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    SubjectPROBLEM: raid assembly on 2.4.0-2.4.1-pre9 fails

    [1.] One line summary of the problem:

    cannot assemble md devices under 2.4.x, x=0,1-pre7,1-pre9

    [2.] Full description of the problem/report:

    System: API UP2000 motherboard, running generic 2.4.0 to 2.4.1-pre9
    kernel.

    kernel .config file can be
    found: http://userpages.umbc.edu/~jjasen1/config.241-p7.txt

    error messages: <summarised> can be found:

    http://userpages.umbc.edu/~jjasen1/boot-2.4.0-errs.txt and
    boot-2.4.1-p7-errs.txt

    [3.] Keywords:
    kernel, filesystem, raid, alpha

    [4.] Kernel version:

    2.4.0, 2.4.1-pre7, 2.4.1-pre9

    [5.] Output of Oops.. message (if applicable) with symbolic information
    resolved (see Documentation/oops-tracing.txt)
    No Oops

    [6.] A small shell script or example program which triggers the
    problem (if possible)
    none

    [7.] Environment
    [7.1.] Software (add the output of the ver_linux script here)
    -- Versions installed: (if some fields are empty or looks
    -- unusual then possibly you have very old versions)

    version of kernel is incorrect to report problem. System cannot mount
    drives under 2.4.0

    Linux sneaky 2.2.17-RAID-IDE-NFS #5 Tue Nov 7 18:18:22 EST 2000 alpha
    unknown
    Kernel modules 2.3.19
    Gnu C egcs-2.91.66
    Gnu Make 3.78.1
    Binutils 2.9.5.0.22
    Linux C Library 2.1.3
    Dynamic linker ldd (GNU libc) 2.1.3
    Procps 2.0.6
    Mount 2.10m
    Net-tools 1.54
    Console-tools 0.3.3
    Sh-utils 2.0
    Modules Loaded lockd sunrpc de4x5 st

    [7.2] CPU Info:
    [root@sneaky /root]# more /proc/cpuinfo
    cpu : Alpha
    cpu model : EV67
    cpu variation : 7
    cpu revision : 0
    cpu serial number :
    system type : Nautilus
    system variation : 0
    system revision : 0
    system serial number :
    cycle frequency [Hz] : 598802395
    timer frequency [Hz] : 1024.00
    page size [bytes] : 8192
    phys. address bits : 44
    max. addr. space # : 255
    BogoMIPS : 1191.18
    kernel unaligned acc : 0 (pc=0,va=0)
    user unaligned acc : 0 (pc=0,va=0)
    platform string : SEC UP1100 598 MHz
    cpus detected : 1

    [7.5]

    [root@sneaky /root]# more /proc/mdstat
    Personalities : [linear] [raid0] [raid1] [raid5]
    read_ahead 1024 sectors
    md0 : active raid5 hdd1[2] hdc1[1] hdb1[0] hda1[3] 1060096 blocks level 5,
    32k c
    hunk, algorithm 2 [3/3] [UUU]
    md1 : active raid5 hdd3[2] hdc3[1] hdb3[0] hda3[3] 4208896 blocks level 5,
    32k c
    hunk, algorithm 2 [3/3] [UUU]
    md2 : active raid5 hdd5[2] hdc5[1] hdb5[0] hda5[3] 4208768 blocks level 5,
    32k c
    hunk, algorithm 2 [3/3] [UUU]
    md3 : active raid5 hdd6[2] hdc6[1] hdb6[0] hda6[3] 4208768 blocks level 5,
    32k c
    hunk, algorithm 2 [3/3] [UUU]
    md4 : active raid5 hdd7[2] hdc7[1] hdb7[0] hda7[3] 1060096 blocks level 5,
    32k c
    hunk, algorithm 2 [3/3] [UUU]
    unused devices: <none>

    cat /etc/raidtab:

    [root@sneaky /root]# more /etc/raidtab
    raiddev /dev/md0
    raid-level 5
    nr-raid-disks 3
    nr-spare-disks 1
    persistent-superblock 1
    parity-algorithm left-symmetric
    chunk-size 32

    device /dev/hdb1
    raid-disk 0
    device /dev/hdc1
    raid-disk 1
    device /dev/hdd1
    raid-disk 2
    device /dev/hda1
    spare-disk 0

    raiddev /dev/md1
    raid-level 5
    nr-raid-disks 3
    nr-spare-disks 1
    persistent-superblock 1
    parity-algorithm left-symmetric
    chunk-size 32

    device /dev/hdb3
    raid-disk 0
    device /dev/hdc3
    raid-disk 1
    device /dev/hdd3
    raid-disk 2
    device /dev/hda3
    spare-disk 0

    ... and so forth.

    [8.]

    I seem to recall seeing an error just like this in the archives, under
    -test5 or somesuch, but of course, can't find it now.

    -- John Jasen




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