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Date: Sat, 08 Sep 2012 10:10:54 +0200
From: Sasha Levin <levinsasha928@gmail.com>
MIME-Version: 1.0
Subject: Re: mtd: kernel BUG at arch/x86/mm/pat.c:279!
References: <1340959739.2936.28.camel@lappy> <CA+1xoqdgKV_sEWvUbuxagL9JEc39ZFa6X9-acP7j-M7wvW6qbQ@mail.gmail.com> <CA+55aFzJCLxVP+WYJM-gq=aXx5gmdgwC7=_Gr2Tooj8q+Dz4dw@mail.gmail.com> <1347057778.26695.68.camel@sbsiddha-desk.sc.intel.com> <CA+55aFwW9Q+DM2gZy7r3JQJbrbMNR6sN+jewc2CY0i1wD_X=Tw@mail.gmail.com>
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To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Suresh Siddha <suresh.b.siddha@intel.com>, Andrew Morton <akpm@linux-foundation.org>, dwmw2@infradead.org, "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>, linux-mtd@lists.infradead.org, linux-mm <linux-mm@kvack.org>, Dave Jones <davej@redhat.com>

On 09/08/2012 01:09 AM, Linus Torvalds wrote:
> Sasha, since you can apparently reproduce it, can you replace the
> "BUG_ON()" with just a
> 
>  if (start >= end) {
>     printf("bogus range %llx - %llx\n", start, end);
>     return -EINVAL;
>   }

Replacing it gives me the following:

[   36.231736] bogus range fffffffffffff000 - 0


Thanks,
Sasha

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