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Re: [Xen-devel] Re: FC15: 32-bit PV guest crash on restore on x64_86 host



On Wed, May 04, 2011 at 11:03:04PM +0200, Igor Mammedov wrote:
> On 05/04/2011 10:19 PM, Konrad Rzeszutek Wilk wrote:
> >On Wed, May 04, 2011 at 09:58:01PM +0200, Igor Mammedov wrote:
> >>On restore 32bit PV guest crashes on x64_86 host, while  x64_86 PV guest
> >>works as expected.
> >>
> >>Bisecting of upstream kernel shows following offending commit:
> >Can you try the patches in devel/p2m-e820-pci.v2
> >(git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen.git)
> >
> 
> devel/p2m-e820-pci.v2 branch isn't boots.
> 
> Could you point out any specific patches?


a1fcd6e xen:p2m: Create entries in the P2M_MFN trees's to track 1-1 mappings
39fc738 xen/setup: Ignore E820_UNUSABLE when setting 1-1 mappings.

But the more I look at this I don't think those patches will help here at all.

This looks like a completle new failure. Let me try it on my box tomorrow
and see how it works out.
> 
> >
> >>commit 448f2831934381e9d3c4d93e700ba7bbe14612dc
> >>Author: Jeremy Fitzhardinge<jeremy.fitzhardinge@xxxxxxxxxx>
> >>Date:   Wed Dec 15 13:19:33 2010 +0000
> >>
> >>     xen: add m2p override mechanism
> >>
> >>
> >>More details from https://bugzilla.redhat.com/show_bug.cgi?id=700752
> >>
> >>excerpt from hypervisor.log:
> >Can you attach the full bootup log of the DomU? I am curios of the
> >memory layout. And also the guest config.
> >
> 
> config:
> 
> #cat /etc/xen/fc15
> name = "fc15"
> uuid = "197408d9-8aeb-b0b8-ee0a-8110e5d1b8e3"
> maxmem = 1024
> memory = 1024
> vcpus = 1
> bootloader = "/usr/bin/pygrub"
> on_poweroff = "destroy"
> on_reboot = "restart"
> on_crash = "restart"
> vfb = [ "type=vnc,vncunused=1,keymap=en-us" ]
> disk = [ "phy:/dev/sdc,xvda,w" ]
> vif = [ "mac=00:16:36:44:90:4e,bridge=xenbr0,script=vif-bridge" ]
> 
> 
> 
> domU bootup log is attached.
> 
> >>(XEN) mm.c:630:d16 Non-privileged (16) attempt to map I/O space 2712536c5e
> >>(XEN) mm.c:3619:d16 ptwr_emulate: fixing up invalid PAE PTE c082712536c5e063
> >>(XEN) /builddir/build/BUILD/kernel-2.6.18/xen/include/asm/mm.h:225:d16 Error
> >>pfn 36c5b: rd=ffff8300afdca080, od=ffff8300af1f0080, caf=80000002,
> >>taf=00000000e8000001
> >>(XEN) mm.c:654:d16 Error getting mfn 36c5b (pfn 3b325b) from L1 entry
> >>0000000036c5b063 for dom16
> >>(XEN) mm.c:3619:d16 ptwr_emulate: fixing up invalid PAE PTE 0000000036c5b063
> >>(XEN) Pagetable walk from 00000000eb40ff98:
> >>(XEN)  L4[0x000] = 0000000066ad4027 0000000000027494
> >>(XEN)  L3[0x003] = 0000000066eae027 0000000000027492
> >>(XEN)  L2[0x15a] = 0000000237400067 0000000000001600
> >>(XEN)  L1[0x00f] = 80000002373f8061 000000000002b40f
> >>(XEN) domain_crash_sync called from entry.S
> >>(XEN) Domain 16 (vcpu#0) crashed on cpu#1:
> >>(XEN) ----[ Xen-3.1.2-257.el5  x86_64  debug=n  Not tainted ]----
> >>(XEN) CPU:    1
> >>(XEN) RIP:    0061:[<00000000c04047ee>]
> >>(XEN) RFLAGS: 0000000000010213   CONTEXT: guest
> >>(XEN) rax: 00000000f4d78000   rbx: 00000000eb4aea40   rcx: 000000000000007b
> >>(XEN) rdx: 00000000eb4aea40   rsi: 00000000eb410024   rdi: 00000000c0827117
> >>(XEN) rbp: 00000000eb40ffa0   rsp: 00000000eb40ffa0   r8:  0000000000000000
> >>(XEN) r9:  0000000000000000   r10: 0000000000000000   r11: 0000000000000000
> >>(XEN) r12: 0000000000000000   r13: 0000000000000000   r14: 0000000000000000
> >>(XEN) r15: 0000000000000000   cr0: 000000008005003b   cr4: 00000000000006f0
> >>(XEN) cr3: 0000000250002000   cr2: 00000000f4d78008
> >>(XEN) ds: 007b   es: 007b   fs: 00d8   gs: 00e0   ss: 0069   cs: 0061
> >>(XEN) Guest stack trace from esp=eb40ffa0:
> >>(XEN)   eb41001c c0827152 36c5d063 80000002 36c5c063 80000002 36c5b062 
> >>00000000
> >>(XEN)   00000008 eb4aea40 00000000 80000002 36c58063 80000002 36c57063 
> >>80000002
> >>(XEN)   36c56063 80000002 36c55063 80000002 36c54063 80000002 36c53063 
> >>80000002
> >>(XEN) mm.c:630:d0 Non-privileged (16) attempt to map I/O space 00000000
> >>
> >>gdb guest kernel stack trace:
> >>#0  0xc04047ee in xen_read_cr2 () at arch/x86/xen/mmu.c:1244
> >>#1  0xc0827152 in read_cr2 (regs=0xeb410024, error_code=0)
> >>     at
> >>/usr/src/debug/kernel-2.6.38.fc15/linux-2.6.38.i686/arch/x86/include/asm/paravirt.h:64
> >>#2  do_page_fault (regs=0xeb410024, error_code=0) at arch/x86/mm/fault.c:974
> >>#3<signal handler called>
> >>...
> >>
> >>
> >>
> >_______________________________________________
> >Xen-devel mailing list
> >Xen-devel@xxxxxxxxxxxxxxxxxxx
> >http://lists.xensource.com/xen-devel
> 

> [    0.000000] Reserving virtual address space above 0xf5800000
> [    0.000000] Initializing cgroup subsys cpuset
> [    0.000000] Initializing cgroup subsys cpu
> [    0.000000] Linux version 2.6.38.2-9.fc15.i686.PAEdebug 
> (mockbuild@xxxxxxxxxxxxxxxxxxxxxxxxxxxxx) (gcc version 4.6.0 20110329 (Red 
> Hat 4.6.0-1) (GCC) ) #1 SMP Wed Mar 30 16:40:57 UTC 2011
> [    0.000000] ACPI in unprivileged domain disabled
> [    0.000000] released 0 pages of unused memory
> [    0.000000] BIOS-provided physical RAM map:
> [    0.000000]  Xen: 0000000000000000 - 00000000000a0000 (usable)
> [    0.000000]  Xen: 00000000000a0000 - 0000000000100000 (reserved)
> [    0.000000]  Xen: 0000000000100000 - 0000000040800000 (usable)
> [    0.000000] NX (Execute Disable) protection: active
> [    0.000000] DMI not present or invalid.
> [    0.000000] e820 update range: 0000000000000000 - 0000000000010000 
> (usable) ==> (reserved)
> [    0.000000] e820 remove range: 00000000000a0000 - 0000000000100000 (usable)
> [    0.000000] last_pfn = 0x40800 max_arch_pfn = 0x1000000
> [    0.000000] initial memory mapped : 0 - 02f55000
> [    0.000000] init_memory_mapping: 0000000000000000-000000002c9fe000
> [    0.000000]  0000000000 - 002c9fe000 page 4k
> [    0.000000] kernel direct mapping tables up to 2c9fe000 @ 14c4000-1631000
> [    0.000000] RAMDISK: 01631000 - 02f55000
> [    0.000000] 318MB HIGHMEM available.
> [    0.000000] 713MB LOWMEM available.
> [    0.000000]   mapped low ram: 0 - 2c9fe000
> [    0.000000]   low ram: 0 - 2c9fe000
> [    0.000000] Zone PFN ranges:
> [    0.000000]   DMA      0x00000010 -> 0x00001000
> [    0.000000]   Normal   0x00001000 -> 0x0002c9fe
> [    0.000000]   HighMem  0x0002c9fe -> 0x00040800
> [    0.000000] Movable zone start PFN for each node
> [    0.000000] early_node_map[2] active PFN ranges
> [    0.000000]     0: 0x00000010 -> 0x000000a0
> [    0.000000]     0: 0x00000100 -> 0x00040800
> [    0.000000] On node 0 totalpages: 264080
> [    0.000000] free_area_init_node: node 0, pgdat c0b00400, node_mem_map 
> ec1ed200
> [    0.000000]   DMA zone: 32 pages used for memmap
> [    0.000000]   DMA zone: 0 pages reserved
> [    0.000000]   DMA zone: 3952 pages, LIFO batch:0
> [    0.000000]   Normal zone: 1396 pages used for memmap
> [    0.000000]   Normal zone: 177290 pages, LIFO batch:31
> [    0.000000]   HighMem zone: 637 pages used for memmap
> [    0.000000]   HighMem zone: 80773 pages, LIFO batch:15
> [    0.000000] Using APIC driver default
> [    0.000000] SFI: Simple Firmware Interface v0.81 http://simplefirmware.org
> [    0.000000] SMP: Allowing 1 CPUs, 0 hotplug CPUs
> [    0.000000] Local APIC disabled by BIOS -- you can enable it with "lapic"
> [    0.000000] APIC: disable apic facility
> [    0.000000] APIC: switched to apic NOOP
> [    0.000000] nr_irqs_gsi: 16
> [    0.000000] PM: Registered nosave memory: 00000000000a0000 - 
> 0000000000100000
> [    0.000000] Allocating PCI resources starting at 40800000 (gap: 
> 40800000:bf800000)
> [    0.000000] Booting paravirtualized kernel on Xen
> [    0.000000] Xen version: 3.1.2-257.el5 (preserve-AD)
> [    0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:1 
> nr_node_ids:1
> [    0.000000] PERCPU: Embedded 333 pages/cpu @ec08b000 s1342656 r0 d21312 
> u1363968
> [    0.000000] pcpu-alloc: s1342656 r0 d21312 u1363968 alloc=333*4096
> [    0.000000] pcpu-alloc: [0] 0 
> [    0.000000] register_vcpu_info failed: err=-38
> [    0.000000] Built 1 zonelists in Zone order, mobility grouping on.  Total 
> pages: 262015
> [    0.000000] Kernel command line:  ro 
> root=UUID=78d7ed07-6f6c-407f-bf2a-ff9a218c63c8 rd_NO_LUKS rd_NO_LVM rd_NO_MD 
> rd_NO_DM LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 KEYTABLE=us console=tty0 
> console=hvc0 loglevel=9 selinux=0
> [    0.000000] PID hash table entries: 4096 (order: 2, 16384 bytes)
> [    0.000000] Dentry cache hash table entries: 131072 (order: 7, 524288 
> bytes)
> [    0.000000] Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
> [    0.000000] Initializing CPU#0
> [    0.000000] allocated 5283520 bytes of page_cgroup
> [    0.000000] please try 'cgroup_disable=memory' option if you don't want 
> memory cgroups
> [    0.000000] Initializing HighMem for node 0 (0002c9fe:00040800)
> [    0.000000] Memory: 988084k/1056768k available (4266k kernel code, 60044k 
> reserved, 2961k data, 1892k init, 317448k highmem)
> [    0.000000] virtual kernel memory layout:
> [    0.000000]     fixmap  : 0xf4d75000 - 0xf57ff000   (10792 kB)
> [    0.000000]     pkmap   : 0xf4a00000 - 0xf4c00000   (2048 kB)
> [    0.000000]     vmalloc : 0xed1fe000 - 0xf49fe000   ( 120 MB)
> [    0.000000]     lowmem  : 0xc0000000 - 0xec9fe000   ( 713 MB)
> [    0.000000]       .init : 0xc0b0f000 - 0xc0ce8000   (1892 kB)
> [    0.000000]       .data : 0xc082a8e2 - 0xc0b0ee80   (2961 kB)
> [    0.000000]       .text : 0xc0400000 - 0xc082a8e2   (4266 kB)
> [    0.000000] SLUB: Genslabs=15, HWalign=64, Order=0-3, MinObjects=0, 
> CPUs=1, Nodes=1
> [    0.000000] Hierarchical RCU implementation.
> [    0.000000]        RCU dyntick-idle grace-period acceleration is enabled.
> [    0.000000]        RCU lockdep checking is enabled.
> [    0.000000]        RCU-based detection of stalled CPUs is disabled.
> [    0.000000] NR_IRQS:2304
> [    0.000000] CPU 0 irqstacks, hard=eb434000 soft=eb436000
> [    0.000000] Console: colour dummy device 80x25
> [    0.000000] console [tty0] enabled
> [    0.000000] console [hvc0] enabled
> [    0.000000] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., 
> Ingo Molnar
> [    0.000000] ... MAX_LOCKDEP_SUBCLASSES:  8
> [    0.000000] ... MAX_LOCK_DEPTH:          48
> [    0.000000] ... MAX_LOCKDEP_KEYS:        8191
> [    0.000000] ... CLASSHASH_SIZE:          4096
> [    0.000000] ... MAX_LOCKDEP_ENTRIES:     16384
> [    0.000000] ... MAX_LOCKDEP_CHAINS:      32768
> [    0.000000] ... CHAINHASH_SIZE:          16384
> [    0.000000]  memory used by lock dependency info: 3823 kB
> [    0.000000]  per task-struct memory footprint: 1920 bytes
> [    0.000000] ODEBUG: 10 of 10 active objects replaced
> [    0.000000] Xen: using vcpuop timer interface
> [    0.000000] installing Xen timer for CPU 0
> [    0.000000] Detected 2000.002 MHz processor.
> [    0.000999] Calibrating delay loop (skipped), value calculated using timer 
> frequency.. 4000.00 BogoMIPS (lpj=2000002)
> [    0.000999] pid_max: default: 32768 minimum: 301
> [    0.000999] Security Framework initialized
> [    0.000999] SELinux:  Disabled at boot.
> [    0.001443] Mount-cache hash table entries: 512
> [    0.005650] Initializing cgroup subsys ns
> [    0.005667] ns_cgroup deprecated: consider using the 'clone_children' flag 
> without the ns_cgroup.
> [    0.005703] Initializing cgroup subsys cpuacct
> [    0.005808] Initializing cgroup subsys memory
> [    0.006116] Initializing cgroup subsys devices
> [    0.006134] Initializing cgroup subsys freezer
> [    0.006149] Initializing cgroup subsys net_cls
> [    0.006169] Initializing cgroup subsys blkio
> [    0.006586] CPU: Physical Processor ID: 0
> [    0.006600] CPU: Processor Core ID: 1
> [    0.006943] SMP alternatives: switching to UP code
> [    0.065225] Freeing SMP alternatives: 12k freed
> [    0.065302] ftrace: allocating 23733 entries in 47 pages
> [    0.067085] Performance Events: 
> [    0.067111] no APIC, boot with the "lapic" boot parameter to force-enable 
> it.
> [    0.067141] no hardware sampling interrupt available.
> [    0.067199] Broken PMU hardware detected, using software events only.
> [    0.070533] NMI watchdog disabled (cpu0): hardware events not enabled
> [    0.070574] Brought up 1 CPUs
> [    0.070601] sizeof(vma)=92 bytes
> [    0.070635] sizeof(page)=32 bytes
> [    0.070650] sizeof(inode)=700 bytes
> [    0.070673] sizeof(dentry)=164 bytes
> [    0.070694] sizeof(ext3inode)=984 bytes
> [    0.070718] sizeof(ext4inode)=1176 bytes
> [    0.070746] sizeof(buffer_head)=56 bytes
> [    0.070768] sizeof(skbuff)=192 bytes
> [    0.070783] sizeof(task_struct)=5388 bytes
> [    0.073155] devtmpfs: initialized
> [    0.079524] atomic64 test passed for i586+ platform with CX8 and with SSE
> [    0.079923] Grant table initialized
> [    0.099474] Time: 165:165:165  Date: 165/165/65
> [    0.100111] NET: Registered protocol family 16
> [    0.101972] Extended Config Space enabled on 0 nodes
> [    0.104013] PCI: setting up Xen PCI frontend stub
> [    0.104032] PCI: pci_cache_line_size set to 64 bytes
> [    0.122236] bio: create slab <bio-0> at 0
> [    0.122999] ACPI: Interpreter disabled.
> [    0.127061] xen_balloon: Initialising balloon driver.
> [    0.127255] last_pfn = 0x40800 max_arch_pfn = 0x1000000
> [    0.130518] vgaarb: loaded
> [    0.131409] SCSI subsystem initialized
> [    0.131829] libata version 3.00 loaded.
> [    0.132427] usbcore: registered new interface driver usbfs
> [    0.132571] usbcore: registered new interface driver hub
> [    0.132960] usbcore: registered new device driver usb
> [    0.133751] PCI: System does not support PCI
> [    0.133769] PCI: System does not support PCI
> [    0.135217] NetLabel: Initializing
> [    0.135230] NetLabel:  domain hash size = 128
> [    0.135245] NetLabel:  protocols = UNLABELED CIPSOv4
> [    0.135505] NetLabel:  unlabeled traffic allowed by default
> [    0.137548] Switching to clocksource xen
> [    0.137986] Switched to NOHz mode on CPU #0
> [    0.334659] pnp: PnP ACPI: disabled
> [    0.369769] NET: Registered protocol family 2
> [    0.371378] IP route cache hash table entries: 32768 (order: 5, 131072 
> bytes)
> [    0.375926] TCP established hash table entries: 131072 (order: 8, 1048576 
> bytes)
> [    0.378193] TCP bind hash table entries: 65536 (order: 9, 2883584 bytes)
> [    0.393942] TCP: Hash tables configured (established 131072 bind 65536)
> [    0.394077] TCP reno registered
> [    0.394362] UDP hash table entries: 512 (order: 3, 49152 bytes)
> [    0.394766] UDP-Lite hash table entries: 512 (order: 3, 49152 bytes)
> [    0.396873] NET: Registered protocol family 1
> [    0.396979] PCI: CLS 0 bytes, default 64
> [    0.398239] Trying to unpack rootfs image as initramfs...
> [    1.179325] Freeing initrd memory: 25744k freed
> [    1.247362] DMA-API: preallocated 32768 debug entries
> [    1.247386] DMA-API: debugging enabled by kernel config
> [    1.247969] platform rtc_cmos: registered platform RTC device (no PNP 
> device found)
> [    1.249498] apm: BIOS not found.
> [    1.250948] audit: initializing netlink socket (disabled)
> [    1.251234] type=2000 audit(1304541860.680:1): initialized
> [    1.282800] highmem bounce pool size: 64 pages
> [    1.282871] HugeTLB registered 2 MB page size, pre-allocated 0 pages
> [    1.331160] VFS: Disk quotas dquot_6.5.2
> [    1.331838] Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
> [    1.338179] msgmni has been set to 1376
> [    1.339622] cryptomgr_test used greatest stack depth: 6660 bytes left
> [    1.340905] alg: No test for stdrng (krng)
> [    1.340953] NET: Registered protocol family 38
> [    1.341374] Block layer SCSI generic (bsg) driver version 0.4 loaded 
> (major 253)
> [    1.341611] io scheduler noop registered
> [    1.341623] io scheduler deadline registered
> [    1.342168] io scheduler cfq registered (default)
> [    1.342181] list_sort_test: start testing list_sort()
> [    1.345420] pci_hotplug: PCI Hot Plug PCI Core version: 0.5
> [    1.345846] pciehp: PCI Express Hot Plug Controller Driver version: 0.4
> [    1.345861] acpiphp: ACPI Hot Plug PCI Controller Driver version: 0.5
> [    1.363051] Console: switching to colour frame buffer device 100x37
> [    1.376973] isapnp: Scanning for PnP cards...
> [    1.735258] isapnp: No Plug & Play device found
> [    1.740765] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
> [    1.750230] Non-volatile memory driver v1.3
> [    1.750339] Linux agpgart interface v0.103
> [    1.780362] brd: module loaded
> [    1.795330] loop: module loaded
> [    1.801715] Fixed MDIO Bus: probed
> [    1.806441] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
> [    1.809967] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
> [    1.813734] uhci_hcd: USB Universal Host Controller Interface driver
> [    1.818480] i8042: PNP: No PS/2 controller found. Probing ports directly.
> [    1.823711] mousedev: PS/2 mouse device common for all mice
> [    1.832065] input: Xen Virtual Keyboard as /devices/virtual/input/input0
> [    1.838382] input: Xen Virtual Pointer as /devices/virtual/input/input1
> [    1.852788] rtc_cmos rtc_cmos: rtc core: registered rtc_cmos as rtc0
> [    1.859491] rtc_cmos: probe of rtc_cmos failed with error -38
> [    1.865992] device-mapper: uevent: version 1.0.3
> [    1.870819] device-mapper: ioctl: 4.19.1-ioctl (2011-01-07) initialised: 
> dm-devel@xxxxxxxxxx
> [    1.876389] cpuidle: using governor ladder
> [    1.879802] cpuidle: using governor menu
> [    1.886583] usbcore: registered new interface driver usbhid
> [    1.889865] usbhid: USB HID core driver
> [    1.893941] nf_conntrack version 0.5.0 (15841 buckets, 63364 max)
> [    1.905686] ip_tables: (C) 2000-2006 Netfilter Core Team
> [    1.909268] TCP cubic registered
> [    1.912569] Initializing XFRM netlink socket
> [    1.916055] NET: Registered protocol family 17
> [    1.919740] Registering the dns_resolver key type
> [    1.923619] Using IPI No-Shortcut mode
> [    1.928695] PM: Hibernation image not present or could not be loaded.
> [    1.932292] registered taskstats version 1
> [    1.935779] IMA: No TPM chip found, activating TPM-bypass!
> [    1.941384] XENBUS: Device with no driver: device/vbd/51712
> [    1.943205] XENBUS: Device with no driver: device/vif/0
> [    1.945028]   Magic number: 1:252:3141
> [    1.946890] drivers/rtc/hctosys.c: unable to open rtc device (rtc0)
> [    1.950491] Initalizing network drop monitor service
> [    1.957762] Freeing unused kernel memory: 1892k freed
> [    1.969752] Write protecting the kernel text: 4268k
> [    1.975385] Write protecting the kernel read-only data: 2096k
> [    1.978803] NX-protecting the kernel data: 5972k
> [    2.016529] mknod used greatest stack depth: 6432 bytes left
> [    2.084306] systemd-timesta used greatest stack depth: 6324 bytes left
> [    2.123089] ln used greatest stack depth: 6044 bytes left
> mkdir: cannot create directory `/run': File exists
> [    2.444214] dracut: dracut-009-6.fc15
> [    2.583476] udevd used greatest stack depth: 5944 bytes left
> [    2.588327] udev[83]: starting version 167
> [    3.277460] setfont used greatest stack depth: 5896 bytes left
> [    3.379342] dracut: Starting plymouth daemon
> [    4.244107] blkfront: xvda: barriers disabled
> [    4.251978]  xvda: xvda1 xvda2
> [    4.990458] blkid used greatest stack depth: 5776 bytes left
> [    5.362426] EXT4-fs (xvda1): INFO: recovery required on readonly filesystem
> [    5.366498] EXT4-fs (xvda1): write access will be enabled during recovery
> [    7.284564] EXT4-fs (xvda1): recovery complete
> [    7.291642] EXT4-fs (xvda1): mounted filesystem with ordered data mode. 
> Opts: (null)
> [    7.299600] mount used greatest stack depth: 5248 bytes left
> [    7.565163] dracut: Checking filesystems
> [    7.569347] dracut: fsck -T -t noopts=_netdev -A -a
> [    7.626447] dracut: /dev/xvda1: clean, 37969/577088 files, 1214136/2304000 
> blocks
> [    7.631931] dracut: Remounting 
> /dev/disk/by-uuid/78d7ed07-6f6c-407f-bf2a-ff9a218c63c8 with -o ro,
> [    7.718359] EXT4-fs (xvda1): mounted filesystem with ordered data mode. 
> Opts: (null)
> [    7.747898] dracut: Mounted root filesystem /dev/xvda1
> [    8.212558] dracut: Switching root
> [    9.275093] systemd[1]: systemd 25 running in system mode. (+PAM +LIBWRAP 
> +AUDIT +SELINUX +SYSVINIT +LIBCRYPTSETUP; fedora)
> [    9.490985] NET: Registered protocol family 10
> [    9.517263] systemd[1]: Set hostname to <dhcp-26-219.brq.redhat.com>.
> [    9.681242] systemd-getty-generator[214]: Failed to create symlink from 
> /lib/systemd/system/serial-getty@.service to 
> /run/systemd/generator/getty.target.wants/serial-getty@xxxxxxxxxxxx: File 
> exists
> [    9.692568] systemd[1]: 
> /lib/systemd/system-generators/systemd-getty-generator exited with exit 
> status 1.
> [   10.865577] systemd-readahead-replay[216]: Bumped block_nr parameter of 
> /dev/xvda to 16384. This is a temporary hack and should be removed one day.
> [   11.859580] udev[230]: starting version 167
> [   11.916257] EXT4-fs (xvda1): re-mounted. Opts: (null)
> [   13.508715] Initialising Xen virtual ethernet driver.
> [   16.318230] Adding 1268732k swap on /dev/xvda2.  Priority:0 extents:1 
> across:1268732k SS
> [   19.435954] ip used greatest stack depth: 5076 bytes left
> [   20.245387] dhclient[487]: DHCPREQUEST on eth0 to 255.255.255.255 port 67
> [   20.262761] dhclient[487]: DHCPACK from 10.34.27.253
> [   21.136147] NET[547]: /sbin/dhclient-script : updated /etc/resolv.conf
> [   21.280225] dhclient[487]: bound to 10.34.26.219 -- renewal in 37863 
> seconds.
> Started Terminate Plymouth Boot Screen.
> Started Wait for Plymouth Boot Screen to Quit.
> Starting sshd: [  OK  ]
[   24.335759] sshd (679): /proc/679/oom_adj is deprecated, please use 
/proc/679/oom_score_adj instead.
> [   24.467840] sshd[679]: Server listening on 0.0.0.0 port 22.
> 
> [   24.499941] sshd[679]: Server listening on :: port 22.
> Started LSB: Start up the OpenSSH server daemon.
> Started LSB: Starts the RPCSEC GSS client daemon.
> Starting NFS statd: Mounting other filesystems:  mount: sysfs already mounted 
> or /sys busy
> mount: according to mtab, /sys is already mounted on /sys
> [FAILED]
[   24.897287] rpc.statd[698]: Version 1.2.3 starting
> 
> [   24.974556] sm-notify[700]: Version 1.2.3 starting
> Started LSB: Mount and unmount network filesystems..
> Starting Permit User Sessions...
> Started Permit User Sessions.
> Starting Getty on tty6...
> Started Getty on tty6.
> Starting Getty on tty3...
> Started Getty on tty3.
> Starting Getty on tty1...
> Started Getty on tty1.
> Starting Getty on tty5...
> Started Getty on tty5.
> Starting Getty on tty4...
> Started Getty on tty4.
> Starting Getty on tty2...
> Started Getty on tty2.
> Starting Serial Getty on hvc0...
> Starting RPC idmapd: Started Serial Getty on hvc0.
> [  OK  ]
> Started LSB: Start up the NFS file locking sevice.
> [   25.839750] RPC: Registered udp transport module.
> [   25.844301] RPC: Registered tcp transport module.
> [   25.848456] RPC: Registered tcp NFSv4.1 backchannel transport module.
> [  OK  ]
> Started LSB: Starts the NFSv4 id mapping daemon.
> [   26.302170] systemd[1]: Startup finished in 2s 81ms 846us (kernel) + 7s 
> 471ms 327us (initrd) + 16s 743ms 473us (userspace) = 26s 296ms 646us.
> 
> Fedora release 15 (Lovelock)
> Kernel 2.6.38.2-9.fc15.i686.PAEdebug on an i686 (hvc0)
> 
> dhcp-26-219.brq.redhat.com login: [   30.354084] eth0: no IPv6 routers present
> 
> Fedora release 15 (Lovelock)
> Kernel 2.6.38.2-9.fc15.i686.PAEdebug on an i686 (hvc0)
> 
> dhcp-26-219.brq.redhat.com login: 

> _______________________________________________
> Xen-devel mailing list
> Xen-devel@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-devel


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