From mboxrd@z Thu Jan  1 00:00:00 1970
From: Philippe Gerum <rpm@xenomai.org>
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Date: Thu, 28 May 2009 18:39:58 +0200
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Subject: Re: [Xenomai-help] Running out of stack memory in kernel-space
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To: Andreas Glatz <andreasglatz@domain.hid>
Cc: xenomai@xenomai.org

On Thu, 2009-05-28 at 11:59 -0400, Andreas Glatz wrote:
> Hi,
> 
> We have to start 40+ Xenomai tasks in kernel space.
> We want to allocate at least 4kbyte of stack memory
> for each of them. So we need the stack heap size 
> to be more than 160kbyte. 
> 
> In the documentation it says that the total 
> stack heap size cannot be more than 128kbyte
> (the limit of kmalloc).

Could you point me at that doc? TIA,

> 
> Now my idea is to modify the Xenomai code to have 
> more than one stack heaps. So when I'm running out
> of space in one heap I can switch to the next heap...
> 
> Is there an easier way to increase the max. stack heap size?
> 

See CONFIG_XENO_OPT_SYS_STACKPOOLSZ, nucleus configuration menu.

> Best regards, 
> Andreas 
> 
> 
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-- 
Philippe.