From: Yinghai Lu <yinghai@kernel.org>
To: Brice Goglin <brice.goglin@gmail.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>,
Ulrich Drepper <drepper@gmail.com>,
jbarnes@virtuousgeek.org,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
lenb@kernel.org, x86@kernel.org, linux-pci@vger.kernel.org
Subject: Re: SNB PCI root information
Date: Fri, 22 Jun 2012 13:41:35 -0700 [thread overview]
Message-ID: <CAE9FiQUOWjLz86JZQrN-v1PdKfLAV022CPrjeArmYM5bRD+drA@mail.gmail.com> (raw)
In-Reply-To: <4FE4D7B7.8000004@gmail.com>
On Fri, Jun 22, 2012 at 1:38 PM, Brice Goglin <brice.goglin@gmail.com> wrote:
> Le 22/06/2012 19:28, Yinghai Lu a écrit :
>> On Fri, Jun 22, 2012 at 12:14 AM, Brice Goglin <brice.goglin@gmail.com> wrote:
>>
>>>> BIOS _PXM return 0 for both pci root buses?
>>>>
>>> Here's dmesg.
>>> I can't say for sure whether _PXM returns 0 since I don't know how to
>>> read all this :) But Linux puts the first socket cpumap in
>>> /sys/bus/pci/devices/*/local_cpus (and that's wrong according to the
>>> motherboard manual and according to the performance we see).
>>>
>> hi, looks like you system bios does not provide _PXM for the root bus.
>>
>
> So why does Linux say that all buses are close to socket 0 instead of
> close to everything as usual?
if (bus && node != -1) {
#ifdef CONFIG_ACPI_NUMA
if (pxm >= 0)
dev_printk(KERN_DEBUG, &bus->dev,
"on NUMA node %d (pxm %d)\n", node, pxm);
#else
dev_printk(KERN_DEBUG, &bus->dev, "on NUMA node %d\n", node);
#endif
}
so can you boot with "debug ignore_loglevel" ?
Thanks
Yinghai
next prev parent reply other threads:[~2012-06-22 20:41 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CAOPLpQfUm-2ENkbnYfXEn1nf9FHnaRk3aqQTSTBWb-CsfCUCFA@mail.gmail.com>
2012-06-16 3:03 ` SNB PCI root information Yinghai Lu
2012-06-16 8:52 ` Thomas Gleixner
2012-06-16 19:36 ` Yinghai Lu
2012-06-16 21:56 ` Bjorn Helgaas
2012-06-18 22:30 ` Ulrich Drepper
2012-06-18 23:40 ` Yinghai Lu
2012-06-19 12:36 ` Bjorn Helgaas
2012-06-19 18:20 ` Yinghai Lu
2012-06-20 17:11 ` Ulrich Drepper
2012-06-20 17:17 ` Bjorn Helgaas
2012-06-20 17:59 ` Ulrich Drepper
2012-06-20 18:37 ` Yinghai Lu
2012-06-20 18:46 ` Bjorn Helgaas
2012-06-20 19:28 ` Yinghai Lu
2012-06-20 19:34 ` Ingo Molnar
2012-06-20 20:04 ` Ulrich Drepper
2012-06-20 20:16 ` Bjorn Helgaas
2012-06-20 21:21 ` Ulrich Drepper
2012-06-20 23:58 ` Yinghai Lu
2012-06-21 2:37 ` Yinghai Lu
2012-06-21 3:50 ` Yinghai Lu
2012-06-21 12:17 ` Ulrich Drepper
2012-06-21 16:22 ` Ulrich Drepper
2012-06-21 18:11 ` Yinghai Lu
2012-06-25 17:54 ` Ulrich Drepper
2012-06-20 19:57 ` Brice Goglin
2012-06-21 2:43 ` Yinghai Lu
2012-06-21 5:56 ` Brice Goglin
2012-06-21 19:24 ` Yinghai Lu
2012-06-22 7:14 ` Brice Goglin
2012-06-22 17:28 ` Yinghai Lu
2012-06-22 20:38 ` Brice Goglin
2012-06-22 20:41 ` Yinghai Lu [this message]
2012-06-25 9:07 ` Brice Goglin
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