On Jul 18 2007 20:38, Andi Kleen wrote: >> >> >> >> Well, how big the vmlinux file is matters if it doesn't fit in memory >> >> with enough time to get to the phase where it is dumping the init >> >> sections. >> > >> >If you don't have enough memory for a few tens of KB of init sections >> >you're very unlikely to have enough memory for user space. >> >> If the code was not too hackish, I would not buy that. >> Routers for example can run -- minus the userspace utilities required to set >> things up -- "without" userspace. > >They still need memory for packets and other data structures. >Without having enough memory to queue packets and keep the routing cache you >cannot do >any useful routing.
And the hypothetical case where RAM is hotplugged and/or recognized after the kernel has been loaded by the bootloader? I do not claim to be an expert, but ASMP (http://lkml.org/lkml/2006/5/13/44) looks like RAM will join during the kernel boot. Jan -- - 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/
