Hi Stefan, Here is the output of /proc/interrupts.
CPU0 0: 13908 XT-PIC-XT timer 1: 387 XT-PIC-XT i8042 2: 0 XT-PIC-XT cascade 3: 4 XT-PIC-XT 4: 9 XT-PIC-XT serial 5: 3 XT-PIC-XT 6: 2 XT-PIC-XT 7: 1 XT-PIC-XT parport0 8: 3 XT-PIC-XT rtc 9: 115 XT-PIC-XT acpi 10: 3 XT-PIC-XT 11: 2412 XT-PIC-XT uhci_hcd:usb1, uhci_hcd:usb2, uhci_hcd:usb3, Intel 82801CA-ICH3, yenta, yenta, eth0 12: 149 XT-PIC-XT i8042 14: 4741 XT-PIC-XT libata 15: 84 XT-PIC-XT libata NMI: 0 Non-maskable interrupts LOC: 0 Local timer interrupts RES: 0 Rescheduling interrupts CAL: 0 function call interrupts TLB: 0 TLB shootdowns TRM: 0 Thermal event interrupts SPU: 0 Spurious interrupts ERR: 0 MIS: 0 Here is dmesg report (ttyS*): [ 20.310736] serial8250: ttyS0 at I/O 0x3f8 (irq = 4) is a NS16550A [ 20.384974] serial8250: ttyS1 at I/O 0x2f8 (irq = 3) is a NS16550A [ 20.459866] 00:09: ttyS0 at I/O 0x3f8 (irq = 4) is a NS16550A Interrupt 3 is reserved in the bios as ttyS1 (Infrared). I have disabled the infrared port and tried the card again, but the same kernel crash comes again. I have attached the crash report with serial port 2 disabled. Quinn ** Attachment added: "Kernel crash report for 2.6.24-17 with serial port 2 disabled" http://launchpadlibrarian.net/16211174/dtl1_cs-2.6.24-ttyS1-disabled.txt -- dtl1_cs causes kernel panic when plugged in https://bugs.launchpad.net/bugs/217659 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs