[Xen-devel] Re: BUG: unable to handle kernel NULL pointer dereference (4.0.1 w/2.6.32.36)

[Quartexx <quartex73@xxxxxxxxx>]

adding:

this of course happens on dom0 (I forgot to specify) and I see these
messages in log at boot:

# grep interr /var/log/messages
May 26 01:03:14 xenhost-rack1 kernel: [    3.552913] ACPI: Using
IOAPIC for interrupt routing
May 26 01:03:47 xenhost-rack1 kernel: [   53.087139] hrtimer:
interrupt took 189967875 ns
May 27 06:08:43 xenhost-rack1 kernel: [    3.571617] ACPI: Using
IOAPIC for interrupt routing
May 27 06:09:16 xenhost-rack1 kernel: [   66.241242] hrtimer:
interrupt took 149989194 ns


Maybe it's not related to BUG that I hit.  (but that hrtimer line does
not seem good.)

Some hardware info:
description: System
    product: S3420GP
    vendor: Intel Corporation
    version: ....................
    serial: ............
    width: 64 bits
    capabilities: smbios-2.5 dmi-2.5 vsyscall64 vsyscall32
    configuration: administrator_password=disabled boot=normal chassis=server fr
ontpanel_password=disabled keyboard_password=disabled power-on_password=disabled
 uuid=0FD8E440-1952-11E0-B578-001E6702C2CA
  *-core
       description: Motherboard
       product: S3420GP
       vendor: Intel Corporation
       physical id: 0
     *-memory
          description: System Memory
          physical id: 2e
          slot: System board or motherboard
          size: 16GiB
     *-cpu:0
          description: CPU
          product: Intel(R) Xeon(R) CPU           X3430  @ 2.40GHz
          vendor: Intel Corp.
          physical id: 3b
          bus info: cpu@0
          version: Intel(R) Xeon(R) CPU           X3430  @ 2.40GHz
          slot: CPU1
          size: 2400MHz
          capacity: 4GHz
          width: 64 bits
          clock: 133MHz
           *-storage
                description: RAID bus controller
                product: 9690SA SAS/SATA-II RAID PCIe
                vendor: 3ware Inc
                physical id: 0
                bus info: pci@0000:01:00.0
                logical name: scsi0
                version: 01
                width: 64 bits
                clock: 33MHz
                capabilities: storage pm msi pciexpress bus_master cap_list rom
emulated
                configuration: driver=3w-9xxx latency=0
                resources: irq:16 memory:b0000000-b1ffffff(prefetchable) memory:
b3a00000-b3a00fff ioport:2000(size=256) memory:b3a20000-b3a3ffff(prefetchable)


I experienced controller reset but last lsi firmware seems to fix that

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