According to "Greg KH," co-maintainer of the 2.6.x.y series of important stability and security fixes, the Linux kernel does not suffer [1] from the much-hyped hyper threading vulnerability that affected the BSDs: " The main reason there have not been any updates, is that there really isn't a problem for the 2.6 kernel.
The original author has admited this finally, no one was ever able to reproduce it on a 2.6 kernel. The only reason I released a kernel update, was at the time, we thought there was an off-chance that there was a problem. However in further testing, it has not been the case." This confirms Linus's earler assertion[2].
[1] http://lwn.net/Articles/136516/#Comments
[2] http://kerneltrap.org/node/5120
marco ghidinelli wrote:
According to "Greg KH," co-maintainer of the 2.6.x.y series of important stability and security fixes, the Linux kernel does not suffer [1] from the much-hyped hyper threading vulnerability that affected the BSDs: " The main reason there have not been any updates, is that there really isn't a problem for the 2.6 kernel.
The original author has admited this finally, no one was ever able to reproduce it on a 2.6 kernel. The only reason I released a kernel update, was at the time, we thought there was an off-chance that there was a problem. However in further testing, it has not been the case." This confirms Linus's earler assertion[2].
UPDATE: Linus Torvalds has commented on this on the linux-kernel mailing list. He clearly doesn't understand the problem -- but in his defence, he's not a security guy. Hopefully the Linux developers who do understand security will talk some sense into him. Anche a me non e' chiaro :D qualcuno mi spiega cos'è un "dual-core" systems? un multiprocessore? ciao Bi0
On Mon, May 30, 2005 at 02:22:35PM +0200, fabio deambrogio wrote:
qualcuno mi spiega cos'? un "dual-core" systems? un multiprocessore?
una cpu dual core sono due cpu sullo stesso pezzo di silicio, unico package, unico zoccolo. quindi un vero multiprocessore.
hyperthreading invece e' smp virtuale fatto a livello di cpu, ma la cpu e' single core.
cia Francesco
--- pivi pivi@pivistrello.it ha scritto:
On Mon, May 30, 2005 at 02:22:35PM +0200, fabio deambrogio wrote:
qualcuno mi spiega cos'? un "dual-core" systems?
un multiprocessore? una cpu dual core sono due cpu sullo stesso pezzo di silicio, unico package, unico zoccolo. quindi un vero multiprocessore.
hyperthreading invece e' smp virtuale fatto a livello di cpu, ma la cpu e' single core.
cia Francesco
Cialtroni mailing list
AMD con il socket 939 sulle cpu dual core rende le sue cpu compatibili con le mobo attualmente in commercio, mica poco, si può fare 1 upgrade con poco.
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andando OT :-) segnalo questa news presa da ZeusNews riguardo i nuovi proci dual-core della intel http://www.zeusnews.it/index.php3?ar=stampa&cod=4161
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