1
2                              NetBSD ZFS port TODO
3
41) ZVOL part
5
6* zpool cannot be destroyed -> could not destroy 'test': could not unmount datasets
7  We are leaking descriptor after open -> I'm getting EBUSY from spscfs_open.
8
92) ZPL part
10
11* test zfs_vfsops.c and zfs_vnops.c changes
12* xattr and acl support is needed for filesystem permisions ?
13* Check if we are calling vfs_option clear set routines from vfs.c with mnt_updating lock held.
14* Port zfs_replay.c -> DONE
15
163) ZFS part
17
18* ACL support, xattr calls support
19* Snapshots support
20* iSCSI targets support
21* NFSv3, NFSv4 support
22* Samba filesystem support
23* Implement getpages/putpages for zfs, can be done with genfs_* routines but vnode_t need some changes.
24* zfs_rename support, Working but there are some issues with LOCKDEBUG see comment above zfs_rename.
25
26
27                                        NetBSD ZFS Integration TODO
28
29
30Pre-integration tasks.
31
32DONE                why is zfs module deadlocking.
33DONE                try to create a zvol/pool.
34DONE                when creating zvol/pool ok, do minor stress testing.
35DONE                port vfsops and vnodeops. ignore getpages/putpages.
36DONE                lookupname/lookupnameat/nameiat
37DONE                device properties for disk partitions.
38DONE                changes to newfs fsck for zvols.
39DONE                re-read zpool.cache and reconfigure pools.
40DONE                successful unload of the module.
41DONE                implement basic getpages/putpages.
42DONE                callbacks into arc, for reclaim of memory or kernel virual space.
43DONE                prevent module loading if less than 512MB RAM.
44-                   maybe changing the order of arguments for pool_cache constructors.
45DONE                check ioctl handlers for safety (for patch to allow old-style unix ioctl)
46PDONE               port ZFS ACL stuff, enough for POSIX.
47DONE                port zfs_replay.c to NetBSD
48DONE                successfully compile a kernel.
49-                   stress testing.
50DONE                rc.d integration for zfs.
51DONE                fix dangling vnode panic, get zfs unmount to work
52DONE                fix zfs_rename bug -> fix should be sent back to sun
53DONE                syncer/atime issues
54
55Post-integration tasks.
56
57-                    device properties for unique device id (driver:model-revision-serial-etc).
58-                    use device id to locate disks/partitions
59PDONE                port ZFS snapshot / ctldir stuff.
60-                    zfs/nfs integration.
61-                    zfs/iscsi integration.
62-                    native getpages/putpages.
63PDONE zfs v22        update ZFS to latest.
64-                    Implement *at syscalls correctly.
65
66Pre netbsd-6.0 tasks
67-                    More testing especially zvol, vdev and zfs code snapshot will stay disabled
68-                    Get ztest and zdb working
69-                    Get zfs properties working
70
71Post netbsd-6.0 tasks
72-                    Update to latest version
73-                    Harden zfs, test, survive build.sh on zfs
74-                    all Post integration tasks
75-                    Write regression test suite
76-                    RUMP port (might be very good idea.)
77
78
79#######
80## List of Know ZFS bugs/issues
81#######
82
83User-land
84=========
85
861) zpool list ENOMEM error .... fixed in rev 1.3 sunddi.h and rev 1.5 zfs_ioctl.h
872) zfs unmount crash in getmntinfo
883) ztest TXG dmu commit threshold problem ?? Maybe fixed by replacing atomic functions with mutex.
894) ztest vdev resize problem (spa_thread ? )
90
91Kernel
92======
93
941) Faulted zpool after modload (missing ztest/ dmu_objset)
95   ZDB fails to work with because of this problem. This need to be investigated more.
96   see zdb.c#2904
97
982) data lost on filesystem after panic
993) Strange panic during zfs_znode_dmu_init
1004) zpool scrub panic in vdev_open->vdev_disk_open->VOP_IOCTL
1015) zfs set doesn't work -> zfs set dedup=on, zfs set compression=gzip
1026) device nodes in /dev/zvol are not created
103
104
105
106
107
108PDONE = Partialy done.
109