server reboot and updates APIC timer interrupts in messages

[skt_skt]

Jan 28 18:05:07 afliasl2d kernel: ACPI table found: APIC v1 [DELL PE2600 0.1]
Jan 28 18:05:07 afliasl2d kernel: LAPIC (acpi_id[0x0001] id[0x0] enabled[1])
Jan 28 18:05:07 afliasl2d kernel: CPU 0 (0x0000) enabledProcessor #0 Pentium 4(tm) XEON(tm) APIC version 20
Jan 28 18:05:07 afliasl2d kernel: LAPIC (acpi_id[0x0002] id[0x6] enabled[1])
Jan 28 18:05:07 afliasl2d kernel: CPU 1 (0x0600) enabledProcessor #6 Pentium 4(tm) XEON(tm) APIC version 20
Jan 28 18:05:07 afliasl2d kernel: LAPIC (acpi_id[0x0003] id[0x1] enabled[1])
Jan 28 18:05:07 afliasl2d kernel: CPU 2 (0x0100) enabledProcessor #1 Pentium 4(tm) XEON(tm) APIC version 20
Jan 28 18:05:07 afliasl2d kernel: LAPIC (acpi_id[0x0004] id[0x7] enabled[1])
Jan 28 18:05:07 afliasl2d kernel: CPU 3 (0x0700) enabledProcessor #7 Pentium 4(tm) XEON(tm) APIC version 20
Jan 28 18:05:07 afliasl2d kernel: IOAPIC (id[0x8] address[0xfec00000] global_irq_base[0x0])
Jan 28 18:05:07 afliasl2d kernel: IOAPIC (id[0x9] address[0xfec80000] global_irq_base[0x18])
Jan 28 18:05:07 afliasl2d kernel: IOAPIC (id[0xa] address[0xfec81000] global_irq_base[0x48])
Jan 28 18:05:07 afliasl2d kernel: IOAPIC (id[0xb] address[0xfec82000] global_irq_base[0x78])
Jan 28 18:05:07 afliasl2d kernel: IOAPIC (id[0xc] address[0xfec82800] global_irq_base[0x90])
Jan 28 18:05:07 afliasl2d kernel: LAPIC_NMI (acpi_id[0x0001] polarity[0x1] trigger[0x1] lint[0x1])
Jan 28 18:05:07 afliasl2d kernel: LAPIC_NMI (acpi_id[0x0002] polarity[0x1] trigger[0x1] lint[0x1])
Jan 28 18:05:07 afliasl2d kernel: LAPIC_NMI (acpi_id[0x0003] polarity[0x1] trigger[0x1] lint[0x1])
Jan 28 18:05:07 afliasl2d kernel: LAPIC_NMI (acpi_id[0x0004] polarity[0x1] trigger[0x1] lint[0x1])
Jan 28 18:05:07 afliasl2d kernel: Local APIC address fee00000
Jan 28 18:05:07 afliasl2d kernel: OEM ID: DELL Product ID: PE 0123 APIC at: 0xFEE00000
Jan 28 18:05:07 afliasl2d kernel: I/O APIC #8 Version 32 at 0xFEC00000.
Jan 28 18:05:07 afliasl2d kernel: I/O APIC #9 Version 32 at 0xFEC80000.
Jan 28 18:05:07 afliasl2d kernel: I/O APIC #10 Version 32 at 0xFEC81000.
Jan 28 18:05:07 afliasl2d kernel: I/O APIC #11 Version 32 at 0xFEC82000.
Jan 28 18:05:07 afliasl2d kernel: I/O APIC #12 Version 32 at 0xFEC82800.
Jan 28 18:05:07 afliasl2d kernel: xAPIC support is present
Jan 28 18:05:07 afliasl2d kernel: Enabling APIC mode: Flat. Using 5 I/O APICs
Jan 28 18:05:07 afliasl2d kernel: ENABLING IO-APIC IRQs
Jan 28 18:05:07 afliasl2d kernel: ...changing IO-APIC physical APIC ID to 8 ... ok.
Jan 28 18:05:07 afliasl2d kernel: ...changing IO-APIC physical APIC ID to 9 ... ok.
Jan 28 18:05:07 afliasl2d kernel: ...changing IO-APIC physical APIC ID to 10 ... ok.
Jan 28 18:05:07 afliasl2d kernel: ...changing IO-APIC physical APIC ID to 11 ... ok.
Jan 28 18:05:07 afliasl2d kernel: ...changing IO-APIC physical APIC ID to 12 ... ok.
Jan 28 18:05:07 afliasl2d kernel: testing the IO APIC.......................
Jan 28 18:05:07 afliasl2d kernel: Using local APIC timer interrupts.
Jan 28 18:05:07 afliasl2d kernel: calibrating APIC timer ...
Jan 28 18:05:07 afliasl2d kernel: PCI->APIC IRQ transform: (B0,I29,P0) -> 16
Jan 28 18:05:07 afliasl2d kernel: PCI->APIC IRQ transform: (B0,I31,P0) -> 16
Jan 28 18:05:07 afliasl2d kernel: PCI->APIC IRQ transform: (B3,I1,P0) -> 28
Jan 28 18:05:07 afliasl2d kernel: PCI->APIC IRQ transform: (B8,I8,P0) -> 72
Jan 28 18:05:07 afliasl2d kernel: PCI->APIC IRQ transform: (B11,I2,P0) -> 18
Jan 28 18:05:07 afliasl2d kernel: PCI->APIC IRQ transform: (B11,I2,P1) -> 19
Jan 28 18:05:07 afliasl2d kernel: PCI->APIC IRQ transform: (B11,I2,P2) -> 20

Not sure if that is indicating a h/w problem..??

[skt_skt]

Looks like the powerChute UPS s/w (from APC)installed on the server is something to do with it..

[skt_skt]

confirmed the UPS/batterr problem caused the muitilpe reboot