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On 17/05/2019 11:46, Jan Beulich wrote:
@@ -2334,9 +2339,10 @@ static void dump_irqs(unsigned char key)
spin_lock_irqsave(&desc->lock, flags);
- printk(" IRQ:%4d aff:%*pb vec:%02x %-15s status=%03x ",
- irq, nr_cpu_ids, cpumask_bits(desc->affinity), desc->arch.vector,
- desc->handler->typename, desc->status);
+ printk(" IRQ:%4d aff:%*pb/%*pb vec:%02x %-15s status=%03x ",
+ irq, nr_cpu_ids, cpumask_bits(desc->affinity),
+ nr_cpu_ids, cpumask_bits(desc->arch.cpu_mask),
+ desc->arch.vector, desc->handler->typename, desc->status);
Taking a sample large system (Rome, with your x2apic series to be
specific), which is only half as large as typical high-end Skylake
systems.
(XEN) IRQ information:
(XEN) IRQ: 0 affinity:00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000001 vec:f0 type=IO-APIC-edge status=00000000 time.c#timer_interrupt()
(XEN) IRQ: 1 affinity:00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000001 vec:68 type=IO-APIC-edge status=00000002 mapped, unbound
(XEN) IRQ: 3 affinity:ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff vec:70 type=IO-APIC-edge status=00000002 mapped, unbound
(XEN) IRQ: 4 affinity:ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff vec:f1 type=IO-APIC-edge status=00000000 ns16550.c#ns16550_interrupt()
(XEN) IRQ: 5 affinity:00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000001 vec:78 type=IO-APIC-edge status=00000002 mapped, unbound
(XEN) IRQ: 6 affinity:00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000001 vec:88 type=IO-APIC-edge status=00000002 mapped, unbound
(XEN) IRQ: 7 affinity:ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff vec:90 type=IO-APIC-level status=00000002 mapped, unbound
(XEN) IRQ: 8 affinity:00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000001 vec:98 type=IO-APIC-edge status=00000030 in-flight=0 domain-list=0: 8(---),
(XEN) IRQ: 9 affinity:00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000001 vec:a0 type=IO-APIC-level status=00000030 in-flight=1 domain-list=0: 9(PMM),
This change is going to double up the affinity block, which will
make the lines even longer.
Given that all examples I've ever spotted are either a single bit,
or a fully set block, {%*pbl} will render in a much shorter, and
keep the line length reasonable. (This in practice applies to the
previous patch as well).
~Andrew
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