Mailinglist Archive: opensuse-es (656 mails)
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Re: [opensuse-es] [OT] Pregunta: Hardware memorias
- From: "Carlos E. R." <robin.listas@xxxxxxxxxxxxxx>
- Date: Wed, 4 Jul 2007 14:35:35 +0200 (CEST)
- Message-id: <Pine.LNX.4.64.0707041430140.24503@xxxxxxxxxxxxxxxx>
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El 2007-07-04 a las 14:28 +0200, Carlos E. R. escribió:
> Subject: Re: [opensuse] Kernel only see 3 of 4GB
>
> a primeros de junio.
Por ejemplo, éste:
] Date: Fri, 8 Jun 2007 17:18:53 +0200
] From: Philipp Thomas
] Subject: Re: [opensuse] Kernel only see 3 of 4GB
]
] * Kai Ponte (kai@) [20070604 16:16]:
]
] > Turns out, the motherboard on these laptops (which may be similar to
] > yours) only can address something like 3.2G.
]
] Folks, how many times does this need to be repeated? The BIOS *has* to
] reserve some address space below 4 GiB for I/O puposes, e.g. 32 bit PCI
] devices. RAM in that range is not accessable. Therefore some BIOSs offer
] theoption to remap that RAM to above the 4GB threshold. In order to
] access thisremapped RAM, you either need a 64bit kernel (if you're using
] a processorthat supports AMD64/EM64T) or a 32bit kernel with PAE enabled
] (i.e.kernel-bigsmp).
]
] Philipp
Es lo que algunas bios llaman "memory hole" y tienen una opción para
remapearla. Pero muchas placas no pueden, sobre todo en portátiles: y la
gente se da cuenta ahora que la memoria es "barata" y el vista necesita
dos gigas para ir "decente", y piensan en comprar cuatro para volar.
Y una vez remapeada, el kernel tiene que estar preparado para poder
accesarla (tanto en cpus de 32 como de 64 bits).
- --
Saludos
Carlos E.R.
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El 2007-07-04 a las 14:28 +0200, Carlos E. R. escribió:
> Subject: Re: [opensuse] Kernel only see 3 of 4GB
>
> a primeros de junio.
Por ejemplo, éste:
] Date: Fri, 8 Jun 2007 17:18:53 +0200
] From: Philipp Thomas
] Subject: Re: [opensuse] Kernel only see 3 of 4GB
]
] * Kai Ponte (kai@) [20070604 16:16]:
]
] > Turns out, the motherboard on these laptops (which may be similar to
] > yours) only can address something like 3.2G.
]
] Folks, how many times does this need to be repeated? The BIOS *has* to
] reserve some address space below 4 GiB for I/O puposes, e.g. 32 bit PCI
] devices. RAM in that range is not accessable. Therefore some BIOSs offer
] theoption to remap that RAM to above the 4GB threshold. In order to
] access thisremapped RAM, you either need a 64bit kernel (if you're using
] a processorthat supports AMD64/EM64T) or a 32bit kernel with PAE enabled
] (i.e.kernel-bigsmp).
]
] Philipp
Es lo que algunas bios llaman "memory hole" y tienen una opción para
remapearla. Pero muchas placas no pueden, sobre todo en portátiles: y la
gente se da cuenta ahora que la memoria es "barata" y el vista necesita
dos gigas para ir "decente", y piensan en comprar cuatro para volar.
Y una vez remapeada, el kernel tiene que estar preparado para poder
accesarla (tanto en cpus de 32 como de 64 bits).
- --
Saludos
Carlos E.R.
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