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    From
    Subjectsoftraid5 bug on ALL 2.4 kernels
    Date
    2.4test10 - mke2fs work fine, but dd if=/dev/zero of=/mnt/testfile
    count=2000000 gor kernel error
    2.4test11 - mke2fs result kernel error immideatly.
    2.4test12 - mke2fs result kernel error immideatly.

    kernels- SMP&UP with apic (SCSI drivers don't work good without enabled APIC
    on SMP motherboard in UP kernel)

    Mother Intel GX
    2xPIII-850
    1Gb and 2Gb
    Adaptec 7860 SCSI (but on IDE soft RAID got the same error)

    raid1 work fine.

    dmesg:

    disk 25, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00]
    disk 26, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00]
    md: updating md0 RAID superblock on device
    hdd [events: 00000001](write) hdd's sb offset: 45034816
    md: syncing RAID array md0
    md: minimum _guaranteed_ reconstruction speed: 100 KB/sec/disc.
    md: using maximum available idle IO bandwith (but not more than 100000
    KB/sec) for reconstruction.
    md: using 124k window, over a total of 45034816 blocks.
    hdc [events: 00000001](write) hdc's sb offset: 45034816
    hda [events: 00000001](write) hda's sb offset: 45034816
    .
    kernel BUG at buffer.c:765!
    invalid operand: 0000
    CPU: 0
    EIP: 0010:[<c012d852>]
    EFLAGS: 00010286
    eax: 0000001c ebx: f7f89d08 ecx: c027c508 edx: 00000001
    esi: f6f04160 edi: f6f04000 ebp: f7f89cc0 esp: f7001e8c
    ds: 0018 es: 0018 ss: 0018
    Process raid5d (pid: 284, stackpage=f7001000)
    Stack: c022ad45 c022affa 000002fd 00000004 c01d9788 f7f89cc0 00000001
    00000004
    f6f04000 00000001 00000000 c01da299 f6f04000 00000001 00000001
    f6f04000
    f7003000 f6f04000 00000003 00000003 f7003000 c01dadf2 f6f04000
    f6f04000
    Call Trace: [<c022ad45>] [<c022affa>] [<c01d9788>] [<c01da299>] [<c01dadf2>]
    [<c010a92e>] [<c010a94c>]
    [<c01149b6>] [<c01db326>] [<c01e2046>] [<c0107c34>]
    Code: 0f 0b 83 c4 0c 5b c3 8d 76 00 55 57 56 53 8b 74 24 14 8b 54

    Max Shaposhnikov,
    SpyLog UNIX administrator (www.spylog.ru)

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