linux-kernel - Re: mtdchar kernel oops

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Message-ID: <CAOMZO5BL8bKauB6-srbZCLapHJNAVRqB0g0uw+17_h1wy3_9-g@mail.gmail.com>
Date:	Sun, 15 Apr 2012 11:19:11 -0300
From:	Fabio Estevam <festevam@...il.com>
To:	Joel Reardon <joel@...mbassador.com>
Cc:	Artem Bityutskiy <dedekind1@...il.com>,
	linux-mtd@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: mtdchar kernel oops

On Sun, Apr 15, 2012 at 8:58 AM, Joel Reardon <joel@...mbassador.com> wrote:
> I think that this patch:
> "mtdchar: kill persistently held vfsmount"
> http://permalink.gmane.org/gmane.linux.kernel.commits.head/314175
>
> has started causing kernel oops's when running ubiformat. The oops is
> occuring in fs/namespace.c's mnt_add_count() line:
>        this_cpu_add(mnt->mnt_pcp->mnt_count, n);

I also see kernel oops when running flash_eraseall on a SPI NOR flash.

If this patch is reverted the flash_eraseall operation is successful.
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