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From: "Kevin D. Kissell" <kevink@paralogos.com>
To: Manuel Lauss <mano@roarinelk.homelinux.net>
Cc: Ralf Baechle <ralf@linux-mips.org>,
	Linux-MIPS <linux-mips@linux-mips.org>
Subject: Re: oops in futex_init()
Date: Thu, 30 Apr 2009 13:14:46 +0200	[thread overview]
Message-ID: <49F98826.3030708@paralogos.com> (raw)
In-Reply-To: <20090430104130.GA1878@roarinelk.homelinux.net>

Manuel Lauss wrote:
> Hi,
>
> This is really embarrassing:  The oops is what happens when you
> ioremap(0x10) and write 0xffffffff at the resulting address (0xa0000010).
>   
This pretty much implies that _CACHE_UNCACHED was passed in the flags
value to ioremap, so it simply returned the kseg1 address.  By any
chance is physical page zero also referenced somewhere as cacheable?

          Kevin K.

  reply	other threads:[~2009-04-30 11:14 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-04-28 12:46 oops in futex_init() Manuel Lauss
2009-04-28 12:46 ` Manuel Lauss
2009-04-29  6:03 ` Ralf Baechle
2009-04-29  8:25   ` Manuel Lauss
2009-04-29  8:33     ` Ralf Baechle
2009-04-29 11:40       ` Manuel Lauss
2009-04-29 14:14         ` Manuel Lauss
2009-04-29 14:20           ` Kevin D. Kissell
2009-04-29 14:35           ` Ralf Baechle
2009-04-29 15:32             ` Manuel Lauss
2009-04-30 10:41               ` Manuel Lauss
2009-04-30 11:14                 ` Kevin D. Kissell [this message]
2009-04-30 11:22                   ` Manuel Lauss
2009-04-30 11:51                     ` Ralf Baechle
2009-04-30 11:23                 ` Ralf Baechle

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