No irq handler for vector (irq -1)

[Neil Horman]

On Sun, May 17, 2015 at 06:10:37PM +0200, Cedric Gava wrote:
> Hello
> 
> The message "No irq handler for vector (irq -1)" appears with no apparent period/correlation. After googling, irqbalance seems to be suspect
> 
This has nothing to do with irqbalance, but rather with the mechanism by which
the kernel migrates irqs and sets their affinity.  There are some irq
controllers which fail to drain interrupts from a given cpu when being migrated,
and this leads to an inconsistency.  

Do you have a 55XX or X58 chipset on your system?  I expect you do.  You would
need to run a 3.14 kernel or later to get the full set of pci quirks that will
fix the problem (though, by fixing the problem, the the solution is to disable
iommu operation).

Best
neil

> 
> 
> the archive attached provide :
> irqbalance.log    proc_interrupts   smp_affinity.txt 
>  
> irqbalance version :  1.0.3-3
> 
> No lstopo on my distro (debian wheezy)
> 
> I’ve redirected the message No irq handler for vector (irq -1) from rsyslog to irqbalance.log. So you should be able to locate in irqbalance.log when the message occurred.
> 
> Thank you for your support
> 
> Cedric
> 
> 
> 


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