From: Darius Augulis <augulis.darius@gmail.com>
To: massimo cirillo <maxcir@gmail.com>
Cc: linux-mtd@lists.infradead.org
Subject: Re: [PATCH] Fixup for Numonyx M29W128 chips
Date: Thu, 26 Mar 2009 14:54:02 +0200 [thread overview]
Message-ID: <49CB7AEA.2000009@gmail.com> (raw)
In-Reply-To: <62cbdcd90903260402q61725160v7f1538762fbd76bc@mail.gmail.com>
Hi,
I'm getting jffs2 errors after write to flash. I don't have the output
log now, but the idea is that after write to flash, jffs2 does not find
magic numbers anymore. File system is broken.
It's completely resolved when write buffers are not used. I could make
patch which disables write buffer only for M29W128 chips. Anyway it's
not working, one who needs more performace, is welcome to fix this in
better way...
Darius.
massimo cirillo wrote:
> Hi Darius,
> what kind of failure did you experiment with M29W?
>
> In my opinion, complete removal of the buffer program feature is not a
> good solution,
> because you are taking away an important feature of the device, that results in
> a very high performance decrease.
>
> Moreover, if you make the fix applicable to all devices with 0x227E device ID,
> you are removing the same feature from other devices too, such as M29EW
> that has a much bigger buffer thus resulting in a dramatic performance decrease
> for this device.
>
>
next prev parent reply other threads:[~2009-03-26 12:56 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-03-26 11:02 [PATCH] Fixup for Numonyx M29W128 chips massimo cirillo
2009-03-26 12:54 ` Darius Augulis [this message]
2009-03-30 12:56 ` massimo cirillo
2009-04-01 7:35 ` Darius Augulis
2009-04-13 18:52 ` Richard Retanubun
2009-04-14 18:02 ` Darius Augulis
-- strict thread matches above, loose matches on Subject: below --
2009-03-25 9:23 Darius Augulis
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