Bug#588509: hang sometimes occurs earlier
Hi,
I'm seeing the same issue (hang at boot of -17 kernel) but the hang is
sometimes much earlier in the boot process on my system:
[ 0.000000] Initializing cgroup subsys cpuset
[ 0.000000] Initializing cgroup subsys cpu
[ 0.000000] Linux version 2.6.32-5-amd64 (Debian 2.6.32-17)
(ben@decadent.org.uk) (gcc version 4.3.5 (Debian 4.3.5-1) ) #1 SMP Sun
Jul 11 01:44:28 UTC 2010
[ 0.000000] Command line: root=/dev/mapper/vgsilver-root ro
console=hvc0 console=tty0
[ 0.000000] KERNEL supported cpus:
[ 0.000000] Intel GenuineIntel
[ 0.000000] AMD AuthenticAMD
[ 0.000000] Centaur CentaurHauls
[ 0.000000] ACPI in unprivileged domain disabled
[ 0.000000] BIOS-provided physical RAM map:
[ 0.000000] Xen: 0000000000000000 - 00000000000a0000 (usable)
[ 0.000000] Xen: 00000000000a0000 - 0000000000100000 (reserved)
[ 0.000000] Xen: 0000000000100000 - 0000000080000000 (usable)
[ 0.000000] DMI not present or invalid.
[ 0.000000] last_pfn = 0x80000 max_arch_pfn = 0x400000000
[ 0.000000] init_memory_mapping: 0000000000000000-0000000080000000
[ 0.000000] RAMDISK: 016a5000 - 031dc000
[ 0.000000] No NUMA configuration found
[ 0.000000] Faking a node at 0000000000000000-0000000080000000
[ 0.000000] Bootmem setup node 0 0000000000000000-0000000080000000
[ 0.000000] NODE_DATA [0000000000008000 - 000000000000ffff]
[ 0.000000] bootmap [0000000000010000 - 000000000001ffff] pages 10
[ 0.000000] (7 early reservations) ==> bootmem [0000000000 - 0080000000]
[ 0.000000] #0 [0000000000 - 0000001000] BIOS data page ==>
[0000000000 - 0000001000]
[ 0.000000] #1 [00035df000 - 00035fe000] XEN PAGETABLES ==>
[00035df000 - 00035fe000]
[ 0.000000] #2 [0000006000 - 0000008000] TRAMPOLINE ==>
[0000006000 - 0000008000]
[ 0.000000] #3 [0001000000 - 0001684754] TEXT DATA BSS ==>
[0001000000 - 0001684754]
[ 0.000000] #4 [00016a5000 - 00031dc000] RAMDISK ==>
[00016a5000 - 00031dc000]
[ 0.000000] #5 [00031dc000 - 00035df000] XEN START INFO ==>
[00031dc000 - 00035df000]
[ 0.000000] #6 [0000100000 - 00004e1000] PGTABLE ==>
[0000100000 - 00004e1000]
[ 0.000000] Zone PFN ranges:
[ 0.000000] DMA 0x00000000 -> 0x00001000
[ 0.000000] DMA32 0x00001000 -> 0x00100000
[ 0.000000] Normal 0x00100000 -> 0x00100000
[ 0.000000] Movable zone start PFN for each node
[ 0.000000] early_node_map[2] active PFN ranges
[ 0.000000] 0: 0x00000000 -> 0x000000a0
[ 0.000000] 0: 0x00000100 -> 0x00080000
[ 0.000000] SFI: Simple Firmware Interface v0.7 http://simplefirmware.org
[ 0.000000] SMP: Allowing 2 CPUs, 0 hotplug CPUs
[ 0.000000] No local APIC present
[ 0.000000] APIC: disable apic facility
[ 0.000000] PM: Registered nosave memory: 00000000000a0000 -
0000000000100000
[ 0.000000] Allocating PCI resources starting at 80000000 (gap:
80000000:80000000)
[ 0.000000] Booting paravirtualized kernel on Xen
[ 0.000000] Xen version: 3.2-1
[ 0.000000] NR_CPUS:512 nr_cpumask_bits:512 nr_cpu_ids:2 nr_node_ids:1
[ 0.000000] PERCPU: Embedded 30 pages/cpu @ffff880003634000 s90328
r8192 d24360 u122880
sometimes the boot gets to the "Write protecting the kernel read-only
data" as mentioned in the bug report.
The VM was running 2.6.32-15 before without any real issues.
The dom0 runs Xen 3.2
Regards,
Rik
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