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    SubjectRe: EXT4 ENOSPC Bug
    Date
    Hi Ted,

    Very Strange:
    I booted (after an crash which I did not see) a somewhat older kernel and I
    once more caught the issue. Unfortunately I do not have your patch in this
    older kernel.


    older kernel: 2.6.28-rc5-andres-00070-g4e14e83
    kernel I rean whole last week: 2.6.28-rc6-andres-00007-ged31348
    There seem to have been no significant ext4 related changes to the kernel
    between those.

    for i in `seq 1 1000`;do touch tmp$i;done
    touch: cannot touch `tmp139': No space left on device
    ...

    rm tmp*;for i in `seq 1 200`;do dd if=/dev/zero of=tmp$i bs=1024k count=1;done
    dd: opening `tmp139': No space left on device
    139
    ..

    Various different blocksizes and filesizes all return the same result.

    This all hints to the patch Anesh linked. But it is included in 2.6.28-rc5.
    Any idea how that could happen?

    The kernel install is just a "make;make install; update-initramfs -c -k `make
    kernelrelease`; update-grub" run...

    A short idea how I could verify on binary level what kernelrelease it really
    is?


    If a somehow corrupted compile (murked ccache?) is the culprit of this (in
    addition to my inaccuracies) I am very sorry for all your work.

    I let this kernel run for the next hours if you want to run some tests...

    Thanks,

    Andres


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