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    SubjectRe: v2.6 vs v3.0
    On Sun, 29 Sep 2002, Jens Axboe wrote:


    > On Sun, Sep 29 2002, Alan Cox wrote:
    > > On Sun, 2002-09-29 at 10:12, Jens Axboe wrote:
    > > > 2.5 is definitely desktop stable, so please test it if you can. Until
    > > > recently there was a personal show stopper for me, the tasklist
    > > > deadlock. Now 2.5 is happily running on my desktop as well.
    > >
    > > Its very hard to make that assessment when the audio layer still doesnt
    > > work, most scsi drivers havent been ported, most other drivers are full
    > > of 2.4 fixed problems and so on.
    > I can only talk for myself, 2.5 works fine here on my boxes. Dunno what
    > you mean about audio layer, emu10k works for me.
    > SCSI drivers can be a real problem. Not the porting of them, most of

    simply replying to one of you all ...

    Most important problem I currently see is that one of two kernels
    do not boot on my MP machine I use as a workstation.

    Apart from that and after early 2.5.3x probs were sorted out
    I already had 2.5-bk-kernels running and did the following on that
    MP machine:

    - compiled linux-2.5-bks
    - compiled X (runs with multi head)
    - listend to music (emu10k)
    - watched TV (bttv)
    - burned CDs (SCSI)
    - ran amanda: dumped multiple input streams from network to IDE disks
    before writing to SCSI tape
    - ran vmware (after patchwork to compile ;-)
    - started looking at sym53c416 cli() removal and had the scanner
    doing his work (started to debug some pnp things there too, results
    to be posted)
    - changed to devfs
    - printing and serial are fine too
    - the new input stuff now behaves properly too

    often did multiple things in parallel (watching tv while compiling
    a new kernel, ...)

    had really few crashes (~4-6 since 2.5.34)
    had some compilation probs with modules and MP but they got either
    fixed too fast or patches went into bk within 1-2 days :-)

    Going to check JFS (and XFS) in the near future...

    So I think I am either one almost happy person with a lotta luck or
    you all (did) do a very excellent job!!! ... but please get those
    MP (boot) probs sorted out ;-)

    Before you start asking what probs: this time it's around ACPI init.

    --- snipp ---
    PCI: PCI BIOS revision 2.10 entry at 0xfdb91, last bus=1
    PCI: Using configuration type 1
    ACPI: Subsystem revision 20020918
    tbxface-0099 [03] Acpi_load_tables : ACPI Tables successfully loaded
    Parsing Methods:......................................................................................................
    Table [DSDT] - 309 Objects with 22 Devices 102 Methods 19 Regions
    ACPI Namespace successfully loaded at root c03a741c
    --- dead end where no keyboard or serial console sysreqs are answered ---

    so it must be around ... and I assume it's mp_config_ioapic_for_sci()
    but still have to trace ...

    --- drivers/acpi/bus.c:606 ---
    * Get a separate copy of the FADT for use by other drivers.
    status = acpi_get_table(ACPI_TABLE_FADT, 1, &buffer);
    if (ACPI_FAILURE(status)) {
    printk(KERN_ERR PREFIX "Unable to get the FADT\n");
    goto error1;

    #ifdef CONFIG_X86
    /* Ensure the SCI is set to level-triggered, active-low */
    if (acpi_ioapic)

    status = acpi_enable_subsystem(ACPI_FULL_INITIALIZATION);
    if (ACPI_FAILURE(status)) {
    printk(KERN_ERR PREFIX "Unable to start the ACPI Interpreter\n");
    goto error1;
    --- end ---


    Bjoern A. Zeeb bzeeb at Zabbadoz dot NeT
    56 69 73 69 74

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