Subject: Re: CVS commit: src/sys/arch/xen/xen
To: None <email@example.com>
From: YAMAMOTO Takashi <firstname.lastname@example.org>
Date: 10/04/2005 00:10:20
> > - as you defer ack until xennetback_tx_free and the mbuf can live ~forever,
> > you can capture all buffers.
> > (i think that linux netback has the same problem.)
> I wondered about this. Can the kernel really grab a mbuf forever ? For
> which reason ?
eg. when an application never read from the socket.
> An easy fix would be to switch back to copy when we are low on buffers.
yes, it can be a workaround.