linux-kernel - Re: [sbc_gxx] kernel BUG at include/linux/mtd/map.h:148!

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Date:	Thu, 7 Aug 2014 15:46:18 -0700
From:	Brian Norris <computersforpeace@...il.com>
To:	Nick Krause <xerofoify@...il.com>
Cc:	Fengguang Wu <fengguang.wu@...el.com>,
	Yuanhan Liu <yuanhan.liu@...el.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	dri-devel@...ts.freedesktop.org, Su Tao <tao.su@...el.com>,
	"linux-mtd@...ts.infradead.org" <linux-mtd@...ts.infradead.org>,
	LKP <lkp@...org>, Jet Chen <jet.chen@...el.com>
Subject: Re: [sbc_gxx] kernel BUG at include/linux/mtd/map.h:148!

Hi,

On Tue, Aug 05, 2014 at 08:08:57PM -0400, Nick Krause wrote:
> On Tue, Aug 5, 2014 at 9:59 AM, Fengguang Wu <fengguang.wu@...el.com> wrote:
> > Hello,
> >
> > This is an old BUG that still lives in linux-next.
> >
> > [    4.284620] device id = 2670
> > [    4.286157] SBC-GXx flash: IO:0x258-0x259 MEM:0xdc000-0xdffff
> > [    4.287060] ------------[ cut here ]------------
> > [    4.287722] kernel BUG at include/linux/mtd/map.h:148!
> > [    4.288048] invalid opcode: 0000 [#1] PREEMPT SMP
>
> I am new , here and will try to trace your issue on linus's tree
> unless there is a major difference between Linus's tree and
> linux-next.
> If there is please let me known before I start tracing this.

This is a known issue, and Fengguang has reported this before:

  http://lists.infradead.org/pipermail/linux-mtd/2014-March/053019.html

I'm still not quite sure how to solve this one. It seems to be a
limitation of the kconfig language.

Brian
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