From: Artem Bityutskiy <dedekind1@gmail.com>
To: Tadashi Abe <tabe@mvista.com>
Cc: dwmw2@infradead.org, linux-mtd@lists.infradead.org
Subject: Re: mtd: fix hang-up in cfi erase and read contention
Date: Fri, 20 May 2011 09:01:27 +0300 [thread overview]
Message-ID: <1305871287.2630.98.camel@localhost> (raw)
In-Reply-To: <4DD4BF87.6030107@mvista.com>
On Thu, 2011-05-19 at 15:58 +0900, Tadashi Abe wrote:
> cfi erase command hangs up when erase and read contention occurs.
> If read runs at the same address as erase operation, read issues
> Erase-Suspend via get_chip() and the erase goes into sleep in wait queue.
> But in this case, read operation exits by time-out without waking it up.
>
> I think the other variants (0001, 0020 and lpddr) have the same problem too.
> Tested and verified the patch only on CFI-0002 flash, though.
>
> Signed-off-by: Tadashi Abe <tabe@mvista.com>
Pushed both cfi patches to l2-mtd-2.6.git, thanks.
--
Best Regards,
Artem Bityutskiy (Артём Битюцкий)
next prev parent reply other threads:[~2011-05-20 6:05 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-19 6:58 mtd: fix hang-up in cfi erase and read contention Tadashi Abe
2011-05-19 16:34 ` Joakim Tjernlund
2011-05-20 6:01 ` Artem Bityutskiy [this message]
2011-05-25 1:08 ` David Woodhouse
2011-05-25 1:11 ` David Woodhouse
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