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Date: Fri, 09 Jan 2015 18:34:35 -0300 From: Ezequiel Garcia <ezequiel@...guardiasur.com.ar> To: Richard Weinberger <richard@....at>, dedekind1@...il.com CC: linux-mtd@...ts.infradead.org, linux-kernel@...r.kernel.org Subject: Re: [PATCH 1/6] UBI: Fastmap: Care about the protection queue On 01/09/2015 06:31 PM, Richard Weinberger wrote: > Am 09.01.2015 um 22:23 schrieb Ezequiel Garcia: >> On 11/24/2014 10:20 AM, Richard Weinberger wrote: >>> Fastmap can miss a PEB if it is in the protection queue >>> and not jet in the used tree. >> >> s/jet/yet >> >>> Treat every protected PEB as used. >>> >> >> I'm wondering if we can have a detailed description of the issues this >> commit fixes (if any?). In other words, what's the result of *not* >> having the patch? > > Without this patch fastmap can miss one PEB. > As consequence of this during attach the fastmap self-check > will detect this inconsistency and will fall back to a full scan. > If you try to attach using a custom fastmap implementation (found in > bootloaders) which do often not have sophisticated self-checks you'll > face a serious data corruption or if you're lucky UBI will crash. > > Now clearer? :-) > Much better! Thanks a lot, -- Ezequiel Garcia, VanguardiaSur www.vanguardiasur.com.ar -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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