On Thu, Feb 13, 2025 at 01:32:38PM +0100, Marcin Szycik wrote:
> 
> 
> On 13.02.2025 11:55, Simon Horman wrote:
> > On Tue, Feb 11, 2025 at 06:43:21PM +0100, Marcin Szycik wrote:
> >> If ice_ena_vfs() fails after calling ice_create_vf_entries(), it frees
> >> all VFs without removing them from snapshot PF-VF mailbox list, leading
> >> to list corruption.
> >>
> >> Reproducer:
> >>   devlink dev eswitch set $PF1_PCI mode switchdev
> >>   ip l s $PF1 up
> >>   ip l s $PF1 promisc on
> >>   sleep 1
> >>   echo 1 > /sys/class/net/$PF1/device/sriov_numvfs
> > 
> > Should the line above be "echo 0" to remove the VFs before creating VFs
> > below (I'm looking at sriov_numvfs_store())?
> 
> Both "echo 1" commands fail (I'm fixing it in patch 2/2), that's why there's
> no "echo 0" in between. Also, in this minimal example I'm assuming no VFs
> were initially present.
> 
> Thanks for reviewing!

Likewise, thanks for the clarification.

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