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    SubjectRe: bad pmd filemap.c, oops; 2.4.30 and 2.4.32
    >> After a little more than one day up with 2.4.32 SMP+ACP+aic7xxx, I got 
    >> another bad pmd and an oops this morning at 4:23am. I'm going to boot
    >> vanilla 2.4.32 with nosmp and acpi=off.

    Your oops does not make much sense, could you enable following, please:

    CONFIG_DEBUG_KERNEL=y
    CONFIG_DEBUG_SLAB=y
    CONFIG_MAGIC_SYSRQ=y
    CONFIG_FRAME_POINTER=y

    > booting with "nosmp acpi=off" did not help. The box hung as before, at

    Could you boot with pci=noacpi and report again? The difference is that
    ACPI will still be used but not for IRQ routing. I have a few boxes out
    with 2.4.x kernels and Adaptec HBAs that need this to work reliably.

    > hda: TEAC CD-ROM CD-224E, ATAPI CD/DVD-ROM drive
    > ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
    > hda: attached ide-cdrom driver.
    > hda: ATAPI 24X CD-ROM drive, 128kB Cache
    > Uniform CD-ROM driver Revision: 3.12
    > SCSI subsystem driver Revision: 1.00
    > scsi0 : Adaptec AIC7XXX EISA/VLB/PCI SCSI HBA DRIVER, Rev 6.2.36

    What's the SCSI BIOS version?

    > <Adaptec 3960D Ultra160 SCSI adapter>
    > aic7899: Ultra160 Wide Channel A, SCSI Id=7, 32/253 SCBs
    >
    > scsi1 : Adaptec AIC7XXX EISA/VLB/PCI SCSI HBA DRIVER, Rev 6.2.36
    > <Adaptec 3960D Ultra160 SCSI adapter>
    > aic7899: Ultra160 Wide Channel B, SCSI Id=7, 32/253 SCBs
    >
    > scsi2 : Adaptec AIC7XXX EISA/VLB/PCI SCSI HBA DRIVER, Rev 6.2.36
    > <Adaptec aic7899 Ultra160 SCSI adapter>
    > aic7899: Ultra160 Wide Channel B, SCSI Id=7, 32/253 SCBs
    >
    > blk: queue f7e46018, I/O limit 4095Mb (mask 0xffffffff)
    >
    > I waited about 10 minutes to see if it would continue, then booted back
    > into 2.6.14.4.

    What's the diff between /proc/interrupt and lspci -v on those kernels,
    when they've finished the booting sequence?

    If you find time, send me your BIOS settings and your .config in private
    email. I didn't track this thread from the beginning, so I don't know if
    you've already done this.

    It might also help to carry this problem over to the linux-scsi mailing
    list, since, I believe, most SCSI guys don't ready lkml too frequently.

    Of course, if 2.6.x works for you and you need to go productive, then
    I'd switch to it if I was you.

    Just my 2 cents,
    Roberto Nibali, ratz
    --
    echo
    '[q]sa[ln0=aln256%Pln256/snlbx]sb3135071790101768542287578439snlbxq' | dc
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