Re: [PATCH] powerpc/smp: Wait until secondaries are active & online

2015-02-25 Thread Stewart Smith
Michael Ellerman writes: > Anton has a busy ppc64le KVM box where guests sometimes hit the infamous > "kernel BUG at kernel/smpboot.c:134!" issue during boot: > > BUG_ON(td->cpu != smp_processor_id()); > > Basically a per CPU hotplug thread scheduled on the wrong CPU. The oops > output confirms

Re: [PATCH] powerpc/smp: Wait until secondaries are active & online

2015-02-25 Thread Stewart Smith
Michael Ellerman writes: > Anton has a busy ppc64le KVM box where guests sometimes hit the infamous > "kernel BUG at kernel/smpboot.c:134!" issue during boot: > > BUG_ON(td->cpu != smp_processor_id()); > > Basically a per CPU hotplug thread scheduled on the wrong CPU. The oops > output confirms

[PATCH] powerpc/smp: Wait until secondaries are active & online

2015-02-23 Thread Michael Ellerman
Anton has a busy ppc64le KVM box where guests sometimes hit the infamous "kernel BUG at kernel/smpboot.c:134!" issue during boot: BUG_ON(td->cpu != smp_processor_id()); Basically a per CPU hotplug thread scheduled on the wrong CPU. The oops output confirms it: CPU: 0 Comm: watchdog/130 Th