On Mon, Sep 05, 2011 at 11:31:16AM +0100, Anthony Wright wrote:
> I have two machines with identical Dom0's and DomUs, but different
> hardware. The Dom0 has a patch which I produced myself based on the "Re:
> [Xen-devel] Kernel bug from 3.0 (was phy disks and vifs timing out in
> DomU)" thread. The patch calls vmalloc_sync_all after every
> alloc_vm_area, and I realise this isn't the best solution, but it
> allowed me to move forward.
<nods>
>
> The patch fixes the problem I had on one machine, so that now the VMs
> boot correctly, but I have another system with an identical setup
> (identical Dom0 & DomU kernels, identical startup for DomU) and the VM
> fails to start. I have attached a copy of the console log from the good
> VM and the bad VM.
And what does the dom0 and xen hypervisor log give you?
It looks to be hanging at identifying the CPU - is the hardware
quite different from one setup to another? Have you toyed with
using the cpuid flag in the guest to mimic the lowest CPU type?
>
> Anthony.
>
>
> [ 3.226308] Reserving virtual address space above 0xf5800000
> [ 3.226308] Linux version 2.6.30.1 (root@deb-builder) (gcc version 4.3.2
> (GCC) ) #2 SMP Mon Jul 18 12:06:12 GMT 2011
> [ 3.226308] KERNEL supported cpus:
> [ 3.226308] Intel GenuineIntel
> [ 3.226308] AMD AuthenticAMD
> [ 3.226308] NSC Geode by NSC
> [ 3.226308] Cyrix CyrixInstead
> [ 3.226308] Centaur CentaurHauls
> [ 3.226308] Transmeta GenuineTMx86
> [ 3.226308] Transmeta TransmetaCPU
> [ 3.226308] UMC UMC UMC UMC
> [ 3.226308] BIOS-provided physical RAM map:
> [ 3.226308] Xen: 0000000000000000 - 00000000000a0000 (usable)
> [ 3.226308] Xen: 00000000000a0000 - 0000000000100000 (reserved)
> [ 3.226308] Xen: 0000000000100000 - 000000000065c000 (usable)
> [ 3.226308] Xen: 000000000065c000 - 0000000000759000 (reserved)
> [ 3.226308] Xen: 0000000000759000 - 000000003e800000 (usable)
> [ 3.226308] DMI not present or invalid.
> [ 3.226308] last_pfn = 0x3e800 max_arch_pfn = 0x1000000
> [ 3.226308] init_memory_mapping: 0000000000000000-00000000229fe000
> [ 3.226308] NX (Execute Disable) protection: active
> [ 3.226308] 446MB HIGHMEM available.
> [ 3.226308] 553MB LOWMEM available.
> [ 3.226308] mapped low ram: 0 - 229fe000
> [ 3.226308] low ram: 0 - 229fe000
> [ 3.226308] node 0 low ram: 00000000 - 229fe000
> [ 3.226308] node 0 bootmap 00007000 - 0000b540
> [ 3.226308] (7 early reservations) ==> bootmem [0000000000 - 00229fe000]
> [ 3.226308] #0 [0000000000 - 0000001000] BIOS data page ==>
> [0000000000 - 0000001000]
> [ 3.226308] #1 [0000759000 - 000075f000] XEN PAGETABLES ==>
> [0000759000 - 000075f000]
> [ 3.226308] #2 [0000001000 - 0000002000] EX TRAMPOLINE ==>
> [0000001000 - 0000002000]
> [ 3.226308] #3 [0000006000 - 0000007000] TRAMPOLINE ==>
> [0000006000 - 0000007000]
> [ 3.226308] #4 [0000100000 - 00005366f4] TEXT DATA BSS ==>
> [0000100000 - 00005366f4]
> [ 3.226308] #5 [0000537000 - 0000645000] PGTABLE ==>
> [0000537000 - 0000645000]
> [ 3.226308] #6 [0000007000 - 000000c000] BOOTMAP ==>
> [0000007000 - 000000c000]
> [ 3.226308] Zone PFN ranges:
> [ 3.226308] DMA 0x00000000 -> 0x00001000
> [ 3.226308] Normal 0x00001000 -> 0x000229fe
> [ 3.226308] HighMem 0x000229fe -> 0x0003e800
> [ 3.226308] Movable zone start PFN for each node
> [ 3.226308] early_node_map[3] active PFN ranges
> [ 3.226308] 0: 0x00000000 -> 0x000000a0
> [ 3.226308] 0: 0x00000100 -> 0x0000065c
> [ 3.226308] 0: 0x00000759 -> 0x0003e800
> [ 3.226308] Using APIC driver default
> [ 3.226308] SMP: Allowing 1 CPUs, 0 hotplug CPUs
> [ 3.226308] Local APIC disabled by BIOS -- you can enable it with "lapic"
> [ 3.226308] Allocating PCI resources starting at 40000000 (gap:
> 3e800000:c1800000)
> [ 3.226308] NR_CPUS:8 nr_cpumask_bits:8 nr_cpu_ids:1 nr_node_ids:1
> [ 3.226308] PERCPU: Allocated 6 4k pages, static data 22940 bytes
> [ 3.810521] Xen: using vcpu_info placement
> [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total
> pages: 253650
> [ 0.000000] Kernel command line: root=/dev/xvda1
> [ 0.000000] Enabling fast FPU save and restore... done.
> [ 0.000000] Enabling unmasked SIMD FPU exception support... done.
> [ 0.000000] Initializing CPU#0
> [ 0.000000] NR_IRQS:512
> [ 0.000000] PID hash table entries: 4096 (order: 12, 16384 bytes)
> [ 0.000000] Detected 2533.458 MHz processor.
> [ 0.010000] Console: colour dummy device 80x25
> [ 0.010000] console [tty0] enabled
> [ 0.010000] console [hvc0] enabled
> [ 0.010000] Dentry cache hash table entries: 131072 (order: 7, 524288
> bytes)
> [ 0.010000] Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
> [ 0.010000] Initializing HighMem for node 0 (000229fe:0003e800)
> [ 0.010000] Memory: 1007448k/1024000k available (2539k kernel code, 14292k
> reserved, 1067k data, 244k init, 456712k highmem)
> [ 0.010000] virtual kernel memory layout:
> [ 0.010000] fixmap : 0xf574f000 - 0xf57ff000 ( 704 kB)
> [ 0.010000] pkmap : 0xf5200000 - 0xf5400000 (2048 kB)
> [ 0.010000] vmalloc : 0xe31fe000 - 0xf51fe000 ( 288 MB)
> [ 0.010000] lowmem : 0xc0000000 - 0xe29fe000 ( 553 MB)
> [ 0.010000] .init : 0xc0490000 - 0xc04cd000 ( 244 kB)
> [ 0.010000] .data : 0xc037ae1d - 0xc0485e18 (1067 kB)
> [ 0.010000] .text : 0xc0100000 - 0xc037ae1d (2539 kB)
> [ 0.010000] Checking if this processor honours the WP bit even in
> supervisor mode...Ok.
> [ 0.010000] installing Xen timer for CPU 0
> [ 0.010000] Calibrating delay loop (skipped), value calculated using timer
> frequency.. 5066.91 BogoMIPS (lpj=25334580)
> [ 0.010000] Mount-cache hash table entries: 512
> [ 3.226308] Reserving virtual address space above 0xf5800000
> [ 3.226308] Linux version 2.6.30.1 (root@deb-builder) (gcc version 4.3.2
> (GCC) ) #2 SMP Mon Jul 18 12:06:12 GMT 2011
> [ 3.226308] KERNEL supported cpus:
> [ 3.226308] Intel GenuineIntel
> [ 3.226308] AMD AuthenticAMD
> [ 3.226308] NSC Geode by NSC
> [ 3.226308] Cyrix CyrixInstead
> [ 3.226308] Centaur CentaurHauls
> [ 3.226308] Transmeta GenuineTMx86
> [ 3.226308] Transmeta TransmetaCPU
> [ 3.226308] UMC UMC UMC UMC
> [ 3.226308] BIOS-provided physical RAM map:
> [ 3.226308] Xen: 0000000000000000 - 00000000000a0000 (usable)
> [ 3.226308] Xen: 00000000000a0000 - 0000000000100000 (reserved)
> [ 3.226308] Xen: 0000000000100000 - 000000000065c000 (usable)
> [ 3.226308] Xen: 000000000065c000 - 0000000000759000 (reserved)
> [ 3.226308] Xen: 0000000000759000 - 000000003e800000 (usable)
> [ 3.226308] DMI not present or invalid.
> [ 3.226308] last_pfn = 0x3e800 max_arch_pfn = 0x1000000
> [ 3.226308] init_memory_mapping: 0000000000000000-00000000229fe000
> [ 3.226308] NX (Execute Disable) protection: active
> [ 3.226308] 446MB HIGHMEM available.
> [ 3.226308] 553MB LOWMEM available.
> [ 3.226308] mapped low ram: 0 - 229fe000
> [ 3.226308] low ram: 0 - 229fe000
> [ 3.226308] node 0 low ram: 00000000 - 229fe000
> [ 3.226308] node 0 bootmap 00007000 - 0000b540
> [ 3.226308] (7 early reservations) ==> bootmem [0000000000 - 00229fe000]
> [ 3.226308] #0 [0000000000 - 0000001000] BIOS data page ==>
> [0000000000 - 0000001000]
> [ 3.226308] #1 [0000759000 - 000075f000] XEN PAGETABLES ==>
> [0000759000 - 000075f000]
> [ 3.226308] #2 [0000001000 - 0000002000] EX TRAMPOLINE ==>
> [0000001000 - 0000002000]
> [ 3.226308] #3 [0000006000 - 0000007000] TRAMPOLINE ==>
> [0000006000 - 0000007000]
> [ 3.226308] #4 [0000100000 - 00005366f4] TEXT DATA BSS ==>
> [0000100000 - 00005366f4]
> [ 3.226308] #5 [0000537000 - 0000645000] PGTABLE ==>
> [0000537000 - 000 default
> [ 3.226308] SMP: Allowing 1 CPUs, 0 hotplug CPUs
> [ 3.226308] Local APIC disabled by BIOS -- you can enable it with "lapic"
> [ 3.226308] Allocating PCI resources starting at 40000000 (gap:
> 3e800000:c1800000)
> [ 3.226308] NR_CPUS:8 nr_cpumask_bits:8 nr_cpu_ids:1 nr_node_ids:1
> [ 3.226308] PERCPU: Allocated 6 4k pages, static data 22940 bytes
> [ 3.810521] Xen: using vcpu_info placement
> [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total
> pages: 253650
> [ 0.000000] Kernel command line: root=/dev/xvda1
> [ 0.000000] Enabling fast FPU save and restore... done.
> [ 0.000000] Enabling unmasked SIMD FPU exception support... done.
> [ 0.000000] Initializing CPU#0
> [ 0.000000] NR_IRQS:512
> [ 0.000000] PID hash table entries: 4096 (order: 12, 16384 bytes)
> [ 0.000000] Detected 3013.788 MHz processor.
> [ 0.010000] Console: colour dummy device 80x25
> [ 0.010000] console [tty0] enabled
> [ 0.010000] console [hvc0] enabled
> [ 0.010000] Dentry cache hash table entries: 131072 (order: 7, 524288
> bytes)
> [ 0.010000] Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
> [ 0.010000] Initializing HighMem for node 0 (000229fe:0003e800)
> [ 0.010000] Memory: 1007448k/1024000k available (2539k kernel code, 14292k
> reserved, 1067k data, 244k init, 456712k highmem)
> [ 0.010000] virtual kernel memory layout:
> [ 0.010000] fixmap : 0xf574f000 - 0xf57ff000 ( 704 kB)
> [ 0.010000] pkmap : 0xf5200000 - 0xf5400000 (2048 kB)
> [ 0.010000] vmalloc : 0xe31fe000 - 0xf51fe000 ( 288 MB)
> [ 0.010000] lowmem : 0xc0000000 - 0xe29fe000 ( 553 MB)
> [ 0.010000] .init : 0xc0490000 - 0xc04cd000 ( 244 kB)
> [ 0.010000] .data : 0xc037ae1d - 0xc0485e18 (1067 kB)
> [ 0.010000] .text : 0xc0100000 - 0xc037ae1d (2539 kB)
> [ 0.010000] Checking if this processor honours the WP bit even in
> supervisor mode...Ok.
> [ 0.010000] installing Xen timer for CPU 0
> [ 0.010000] Calibrating delay loop (skipped), value calculated using timer
> frequency.. 6027.57 BogoMIPS (lpj=30137880)
> [ 0.010000] Mount-cache hash table entries: 512
> [ 0.010000] CPU: L1 I Cache: 64K (64 bytes/line), D cache 64K (64
> bytes/line)
> [ 0.010000] CPU: L2 Cache: 1024K (64 bytes/line)
> [ 0.010000] CPU: Physical Processor ID: 0
> [ 0.010000] CPU: Processor Core ID: 0
> [ 0.010000] SMP alternatives: switching to UP code
> [ 0.010000] Freeing SMP alternatives: 28k freed
> [ 0.010180] Brought up 1 CPUs
> [ 0.010394] net_namespace: 452 bytes
> [ 0.010403] Booting paravirtualized kernel on Xen
> [ 0.010408] Xen version: 4.1.1 (preserve-AD)
> [ 0.010445] xor: automatically using best checksumming function: pIII_sse
> [ 0.060003] pIII_sse : 2499.200 MB/sec
> [ 0.060011] xor: using function: pIII_sse (2499.200 MB/sec)
> [ 0.060054] Grant table initialized
> [ 0.060094] NET: Registered protocol family 16
> [ 0.062835] bio: create slab <bio-0> at 0
> [ 0.063164] xen_balloon: Initialising balloon driver.
> [ 0.230016] raid6: int32x1 774 MB/s
> [ 0.400011] raid6: int32x2 1342 MB/s
> [ 0.570087] raid6: int32x4 649 MB/s
> [ 0.740008] raid6: int32x8 802 MB/s
> [ 0.910011] raid6: mmxx1 2348 MB/s
> [ 1.080015] raid6: mmxx2 4362 MB/s
> [ 1.250030] raid6: sse1x1 1907 MB/s
> [ 1.420018] raid6: sse1x2 2746 MB/s
> [ 1.590025] raid6: sse2x1 3313 MB/s
> [ 1.760017] raid6: sse2x2 4325 MB/s
> [ 1.760033] raid6: using algorithm sse2x2 (4325 MB/s)
> [ 1.760643] NET: Registered protocol family 2
> [ 1.760683] IP route cache hash table entries: 32768 (order: 5, 131072
> bytes)
> [ 1.760767] TCP established hash table entries: 131072 (order: 8, 1048576
> bytes)
> [ 1.761182] TCP bind hash table entries: 65536 (order: 7, 524288 bytes)
> [ 1.761437] TCP: Hash tables configured (established 131072 bind 65536)
> [ 1.761445] TCP reno registered
> [ 1.761513] NET: Registered protocol family 1
> [ 1.761732] platform rtc_cmos: registered platform RTC device (no PNP
> device found)
> [ 1.762311] highmem bounce pool size: 64 pages
> [ 1.762325] HugeTLB registered 2 MB page size, pre-allocated 0 pages
> [ 1.762389] VFS: Disk quotas dquot_6.5.2
> [ 1.762401] Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
> [ 1.762499] squashfs: version 4.0 (2009/01/31) Phillip Lougher
> [ 1.762596] Installing knfsd (copyright (C) 1996 okir@xxxxxxxxxxxx).
> [ 1.762940] msgmni has been set to 1107
> [ 1.763134] alg: No test for stdrng (krng)
> [ 1.763146] async_tx: api initialized (sync-only)
> [ 1.763155] io scheduler noop registered
> [ 1.763160] io scheduler anticipatory registered (default)
> [ 1.763165] io scheduler deadline registered
> [ 1.763180] io scheduler cfq registered
> [ 1.766472] loop: module loaded
> [ 1.783564] Initialising Xen virtual ethernet driver.
> [ 1.785475] blkfront: xvda1: barriers enabled
> [ 1.788158] blkfront: xvda2: barriers enabled
> [ 1.789731] i8042.c: No controller found.
> [ 1.790197] mice: PS/2 mouse device common for all mice
> [ 1.790238] md: linear personality registered for level -1
> [ 1.790244] md: raid0 personality registered for level 0
> [ 1.790249] md: raid1 personality registered for level 1
> [ 1.790254] md: raid10 personality registered for level 10
> [ 1.790259] md: raid6 personality registered for level 6
> [ 1.790264] md: raid5 personality registered for level 5
> [ 1.790268] md: raid4 personality registered for level 4
> [ 1.790273] md: multipath personality registered for level -4
> [ 1.790278] md: faulty personality registered for level -5
> [ 1.790305] device-mapper: uevent: version 1.0.3
> [ 1.790378] device-mapper: ioctl: 4.14.0-ioctl (2008-04-23) initialised:
> dm-devel@xxxxxxxxxx
> [ 1.790454] device-mapper: multipath: version 1.0.5 loaded
> [ 1.790460] device-mapper: multipath round-robin: version 1.0.0 loaded
> [ 1.790554] oprofile: using timer interrupt.
> [ 1.790565] Netfilter messages via NETLINK v0.30.
> [ 1.790604] xt_time: kernel timezone is -0000
> [ 1.790625] ip_tables: (C) 2000-2006 Netfilter Core Team
> [ 1.790646] arp_tables: (C) 2002 David S. Miller
> [ 1.790656] TCP cubic registered
> [ 1.790661] NET: Registered protocol family 17
> [ 1.790680] Bridge firewalling registered
> [ 1.790742] RPC: Registered udp transport module.
> [ 1.790747] RPC: Registered tcp transport module.
> [ 1.790766] Using IPI No-Shortcut mode
> [ 1.890171] md: Waiting for all devices to be available before autodetect
> [ 1.890188] md: If you don't use raid, use raid=noautodetect
> [ 1.890361] md: Autodetecting RAID arrays.
> [ 1.890367] md: Scanned 0 and added 0 devices.
> [ 1.890371] md: autorun ...
> [ 1.890374] md: ... autorun DONE.
> [ 1.892999] VFS: Mounted root (squashfs filesystem) readonly on device
> 202:1.
> [ 1.893048] Freeing unused kernel memory: 244k freed
> _______________________________________________
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