Messages in this thread | | | Date | Thu, 15 Jan 2004 21:45:21 -0800 | From | William Lee Irwin III <> | Subject | Re: [PATCH] 2.6.1-mm2: Get irq_vector size right for generic subarch UP installer kernels |
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On Thu, 15 Jan 2004, James Cleverdon wrote: >> No, I haven't exceeded the available vectors, but wli has on a large >> NUMA-Q box.
On Thu, Jan 15, 2004 at 05:40:54PM -0500, Zwane Mwaikambo wrote: > Yes i believe the 8 node NUMA-Qs do this easily.
The mainline kernel panics before console_init() on the 9th IO-APIC (the first IO-APIC on the 5th node) and this has been an extreme annoyance essentially since Linux was ported to the beasts.
It won't be long before currently shipping ia32 boxen catch up with that blast from the 4+ -year-old past, and x86-64 or whatever will have similar issues if/when it ever gets chipsets allowing similar numbers of cpus and devices (presumably they're correlated) to be attached, since AFAIK it didn't change the number of IDT entries.
One thing that's particularly asinine is that since the things use physical destinations in the RTE's and use a serial APIC bus or whatever per node (i.e. can only interrupt cpus in their node), they really are just a tabulation method away from functioning properly.
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