http://bugzilla.kernel.org/show_bug.cgi?id=10124

           Summary: Intel SC450NX system stops working with kernels later
                    than 2.6.22.x
           Product: ACPI
           Version: 2.5
     KernelVersion: 2.6.25-rc3
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Config-Interrupts
        AssignedTo: [EMAIL PROTECTED]
        ReportedBy: [EMAIL PROTECTED]


Latest working kernel version: 2.6.22.x
Earliest failing kernel version: 2.6.23.x (haven't yet tested the rc's)
Distribution: Debian Sid
Hardware Environment: Intel SC450NX system (Quad P3 Xeon)
Software Environment: Debian Sid
Problem Description:
With all kernels I have tried later than 2.6.22.x my SC450NX system hangs a
long time at boot with messages like:

scsi 0:0:6:0: ABORT operation timed-out.
scsi 0:0:6:0: DEVICE RESET operation started
scsi 1:0:6:0: ABORT operation timed-out.
scsi 1:0:6:0: DEVICE RESET operation started
scsi 0:0:6:0: DEVICE RESET operation timed-out.
scsi 0:0:6:0: BUS RESET operation started
scsi 1:0:6:0: DEVICE RESET operation timed-out.
scsi 1:0:6:0: BUS RESET operation started
scsi 0:0:6:0: BUS RESET operation timed-out.
scsi 0:0:6:0: HOST RESET operation started
sym0: SCSI BUS has been reset.
scsi 1:0:6:0: BUS RESET operation timed-out.
scsi 1:0:6:0: HOST RESET operation started
sym1: SCSI BUS has been reset.
scsi 0:0:6:0: HOST RESET operation timed-out.
scsi 0:0:6:0: Device offlined - not ready after error recovery
scsi 1:0:6:0: HOST RESET operation timed-out.
scsi 1:0:6:0: Device offlined - not ready after error recovery
scsi 0:0:8:0: ABORT operation started
scsi 1:0:8:0: ABORT operation started

on all scsi ids (in use or not) on two scsi channels. This is alarming enough,
but when the system finally starts up, I also find that one of my nic's have
stopped working.

A quick check at /proc/interrupts shows that there are lot's of differences
from the "usual" interrupts. I'll attach /proc/interrupts from both a working
and non working kernel, and post dmesg from both. The problem is that with the
2.6.25-rc3 kernel, I can't get the beginning of the dmesg.. Is there a trick
other than dmesg -s 65536?

Thanks :)

Steps to reproduce:


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