On 4/9/10 11:14 AM, Luigi Rizzo wrote:
On Wed, Apr 07, 2010 at 09:58:38PM +0200, Anders Hagman wrote:
Hi
When using dummynet inside a vnet node with a simple pipe the kernel
panic on the first packet.
I use 8.0-STABLE cvsuped at 7 Apr 15:28
The ipfw code with dummynet is largely changed and the patch in the url
below will not work.
http://www.freebsd.org/cgi/query-pr.cgi?pr=143621
Is there a fix in the near future?
URL: http://svn.freebsd.org/changeset/base/206428
Log:
This commit enables partial operation of dummynet with kernels
compiled with "options VIMAGE".
As it is now, there is still a single instance of the pipes,
and it is only usable from vnet0 (the main instance).
Trying to use a pipe from a different vimage does not crash
the system as it did before, but the traffic coming out from
the pipe goes to the wrong place, and i still need to
figure out where.
Support for per-vimage pipes is almost there (just a matter of
uncommenting the VNET_* definitions for dn_cfg, plus putting into
the structure the remaining static variables), however i need
first to figure out how init/uninit work, and also to understand
where packets are ending up on exit from a pipe.
please read:
http://p4db.freebsd.org/fileLogView.cgi?FSPC=//depot/projects/vimage/porting_to_vimage.txt
and let me know if you have questions so I can fix the doc.
In summary: vimage support for dummynet is not complete yet,
but we are getting there.
Modified:
head/sys/netinet/ipfw/ip_dn_io.c
head/sys/netinet/ipfw/ip_dn_private.h
head/sys/netinet/ipfw/ip_dummynet.c
BR
/Anders H
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