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Date:	Mon, 24 Nov 2008 10:29:46 -0800
From:	Curt Wohlgemuth <curtw@...gle.com>
To:	Eric Sandeen <sandeen@...hat.com>
Cc:	Arturas K <arturas@...beris.soften.ktu.lt>,
	linux-ext4@...r.kernel.org
Subject: Re: rm: cannot remove `???': No such file or directory

I was thinking the same, but wasn't able to test it first...

Curt

On Mon, Nov 24, 2008 at 10:26 AM, Eric Sandeen <sandeen@...hat.com> wrote:
> Arturas K wrote:
>> hello,
>>
>> I did a simple/dirty benchmark on multiple file systems, and ext4dev
>> encounters some problems recursively removing linux tree... tested with
>> default and multiple altered option sets of mkfs.ext4dev and/or mount
>> options - the same story :(
>>
>> I guess there are locks on files where modification is committed to fs,
>> but not yet flushed to disk or something like this. anyway this behavior
>> is fatal for any temporary file operations...
>
> This might be fixed by the patch that just showed up on the list today :)
>
> --- fwd ---
>
> PATCH ext4: fix to call_filldir
>
> I happened to find a bug running bonnie++-1.03a on an ext4 filesystem,
> when it complained about not being able to remove a file.
>
> Further investigation showed a problem with call_filldir(), which is not
> quite correct with respect to the same function in fs/ext3/dir.c.  The
> patch below fixes this problem.
>
> ---
>
> -Eric
>
>> --- test output ---
>>
>>> ~# ( cd /srv ; time ( tar xf /tmp/linux-2.6.26.tar && sync ) ) && ( cd /srv/linux-2.6.26 ; time ( cat /tmp/patch-2.6.27 | patch -p1 > ./log && sync ) ) && ( cd /srv ; time ( rm -R linux-2.6.26 && sync ) )
>>>
>>> real 0m9.515s
>>> user 0m0.112s
>>> sys  0m1.536s
>>>
>>> real 0m11.752s
>>> user 0m2.680s
>>> sys  0m2.868s
>>> rm: cannot remove `linux-2.6.26/arch/powerpc/include/asm/bug.h': No such file or directory
>>> rm: cannot remove `linux-2.6.26/arch/alpha/include/asm/fb.h': No such file or directory
>>> rm: cannot remove `linux-2.6.26/arch/s390/include/asm/irq_regs.h': No such file or directory
>>> rm: cannot remove `linux-2.6.26/arch/sparc/include/asm/mmu.h': No such file or directory
>>> rm: cannot remove `linux-2.6.26/arch/sparc/include/asm/openprom_32.h': No such file or directory
>>> rm: cannot remove `linux-2.6.26/arch/arm/configs/ateb9200_defconfig': No such file or directory
>>> rm: cannot remove `linux-2.6.26/arch/m68knommu/include/asm/scatterlist.h': No such file or directory
>>> rm: cannot remove `linux-2.6.26/include/asm-um/irq_vectors.h': No such file or directory
>>> rm: cannot remove `linux-2.6.26/include/asm-m68k/virtconvert.h': No such file or directory
>>> rm: cannot remove `linux-2.6.26/include/linux/hrtimer.h': No such file or directory
>>> rm: cannot remove `linux-2.6.26/include/linux/hardirq.h': No such file or directory
>>> rm: cannot remove `linux-2.6.26/include/linux/crc32c.h': No such file or directory
>>>
>>> real 0m0.721s
>>> user 0m0.012s
>>> sys  0m0.708s
>>
>> --- system ---
>>
>> ubuntu 8.10 amd64
>>
>>  > ~# dpkg -l | grep linux-image-2.6.27
>>  > ii  linux-image-2.6.27-7-generic 2.6.27-7.16
>>  > ~# dpkg -l | grep e2fs
>>  > ii  e2fslibs 1.41.3-1ubuntu1
>>  > ii  e2fsprogs 1.41.3-1ubuntu1
>>
>> ---
>> ArturasK.
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