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From: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
To: Henry Bausley <hbausley@domain.hid>
Cc: xenomai@xenomai.org
Subject: Re: [Xenomai-help] ENXIO error with large shared memory
Date: Tue, 17 Mar 2009 19:21:39 +0100	[thread overview]
Message-ID: <49BFEA33.5090803@domain.hid> (raw)
In-Reply-To: <001801c9a734$e0c7ac90$0109220a@domain.hid>

Henry Bausley wrote:
> The patch makes it work for 32M.  However if I try to go larger ie.48M or 
> 64M I get the following

Do you get the same error if you only run a simple program that does
such a big allocation ?

In other words, is it the big allocation by itself which causes this
"badness" or the accumulation of allocations (and possible memory
corruption).

You should be aware that the vmalloc space also has limits. Why do you
need to share such big areas between kernel and user-space ?

-- 
                                                 Gilles.


  reply	other threads:[~2009-03-17 18:21 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-03-16 22:08 [Xenomai-help] ENXIO error with large shared memory Henry Bausley
2009-03-16 21:31 ` Gilles Chanteperdrix
2009-03-17  0:49 ` Henry Bausley
2009-03-17 15:18   ` Gilles Chanteperdrix
2009-03-17 16:08     ` Gilles Chanteperdrix
2009-03-17 19:16       ` Henry Bausley
2009-03-17 18:21         ` Gilles Chanteperdrix [this message]
2009-08-13 23:12           ` Henry Bausley
2009-03-17 18:23         ` Gilles Chanteperdrix

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