Re: [PATCH v5 0/5] Add movablecore_map boot option

["H. Peter Anvin" <hpa@zytor.com>]

That *is* user abuse.

Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com> wrote:

>2013/01/15 7:41, Luck, Tony wrote:
>>> hm, why.  Obviously SRAT support will improve things, but is it
>>> actually unusable/unuseful with the command line configuration?
>>
>
>> Users will want to set these moveable zones along node boundaries
>> (the whole purpose is to be able to remove a node by making sure
>> the kernel won't allocate anything tricky in it, right?)
>
>Yes
>
>> So raw addresses
>> are usable ... but to get them right the user will have to go parse
>the
>> SRAT table manually to come up with the addresses.
>
>I don't think so because user can easily get raw address by kernel
>message in x86.
>
>Here are kernel messages of x86 architecture.
>---
>[    0.000000] SRAT: Node 0 PXM 0 [mem 0x00000000-0x7fffffff]
>[    0.000000] SRAT: Node 0 PXM 0 [mem 0x100000000-0x7ffffffff]
>[    0.000000] SRAT: Node 1 PXM 2 [mem 0x1000000000-0x17ffffffff]
>[    0.000000] SRAT: Node 2 PXM 3 [mem 0x1800000000-0x1fffffffff]
>[    0.000000] SRAT: Node 3 PXM 4 [mem 0x2000000000-0x27ffffffff]
>[    0.000000] SRAT: Node 4 PXM 5 [mem 0x2800000000-0x2fffffffff]
>[    0.000000] SRAT: Node 5 PXM 6 [mem 0x3000000000-0x37ffffffff]
>[    0.000000] SRAT: Node 6 PXM 7 [mem 0x3800000000-0x3fffffffff]
>[    0.000000] SRAT: Node 7 PXM 1 [mem 0x800000000-0xfffffffff]
>---
>
>Thanks,
>Yasuaki Ishimatsu
>
>> Any time you
>> make the user go off and do some tedious calculation that the
>computer
>> should have done for them is user-abuse.
>>
>> -Tony
>>

-- 
Sent from my mobile phone. Please excuse brevity and lack of formatting.

--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org.  For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>