Messages in this thread | | | Date | Thu, 19 Jul 2018 15:48:31 +0200 (CEST) | From | Thomas Gleixner <> | Subject | Re: NULL pointer dereference in msi_set_mask_bit |
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Paul,
On Thu, 19 Jul 2018, Paul Menzel wrote:
> I had to copy the files, and then was able to create an archive with > non-zero files. Please find the tar archive attached.
Thanks for providing the data. All looks normal there.
Just for clarification. Did this happen exactly once, or did it just not happen again after you plugged in a serial cable?
One thing you might try is to disable irqbalanced when the machine is up and then stress the affinity setter mechanism with scripting.
Something like
while true; do for I in {0..3}; do echo $I > /proc/irq/$IRQ/smp_affinity_list; done done
might be able to trigger it. But don't ask me which interrupt was involved, so you have to iterate through the ones which are MSI based.
'cat /proc/interrupt | grep MSI' will tell you.
Thanks,
tglx
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