Re: [Xen-users] Re: System reboots after "Scrubbing free RAM" Xen 4.0.1 linux 2.6.37-rc3

[Nathan March <nathan@xxxxxx>]

Not certain, but I may have encountered the same issue as you. Running 
the the latest from jeremy's hg/git it crashes right after scrubbing.
Anyone have any insight? Optimizing size is turned on, I've also tried 
various dom0_mem settings to no avail.

root (hd0,0)
 Filesystem type is ext2fs, partition type 0xfd
kernel /boot/xen.gz console=com1,com2,vga com1=115200,8n1 
com2=115200,8n1 dom0_ mem=1024M dom0_max_vcpus=1 dom0_vcpus_pin=true 
earlyprintk=xen
   [Multiboot-elf, <0x100000:0x163000:0x145000>, shtab=0x3a8078, 
entry=0x100000 ]
module /boot/vmlinuz root=/dev/md0 max_loop=128 console=tty0 
console=ttyS0,1152
00 console=ttyS1,115200
__  __            _  _    ___   ____              ____
 \ \/ /___ _ __   | || |  / _ \ |___ \    _ __ ___|___ \    _ __  _ __ ___
  \  // _ \ '_ \  | || |_| | | |  __) |__| '__/ __| __) |__| '_ \| '__/ 
_ \
  /  \  __/ | | | |__   _| |_| | / __/|__| | | (__ / __/|__| |_) | | |  
__/
 /_/\_\___|_| |_|    |_|(_)___(_)_____|  |_|  \___|_____|  | .__/|_|  
\___|
                                                           |_|
(XEN) Xen version 4.0.2-rc2-pre (root@xxxxxxxxx) (gcc version 4.3.4 
(Gentoo 4.3.4 p1.1, pie-10.1.5) ) Mon Jan 17 15:09:50 PST 2011
(XEN) Latest ChangeSet: Fri Jan 14 08:17:07 2011 +0000 21436:619a52d94f89
(XEN) Bootloader: GNU GRUB 0.97
(XEN) Command line: console=com1,com2,vga com1=115200,8n1 
com2=115200,8n1 dom0_mem=1024M dom0_max_vcpus=1 dom0_vcpus_pin=true 
earlyprintk=xen
(XEN) Video information:
(XEN)  VGA is text mode 80x25, font 8x16
(XEN)  VBE/DDC methods: none; EDID transfer time: 0 seconds
(XEN)  EDID info not retrieved because no DDC retrieval method detected
(XEN) Disc information:
(XEN)  Found 3 MBR signatures
(XEN)  Found 3 EDD information structures
(XEN) Xen-e820 RAM map:
(XEN)  0000000000000000 - 000000000009dc00 (usable)
(XEN)  000000000009dc00 - 00000000000a0000 (reserved)
(XEN)  00000000000e6000 - 0000000000100000 (reserved)
(XEN)  0000000000100000 - 00000000bf760000 (usable)
(XEN)  00000000bf76e000 - 00000000bf770000 type 9
(XEN)  00000000bf770000 - 00000000bf77e000 (ACPI data)
(XEN)  00000000bf77e000 - 00000000bf7d0000 (ACPI NVS)
(XEN)  00000000bf7d0000 - 00000000bf7e0000 (reserved)
(XEN)  00000000bf7ec000 - 00000000c0000000 (reserved)
(XEN)  00000000e0000000 - 00000000f0000000 (reserved)
(XEN)  00000000fee00000 - 00000000fee01000 (reserved)
(XEN)  00000000ffc00000 - 0000000100000000 (reserved)
(XEN)  0000000100000000 - 0000000c40000000 (usable)
(XEN) ACPI: RSDP 000F9FB0, 0024 (r2 ACPIAM)
(XEN) ACPI: XSDT BF770100, 008C (r1 SMCI            20101005 MSFT       97)
(XEN) ACPI: FACP BF770290, 00F4 (r3 100510 FACP1516 20101005 MSFT       97)
(XEN) ACPI: DSDT BF7706A0, 5A4A (r1  30007 30007000        0 INTL 20051117)
(XEN) ACPI: FACS BF77E000, 0040
(XEN) ACPI: APIC BF770390, 011E (r1 100510 APIC1516 20101005 MSFT       97)
(XEN) ACPI: MCFG BF7704B0, 003C (r1 100510 OEMMCFG  20101005 MSFT       97)
(XEN) ACPI: SLIT BF7704F0, 0030 (r1 100510 OEMSLIT  20101005 MSFT       97)
(XEN) ACPI: OEMB BF77E040, 0082 (r1 100510 OEMB1516 20101005 MSFT       97)
(XEN) ACPI: SRAT BF77A6A0, 0190 (r1 100510 OEMSRAT         1 INTL        1)
(XEN) ACPI: HPET BF77A830, 0038 (r1 100510 OEMHPET  20101005 MSFT       97)
(XEN) ACPI: DMAR BF77E0D0, 0130 (r1    AMI  OEMDMAR        1 MSFT       97)
(XEN) ACPI: SSDT BF780AC0, 12C9 (r1 DpgPmm    CpuPm       12 INTL 20051117)
(XEN) ACPI: EINJ BF77A870, 0130 (r1  AMIER AMI_EINJ 20101005 MSFT       97)
(XEN) ACPI: BERT BF77AA00, 0030 (r1  AMIER AMI_BERT 20101005 MSFT       97)
(XEN) ACPI: ERST BF77AA30, 01B0 (r1  AMIER AMI_ERST 20101005 MSFT       97)
(XEN) ACPI: HEST BF77ABE0, 00A8 (r1  AMIER ABC_HEST 20101005 MSFT       97)
(XEN) System RAM: 49142MB (50322420kB)
(XEN) Domain heap initialised DMA width 32 bits
(XEN) Processor #0 6:12 APIC version 21
(XEN) Processor #2 6:12 APIC version 21
(XEN) Processor #4 6:12 APIC version 21
(XEN) Processor #16 6:12 APIC version 21
(XEN) Processor #18 6:12 APIC version 21
(XEN) Processor #20 6:12 APIC version 21
(XEN) Processor #32 6:12 APIC version 21
(XEN) Processor #34 6:12 APIC version 21
(XEN) Processor #36 6:12 APIC version 21
(XEN) Processor #48 6:12 APIC version 21
(XEN) Processor #50 6:12 APIC version 21
(XEN) Processor #52 6:12 APIC version 21
(XEN) IOAPIC[0]: apic_id 1, version 32, address 0xfec00000, GSI 0-23
(XEN) IOAPIC[1]: apic_id 3, version 32, address 0xfec8a000, GSI 24-47
(XEN) Enabling APIC mode:  Phys.  Using 2 I/O APICs
(XEN) Using scheduler: SMP Credit Scheduler (credit)
(XEN) Detected 2266.801 MHz processor.
(XEN) Initing memory sharing.
(XEN) VMX: Supported advanced features:
(XEN)  - APIC MMIO access virtualisation
(XEN)  - APIC TPR shadow
(XEN)  - Extended Page Tables (EPT)
(XEN)  - Virtual-Processor Identifiers (VPID)
(XEN)  - Virtual NMI
(XEN)  - MSR direct-access bitmap
(XEN)  - Unrestricted Guest
(XEN) EPT supports 2MB super page.
(XEN) HVM: ASIDs enabled.
(XEN) HVM: VMX enabled
(XEN) HVM: Hardware Assisted Paging detected.
(XEN) Intel VT-d Snoop Control enabled.
(XEN) Intel VT-d Dom0 DMA Passthrough not enabled.
(XEN) Intel VT-d Queued Invalidation enabled.
(XEN) Intel VT-d Interrupt Remapping not enabled.
(XEN) I/O virtualisation enabled
(XEN)  - Dom0 mode: Relaxed
(XEN) Enabled directed EOI with ioapic_ack_old on!
(XEN) Total of 12 processors activated.
(XEN) ENABLING IO-APIC IRQs
(XEN)  -> Using old ACK method
(XEN) TSC is reliable, synchronization unnecessary
(XEN) Platform timer is 14.318MHz HPET
N) Allocated console ring of 32 KiB.
(XEN) Brought up 12 CPUs
(XEN) *** LOADING DOMAIN 0 ***
(XEN)  Xen  kernel: 64-bit, lsb, compat32
(XEN)  Dom0 kernel: 64-bit, PAE, lsb, paddr 0x1000000 -> 0x1c89000
(XEN) PHYSICAL MEMORY ARRANGEMENT:
(XEN)  Dom0 alloc.:   0000000438000000->000000043a000000 (253952 pages 
to be allocated)
(XEN) VIRTUAL MEMORY ARRANGEMENT:
(XEN)  Loaded kernel: ffffffff81000000->ffffffff81c89000
(XEN)  Init. ramdisk: ffffffff81c89000->ffffffff81c89000
(XEN)  Phys-Mach map: ffffffff81c89000->ffffffff81e89000
(XEN)  Start info:    ffffffff81e89000->ffffffff81e894b4
(XEN)  Page tables:   ffffffff81e8a000->ffffffff81e9d000
(XEN)  Boot stack:    ffffffff81e9d000->ffffffff81e9e000
(XEN)  TOTAL:         ffffffff80000000->ffffffff82000000
(XEN)  ENTRY ADDRESS: ffffffff81a00200
(XEN) Dom0 has maximum 1 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 176kB init memory.
mapping kernel into physical memory
Xen: setup ISA identity maps
about to get started...
(XEN) d0:v0: unhandled page fault (ec=0000)
(XEN) Pagetable walk from ffffffff81c984e8:
(XEN)  L4[0x1ff] = 0000000439003067 0000000000001003
(XEN)  L3[0x1fe] = 0000000439007067 0000000000001007
(XEN)  L2[0x00e] = 0000000000000000 ffffffffffffffff
(XEN) domain_crash_sync called from entry.S
(XEN) Domain 0 (vcpu#0) crashed on cpu#0:
(XEN) ----[ Xen-4.0.2-rc2-pre  x86_64  debug=n  Not tainted ]----
(XEN) CPU:    0
(XEN) RIP:    e033:[<ffffffff81037544>]
(XEN) RFLAGS: 0000000000000206   EM: 1   CONTEXT: pv guest
(XEN) rax: ffffffff81c98000   rbx: 8000000001e9d063   rcx: 000000000000000f
(XEN) rdx: 0000000000000000   rsi: 0000000001e9d000   rdi: 000000000000009d
(XEN) rbp: ffffffff81919b78   rsp: ffffffff81919b30   r8:  000000000000000e
(XEN) r9:  000000000000000f   r10: 000000000000000f   r11: 0000000001e9d000
(XEN) r12: ffffffff81a8a000   r13: 0000000000000000   r14: 0000000000000001
(XEN) r15: 0000000001e9d000   cr0: 000000008005003b   cr4: 00000000000026f0
(XEN) cr3: 0000000439001000   cr2: ffffffff81c984e8
(XEN) ds: 0000   es: 0000   fs: 0000   gs: 0000   ss: e02b   cs: e033
(XEN) Guest stack trace from rsp=ffffffff81919b30:
(XEN)    000000000000000f 0000000001e9d000 0000000000000000 ffffffff81037544
(XEN)    000000010000e030 0000000000010006 ffffffff81919b78 000000000000e02b
(XEN)    ffffffff81919bc0 ffffffff81919b88 ffffffff8103755c ffffffff81919ba0
(XEN)    ffffffff8103765e 8000000001e9d063 ffffffff81919bc0 ffffffff81037def
(XEN)    000000000000000f ffffffffff400000 ffffffff81919c10 ffffffff810373cf
(XEN)    0000000001e9d000 000000000000000f 000000000000000f 000000000000000e
(XEN)    8000000001e9d063 0000000001e9d000 8000000000000163 0000000340000000
(XEN)    ffffffff81919c48 ffffffff81a153af 0000000000000000 ffffffff81919cd8
(XEN)    ffffffff81079590 00000000000009ff 0000000001e9d000 ffffffff81919c88
(XEN)    ffffffff81a15595 8000000000000163 0000000001e9d000 8000000000000163
(XEN)    ffffffff81919d28 0000000100000000 0000000340000000 ffffffff81919c98
(XEN)    ffffffff81a15635 ffffffff81919cc8 ffffffff815f9e68 0000000000000000
(XEN)    0000000340000000 8000000000000163 ffff880001002020 ffffffff81919d58
(XEN)    ffffffff81a3c833 ffffffff81919db8 ffffffff8161c9f1 0000000000000000
(XEN)    0000000000000000 0000000340000000 ffff880001002000 0000000000000000
(XEN)    0000000000000004 0000000000000000 000000000000000f ffffffff8182b69f
(XEN)    0000000340000000 0000000000000001 ffffffff81001880 ffff880100000000
(XEN)    ffff880340000000 ffffffff81919db8 ffffffff81a3c9df ffffffff81919d88
(XEN)    0000000000000000 ffff880340000000 ffff880001007078 ffffffff81919db8
(XEN)    ffffffff81919e20 0000000000000001 0000000000000000 ffffffff81870344
(XEN) Domain 0 crashed: rebooting machine in 5 seconds.


- Nathan

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