Re: workqueue, pci: INFO: possible recursive locking detected

[Yinghai Lu]

On Mon, Jul 22, 2013 at 2:38 PM, Bjorn Helgaas <bhelgaas@xxxxxxxxxx> wrote:
> [+cc Alex, Yinghai, linux-pci]

>
> Isn't this for the same issue Alex and others have been working on?

yes.

>
> It doesn't feel like we have consensus on how this should be fixed.
> You're proposing a change to work_on_cpu(), Alex proposed a change to
> pci_call_probe() [1], Yinghai proposed some changes to the PCI core
> SR-IOV code and several drivers [2].
>
> [1] https://lkml.kernel.org/r/20130624195942.40795.27292.stgit@xxxxxxxxxxxxxxxxxxxxxxxx
> [2] https://lkml.kernel.org/r/1368498506-25857-7-git-send-email-yinghai@xxxxxxxxxx

Actually i used Alex's patch and attached -v2 of sriov_attatch in my
local testing for a while. -v2: remove the device_schedule_callback
hacking.

Also, someone comment that numa_node_id() in alex's should not be
used, as it could
be preempted.

Thanks

Yinghai

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