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    SubjectPCI Sanity check breaks on Compaq Deskpro XL 590 traced to 2.1.115
    Date
    I thought I would send this to the kernel mailing list just in case 
    someone else has the same problem as me.


    -----


    I own a Compaq Deskpro XL 590 and I am having problems with PCI and the
    latest kernels. I would like to point out two things I have notice
    (after many hours of kernel compiling and testing ;> )

    At the bottom of the message is as much info as I though possible to
    send. Let me know if you need more.

    First the PCI Sanity check intruced in 2.1.115 is invalide on my
    machine. I added a "return 1" in the sanity check function to see, and
    fair enought PCI started working again.

    Second the directory address changes from the stable kernel to the
    development kernels (even in 2.1.1) (Ever tryed booting one hundred
    kernels hehe)

    So here is the info, I will be more then happy to help.


    ====kernel 2.1.123====

    ---syslogOct 5 16:33:45 med kernel: Linux version 2.1.123
    (root@med.can.eds.com) (gcc version 2.7.2.3) #
    7 SMP Mon Oct 5 16:29:05 EDT 1998
    Oct 5 16:33:45 med kernel: mapped APIC to ffffe000 (0024d000)
    Oct 5 16:33:45 med kernel: mapped IOAPIC to ffffd000 (0024e000)
    Oct 5 16:33:45 med kernel: Console: colour VGA+ 80x25
    Oct 5 16:33:45 med kernel: Calibrating delay loop... 35.94 BogoMIPS
    Oct 5 16:33:45 med kernel: Memory: 30636k/32768k available (940k kernel
    code, 416k reserved, 73
    2k data, 44k init)
    Oct 5 16:33:45 med kernel: Checking 386/387 coupling... OK, FPU using
    exception 16 error report
    ing.
    Oct 5 16:33:45 med kernel: Checking 'hlt' instruction... OK.
    Oct 5 16:33:45 med kernel: Intel Pentium with F0 0F bug - workaround
    enabled.
    Oct 5 16:33:45 med kernel: POSIX conformance testing by UNIFIX
    Oct 5 16:33:45 med kernel: CPU0: Intel Pentium 75+ stepping 05
    Oct 5 16:33:45 med kernel: SMP motherboard not detected. Using dummy
    APIC emulation.
    Oct 5 16:33:45 med kernel: PCI: No Sanity check by Martin Giguere
    Oct 5 16:33:45 med kernel: PCI: Using configuration type 1
    Oct 5 16:33:45 med kernel: PCI: Probing PCI hardware
    Oct 5 16:33:45 med kernel: Swansea University Computer Society NET3.039
    for Linux 2.1
    Oct 5 16:33:45 med kernel: NET3: Unix domain sockets 0.16 for Linux
    NET3.038.
    Oct 5 16:33:45 med kernel: Swansea University Computer Society TCP/IP
    for NET3.037
    Oct 5 16:33:45 med kernel: IP Protocols: ICMP, UDP, TCP

    --/proc/pci

    PCI devices found:
    Bus 0, device 0, function 0:
    Non-VGA device: Compaq Unknown device (rev 1).
    Vendor id=e11. Device id=1000.
    Medium devsel. Master Capable. Latency=32.
    Non-prefetchable 32 bit memory at 0x2000010 [0x2000010].
    Non-prefetchable 32 bit memory at 0x2000010 [0x2000010].
    I/O at 0x10000e10 [0x10000e11].
    I/O at 0xe2000144 [0xe2000147].
    Bus 0, device 11, function 0:
    Ethernet controller: AMD 79C970 (rev 2).
    Medium devsel. IRQ a. Master Capable. No bursts.
    I/O at 0x7000 [0x7001].
    Bus 0, device 12, function 0:
    SCSI storage controller: AMD 53C974 (rev 2).
    Medium devsel. IRQ b. Master Capable. No bursts.
    I/O at 0x7100 [0x7101].
    Bus 0, device 13, function 0:
    VGA compatible controller: Matrox MGA Impression (rev 0).
    Medium devsel.
    Non-prefetchable 32 bit memory at 0x2200000 [0x2200000].
    Bus 0, device 15, function 0:
    EISA bridge: Compaq Unknown device (rev 3).
    Vendor id=e11. Device id=1.
    Medium devsel. Master Capable. No bursts.


    --- /proc/bus/pci/devices
    0000 0e111000 0 02000010 00000000 02000010
    00000000 10000e11 e2000147 02000010
    0058 10222000 a 00007001 00000000 00000000
    00000000 00000000 00000000 00000000
    0060 10222020 b 00007101 00000000 00000000
    00000000 00000000 00000000 00000000
    0068 102b0d10 0 02200000 00000000 00000000
    00000000 00000000 00000000 00000000
    0078 0e110001 0 00000000 00000000 00000000
    00000000 00000000 00000000 00000000


    [root@med log]# ls /proc/bus/pci/00/
    00.0 0b.0 0c.0 0d.0 0f.0


    ====kernel 2.0.35====

    ---Syslog:

    Oct 2 15:28:54 med kernel: klogd 1.3-3, log source = /proc/kmsg
    started.
    Oct 2 15:28:54 med kernel: Loaded 4215 symbols from /boot/System.map.
    Oct 2 15:28:54 med kernel: Symbols match kernel version 2.0.35.
    Oct 2 15:28:54 med kernel: Loaded 3 symbols from 3 modules.
    Oct 2 15:28:54 med kernel: Console: 16 point font, 400 scans
    Oct 2 15:28:55 med kernel: Console: colour VGA+ 80x25, 1 virtual
    console (max 63)
    Oct 2 15:28:55 med kernel: pcibios_init : BIOS32 Service Directory
    structure at 0x000fa000
    Oct 2 15:28:55 med kernel: pcibios_init: entry in high memory, trying
    direct PCI access
    Oct 2 15:28:55 med kernel: pcibios_init: Using configuration type 1
    Oct 2 15:28:55 med kernel: Probing PCI hardware.
    Oct 2 15:28:55 med kernel: Calibrating delay loop.. ok - 35.94 BogoMIPS
    Oct 2 15:28:55 med kernel: Memory: 14676k/16384k available (740k kernel
    code, 384k reserved, 58
    4k data)
    Oct 2 15:28:55 med kernel: Swansea University Computer Society NET3.035
    for Linux 2.0
    Oct 2 15:28:55 med kernel: NET3: Unix domain sockets 0.13 for Linux
    NET3.035.
    Oct 2 15:28:55 med kernel: Swansea University Computer Society TCP/IP
    for NET3.034
    Oct 2 15:28:55 med kernel: IP Protocols: IGMP, ICMP, UDP, TCP
    Oct 2 15:28:55 med kernel: VFS: Diskquotas version dquot_5.6.0
    initialized
    Oct 2 15:28:55 med kernel:
    Oct 2 15:28:55 med kernel: Checking 386/387 coupling... Ok, fpu using
    exception 16 error report
    ing.
    Oct 2 15:28:55 med kernel: Checking 'hlt' instruction... Ok.
    Oct 2 15:28:55 med kernel: Intel Pentium with F0 0F bug - workaround
    enabled.

    ---/proc/cpu

    PCI devices found:
    Bus 0, device 15, function 0:
    EISA bridge: Compaq Unknown device (rev 3).
    Vendor id=e11. Device id=1.
    Medium devsel. Master Capable. No bursts.
    Bus 0, device 13, function 0:
    VGA compatible controller: Matrox MGA Impression (rev 0).
    Medium devsel. IRQ 255.
    Non-prefetchable 32 bit memory at 0x2200000.
    Bus 0, device 12, function 0:
    SCSI storage controller: AMD 53C974 (rev 2).
    Medium devsel. IRQ 11. Master Capable. No bursts.
    I/O at 0x7100.
    Bus 0, device 11, function 0:
    Ethernet controller: AMD 79C970 (rev 2).
    Medium devsel. IRQ 10. Master Capable. No bursts.
    I/O at 0x7000.
    Bus 0, device 0, function 0:
    Non-VGA device: Compaq Unknown device (rev 1).
    Vendor id=e11. Device id=1000.
    Medium devsel. Master Capable. Latency=32.
    Non-prefetchable 32 bit memory at 0x2000010.

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