BLKRRPART bug in NFTL?

[Alexandru Harsanyi]

I'm not sure about that, but I think DOC should be formated/partitioned
with nftl_format, not *fdisk.

Best Regards,
Alex.

ASA wrote:
> 
> Hello all,
> 
> tried anybody to use *fdisk on DiskOnChip2000 from ramdisk
> and got expected results?
> 
> I'm automating linux installation, so such thing is needed...
> 
> My system consists of:
> hardware:
>   special embedded motherboard with AMD 486DX4-100
>   8 MB RAM
>   DiskOnChip 2000 (8 MB flash)
> software:
>   linux kernel 2.4.1 with MTD 20010730 snapshot
>   root filesystem on /dev/ram0 (loaded via cmdline: initrd=inird.gz root=/dev/ram0)
> 
> All is based on debian potato (2.2; glibc 2.1; some utils, including
>   sfdisk, are upgraded in order to proper work with 2.4 kernel)
> 
> Symptoms are:
> after executing
> 
>   #deleting any partition for sanity
>   dd if=/dev/zero of=/dev/nftla bs=512 count=1
>   # BLKRRPART ioctl (reread partition information)
>   sfdisk -R /dev/nftla
> 
>   # making 5 and 3 megs partitions on 8 MiB DOC
>   echo ",5000,L,*;,,L;;" | sfdisk -f /dev/nftla
> 
>   # make sure partition information is reread
>   sfdisk -R /dev/nftla
> 
> the root filesystem (ramdisk) is screwed up!
> 
> again, after clean reboot only invoking
> BLKRRPART ioctl is enough to break ramdisk
> 
> in the same configuration, operating with hard disks instead of DOC
> is absolutely .
> 
> Also, to reproduce this bug in other environment (only the kernel is
> the same) I tried to put my kernel (2.4.1+MTD-20010730) on the debian
> installation diskette and after using cfdisk ramdisk was screwed again...
> 
> --
> Best regards,
>  ASA                            mailto:atris at mail.ru
> 
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