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    SubjectRe: [Fdutils] DMA cache consistency bug introduced in 2.6.28 (Was: Re: Cannot format floppies under kernel 2.6.*?)
    On 12/18/2009 03:59 AM, Mark Hounschell wrote:
    > On 12/17/2009 06:24 PM, Alain Knaff wrote:
    >
    >>
    >> Now, I only need to find a machine locally to test this on. Or Mark: are
    >> you confident in doing this yourself?
    >>
    >
    > I'll give it a shot. Sounds easy enough. If I have problems, I'll yell.
    >

    Ok, I ran into a build issue on the third on.

    #harley:/usr/src # git clone
    git://git.kernel.org/pub/scm/linux/kernel/git/hpa/linux-2.6-allstable.git
    Initialized empty Git repository in /usr/src/linux-2.6-allstable/.git/
    remote: Counting objects: 1486248, done.
    remote: Compressing objects: 100% (248092/248092), done.
    Receiving objects: 100% (1486248/1486248), 323.35 MiB | 6753 KiB/s, done.
    remote: Total 1486248 (delta 1236282), reused 1476516 (delta 1227133)
    Resolving deltas: 100% (1236282/1236282), done.
    Checking out files: 100% (31502/31502), done.


    harley:/usr/src # cd linux-2.6-allstable
    harley:/usr/src/linux-2.6-allstable # git bisect start
    harley:/usr/src/linux-2.6-allstable # git bisect bad v2.6.28
    harley:/usr/src/linux-2.6-allstable # git bisect good v2.6.27.41
    Bisecting: a merge base must be tested
    [3fa8749e584b55f1180411ab1b51117190bac1e5] Linux 2.6.27

    Build and test kernel: This one worked so:

    harley:/usr/src/linux-2.6-allstable # git bisect good
    Bisecting: 4879 revisions left to test after this (roughly 12 steps)
    [c813b4e16ead3c3df98ac84419d4df2adf33fe01] Merge
    git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6

    Build and test kernel: This one worked so:

    harley:/usr/src/linux-2.6-allstable # git bisect good
    Bisecting: 2443 revisions left to test after this (roughly 11 steps)
    [db563fc2e80534f98c7f9121a6f7dfe41f177a79] Merge
    git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6

    This one doesn't build:

    CC [M] fs/ext3/super.o
    fs/ext3/super.c: In function ‘ext3_quota_on’:
    fs/ext3/super.c:2839: error: ‘nd’ undeclared (first use in this function)
    fs/ext3/super.c:2839: error: (Each undeclared identifier is reported only once
    fs/ext3/super.c:2839: error: for each function it appears in.)
    make[2]: *** [fs/ext3/super.o] Error 1
    make[1]: *** [fs/ext3] Error 2
    make: *** [fs] Error 2

    I haven't yet determined that I can but, if I were to make a modification to the
    tree now to fix this would that screw up the bisect process?

    Regards
    Mark

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