From mboxrd@z Thu Jan 1 00:00:00 1970 From: Konrad Rzeszutek Wilk Subject: Re: crash in is_xen_swiotlb_buffer Date: Tue, 13 Mar 2012 13:35:04 -0400 Message-ID: <20120313173504.GB13033@phenom.dumpdata.com> References: <20120312163221.GA10987@eire.uk.xensource.com> <20120313142617.GA21587@eire.uk.xensource.com> <20120313165542.GH19228@phenom.dumpdata.com> <20120313171514.GB27160@eire.uk.xensource.com> <20120313173239.GA27920@eire.uk.xensource.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline In-Reply-To: <20120313173239.GA27920@eire.uk.xensource.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: Goncalo Gomes Cc: Konrad Rzeszutek Wilk , "xen-devel@lists.xensource.com" List-Id: xen-devel@lists.xenproject.org On Tue, Mar 13, 2012 at 05:32:39PM +0000, Goncalo Gomes wrote: > On Tue, 13 Mar 2012, Goncalo Gomes wrote: > > > On Tue, 13 Mar 2012, Konrad Rzeszutek Wilk wrote: > > > > > On Tue, Mar 13, 2012 at 02:26:17PM +0000, Goncalo Gomes wrote: > > > > On Tue, 13 Mar 2012, Konrad Rzeszutek Wilk wrote: > > > > > > > > > > > > > > On Mar 12, 2012 12:28 PM, "Goncalo Gomes" > wrote: > > > > > > > > > > > > I've compiled unstable c/s: 5d20d2f6ffed and linux 3.2.9 but I've been > > > > > > > > > > Do you get similar issues with Xen 4.1? > > > > > > > > Can't say I tried it, but I can give it a spin. Any specific tag? > > > > > > The latest. > > > > Missed that, I'll try with 4.1.2. > > Same behaviour as in 4.1.0-rc7-pre (tag 4.1.0-branch) and unstable. > > Boot log for 4.1.2 attached. > > Goncalo > > > Goncalo > > > > > > _______________________________________________ > > Xen-devel mailing list > > Xen-devel@lists.xen.org > > http://lists.xen.org/xen-devel > Script started on Tue 13 Mar 2012 17:21:22 GMT > goncalog@eire:~$ xenuse -t dt29 > [Enter `^Ec?' for help] > > PXELINUX 3.70 2008-06-30 Copyright (C) 1994-2008 H. Peter Anvin > boot: > Booting from local disk... > [?25lGNU GRUB version 1.98+20100804-14+squeeze1 > > +--------------------------------------------------------------------------+||||||||||||||||||||||+--------------------------------------------------------------------------+ > Use the ^ and v keys to select which entry is highlighted. > Press enter to boot the selected OS, 'e' to edit the commands > before booting or 'c' for a command-line. >  Debian GNU/Linux, with Linux 3.2.9-x86  Debian GNU/Linux, with Linux 3.2.9-x86 (recovery mode)  Debian GNU/Linux, with Linux 3.0.23-x86  Debian GNU/Linux, with Linux 3.0.23-x86 (recovery mode)  Debian GNU/Linux, with Linux 2.6.32.49-x86  Debian GNU/Linux, with Linux 2.6.32.49-x86 (recovery mode)  Debian GNU/Linux, with Linux 2.6.32-5-686-bigmem  Debian GNU/Linux, with Linux 2.6.32-5-686-bigmem (recovery mode)  X en 4 Linux 3.2.9 x86        The highlighted entry will be executed automatically in 300s.  The highlighted entry will be executed automatically in 299s.  The highlighted entry will be executed automatically in 298s.  The highlighted entry will be executed automatically in 297s.  The highlighted entry will be executed automatically in 296s.  The highlighted entry wi ll be executed automatically in 295s.  The highlighted entry will be executed automatically in 294s.  The highlighted entry will be executed automatically in 293s.  The highlighted entry will be executed automatically in 292s.  The highlighted entry will be executed automatically in 291s.  The highlighted entry will be executed automatically in 290s.  Debian GNU/Linux, with Linux 3.2.9-x86  Debian GNU/Linux, with Linux 3.2.9-x86 (recovery mode) [ m Debian GNU/Linux, with Linux 3.2.9-x86 (recovery mode)  Debian GNU/Linux, with Linux 3.0.23-x86  Debian GNU/Linux, with Linux 3.0.23-x86  Debian GNU/Linux, with Linux 3.0.23-x86 (recovery mode)  Debian GNU/Linux, with Linux 3.0.23-x86 (recovery mode)  Debian GNU/Linux, with Linux 2.6.32.49-x86  Debian GNU/Linux, with Linux 2.6.32.49-x86  Debian GNU/Linux, with Linux 2.6.32.49-x86 (recovery mode)  De bian GNU/Linux, with Linux 2.6.32.49-x86 (recovery mode)  Debian GNU/Linux, with Linux 2.6.32-5-686-bigmem  Debian GNU/Linux, with Linux 2.6.32-5-686-bigmem  Debian GNU/Linux, with Linux 2.6.32-5-686-bigmem (recovery mode)  Debian GNU/Linux, with Linux 2.6.32-5-686-bigmem (recovery mode)  Xen 4 Linux 3.2.9 x86  Xen 4 Linux 3.2.9 x86  Xen 4 Linux 3.2.9 x86  Xen 4 Linux 3.2.9 x86  Xen 4 Linux 3.2.9 x86  Xen 4 Linux 3.2.9 x86  Xen 4 Linux 3.2.9 x86  Xen 4 Linux 3.2.9 x86  Xen 4 Linux 3.2.9 x86  Xen 4 Linux 3.2.9 x86  Xen 4 Linux 3.2.9 x86  Xen 4 Linux 3.2.9 x86  Xen 4 Linux 3.2.9 x86  Xen 4 Linux 3.2.9 x86  Xen 4 Linux 3.2.9 x86  Xen 4 Linux 3.2.9 x86  Xen 4 Linux 3.2.9 x86  Xen 4 Linux 3.2.9 x86  Xen 4 Linux 3.2.9 x86  Xen 4 Linux 3.2.9 x86  Xen 4 Linux 3.2.9 x86  [?25hGNU GRUB version 1.98+20100804-14+squeeze1 > > +--------------------------------------------------------------------------+||||||||||||||||||||||+--------------------------------------------------------------------------+ > Minimum Emacs-like screen editing is supported. TAB lists > completions. Press Ctrl-x to boot, Ctrl-c for a > command-line or ESC to discard edits and return to the > GRUB menu.insmod part_msdos insmod ext2 set root='(/dev/sda,msdos1)' search --no-floppy --fs-uuid --set c2941c7c-fe82-4b89-9baa-7a13f09ec335\ multiboot /boot/xen-4.1.2.gz placeholder dom0_mem=1024M com1=115200,8n1\ console=com1,vga loglvl=all guest_loglvl=all module /boot/vmlinuz-3.2.9-x86 placeholder root=/dev/sda1 ro console=t\ty0 console=hvc0 earlyprintk=xen module /boot/initrd.img-3.2.9-x86    [?25h[?25lGNU GRUB version 1.98+20100804-14+squeeze1 > > +--------------------------------------------------------------------------+||||||||||||||||||||||+--------------------------------------------------------------------------+ > Use the ^ and v keys to select which entry is highlighted. > Press enter to boot the selected OS, 'e' to edit the commands > before booting or 'c' for a command-line. >  Debian GNU/Linux, with Linux 3.2.9-x86  Debian GNU/Linux, with Linux 3.2.9-x86 (recovery mode)  Debian GNU/Linux, with Linux 3.0.23-x86  Debian GNU/Linux, with Linux 3.0.23-x86 (recovery mode)  Debian GNU/Linux, with Linux 2.6.32.49-x86  Debian GNU/Linux, with Linux 2.6.32.49-x86 (recovery mode)  Debian GNU/Linux, with Linux 2.6.32-5-686-bigmem  Debian GNU/Linux, with Linux 2.6.32-5-686-bigmem (recovery mode)  X en 4 Linux 3.2.9 x86        [?25hGNU GRUB version 1.98+20100804-14+squeeze1 > > +--------------------------------------------------------------------------+||||||||||||||||||||||+--------------------------------------------------------------------------+ > Minimum Emacs-like screen editing is supported. TAB lists > completions. Press Ctrl-x to boot, Ctrl-c for a > command-line or ESC to discard edits and return to the > GRUB menu.insmod part_msdos insmod ext2 set root='(/dev/sda,msdos1)' search --no-floppy --fs-uuid --set c2941c7c-fe82-4b89-9baa-7a13f09ec335\ multiboot /boot/xen-4.1.2.gz placeholder dom0_mem=1024M com1=115200,8n1\ console=com1,vga loglvl=all guest_loglvl=all module /boot/vmlinuz-3.2.9-x86 placeholder root=/dev/sda1 ro console=t\ty0 console=hvc0 earlyprintk=xen module /boot/initrd.img-3.2.9-x86    [?25h[?25lGNU GRUB version 1.98+20100804-14+squeeze1 > > +--------------------------------------------------------------------------+||||||||||||||||||||||+--------------------------------------------------------------------------+ > Use the ^ and v keys to select which entry is highlighted. > Press enter to boot the selected OS, 'e' to edit the commands > before booting or 'c' for a command-line. >  Debian GNU/Linux, with Linux 3.2.9-x86  Debian GNU/Linux, with Linux 3.2.9-x86 (recovery mode)  Debian GNU/Linux, with Linux 3.0.23-x86  Debian GNU/Linux, with Linux 3.0.23-x86 (recovery mode)  Debian GNU/Linux, with Linux 2.6.32.49-x86  Debian GNU/Linux, with Linux 2.6.32.49-x86 (recovery mode)  Debian GNU/Linux, with Linux 2.6.32-5-686-bigmem  Debian GNU/Linux, with Linux 2.6.32-5-686-bigmem (recovery mode)  X en 4 Linux 3.2.9 x86        [?25h __ __ _ _ _ ____ > \ \/ /___ _ __ | || | / | |___ \ > \ // _ \ '_ \ | || |_ | | __) | > / \ __/ | | | |__ _|| |_ / __/ > /_/\_\___|_| |_| |_|(_)_(_)_____| > > (XEN) Xen version 4.1.2 (root@uk.xensource.com) (gcc version 4.4.5 (Debian 4.4.5-8) ) Tue Mar 13 17:07:49 UTC 2012 > (XEN) Latest ChangeSet: unavailable > (XEN) Bootloader: GRUB 1.98+20100804-14+squeeze1 > (XEN) Command line: placeholder dom0_mem=1024M com1=115200,8n1 console=com1,vga loglvl=all guest_loglvl=all > (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 1 MBR signatures > (XEN) Found 1 EDD information structures > (XEN) Xen-e820 RAM map: > (XEN) 0000000000000000 - 000000000009e000 (usable) > (XEN) 0000000000100000 - 00000000bf699000 (usable) > (XEN) 00000000bf699000 - 00000000bf6af000 (reserved) > (XEN) 00000000bf6af000 - 00000000bf6ce000 (ACPI data) > (XEN) 00000000bf6ce000 - 00000000c0000000 (reserved) > (XEN) 00000000e0000000 - 00000000f0000000 (reserved) > (XEN) 00000000fe000000 - 0000000100000000 (reserved) > (XEN) 0000000100000000 - 0000000240000000 (usable) > (XEN) System RAM: 8182MB (8378588kB) > (XEN) ACPI: RSDP 000F0AA0, 0024 (r2 DELL ) > (XEN) ACPI: XSDT 000F0BA0, 008C (r1 DELL PE_SC3 1 DELL 1) > (XEN) ACPI: FACP BF6C3BB4, 00F4 (r3 DELL PE_SC3 1 DELL 1) > (XEN) ACPI: DSDT BF6AF000, 3E43 (r1 DELL PE_SC3 1 INTL 20050624) > (XEN) ACPI: FACS BF6C6000, 0040 > (XEN) ACPI: APIC BF6C3478, 0152 (r1 DELL PE_SC3 1 DELL 1) > (XEN) ACPI: SPCR BF6C35CC, 0050 (r1 DELL PE_SC3 1 DELL 1) > (XEN) ACPI: HPET BF6C3620, 0038 (r1 DELL PE_SC3 1 DELL 1) > (XEN) ACPI: DMAR BF6C365C, 00A8 (r1 DELL PE_SC3 1 DELL 1) > (XEN) ACPI: MCFG BF6C3850, 003C (r1 DELL PE_SC3 1 DELL 1) > (XEN) ACPI: WD__ BF6C3890, 0134 (r1 DELL PE_SC3 1 DELL 1) > (XEN) ACPI: SLIC BF6C39C8, 0024 (r1 DELL PE_SC3 1 DELL 1) > (XEN) ACPI: ERST BF6B2FC4, 0270 (r1 DELL PE_SC3 1 DELL 1) > (XEN) ACPI: HEST BF6B3234, 03A8 (r1 DELL PE_SC3 1 DELL 1) > (XEN) ACPI: BERT BF6B2E44, 0030 (r1 DELL PE_SC3 1 DELL 1) > (XEN) ACPI: EINJ BF6B2E74, 0150 (r1 DELL PE_SC3 1 DELL 1) > (XEN) ACPI: TCPA BF6C3B4C, 0064 (r2 DELL PE_SC3 1 DELL 1) > (XEN) No NUMA configuration found > (XEN) Faking a node at 0000000000000000-0000000240000000 > (XEN) Xen heap: 9MB (9752kB) > (XEN) Domain heap initialised > (XEN) found SMP MP-table at 000fe710 > (XEN) DMI 2.6 present. > (XEN) Using APIC driver default > (XEN) ACPI: PM-Timer IO Port: 0x808 > (XEN) ACPI: ACPI SLEEP INFO: pm1x_cnt[804,0], pm1x_evt[800,0] > (XEN) ACPI: wakeup_vec[bf6c600c], vec_size[20] > (XEN) ACPI: Local APIC address 0xfee00000 > (XEN) ACPI: LAPIC (acpi_id[0x01] lapic_id[0x00] enabled) > (XEN) Processor #0 7:14 APIC version 21 > (XEN) ACPI: LAPIC (acpi_id[0x02] lapic_id[0x02] enabled) > (XEN) Processor #2 7:14 APIC version 21 > (XEN) ACPI: LAPIC (acpi_id[0x03] lapic_id[0x04] enabled) > (XEN) Processor #4 7:14 APIC version 21 > (XEN) ACPI: LAPIC (acpi_id[0x04] lapic_id[0x06] enabled) > (XEN) Processor #6 7:14 APIC version 21 > (XEN) ACPI: LAPIC (acpi_id[0x05] lapic_id[0x01] enabled) > (XEN) Processor #1 7:14 APIC version 21 > (XEN) ACPI: LAPIC (acpi_id[0x06] lapic_id[0x03] enabled) > (XEN) Processor #3 7:14 APIC version 21 > (XEN) ACPI: LAPIC (acpi_id[0x07] lapic_id[0x05] enabled) > (XEN) Processor #5 7:14 APIC version 21 > (XEN) ACPI: LAPIC (acpi_id[0x08] lapic_id[0x07] enabled) > (XEN) Processor #7 7:14 APIC version 21 > (XEN) ACPI: LAPIC (acpi_id[0x09] lapic_id[0x28] disabled) > (XEN) ACPI: LAPIC (acpi_id[0x0a] lapic_id[0x29] disabled) > (XEN) ACPI: LAPIC (acpi_id[0x0b] lapic_id[0x2a] disabled) > (XEN) ACPI: LAPIC (acpi_id[0x0c] lapic_id[0x2b] disabled) > (XEN) ACPI: LAPIC (acpi_id[0x0d] lapic_id[0x2c] disabled) > (XEN) ACPI: LAPIC (acpi_id[0x0e] lapic_id[0x2d] disabled) > (XEN) ACPI: LAPIC (acpi_id[0x0f] lapic_id[0x2e] disabled) > (XEN) ACPI: LAPIC (acpi_id[0x10] lapic_id[0x2f] disabled) > (XEN) ACPI: LAPIC (acpi_id[0x11] lapic_id[0x30] disabled) > (XEN) ACPI: LAPIC (acpi_id[0x12] lapic_id[0x31] disabled) > (XEN) ACPI: LAPIC (acpi_id[0x13] lapic_id[0x32] disabled) > (XEN) ACPI: LAPIC (acpi_id[0x14] lapic_id[0x33] disabled) > (XEN) ACPI: LAPIC (acpi_id[0x15] lapic_id[0x34] disabled) > (XEN) ACPI: LAPIC (acpi_id[0x16] lapic_id[0x35] disabled) > (XEN) ACPI: LAPIC (acpi_id[0x17] lapic_id[0x36] disabled) > (XEN) ACPI: LAPIC (acpi_id[0x18] lapic_id[0x37] disabled) > (XEN) ACPI: LAPIC (acpi_id[0x19] lapic_id[0x38] disabled) > (XEN) ACPI: LAPIC (acpi_id[0x1a] lapic_id[0x39] disabled) > (XEN) ACPI: LAPIC (acpi_id[0x1b] lapic_id[0x3a] disabled) > (XEN) ACPI: LAPIC (acpi_id[0x1c] lapic_id[0x3b] disabled) > (XEN) ACPI: LAPIC (acpi_id[0x1d] lapic_id[0x3c] disabled) > (XEN) ACPI: LAPIC (acpi_id[0x1e] lapic_id[0x3d] disabled) > (XEN) ACPI: LAPIC (acpi_id[0x1f] lapic_id[0x3e] disabled) > (XEN) ACPI: LAPIC (acpi_id[0x20] lapic_id[0x3f] disabled) > (XEN) ACPI: LAPIC_NMI (acpi_id[0xff] high edge lint[0x1]) > (XEN) ACPI: IOAPIC (id[0x00] address[0xfec00000] gsi_base[0]) > (XEN) IOAPIC[0]: apic_id 0, version 32, address 0xfec00000, GSI 0-23 > (XEN) ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl) > (XEN) ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) > (XEN) ACPI: IRQ0 used by override. > (XEN) ACPI: IRQ2 used by override. > (XEN) ACPI: IRQ9 used by override. > (XEN) Enabling APIC mode: Flat. Using 1 I/O APICs > (XEN) ACPI: HPET id: 0x8086a701 base: 0xfed00000 > (XEN) ERST table is invalid > (XEN) Using ACPI (MADT) for SMP configuration information > (XEN) IRQ limits: 24 GSI, 1528 MSI/MSI-X > (XEN) Using scheduler: SMP Credit Scheduler (credit) > (XEN) Detected 2660.056 MHz processor. > (XEN) mce_intel.c:1162: MCA Capability: BCAST 1 SER 0 CMCI 1 firstbank 0 extended MCE MSR 0 > (XEN) Intel machine check reporting enabled > (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) Intel VT-d Shared EPT tables not enabled. > (XEN) I/O virtualisation enabled > (XEN) - Dom0 mode: Relaxed > (XEN) ENABLING IO-APIC IRQs > (XEN) -> Using new ACK method > (XEN) ..TIMER: vector=0xF0 apic1=0 pin1=2 apic2=-1 pin2=-1 > (XEN) Platform timer is 14.318MHz HPET > XEN) Allocated console ring of 64 KiB. > (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) EPT supports 2MB super page. > (XEN) HVM: ASIDs enabled. > (XEN) HVM: VMX enabled > (XEN) HVM: Hardware Assisted Paging detected. > (XEN) Brought up 8 CPUs > (XEN) HPET: 8 timers in total, 8 timers will be used for broadcast > (XEN) ACPI sleep modes: S3 > (XEN) mcheck_poll: Machine check polling timer started. > (XEN) *** LOADING DOMAIN 0 *** > (XEN) elf_parse_binary: phdr: paddr=0x1000000 memsz=0x639000 > (XEN) elf_parse_binary: phdr: paddr=0x1639000 memsz=0x3b8000 > (XEN) elf_parse_binary: memory: 0x1000000 -> 0x19f1000 > (XEN) elf_xen_parse_note: GUEST_OS = "linux" > (XEN) elf_xen_parse_note: GUEST_VERSION = "2.6" > (XEN) elf_xen_parse_note: XEN_VERSION = "xen-3.0" > (XEN) elf_xen_parse_note: VIRT_BASE = 0xc0000000 > (XEN) elf_xen_parse_note: ENTRY = 0xc1678000 > (XEN) elf_xen_parse_note: HYPERCALL_PAGE = 0xc1002000 > (XEN) elf_xen_parse_note: FEATURES = "!writable_page_tables|pae_pgdir_above_4gb" > (XEN) elf_xen_parse_note: PAE_MODE = "yes" > (XEN) elf_xen_parse_note: LOADER = "generic" > (XEN) elf_xen_parse_note: unknown xen elf note (0xd) > (XEN) elf_xen_parse_note: SUSPEND_CANCEL = 0x1 > (XEN) elf_xen_parse_note: HV_START_LOW = 0xf5800000 > (XEN) elf_xen_parse_note: PADDR_OFFSET = 0x0 > (XEN) elf_xen_addr_calc_check: addresses: > (XEN) virt_base = 0xc0000000 > (XEN) elf_paddr_offset = 0x0 > (XEN) virt_offset = 0xc0000000 > (XEN) virt_kstart = 0xc1000000 > (XEN) virt_kend = 0xc19f1000 > (XEN) virt_entry = 0xc1678000 > (XEN) p2m_base = 0xffffffffffffffff > (XEN) Xen kernel: 32-bit, PAE, lsb > (XEN) Dom0 kernel: 32-bit, PAE, lsb, paddr 0x1000000 -> 0x19f1000 > (XEN) PHYSICAL MEMORY ARRANGEMENT: > (XEN) Dom0 alloc.: 0000000234000000->0000000236000000 (236045 pages to be allocated) > (XEN) Init. ramdisk: 000000023ba0d000->000000023ffffe00 > (XEN) VIRTUAL MEMORY ARRANGEMENT: > (XEN) Loaded kernel: c1000000->c19f1000 > (XEN) Init. ramdisk: c19f1000->c5fe3e00 > (XEN) Phys-Mach map: c5fe4000->c60e4000 > (XEN) Start info: c60e4000->c60e447c > (XEN) Page tables: c60e5000->c611c000 > (XEN) Boot stack: c611c000->c611d000 > (XEN) TOTAL: c0000000->c6400000 > (XEN) ENTRY ADDRESS: c1678000 > (XEN) Dom0 has maximum 8 VCPUs > (XEN) elf_load_binary: phdr 0 at 0xc1000000 -> 0xc1639000 > (XEN) elf_load_binary: phdr 1 at 0xc1639000 -> 0xc16ea000 > (XEN) Scrubbing Free RAM: ......................................................................done. > (XEN) Xen trace buffers: disabled > (XEN) Std. Loglevel: All > (XEN) Guest Loglevel: All > (XEN) Xen is relinquishing VGA console. > (XEN) *** Serial input -> DOM0 (type 'CTRL-a' three times to switch input to Xen) > (XEN) Freed 172kB init memory. > mapping kernel into physical memory > Xen: setup ISA identity maps > about to get started... > [ 0.000000] Reserving virtual address space above 0xf5800000 > [ 0.000000] Initializing cgroup subsys cpuset > [ 0.000000] Initializing cgroup subsys cpu > [ 0.000000] Linux version 3.2.9 (root@dt29) (gcc version 4.4.5 (Debian 4.4.5-8) ) #9 SMP Mon Mar 12 03:35:38 UTC 2012 > [ 0.000000] Freeing 9e-100 pfn range: 98 pages freed > [ 0.000000] Released 98 pages of unused memory > [ 0.000000] Set 264649 page(s) to 1-1 mapping > [ 0.000000] BIOS-provided physical RAM map: > [ 0.000000] Xen: 0000000000000000 - 000000000009e000 (usable) > [ 0.000000] Xen: 00000000000a0000 - 0000000000100000 (reserved) > [ 0.000000] Xen: 0000000000100000 - 00000000bf699000 (usable) > [ 0.000000] Xen: 00000000bf699000 - 00000000bf6af000 (reserved) > [ 0.000000] Xen: 00000000bf6af000 - 00000000bf6ce000 (ACPI data) > [ 0.000000] Xen: 00000000bf6ce000 - 00000000c0000000 (reserved) > [ 0.000000] Xen: 00000000e0000000 - 00000000f0000000 (reserved) > [ 0.000000] Xen: 00000000fe000000 - 0000000100000000 (reserved) > [ 0.000000] Xen: 0000000100000000 - 0000000240000000 (usable) > [ 0.000000] bootconsole [xenboot0] enabled > [ 0.000000] NX (Execute Disable) protection: active > [ 0.000000] DMI 2.6 present. > [ 0.000000] last_pfn = 0x240000 max_arch_pfn = 0x1000000 > [ 0.000000] found SMP MP-table at [c00fe710] fe710 > [ 0.000000] init_memory_mapping: 0000000000000000-000000002cdfe000 > (XEN) mm.c:907:d0 Error getting mfn 3409e (pfn 55555555) from L1 entry 000000003409e023 for l1e_owner=0, pg_owner=0 > (XEN) mm.c:4962:d0 ptwr_emulate: fixing up invalid PAE PTE 000000003409e023 > (XEN) mm.c:907:d0 Error getting mfn 3409f (pfn 55555555) from L1 entry 000000003409f023 for l1e_owner=0, pg_owner=0 > (XEN) mm.c:4962:d0 ptwr_emulate: fixing up invalid PAE PTE 000000003409f023 > [ 0.000000] RAMDISK: 019f1000 - 05fe4000 > [ 0.000000] ACPI: RSDP 000f0aa0 00024 (v02 DELL ) > [ 0.000000] ACPI: XSDT 000f0ba0 0008C (v01 DELL PE_SC3 00000001 DELL 00000001) > [ 0.000000] ACPI: FACP bf6c3bb4 000F4 (v03 DELL PE_SC3 00000001 DELL 00000001) > [ 0.000000] ACPI: DSDT bf6af000 03E43 (v01 DELL PE_SC3 00000001 INTL 20050624) > [ 0.000000] ACPI: FACS bf6c6000 00040 > [ 0.000000] ACPI: APIC bf6c3478 00152 (v01 DELL PE_SC3 00000001 DELL 00000001) > [ 0.000000] ACPI: SPCR bf6c35cc 00050 (v01 DELL PE_SC3 00000001 DELL 00000001) > [ 0.000000] ACPI: HPET bf6c3620 00038 (v01 DELL PE_SC3 00000001 DELL 00000001) > [ 0.000000] ACPI: XMAR bf6c365c 000A8 (v01 DELL PE_SC3 00000001 DELL 00000001) > [ 0.000000] ACPI: MCFG bf6c3850 0003C (v01 DELL PE_SC3 00000001 DELL 00000001) > [ 0.000000] ACPI: WD__ bf6c3890 00134 (v01 DELL PE_SC3 00000001 DELL 00000001) > [ 0.000000] ACPI: SLIC bf6c39c8 00024 (v01 DELL PE_SC3 00000001 DELL 00000001) > [ 0.000000] ACPI: ERST bf6b2fc4 00270 (v01 DELL PE_SC3 00000001 DELL 00000001) > [ 0.000000] ACPI: HEST bf6b3234 003A8 (v01 DELL PE_SC3 00000001 DELL 00000001) > [ 0.000000] ACPI: BERT bf6b2e44 00030 (v01 DELL PE_SC3 00000001 DELL 00000001) > [ 0.000000] ACPI: EINJ bf6b2e74 00150 (v01 DELL PE_SC3 00000001 DELL 00000001) > [ 0.000000] ACPI: TCPA bf6c3b4c 00064 (v02 DELL PE_SC3 00000001 DELL 00000001) > [ 0.000000] No NUMA configuration found > [ 0.000000] Faking a node at 0000000000000000-0000000240000000 > (XEN) mm.c:943:d0 Attempt to map superpage without allowsuperpage flag in hypervisor > [ 0.000000] ------------[ cut here ]------------ > [ 0.000000] WARNING: at arch/x86/xen/multicalls.c:129 xen_mc_issue+0x34/0x62() > [ 0.000000] Hardware name: PowerEdge R310 > [ 0.000000] Modules linked in: > [ 0.000000] Pid: 0, comm: swapper Not tainted 3.2.9 #9 > [ 0.000000] Call Trace: > [ 0.000000] [] ? warn_slowpath_common+0x6a/0x7b > [ 0.000000] [] ? xen_mc_issue+0x34/0x62 > [ 0.000000] [] ? warn_slowpath_null+0xd/0x10 > [ 0.000000] [] ? xen_mc_issue+0x34/0x62 > [ 0.000000] [] ? xen_set_pmd_hyper+0x3c/0x42 > [ 0.000000] [] ? set_pmd_pfn+0xde/0xf9 > [ 0.000000] [] ? init_alloc_remap+0x1b3/0x216 > [ 0.000000] [] ? setup_node_data+0x4c/0x22f > [ 0.000000] [] ? T.744+0x290/0x2c2 > [ 0.000000] [] ? T.743+0x77/0x1a1 > [ 0.000000] [] ? default_get_apic_id+0x14/0x33 > [ 0.000000] [] ? initmem_init+0x5/0xb7 > [ 0.000000] [] ? setup_arch+0x5bf/0x694 > [ 0.000000] [] ? __spin_time_accum+0x26/0x36 > [ 0.000000] [] ? start_kernel+0x81/0x34d > [ 0.000000] [] ? xen_start_kernel+0x554/0x55b > [ 0.000000] ---[ end trace 4eaa2a86a8e2da22 ]--- So this is first time I am seeing this. It looks like something in 3.2 -> 3.2.9 is causing this. Can you do one more check - and just try booting the 3.2 virgin and seeing how it works?