From: David Wagner <david.wagner@free-electrons.com>
To: Gilles <gilles.ganault@free.fr>
Cc: linux-mtd@lists.infradead.org
Subject: Re: [Ubiattach] "vtbl_check: too large reserved_pebs"
Date: Thu, 09 Jun 2011 17:50:57 +0200 [thread overview]
Message-ID: <4DF0EBE1.9000903@free-electrons.com> (raw)
In-Reply-To: <e2p1v6tlj2gka1lq4q2bd0mk5al776ivms@4ax.com>
>> Oops, sorry, the formula is
>> ((Subpage_size + Page_size)) / Page_size) * Page_size
>> That is, subpage+page truncated to page.
>
> Thanks, but I must have misunderstood the formula, as I find the same
> number:
>
> PEB_size - ((Subpage_size + Page_size)) / Page_size) * Page_size =
> LEB_size
>
> 131.072 - ((512 + 2048 ) / 2048) * 2048) = 128.512
I should have mentionned that every sub-result has to be considered an
integer, here, sorry.
512+2048 = 2560
2560 / 2048 = 1 // That's where it is important that the result be
// an integer.
1 * 2048 = 2048
131072 - 2048 = 129024
Regards,
--
David Wagner, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com
next prev parent reply other threads:[~2011-06-09 15:48 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-06-09 10:24 [Ubiattach] "vtbl_check: too large reserved_pebs" Gilles
2011-06-09 12:20 ` Artem Bityutskiy
2011-06-09 12:31 ` Gilles
2011-06-09 12:38 ` Artem Bityutskiy
2011-06-09 15:18 ` Gilles
2011-06-10 4:03 ` Artem Bityutskiy
2011-06-10 9:25 ` Gilles
[not found] ` <4DF0B36E.2020605@free-electrons.com>
[not found] ` <7.0.1.0.2.20110609135430.06967d28@free.fr>
2011-06-09 12:42 ` David Wagner
2011-06-09 15:19 ` Gilles
2011-06-09 15:50 ` David Wagner [this message]
2011-06-09 15:51 ` Artem Bityutskiy
2011-06-09 16:15 ` Gilles
2011-06-09 16:17 ` Gilles
2011-06-09 23:05 ` Gilles
2011-06-10 0:45 ` Gilles
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