On Sat, Jun 05, 2010 at 06:13:29PM -0400, Joe Talbott wrote:
>
> Please try this patch. I was able to vnconfig a file following the
> vkernel manpage without a panic. This isn't likely a long term
> solution but will hopefully allow you to proceed with your GSoC work
> in a vkernel. If you see this panic again let me know and I'll work
> on implementing the crhold() et al. calls as Matt suggested.
>
Forgot to copy the patch to my mail server. This is the one I
intended to send.
Thanks,
Joe
diff --git a/sys/dev/disk/vn/vn.c b/sys/dev/disk/vn/vn.c
index 95bcf44..f7f216f 100644
--- a/sys/dev/disk/vn/vn.c
+++ b/sys/dev/disk/vn/vn.c
@@ -690,17 +690,19 @@ vniocattach_swap(struct vn_softc *vn, struct vn_ioctl
*vio, cdev_t dev,
int
vnsetcred(struct vn_softc *vn, struct ucred *cred)
{
+ struct ucred *ocred;
char *tmpbuf;
int error = 0;
/*
* Set credits in our softc
*/
-
- if (vn->sc_cred)
- crfree(vn->sc_cred);
+ ocred = vn->sc_cred;
vn->sc_cred = crdup(cred);
+ if (ocred)
+ crfree(ocred);
+
/*
* Horrible kludge to establish credentials for NFS XXX.
*/
