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From: Mike Travis <travis@sgi.com>
To: Ingo Molnar <mingo@elte.hu>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	Andi Kleen <ak@suse.de>, Christoph Lameter <clameter@sgi.com>,
	linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 4/5] x86: Add config variables for SMP_MAX
Date: Sat, 19 Jan 2008 13:39:06 -0800	[thread overview]
Message-ID: <47926DFA.5020601@sgi.com> (raw)
In-Reply-To: <20080119145243.GA27974@elte.hu>

Ingo Molnar wrote:
> * travis@sgi.com <travis@sgi.com> wrote:
> 
>> Adds and increases some config variables to accomodate larger SMP
>> configurations:
>>
>> 	NR_CPUS:      max limit now 4096
>> 	NODES_SHIFT:  max limit now 9
>> 	THREAD_ORDER: max limit now 3
>> 	X86_SMP_MAX:  say Y to enable possible cpus == NR_CPUS
>>
>> Signed-off-by: Mike Travis <travis@sgi.com>
> 
> i've bisected a boot failure down to this patch (sans the THREAD_ORDER 
> bits): it causes an instant reboot of the 64-bit kernel upon bootup. 
> Failing config attached.
> 
> 	Ingo
> 

Thanks Ingo! 

I've pulled the THREAD_ORDER change from my next version of the patch.
Seems SMP_MAX is just not ready for prime time yet.

One problem that I'm having appears to be that the !NUMA config of the
current -mm version also doesn't boot so I haven't been able to verify
that.  (At least it doesn't seem to make it worse... ;-)

Thanks,
Mike

WARNING: multiple messages have this Message-ID (diff)
From: Mike Travis <travis@sgi.com>
To: Ingo Molnar <mingo@elte.hu>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	Andi Kleen <ak@suse.de>, Christoph Lameter <clameter@sgi.com>,
	linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 4/5] x86: Add config variables for SMP_MAX
Date: Sat, 19 Jan 2008 13:39:06 -0800	[thread overview]
Message-ID: <47926DFA.5020601@sgi.com> (raw)
In-Reply-To: <20080119145243.GA27974@elte.hu>

Ingo Molnar wrote:
> * travis@sgi.com <travis@sgi.com> wrote:
> 
>> Adds and increases some config variables to accomodate larger SMP
>> configurations:
>>
>> 	NR_CPUS:      max limit now 4096
>> 	NODES_SHIFT:  max limit now 9
>> 	THREAD_ORDER: max limit now 3
>> 	X86_SMP_MAX:  say Y to enable possible cpus == NR_CPUS
>>
>> Signed-off-by: Mike Travis <travis@sgi.com>
> 
> i've bisected a boot failure down to this patch (sans the THREAD_ORDER 
> bits): it causes an instant reboot of the 64-bit kernel upon bootup. 
> Failing config attached.
> 
> 	Ingo
> 

Thanks Ingo! 

I've pulled the THREAD_ORDER change from my next version of the patch.
Seems SMP_MAX is just not ready for prime time yet.

One problem that I'm having appears to be that the !NUMA config of the
current -mm version also doesn't boot so I haven't been able to verify
that.  (At least it doesn't seem to make it worse... ;-)

Thanks,
Mike

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  parent reply	other threads:[~2008-01-19 21:39 UTC|newest]

Thread overview: 81+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-01-18 18:30 [PATCH 0/5] x86: Reduce memory usage for large count NR_CPUs fixup travis
2008-01-18 18:30 ` travis
2008-01-18 18:30 ` [PATCH 1/5] x86: Change size of node ids from u8 to u16 fixup travis
2008-01-18 18:30   ` travis
2008-01-18 19:56   ` Jan Engelhardt
2008-01-18 19:56     ` Jan Engelhardt
2008-01-18 19:59     ` Mike Travis
2008-01-18 19:59       ` Mike Travis
2008-01-19  4:03   ` Yinghai Lu
2008-01-19  4:03     ` Yinghai Lu
2008-01-19  4:36     ` David Rientjes
2008-01-19  4:36       ` David Rientjes
2008-01-19  4:43       ` Yinghai Lu
2008-01-19  4:43         ` Yinghai Lu
2008-01-19  5:17         ` David Rientjes
2008-01-19  5:17           ` David Rientjes
2008-01-19  6:20           ` Yinghai Lu
2008-01-19  6:20             ` Yinghai Lu
2008-01-19 21:25       ` Mike Travis
2008-01-19 21:25         ` Mike Travis
2008-01-19 22:33         ` David Rientjes
2008-01-19 22:33           ` David Rientjes
2008-01-20  0:41           ` Mike Travis
2008-01-20  0:41             ` Mike Travis
2008-01-20  1:31             ` Yinghai Lu
2008-01-20  1:31               ` Yinghai Lu
2008-01-20  6:22             ` David Rientjes
2008-01-20  6:22               ` David Rientjes
2008-01-18 18:30 ` [PATCH 2/5] x86: Change NR_CPUS arrays in numa_64 fixup travis
2008-01-18 18:30   ` travis
2008-01-18 18:30 ` [PATCH 3/5] x86: Change bios_cpu_apicid to percpu data variable fixup travis
2008-01-18 18:30   ` travis
2008-01-18 18:30 ` [PATCH 4/5] x86: Add config variables for SMP_MAX travis
2008-01-18 18:30   ` travis
2008-01-18 20:04   ` Ingo Oeser
2008-01-18 20:04     ` Ingo Oeser
2008-01-18 20:10     ` Christoph Lameter
2008-01-18 20:10       ` Christoph Lameter
2008-01-18 20:14     ` Mike Travis
2008-01-18 20:14       ` Mike Travis
2008-01-18 20:36       ` Andi Kleen
2008-01-18 20:36         ` Andi Kleen
2008-01-18 20:48         ` Mike Travis
2008-01-18 20:48           ` Mike Travis
2008-01-18 21:02         ` [PATCH 4/5] x86: Add config variables for SMP_MAX II Andi Kleen
2008-01-18 21:02           ` Andi Kleen
2008-01-18 20:48       ` [PATCH 4/5] x86: Add config variables for SMP_MAX Ingo Molnar
2008-01-18 20:48         ` Ingo Molnar
2008-01-18 20:55         ` Mike Travis
2008-01-18 20:55           ` Mike Travis
2008-01-18 20:58           ` Andi Kleen
2008-01-18 20:58             ` Andi Kleen
2008-01-28 16:45       ` Paul Jackson
2008-01-28 16:45         ` Paul Jackson
2008-01-28 17:00         ` Andi Kleen
2008-01-28 17:00           ` Andi Kleen
2008-01-18 20:46   ` Ingo Molnar
2008-01-18 20:46     ` Ingo Molnar
2008-01-19 14:52   ` Ingo Molnar
2008-01-19 15:15     ` Ingo Molnar
2008-01-19 15:15       ` Ingo Molnar
2008-01-19 15:24       ` Ingo Molnar
2008-01-19 15:24         ` Ingo Molnar
2008-01-19 21:52         ` Mike Travis
2008-01-19 21:52           ` Mike Travis
2008-01-19 23:24         ` Mike Travis
2008-01-19 23:24           ` Mike Travis
2008-01-20  1:14         ` Mike Travis
2008-01-20  1:14           ` Mike Travis
2008-01-19 21:39     ` Mike Travis [this message]
2008-01-19 21:39       ` Mike Travis
2008-01-18 18:30 ` [PATCH 5/5] x86: Add debug of invalid per_cpu map accesses travis
2008-01-18 18:30   ` travis
2008-01-18 18:33   ` Andi Kleen
2008-01-18 18:33     ` Andi Kleen
2008-01-18 18:49     ` Mike Travis
2008-01-18 18:49       ` Mike Travis
2008-01-18 18:56     ` Christoph Lameter
2008-01-18 18:56       ` Christoph Lameter
2008-01-18 20:49     ` Ingo Molnar
2008-01-18 20:49       ` Ingo Molnar

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