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Date: Mon, 23 Jun 2008 18:40:39 +0200
From: Philippe Gerum <rpm@xenomai.org>
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Subject: Re: [Xenomai-help] xenomai scheduler's ticks period
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To: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
Cc: xenomai-help <xenomai@xenomai.org>

Gilles Chanteperdrix wrote:
> Philippe Gerum wrote:
>> Matthieu wrote:
>>
>>> I have a segmentation fault error when I use modprobe xeno_vxworks
>>> tick_arg=0 (tick_arg=1000 works)
>>>
>> Any kernel log?
>>
> 
> wind_sysclk_init uses its argument for a division.
> 

--- ksrc/skins/vxworks/sysLib.c	(revision 3975)
+++ ksrc/skins/vxworks/sysLib.c	(working copy)
@@ -39,12 +39,12 @@
 int wind_sysclk_init(u_long period)
 {
 	extern u_long sync_time;
-	u_long init_rate = ONE_BILLION / period;
+	u_long init_rate = period ? ONE_BILLION / period : XN_APERIODIC_TICK;
 	int err;

 	err = xntbase_alloc("vxworks", period, sync_time ? 0 : XNTBISO,
 			    &wind_tbase);
-	if (err)
+	if (err || period == 0)
 		return err;

 	err = sysClkRateSet(init_rate);

-- 
Philippe.