Anton Altaparmakov [Tue, Jul 30, 2002 at 05:28:05PM +0100]:
> At 18:57 31/07/02, Nico Schottelius wrote:
> >Just wanted to report of the following problems:
> >
> >Other bugs:
> >- ntfs sometimes crashes the system: working on a loopback file caused
> > ntfs to report corruptions in the file system and this hangs system
> > completly.
> >
> >If you need more informations, just tell me. Currently I've some time
> >to debug parts of the kernel.
>
> I am interested in this ntfs report. Which way round was the loopback file?
> I.e. did you mount: mount -t ntfs -o loop somefile_on_a_non_ntfs_partition
> or did you mount: mount -t some_file_system -o loop
> somefile_on_an_ntfs_partion?
mount -t ntfs -o loop file.sav-on-ext2-or-on-xfs[when using 2.4.18] /mnt
> Can you send me the errors produced? If there is an oops, please decode and
> send it, too.
The test I did was the following [may I call that test ?]:
cd /mnt; mkdir /ntfs_on_ext3; cp -r * /ntfs_on_ext3
While copying, with or without debug, the system hangs, but top only reports
7 % cpu load.
Copying the files results in a input / output error.
It has never been an oops and actually 2.5.29 does _not_ hangup anymore!
Still it stops to copy the files and aborts.
I am currently retrying with debug enabled...
> Also it may be useful to have the debug output from ntfs (depending on what
> the errors/oops say - they may be sufficient to pinpoint the problem), i.e.
> enable debugging when configuring the kernel, and then as root do: echo 1 >
> /proc/sys/fs/ntfs-debug. Note this will absolutely flood you with debug
> output so the system will run slow as hell... So it is best to only enable
> debug messages just before the error occurs if that is possible.
oops. forget that above. Oh yes, ntfs is really reporting much.
You can find the output at ftp.schottelius.org:/pub/tmp, it's about
600k compressed.
I am really happy that this time the cp did not hald my system!
Nico
p.s.: what was the maximal file size on ext3 ? I just gunzipped a 4gb
file (the ntfs image the whole story is about), which could not
be transfered through scp/ftp in this size...
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