Bjorn,
On Sat, Nov 14 2020 at 00:31, Thomas Gleixner wrote:
> On Fri, Nov 13 2020 at 10:46, Bjorn Helgaas wrote:
>> pci_device_shutdown() still clears the Bus Master Enable bit if we're
>> doing a kexec and the device is in D0-D3hot, which should also disable
>> MSI/MSI-X. Why doesn't this solve the problem? Is this because the
>> device causing the storm was in PCI_UNKNOWN state?
>
> That's indeed a really good question.
So we do that on kexec, but is that true when starting a kdump kernel
from a kernel crash? I doubt it.
Thanks,
tglx
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