Messages in this thread | | | Date | Sat, 21 Feb 2004 14:33:59 +0100 | From | Pavel Machek <> | Subject | Re: [PATCH] Booting when CPUs fail to come up. |
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Hi!
> > > I recently played with setting a bit in cpu_possible_map that wasn't > > > in cpu_online_map: this can happen without hotplug CPU when a CPU > > > fails to boot, for example. > > > > Is it safe to continue when one cpu is apparently malfunctioning? > > Well, patch was overzealous and no longer required. > > But we shouldn't crash when this happens just because a CPU didn't > come up.
I still do not agree.
You have a system you tried to kick CPU #13 alive, and something very wrong happened, CPU #13 did not come up. It is there, has full access to memory, it is probably running some kind of program.... I'd not dare mount disks read-write in such situation and I believe crashing early is actually right thing to do. Pavel -- When do you have a heart between your knees? [Johanka's followup: and *two* hearts?] - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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