From: Ingo Molnar <mingo@elte.hu>
To: Cyrill Gorcunov <gorcunov@gmail.com>
Cc: Glauber Costa <glommer@gmail.com>,
LKML <linux-kernel@vger.kernel.org>,
"H. Peter Anvin" <hpa@zytor.com>,
Thomas Gleixner <tglx@linutronix.de>,
"Maciej W. Rozycki" <macro@linux-mips.org>
Subject: Re: [PATCH -tip] x86: do_boot_cpu - check if we have ESR register
Date: Wed, 22 Oct 2008 16:13:54 +0200 [thread overview]
Message-ID: <20081022141354.GA26372@elte.hu> (raw)
In-Reply-To: <20081022140009.GA9639@localhost>
* Cyrill Gorcunov <gorcunov@gmail.com> wrote:
> We should touch ESR register if only we have it.
> The patch fixes the problem mentoined here
>
> http://lkml.org/lkml/2008/10/17/147
>
> Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
> CC: Glauber Costa <glommer@gmail.com>
> - apic_write(APIC_ESR, 0);
> - apic_read(APIC_ESR);
> + if (APIC_INTEGRATED(apic_version[phys_apicid])) {
> + apic_write(APIC_ESR, 0);
> + apic_read(APIC_ESR);
> + }
i'm wondering - is the server there really that old, that it has no
integrated lapic? I.e. it's an i486 SMP box or so? Or perhaps some
other, weird SMP box?
Ingo
next prev parent reply other threads:[~2008-10-22 14:15 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-10-22 14:00 [PATCH -tip] x86: do_boot_cpu - check if we have ESR register Cyrill Gorcunov
2008-10-22 14:13 ` Ingo Molnar [this message]
2008-10-22 14:17 ` Glauber Costa
2008-10-22 15:42 ` Maciej W. Rozycki
2008-10-22 14:17 ` Cyrill Gorcunov
2008-10-22 14:23 ` Ingo Molnar
2008-10-22 14:52 ` Cyrill Gorcunov
2008-10-22 14:59 ` Ingo Molnar
2008-10-22 15:02 ` Cyrill Gorcunov
2008-10-22 15:04 ` Ingo Molnar
2008-10-22 15:06 ` Cyrill Gorcunov
2008-10-22 15:18 ` Max Kellermann
2008-10-22 15:52 ` Maciej W. Rozycki
2008-10-22 15:41 ` Maciej W. Rozycki
2008-10-22 15:29 ` Maciej W. Rozycki
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