ZFS panic: empty ZFS ACL

[Edward Tomasz Napierała]

Wiadomość napisana przez James R. Van Artsdalen w dniu 2010-11-28, o godz. 15:45:
>  amd64
>  Version String: FreeBSD 9.0-CURRENT #0 r214378M: Sun Nov 28 07:52:25
> CST 2010 root at kraken.housenet.jrv:/usr/obj/usr/src/sys/GENERIC
>  Panic String: empty ZFS ACL
> 
> I got this panic via "ls -l" after copying in a very old pool via zfs
> send/recv: the pool originated on Macintosh ZFS just after Apple first
> released the initial build of that.

Could you try the patch below?

Index: sys/cddl/compat/opensolaris/kern/opensolaris_acl.c
===================================================================
--- sys/cddl/compat/opensolaris/kern/opensolaris_acl.c  (revision 215553)
+++ sys/cddl/compat/opensolaris/kern/opensolaris_acl.c  (working copy)
@@ -105,7 +105,10 @@
        struct acl_entry *entry;
        const ace_t *ace;
 
-       KASSERT(nentries >= 1, ("empty ZFS ACL"));
+       if (nentries < 1) {
+               printf("acl_from_aces: empty ZFS ACL; returning EINVAL.\n");
+               return (EINVAL);
+       }
 
        if (nentries > ACL_MAX_ENTRIES) {
                /*

--
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