On Thu, Feb 3, 2011 at 11:59 AM, Bjoern A. Zeeb <bzeeb-li...@lists.zabbadoz.net> wrote: > On Thu, 3 Feb 2011, Monthadar Al Jaberi wrote: > >>>>> I don't understand why you saw a CRED_TO_VNET of 0 >>>>> I was under the impression that every process/thread in the system >>>>> would >>>>> be >>>>> on vnet0 >>>>> in a vimage kernel. >>>> >>>> This is how my printf looks like: >>>> struct thread *td = curthread; >>>> struct vnet *v = TD_TO_VNET(td); >>>> struct ucred *cred = CRED_TO_VNET(td->ucred); >>>> struct vnet *td_vnet = td->td_vnet; >>> >>> here's your problem: >>> >>> strcut vnet *vnet = cred->cr_prison->pr_vnet; >> >> When I add CURVNET_SET(CRED_TO_VNET(curthread->td_ucred)); I get a panic >> too... >> But your suggestion works if I do like this: >> curthread->td_vnet = curthread->td_ucred->cr_prison->pr_vnet; >> >> CRED_TO_VNET(curthread->td_ucred) returns NULL > > I wonder how you are building your module and if VIMAGE is properly > defined. If it's not that would explain a lot of things.
I have put options VIMAGE, rebuild both world and kernel. I can create jails with vnet options... I build my module with the standard Makefile for modules: ... KMOD = wtap ... SRCS = if_wtap_module.c if_wtap.c if_medium.c hal.c .include <bsd.kmod.mk> > > >>>> printf("td=%p, td->td_vnet=%p, td->td_ucred=%p, TD_TO_VNET=%p, >>>> CRED_TO_VNET=%p\n", td, td_vnet, td->td_ucred, v, cred); >>>> >>>> I made a fast search in /usr/src for "td_vnet" and found it was >>>> assigned only in >>>> int fork1(td, flags, pages, procp): >>>> #ifdef VIMAGE >>>> td2->td_vnet = NULL; >>>> td2->td_vnet_lpush = NULL; >>>> #endif >>> >>> Nice try. Want another search? Hint: there is this in vnet.h: >>> >>> #define curvnet curthread->td_vnet >>> >>> And then you'll, again, find the CURVNET_SET_* macros. >> >> Thank you > > Something you may find useful as well btw is: > > http://people.freebsd.org/~bz/20100530-02.vnet.9.html weired compiler complains about that there is no <sys/vnet.h>, I include <net/vnet.h> maybe old documentation? > > -- > Bjoern A. Zeeb You have to have visions! > <ks> Going to jail sucks -- <bz> All my daemons like it! > http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/jails.html -- //Monthadar Al Jaberi _______________________________________________ firstname.lastname@example.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-virtualization To unsubscribe, send any mail to "freebsd-virtualization-unsubscr...@freebsd.org"