mbuf revision, testers/comments wanted.

Fabian Keil freebsd-listen at fabiankeil.de
Sun Feb 1 08:06:00 PST 2009


Fabian Keil <freebsd-listen at fabiankeil.de> wrote:

> Jeff Roberson <jroberson at jroberson.net> wrote:
> 
> > http://people.freebsd.org/~jeff/mbuf_ref2.diff
> 
> > I have been experimenting with different revisions to the mbuf api to 
> > improve performance and simplify code.  This patch is the first of
> > several proposed steps towards those goals.  The aim of this patch is
> > two fold;
> 
> > I would appreciate testing feedback from varied workloads to make sure 
> > there are no bugs before I go forward with this.  I have tested only
> > host oriented networking with a few drivers.  It is not anticipated
> > that there will be any significant incompatibilities introduced with
> > this round but there is always that possibility.

> 5)
> Finally, I tested the patch on an IBM ThinPad R51. The kernel
> hangs on boot, the last messages are (hand transcribed):
>
> iwi0: <Intel(R) PRO/Wireless 2200BG> mem 0xc0214000-0xc0214fff irq 11 at device 2.0 on pci2
> iwi0: Reserved 0x1000 bytes for rid 0x10 type 3 at 0xc0214000
> iwi0: could not allocate rx mbuf
> iwi0: could not allocate Rx ring
> bpfdetach: was not attached

Never mind, kernel and user land weren't completely in
sync and this might be related to the recent wlan commits.
I'll retry with an up-to-date user land.

Fabian
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 195 bytes
Desc: not available
Url : http://lists.freebsd.org/pipermail/freebsd-net/attachments/20090201/8ec1cbcf/signature.pgp


More information about the freebsd-net mailing list