Messages in this thread | | | From | Shuah Khan <> | Subject | common_interrupt: No irq handler for vector | Date | Fri, 11 Dec 2020 13:41:13 -0700 |
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I am debugging __common_interrupt: 1.55 No irq handler for vector messages and noticed comments and code don't agree:
arch/x86/kernel/apic/msi.c: msi_set_affinity() says:
* If the vector is in use then the installed device handler will * denote it as spurious which is no harm as this is a rare event * and interrupt handlers have to cope with spurious interrupts * anyway. If the vector is unused, then it is marked so it won't * trigger the 'No irq handler for vector' warning in * common_interrupt().
common_interrupt() prints message if vector is unused: VECTOR_UNUSED
ack_APIC_irq();
if (desc == VECTOR_UNUSED) { pr_emerg_ratelimited("%s: %d.%u No irq handler for vector\n", __func__, smp_processor_id(), vector); }
Something wrong here?
thanks, -- Shuah
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