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Old 11-22-2008, 12:17 PM
Moritz Muehlenhoff
 
Default Bug#417121: can you reproduce with a later kernel?

On Thu, May 31, 2007 at 12:55:41PM +0200, Subhashis Roy wrote:
> Hi,
>
> I do find similar problem with the latest 2.6.21.3 (i686 image) kernel in Sid.
>
> What is peculiar is that the kernel tries to access the card both as
> '/dev/sda' and '/dev/sdb' simultaneously, as the 'dmesg' shows. 'udev'
> does create '/dev/sda1', but access to '/dev/sdb' throws a bunch of
> Error messages with the final one being 'failure to read the partition
> table' (this is probably expected as the card is already accessed as
> '/dev/sda').
> I can mount the card and copy an image file from hard disk successfully
> to it (can be viewed in the camera LCD screen). Successive mounting of
> the card in the laptop (Acer Aspire 1524) shows 'md5sum' of
> that file to be different than the original file. Displaying it in the
> machine also fails. However, I noticed that the actual file on the card
> remained fine (viewable on the camera LCD). Therefore, it appears
> that the problem is in 'reading' the contents of the card (the way
> kernel access the card seems incorrect).
>
> I checked the same behaviour with the earlier 2.6.18 kernel in Etch.

Does this error still occur with more recent kernel versions?

If you're running Etch, could you try to reproduce this bug
with the 2.6.24 based kernel added in 4.0r4?
http://packages.qa.debian.org/l/linux-2.6.24.html

Cheers,
Moritz



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Old 02-07-2009, 01:30 PM
Moritz Muehlenhoff
 
Default Bug#417121: can you reproduce with a later kernel?

On Sat, Nov 22, 2008 at 02:17:34PM +0100, Moritz Muehlenhoff wrote:
> On Thu, May 31, 2007 at 12:55:41PM +0200, Subhashis Roy wrote:
> > Hi,
> >
> > I do find similar problem with the latest 2.6.21.3 (i686 image) kernel in Sid.
> >
> > What is peculiar is that the kernel tries to access the card both as
> > '/dev/sda' and '/dev/sdb' simultaneously, as the 'dmesg' shows. 'udev'
> > does create '/dev/sda1', but access to '/dev/sdb' throws a bunch of
> > Error messages with the final one being 'failure to read the partition
> > table' (this is probably expected as the card is already accessed as
> > '/dev/sda').
> > I can mount the card and copy an image file from hard disk successfully
> > to it (can be viewed in the camera LCD screen). Successive mounting of
> > the card in the laptop (Acer Aspire 1524) shows 'md5sum' of
> > that file to be different than the original file. Displaying it in the
> > machine also fails. However, I noticed that the actual file on the card
> > remained fine (viewable on the camera LCD). Therefore, it appears
> > that the problem is in 'reading' the contents of the card (the way
> > kernel access the card seems incorrect).
> >
> > I checked the same behaviour with the earlier 2.6.18 kernel in Etch.
>
> Does this error still occur with more recent kernel versions?
>
> If you're running Etch, could you try to reproduce this bug
> with the 2.6.24 based kernel added in 4.0r4?
> http://packages.qa.debian.org/l/linux-2.6.24.html

Have you been able to reproduce the problem with more recent kernel
versions?

Cheers,
Moritz



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