Dave Jones wrote:
> > If you have CPU hotplug enabled, you can run SMP code!Sure, but if you boot with 1 CPU, spinlocks get nop'd to emulate UP, and on a 'installed a new cpu' hotplug event, they all come back.
The point that you don't nop if you have hotplug enabled (which is not the norm.)
-hpa - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
- References:
- Re: [PATCH 1/10] Cr4 is valid on some 486s
- From: Linus Torvalds <[email protected]>
- Re: [PATCH 1/10] Cr4 is valid on some 486s
- From: Linus Torvalds <[email protected]>
- Re: [PATCH 1/10] Cr4 is valid on some 486s
- From: Gerd Knorr <[email protected]>
- Re: [PATCH 1/10] Cr4 is valid on some 486s
- From: Linus Torvalds <[email protected]>
- Re: [PATCH 1/10] Cr4 is valid on some 486s
- From: Gerd Knorr <[email protected]>
- Re: [PATCH 1/10] Cr4 is valid on some 486s
- From: Gerd Knorr <[email protected]>
- Re: [PATCH 1/10] Cr4 is valid on some 486s
- From: Zachary Amsden <[email protected]>
- Re: [PATCH 1/10] Cr4 is valid on some 486s
- From: Arjan van de Ven <[email protected]>
- Re: [PATCH 1/10] Cr4 is valid on some 486s
- From: Dave Jones <[email protected]>
- Re: [PATCH 1/10] Cr4 is valid on some 486s
- From: "H. Peter Anvin" <[email protected]>
- Re: [PATCH 1/10] Cr4 is valid on some 486s
- From: Dave Jones <[email protected]>
- Re: [PATCH 1/10] Cr4 is valid on some 486s
- Prev by Date: Re: [PATCH 4/5] I2O: Bugfixes
- Next by Date: Re: [PATCH 0/12] FS-Cache: Generic filesystem caching facility
- Previous by thread: Re: [PATCH 1/10] Cr4 is valid on some 486s
- Next by thread: Re: [PATCH 1/10] Cr4 is valid on some 486s
- Index(es):