some kernel hacking tasks

Antonio Huete Jimenez ahuete.devel at
Mon Oct 1 14:57:13 PDT 2012

Hi Sephe,

Here's a patch for bpf:
Not sure if I'm missing something.

I've tested it with netperf in one ssh session and tcpdump in another
(thanks sjg)

Antonio Huete

2012/9/29 Sepherosa Ziehau <sepherosa at>:
> Hi all,
> I have several kernel hacking tasks; any helping hands are welcome.
> - Replace bpf's mplock w/ its own token
> - Support busdma(9) in some network drivers, the most commonly
> used/available ones:
> o  dc(4)
> o  fxp(4)
> o  vr(4)
> There are actually more drivers that do not support busdma(9):
> find /usr/src/sys/dev/netif -type f -name "*.c" -exec grep -l
> "contigmalloc" "{}" ";"
> I could help to review, test and commit the patch.
> Best Regards,
> sephe
> --
> Tomorrow Will Never Die

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