Hi all! After booting the server I have this message: irq 50: nobody cared (try booting with the "irqpoll" option) Call Trace: <IRQ> [<ffffffff800c17e6>] __report_bad_irq+0x30/0x7d [<ffffffff800c1a19>] note_interrupt+0x1e6/0x227 [<ffffffff800c0f15>] __do_IRQ+0xbd/0x103 [<ffffffff8006e249>] do_IRQ+0x13f/0x14d [<ffffffff8006ca05>] default_idle+0x0/0x50 [<ffffffff80060665>] ret_from_intr+0x0/0xa <EOI> [<ffffffff8006ca2e>] default_idle+0x29/0x50 [<ffffffff8004b45d>] cpu_idle+0x77/0x96 [<ffffffff803f3826>] start_kernel+0x240/0x245 [<ffffffff803f3237>] _sinittext+0x237/0x23e handlers: [<ffffffff801df6c6>] (usb_hcd_irq+0x0/0x55) Disabling IRQ #50 # cat /proc/interrupts CPU0 CPU1 0: 100127 89815252 IO-APIC-edge timer 1: 144 82 IO-APIC-edge i8042 7: 0 0 IO-APIC-edge parport0 8: 0 1 IO-APIC-edge rtc 9: 0 0 IO-APIC-level acpi 12: 2783 1158 IO-APIC-edge i8042 50: 82343 17657 IO-APIC-level ehci_hcd:usb2 58: 0 87 IO-APIC-level ohci_hcd:usb3, HDA Intel 66: 0 0 IO-APIC-level ohci_hcd:usb4 98: 14065984 0 PCI-MSI eth0 233: 343943 698091 IO-APIC-level ehci_hcd:usb1, ahci NMI: 2027 2500 LOC: 89901484 89901412 ERR: 0 MIS: 0 Server works normal, but what should I do with this ? Disable a USB support ? Hardware: Asus M2N-VM DVI, Athlon X2 4800+, 6G DDR2 Centos 5.3 x86_64 If you wish, dmesg here: http://paix.org.ua/tmp/dmesg_270509.txt Thanks!. -- Best wishes, Sergej Kandyla