Consistant panics trying to access zfs filesystems replicated from Sun/Oracle appliance

[Pawel Jakub Dawidek]

On Thu, Dec 15, 2011 at 02:47:43PM +0200, Andriy Gapon wrote:
> on 15/12/2011 13:59 Karli Sjöberg said the following:
> > Hi all,
> > 
> > with the help of Andriy Gapon, I managed to capture what happened:
> > 
> > # cd /export/Portfolio/ci (TAB)
> > http://oi40.tinypic.com/b3lsog.jpg
> > 
> > # cd /export/Portfolio/cifs_share
> > http://oi42.tinypic.com/6e40op.jpg
> > 
> > # ls /export/Portfolio/cifs_share
> > http://oi42.tinypic.com/23rn60j.jpg
> > 
> > 
> > And this was Andriy´s response:
> > Hmm, so it adds the "FreeBSD" string twice.
> > I am not sure what that means,  consider sharing this result with the public,
> > maybe someone will have a better idea.
> 
> 
> Ah, hah, no wonder there is a panic:
> static __inline ksiddomain_t *
> ksid_lookupdomain(const char *domain)
> {
> 	ksiddomain_t *kd;
> 
> 	kd = kmem_alloc(sizeof(*kd), KM_SLEEP);
> 	strlcpy(kd->kd_name, "FreeBSD", sizeof(kd->kd_name));
> 	return (kd);
> }
> 
> 
> So, no matter what input domain value is, the returned ksiddomain_t is going to
> have kd_name of "FreeBSD".  Basically it means that if an on-disk fuid_nvlist
> has more than one entry then we always are going to hit this panic.  Not good.

Yeah. Karli, could you try the patch below?

	http://people.freebsd.org/~pjd/patches/zfs_sid.h.patch

-- 
Pawel Jakub Dawidek                       http://www.wheelsystems.com
FreeBSD committer                         http://www.FreeBSD.org
Am I Evil? Yes, I Am!                     http://yomoli.com
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