Messages in this thread | | | Date | Wed, 10 Mar 2004 08:53:25 -0800 | From | Rick Knight <> | Subject | Re: Dummy network device |
| |
Randy.Dunlap wrote:
>| From: Rick Knight >| >| David S. Miller wrote: >| >| >On Tue, 09 Mar 2004 15:11:48 -0800 >| >Rick Knight <rick@rlknight.com> wrote: >| > >| > >| > >| >>I found the answer. From the archive. Decided to look at dummy.c and >| >>numdummies=1, changed it to numdummies=3 and rebuilt that module. Works >| >>like a charm. >| >> >| >>Question/Suggestion, couldn't this be made an option at configuration? >| >>Kind of like number_of_ptys=256. >| >> >| >> >| > >| >Specify "numdummies=3" on the module load command line. >| > >| > >| >It's supposed to be changeable at module load time, without >| >rebuilding it. Try this e.g.: >| > >| >modprobe dummy numdummies=4 >| > >| >-- >| >~Randy >| > >| > >| Randy, David, >| >| Thanks for the replies. >| >| I did try 'modprobe dummy numdummies=3', however, I didn't quote >| numdummies=3. Are the quote required? Is there a modprobe.conf option? >| Probably "options dummy "numdummies=3". > >No, the quotes are not required. This works for me: >modprobe dummy numdummies=3 > >Using /etc/modprobe.conf also works, as you suggested, but without >the quotation marks: >options dummy numdummies=3 > >Either way shows this in /proc/net/dev: > >dummy0: 0 0 0 0 0 0 0 0 0 > 0 0 0 0 0 0 0 >dummy1: 0 0 0 0 0 0 0 0 0 > 0 0 0 0 0 0 0 >dummy2: 0 0 0 0 0 0 0 0 0 > 0 0 0 0 0 0 0 > > >HTH. >-- >~Randy > > Randy,
I did try 'modprobe dummy numdummies=3' and I didn't work. I got an error and the following showed up in /var/log/messages...
Mar 9 14:42:33 l43w2k021 modprobe: FATAL: Error inserting dummy (/lib/modules/2.6.3/kernel/drivers/net/dummy.ko): Unknown symbol in module, or unknown parameter (see dmesg)
Now it works and I get no error message. I tried numdummies= on another similarly configured machine and it worked first time. So maybe the error message above was caused by a typo when I tried it the first time
Anyway, numdummies= does work as you said.
Thanks, Rick Knight (rick@rlknight.com)
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |