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From: Robert E Brose II <bob@kunk.jriver.com>
To: linuxppc-dev@lists.linuxppc.org
Subject: Re: [Dri-devel] PPC Lockup (ati-pcigart-branch)
Date: Tue, 23 Jan 2001 00:49:48 -0600 (CST)	[thread overview]
Message-ID: <20010123064948.1745.qmail@kunk.jriver.com> (raw)


On Mon, 22 Jan 2001, Dan Malek wrote:

>> > .....  I
>> > wonder why planb works at all....
>>
>> Probably because no one stumbles across the memory it is trashing?
>> Currently, bad_thing_will_happen = vmalloc + virt_to_bus + dma.
>> It could be with the right memory size, modulo addressing, memory
>> controller configuration, timing of the vmalloc, it just may
>> accidently work.  If this is the case, I would be out buying
>> lottery tickets........

On Mon, 22 Jan 2001, Takashi Oe wrote:
> Ok, my apologies, planb doesn't use vmalloc at all these days.  So, there
> is no problem of that kind.  (In the beginning, it had vmalloc with a lot
> of problems as I recall now.)


How about the use of vmalloc in the video frame buffer drivers? At
one point I ran into some weird behavior with controlfb (mmap patched),
XFree4.0, planb and Xawtv (the xawtv display froze the machine). I was
not able to duplicate that in X3.3.6

Bob
--
Robert E. Brose II    N0QBJ
http://www.jriver.com/~bob/
bob@jriver.com

** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/

             reply	other threads:[~2001-01-23  6:49 UTC|newest]

Thread overview: 52+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-01-23  6:49 Robert E Brose II [this message]
2001-01-23  7:01 ` [Dri-devel] PPC Lockup (ati-pcigart-branch) Geert Uytterhoeven
  -- strict thread matches above, loose matches on Subject: below --
2001-01-23  3:34 Iain Sandoe
2001-01-19  3:26 Michel Dänzer
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
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

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