Messages in this thread Patch in this message | | | Date | Tue, 21 Feb 2006 08:20:10 -0800 (PST) | From | Zwane Mwaikambo <> | Subject | Re: i386 cpu hotplug bug - instant reboot when onlining secondary |
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On Sun, 19 Feb 2006, Nathan Lynch wrote:
> On a dual P3 Xeon machine, offlining and then onlining a cpu makes the > box instantly reboot. I've been seeing this throughout the 2.6.16-rc > series, but wasn't able to collect more information until now. Not > sure when this last worked, unfortunately. > > With the debugging patch below, I get this on serial console:
Does 2.6.14 work? Also i wonder if it gets out of the trampoline...
Index: linux-2.6.16-rc2/arch/i386/kernel/smpboot.c =================================================================== RCS file: /home/cvsroot/linux-2.6.16-rc2/arch/i386/kernel/smpboot.c,v retrieving revision 1.1.1.1 diff -u -p -B -r1.1.1.1 smpboot.c --- linux-2.6.16-rc2/arch/i386/kernel/smpboot.c 11 Feb 2006 18:55:06 -0000 1.1.1.1 +++ linux-2.6.16-rc2/arch/i386/kernel/smpboot.c 21 Feb 2006 16:19:22 -0000 @@ -514,6 +514,7 @@ static void __devinit start_secondary(vo cpu_init(); preempt_disable(); smp_callin(); + Dprintk("startup_secondary\n"); while (!cpu_isset(smp_processor_id(), smp_commenced_mask)) rep_nop(); setup_secondary_APIC_clock(); - 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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