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Date: Mon, 28 Apr 2008 10:59:09 +0300
From: Adrian Hunter <ext-adrian.hunter@nokia.com>
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To: ext Nancy <nancydreaming@gmail.com>
Subject: Re: UBI: badblock management confusion!
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ext Nancy wrote:
>  > > # modprobe ubi mtd=5
>  > > UBI: physical eraseblock size:   262144 bytes (256 KiB)
>  > > UBI: logical eraseblock size:    258048 bytes
>  > > UBI: smallest flash I/O unit:    2048
>  > > UBI: VID header offset:          2048 (aligned 2048)
>  > > UBI: data offset:                4096
>  > > UBI warning: ubi_eba_init_scan: cannot reserve enough PEBs for bad PEB
>  > > handling, reserved 19, need 20
>  > > UBI: attached mtd5 to ubi0
>  > > UBI: MTD device name:            "NAND VFAT partition"
>  > > UBI: MTD device size:            512 MiB
>  > > UBI: number of good PEBs:        2044
>  > > UBI: number of bad PEBs:         4
>  > > UBI: max. allowed volumes:       128
>  > > UBI: wear-leveling threshold:    256
>  > > UBI: number of internal volumes: 1
>  > > UBI: number of user volumes:     1
>  > > UBI: available PEBs:             0
>  > > UBI: total number of reserved PEBs: 2044
>  > > UBI: number of PEBs reserved for bad PEB handling: 19
>  > > UBI: max/mean erase counter: 39/24
>  > > UBI: background thread "ubi_bgt0d" started, PID 263
> 
> pls:
>  > > UBI: available PEBs:             0
>  > > UBI: total number of reserved PEBs: 2044
> Quite wrong displaying messages.
> 
> 

There are no available PEBs so no more volumes can be created.

The number of reserved PEBs includes all existing volumes.