From: Michel Dänzer <daenzer@relog.ch>
To: Roman Zippel <zippel@fh-brandenburg.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Jeff Hartmann <jhartmann@valinux.com>,
Gareth Hughes <gareth@valinux.com>,
linuxppc-dev@lists.linuxppc.org, dri-devel@lists.sourceforge.net,
Paul Mackerras <paulus@linuxcare.com>
Subject: Re: [Dri-devel] PPC Lockup (ati-pcigart-branch)
Date: Mon, 22 Jan 2001 19:18:24 +0100 [thread overview]
Message-ID: <3A6C7970.2E3E88CA@relog.ch> (raw)
In-Reply-To: Pine.GSO.4.10.10101221854100.18061-100000@zeus.fh-brandenburg.de
Roman Zippel wrote:
> > > [drm] drm_sg_alloc
> > > i: ca292000
> > > pgd: c014dca0
> > > pmd: c014dca0
> > > pte: 00000a48
> > > Oops: kernel access of bad area, sig: 11
> >
> > Looking at pgd/pmd, pte seems fishy for a pointer. Any reason why this
> > code shouldn't work on PPC?
>
> There is no pte table and so there is nothing mapped at that address, you
> can use (pgd|pmd|pte)_present() to test for that.
You are saying we should use *_present() to check each of these before using
*_offset to get the pointer? And what if *_present() is false?
Michel
--
Earthling Michel Dänzer (MrCooper) \ Debian GNU/Linux (powerpc) developer
CS student, Free Software enthusiast \ XFree86 and DRI project member
** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/
next prev parent reply other threads:[~2001-01-22 18:18 UTC|newest]
Thread overview: 58+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-01-19 3:26 PPC Lockup (ati-pcigart-branch) Michel Dänzer
2001-01-19 3:55 ` Dan Malek
2001-01-19 6:53 ` [Dri-devel] " Gareth Hughes
2001-01-19 16:48 ` Jeff Hartmann
2001-01-19 17:24 ` Dan Malek
2001-01-20 0:45 ` Gareth Hughes
2001-01-19 16:40 ` [Dri-devel] " Jeff Hartmann
2001-01-19 17:11 ` Benjamin Herrenschmidt
2001-01-19 22:26 ` Chris Emerson
2001-01-19 22:59 ` Benjamin Herrenschmidt
2001-01-19 23:43 ` Chris Emerson
2001-01-20 1:38 ` Benjamin Herrenschmidt
2001-01-20 13:21 ` Michael Schmitz
2001-01-20 16:00 ` Benjamin Herrenschmidt
2001-01-20 17:03 ` Michael Schmitz
2001-01-20 2:46 ` Michel Dänzer
2001-01-20 4:17 ` Michel Dänzer
2001-01-22 9:44 ` Michel Dänzer
2001-01-22 17:59 ` Roman Zippel
2001-01-22 18:18 ` Michel Dänzer [this message]
2001-01-22 18:54 ` Roman Zippel
2001-01-22 19:39 ` Dan Malek
2001-01-22 20:08 ` Michel Dänzer
2001-01-22 20:30 ` Jeff Hartmann
2001-01-22 21:23 ` Roman Zippel
2001-01-22 23:12 ` Frank Rowand
2001-01-22 21:31 ` Dan Malek
2001-01-22 21:48 ` Jeff Hartmann
2001-01-22 22:15 ` Roman Zippel
2001-01-23 16:14 ` Mike Beede
2001-01-22 22:31 ` Roman Zippel
2001-01-23 0:24 ` Dan Malek
2001-01-23 2:28 ` Takashi Oe
2001-01-23 2:40 ` Dan Malek
2001-01-23 4:40 ` Ralph Metzler
2001-01-23 5:48 ` Takashi Oe
2001-01-23 11:24 ` Roman Zippel
2001-01-23 0:34 ` Frank Rowand
2001-01-23 0:43 ` Frank Rowand
2001-01-23 11:32 ` Roman Zippel
2001-01-22 20:43 ` Roman Zippel
2001-01-22 21:07 ` Jeff Hartmann
2001-01-22 17:33 ` Dan Malek
2001-01-22 17:38 ` Jeff Hartmann
2001-01-22 17:38 ` Gareth Hughes
2001-01-22 17:43 ` Michel Dänzer
2001-01-22 18:36 ` Dan Malek
2001-01-22 18:44 ` Jeff Hartmann
2001-01-22 18:47 ` Michel Dänzer
2001-01-22 21:13 ` Dan Malek
2001-01-22 21:58 ` Roman Zippel
2001-01-22 23:48 ` Paul Mackerras
2001-01-23 0:13 ` Dan Malek
2001-01-20 13:15 ` Michael Schmitz
2001-01-19 17:11 ` Wolfgang Denk
-- strict thread matches above, loose matches on Subject: below --
2001-01-23 3:34 Iain Sandoe
2001-01-23 6:49 Robert E Brose II
2001-01-23 7:01 ` Geert Uytterhoeven
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