From: Kimio Suganuma <k-suganuma@mvj.biglobe.ne.jp>
To: linux-ia64@vger.kernel.org
Subject: Re: [Linux-ia64] quick ia64 patch for 2.5.44 (UP only)
Date: Sat, 26 Oct 2002 01:09:28 +0000 [thread overview]
Message-ID: <marc-linux-ia64-105590709805256@msgid-missing> (raw)
In-Reply-To: <marc-linux-ia64-105590709805243@msgid-missing>
Hi,
I succeeded to boot the kernel on 8way ia64 box by
porting the generic percpu (i.e. i386's percpu) to ia64.
I think this should not right way to fix the problem.
I can show the patch if there is a requirement.
Thanks,
Kimi
On Fri, 25 Oct 2002 16:23:43 -0700
Kimio Suganuma <k-suganuma@mvj.biglobe.ne.jp> wrote:
> I found that functions in timer.c and rcupdate.c are calling
> tasklet_init() for all CPUs before APs start running.
> I think per_cpu() cannot be used for not running CPU for ia64,
> and this assumption was broken by them.
>
> I attached args for tasklet_init() at booting and you can see
> tasklet structures for CPU#0 are only valid.
> Caller might be init_timers() and rcu_init().
>
> I cannot come up with good solution for it but I think
> we have to change current per_cpu implementation.
> Any idea?
--
Kimio Suganuma <k-suganuma@mvj.biglobe.ne.jp>
next prev parent reply other threads:[~2002-10-26 1:09 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-10-25 5:35 [Linux-ia64] quick ia64 patch for 2.5.44 (UP only) David Mosberger
2002-10-25 21:50 ` Kimio Suganuma
2002-10-25 23:23 ` Kimio Suganuma
2002-10-26 1:09 ` Kimio Suganuma [this message]
2002-10-27 16:42 ` Kimio Suganuma
2002-10-27 17:13 ` Erich Focht
2002-10-27 23:57 ` Peter Chubb
2002-10-28 0:51 ` Kimio Suganuma
2002-10-28 1:51 ` Peter Chubb
2002-10-28 3:02 ` David Mosberger
2002-10-28 17:12 ` Luck, Tony
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