Re: [PATCH 4/4] iseries_veth: Cleanup skbs to prevent unregister_netdevice() hanging

On Thu, May 12, 2005 at 06:09:45PM +1000, Michael Ellerman wrote:

Hi Andrew, Jeff,

The iseries_veth driver is badly behaved in that it will keep TX packets
hanging around forever if they're not ACK'ed and the queue never fills up.

This causes the unregister_netdevice code to wait forever when we try to take
the device down, because there's still skbs around with references to our
struct net_device.

There's already code to cleanup any un-ACK'ed packets in veth_stop_connection()
but it's being called after we unregister the net_device, which is too late.

The fix is to rearrange the module exit function so that we cleanup any
outstanding skbs and then unregister the driver.

Signed-off-by: Michael Ellerman <redacted>

Nice catch.

Acked-by: David Gibson <redacted>

-- 
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