From: Philippe Gerum <rpm@xenomai.org>
To: Jan Kiszka <jan.kiszka@domain.hid>
Cc: xenomai-core <xenomai@xenomai.org>
Subject: Re: [Xenomai-core] nkpod->watchdog_trigger per CPU?
Date: Fri, 07 Apr 2006 10:05:26 +0200 [thread overview]
Message-ID: <44361D46.9080003@domain.hid> (raw)
In-Reply-To: <44361837.9080206@domain.hid>
Jan Kiszka wrote:
> Hi,
>
> analysing the watchdog characteristics in our scenarios, I just wondered
> if it is SMP-aware (we have no SMP in use, it's a pure analytical concern).
>
> The watchdog timeout is stored system-wide in nkpod->watchdog_trigger,
> but it is based on a per-CPU clock (TSC). Is the tick IRQ bound to a
> specific CPU in SMP scenarios so that this doesn't matter? Or am I just
> overseeing some detail?
>
Good catch. This code was written before per-CPU ticking became the
"official" implementation, so it needs to be updated.
> Jan
>
>
>
> ------------------------------------------------------------------------
>
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> Xenomai-core@domain.hid
> https://mail.gna.org/listinfo/xenomai-core
--
Philippe.
next prev parent reply other threads:[~2006-04-07 8:05 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-04-07 7:43 [Xenomai-core] nkpod->watchdog_trigger per CPU? Jan Kiszka
2006-04-07 8:05 ` Philippe Gerum [this message]
2006-04-07 13:31 ` Gilles Chanteperdrix
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