff0200 (XEN) ACPI: MADT (v001 A M I OEMAPIC 0x06000429 MSFT 0x00000097) @ 0xfaff0380 (XEN) ACPI: OEMB (v001 A M I OEMBIOS 0x06000429 MSFT 0x00000097) @ 0xfafff040 (XEN) ACPI: SRAT (v001 A M I OEMSRAT 0x06000429 MSFT 0x00000097) @ 0xfaff3320 (XEN) ACPI: ASF! (v001 AMIASF AMDSTRET 0x00000001 INTL 0x02002026) @ 0xfaff3410 (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 15:5 APIC version 16 (XEN) ACPI: LAPIC (acpi_id[0x02] lapic_id[0x01] enabled) (XEN) Processor #1 15:5 APIC version 16 (XEN) ACPI: IOAPIC (id[0x02] address[0xfec00000] gsi_base[0]) (XEN) IOAPIC[0]: apic_id 2, version 17, address 0xfec00000, GSI 0-23 (XEN) ACPI: IOAPIC (id[0x03] address[0xfebff000] gsi_base[24]) (XEN) IOAPIC[1]: apic_id 3, version 17, address 0xfebff000, GSI 24-27 (XEN) ACPI: IOAPIC (id[0x04] address[0xfebfe000] gsi_base[28]) (XEN) IOAPIC[2]: apic_id 4, version 17, address 0xfebfe000, GSI 28-31 (XEN) ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl) (XEN) ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl) (XEN) ACPI: IRQ0 used by override. (XEN) ACPI: IRQ2 used by override. (XEN) Enabling APIC mode: Flat. Using 3 I/O APICs (XEN) Using ACPI (MADT) for SMP configuration information (XEN) Using scheduler: SMP Credit Scheduler (credit) (XEN) Initializing CPU#0 (XEN) Detected 1793.652 MHz processor. (XEN) CPU0: AMD Flush Filter disabled (XEN) CPU: L1 I Cache: 64K (64 bytes/line), D cache 64K (64 bytes/line) (XEN) CPU: L2 Cache: 1024K (64 bytes/line) (XEN) Intel machine check architecture supported. (XEN) Intel machine check reporting enabled on CPU#0. (XEN) CPU0: AMD Opteron(tm) Processor 244 stepping 08 (XEN) Booting processor 1/1 eip 90000 (XEN) Initializing CPU#1 (XEN) CPU1: AMD Flush Filter disabled (XEN) CPU: L1 I Cache: 64K (64 bytes/line), D cache 64K (64 bytes/line) (XEN) CPU: L2 Cache: 1024K (64 bytes/line) (XEN) AMD: Disabling C1 Clock Ramping Node #0 (XEN) AMD: Disabling C1 Clock Ramping Node #1 (XEN) Intel machine check architecture supported. (XEN) Intel machine check reporting enabled on CPU#1. (XEN) CPU1: AMD Opteron(tm) Processor 244 stepping 08 (XEN) Total of 2 processors activated. (XEN) ENABLING IO-APIC IRQs (XEN) -> Using new ACK method (XEN) ..TIMER: vector=0xF0 apic1=0 pin1=2 apic2=0 pin2=0 (XEN) checking TSC synchronization across 2 CPUs: passed. (XEN) Platform timer is 1.193MHz PIT (XEN) Brought up 2 CPUs (XEN) Machine check exception polling timer started. (XEN) *** LOADING DOMAIN 0 *** (XEN) Domain 0 kernel supports features = { 0000001f }. (XEN) Domain 0 kernel requires features = { 00000000 }. (XEN) PHYSICAL MEMORY ARRANGEMENT: (XEN) Dom0 alloc.: 0000000004800000->0000000005000000 (63488 pages to be allo cated) (XEN) VIRTUAL MEMORY ARRANGEMENT: (XEN) Loaded kernel: c0100000->c05bd628 (XEN) Init. ramdisk: c05be000->c05be000 (XEN) Phys-Mach map: c05be000->c05fe000 (XEN) Start info: c05fe000->c05fe46c (XEN) Page tables: c05ff000->c0608000 (XEN) Boot stack: c0608000->c0609000 (XEN) TOTAL: c0000000->c0800000 (XEN) ENTRY ADDRESS: c0100000 (XEN) Dom0 has maximum 2 VCPUs (XEN) Scrubbing Free RAM: ...................................................... ............................done. (XEN) Xen trace buffers: disabled (XEN) Xen is relinquishing VGA console. (XEN) *** Serial input -> DOM0 (type 'CTRL-a' three times to switch input to Xen ). Linux version 2.6.16.29-xen (root@xxxxxxxxxxxxxxxxxx) (gcc version 4.0.2 2005112 5 (Red Hat 4.0.2-8)) #4 SMP Thu Sep 21 14:01:34 EDT 2006 BIOS-provided physical RAM map: Xen: 0000000000000000 - 0000000010800000 (usable) 0MB HIGHMEM available. 264MB LOWMEM available. NX (Execute Disable) protection: active found SMP MP-table at 000ff780 DMI 2.3 present. ACPI: LAPIC (acpi_id[0x01] lapic_id[0x00] enabled) ACPI: LAPIC (acpi_id[0x02] lapic_id[0x01] enabled) ACPI: IOAPIC (id[0x02] address[0xfec00000] gsi_base[0]) IOAPIC[0]: apic_id 2, version 17, address 0xfec00000, GSI 0-23 ACPI: IOAPIC (id[0x03] address[0xfebff000] gsi_base[24]) IOAPIC[1]: apic_id 3, version 17, address 0xfebff000, GSI 24-27 ACPI: IOAPIC (id[0x04] address[0xfebfe000] gsi_base[28]) IOAPIC[2]: apic_id 4, version 17, address 0xfebfe000, GSI 28-31 ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl) ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl) Enabling APIC mode: Flat. Using 3 I/O APICs Using ACPI (MADT) for SMP configuration information Allocating PCI resources starting at fb800000 (gap: fb000000:04780000) Built 1 zonelists Kernel command line: root=/dev/sda2 ro console=tty0 console=ttyS0,9600n8 max_loo p=256 elevator=cfq Enabling fast FPU save and restore... done. Enabling unmasked SIMD FPU exception support... done. Initializing CPU#0 PID hash table entries: 2048 (order: 11, 32768 bytes) Xen reported: 1793.773 MHz processor. Console: colour VGA+ 80x25 Dentry cache hash table entries: 65536 (order: 6, 262144 bytes) Inode-cache hash table entries: 32768 (order: 5, 131072 bytes) Software IO TLB enabled: Aperture: 64 megabytes Kernel range: 0x00000000c12bf000 - 0x00000000c52bf000 vmalloc area: d1000000-f53fe000, maxmem 2d7fe000 Memory: 187392k/270336k available (3314k kernel code, 74472k reserved, 961k data , 208k init, 0k highmem) Checking if this processor honours the WP bit even in supervisor mode... Ok. Calibrating delay using timer specific routine.. 4486.13 BogoMIPS (lpj=8972260) Mount-cache hash table entries: 512 CPU: L1 I Cache: 64K (64 bytes/line), D cache 64K (64 bytes/line) CPU: L2 Cache: 1024K (64 bytes/line) Checking 'hlt' instruction... OK. ENABLING IO-APIC IRQs Brought up 2 CPUs Initializing CPU#1 migration_cost=528 Grant table initialized NET: Registered protocol family 16 ACPI: bus type pci registered PCI: Using configuration type 1 ACPI: Subsystem revision 20060127 ACPI: Interpreter enabled ACPI: Using IOAPIC for interrupt routing ACPI: PCI Root Bridge [PCI0] (0000:00) ACPI: PCI Interrupt Link [LNKA] (IRQs 3 4 *5 6 7 9 10 11 12 14 15) ACPI: PCI Interrupt Link [LNKB] (IRQs 3 4 5 6 7 *9 10 11 12 14 15) ACPI: PCI Interrupt Link [LNKC] (IRQs 3 4 5 6 7 9 10 *11 12 14 15) ACPI: PCI Interrupt Link [LNKD] (IRQs 3 4 5 6 7 9 *10 11 12 14 15) xen_mem: Initialising balloon driver. SCSI subsystem initialized usbcore: registered new driver usbfs usbcore: registered new driver hub PCI: Using ACPI for IRQ routing PCI: If a device doesn't work, try "pci=routeirq". If it helps, post a report TC classifier action (bugs to netdev@xxxxxxxxxxxxxxx cc hadi@xxxxxxxxxx) PCI: Bridge: 0000:00:06.0 IO window: b000-bfff MEM window: fca00000-feafffff PREFETCH window: disabled. PCI: Bridge: 0000:00:0a.0 IO window: a000-afff MEM window: fb900000-fc9fffff PREFETCH window: ff500000-ff5fffff PCI: Bridge: 0000:00:0b.0 IO window: disabled. MEM window: disabled. PREFETCH window: disabled. IA-32 Microcode Update Driver: v1.14-xen <tigran@xxxxxxxxxxx> audit: initializing netlink socket (disabled) audit(1158849681.560:1): initialized Unable to handle kernel NULL pointer dereference at virtual address 00000000 printing eip: 00000000 005ff000 -> *pde = 00000000:04e00001 00600000 -> *pme = 00000000:00000000 Oops: 0010 [#1] SMP Modules linked in: CPU: 0 EIP: 0061:[<00000000>] Not tainted VLI EFLAGS: 00010246 (2.6.16.29-xen #4) EIP is at rest_init+0x3fefe000/0x23 eax: c010206f ebx: c0558f3c ecx: 00000000 edx: c5320000 esi: c01021c9 edi: 00000000 ebp: 0000ffbd esp: c53220e7 ds: 007b es: 007b ss: e021 Process swapper (pid: 1, threadinfo=c5320000 task=c05bea90) Stack: <0>00000000 00000000 00000000 00000000 00000000 00000000 00000000 0000000 0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 Call Trace: ======================= Unable to handle kernel NULL pointer dereference at virtual address 00000000 printing eip: c0111007 005ff000 -> *pde = 00000000:04e00001 00600000 -> *pme = 00000000:00000000 

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