Panic in zfs_freebsd_getattr -> zfs_fuid_table_load - avl_find() succeeded inside avl_add() [ACL, 9.1-PRERELEASE]

[Freddie Cash]

(Please forgive the top-post, sent from my phone.)

There's a pool or zfs property that deals with how acl inheritance works,
and how to handle failures (panic, continue, ignore, etc). Don't recall the
exact name but it's along the lines of aclinherit. What's it currently set
to? And how does the system react if you change it?

See the zpool and zfs man pages for info.
On Sep 2, 2012 8:51 PM, "Bryan Drewery" <bryan at shatow.net> wrote:

> Running 9.1-PRERELEASE currently.
>
> Just set this server up, imported the pool from OpenIndiana 151 I
> believe it was.
>
> When I access (simply `ls`) certain files/directories, the system
> panics. These files have ACL properties set on them from the Solaris
> system.
>
> This system has 32gb of ram and only 8gb swap setup, so I do not
> currently have a kernel core dump. It's also practically a production
> machine, so I do not have much leeway in testing on it.
>
> backtrace:
>
> >From running ls(1):
>
>     panic: avl_find() succeeded inside avl_add()
>     avl_add+0x4b
>     zfs_fuid_table_load+0x198
>     zfs_fuid_init+0x12c
>     zfs_fuid_find_by_idx+0xc7
>     zfs_fuid_map_id+0x19
>     zfs_groupmember+0x16
>     zfs_zaccess_aces_check+0x196
>     zfs_zaccess+0xc6
>     zfs_freebsd_getattr+0x1c1
>     vn_stat+0x6a
>     kern_statat_vnhook+0xf9
>     kern_statat+0x15
>     sys_lstat+0x2a
>     amd64_syscall+0x540
>
> At first I thought this was related to MAC / ugidfw, but I am able to
> reproduce with those not compiled in. FWIW, here is a backtrace from
> having that enabled:
>
>     panic: avl_find() succeeded inside avl_add()
>     avl_add+0x4b
>     zfs_fuid_table_load+0x198
>     zfs_fuid_init+0x12c
>     zfs_fuid_find_by_idx+0xc7
>     zfs_fuid_map_id+0x19
>     zfs_groupmember+0x16
>     zfs_zaccess_aces_check+0x196
>     zfs_zaccess+0xc6
>     zfs_freebsd_getattr+0x1c1
>     ugidfw_check_vp+0x6c
>     mac_vnode_check_stat+0xa7
>     vn_stat+0x39
>     kern_statat_vnhook+0xf9
>     kern_statat+0x15
>     sys_stat+0x2a
>     amd64_syscall+0x540
>
>
> Is there some easy way to clear these ACL properties on the files? I do
> not need them.
>
> Any suggestions on how I might fix this or debug this further?
>
>
> Bryan
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