zfs discuss - Feb 2007 - Need help making lsof work with ZFS

I contacted the author of ''lsof'' regarding the missing ZFS
support. The command works but fails to display any files that are opened by the
process in a ZFS filesystem. He indicates that the required ZFS kernel structure
definitions (header files) are not shipped with the OS. He further indicated
that he rummaged through the OpenSolaris source tree and the files
doesn''t match either of the Solaris 10 Update 2 or 3.

Can one of the ZFS maestros point me in the direction of where these files can
be found. I find it hard to believe that the header files are not shipped with
the OS.

Thanks, any help will be appreciated since ya''ll agree that
''lsof'' is an invaluable tool. Sooner it is available better it
is for ZFS users.
 
 
This message posted from opensolaris.org

On 2/13/07, Anantha N. Srirama <anantha.srirama at cdc.hhs.gov>
wrote:
> I contacted the author of ''lsof'' regarding the missing
ZFS support. The command works but fails to display any files that are opened by
the process in a ZFS filesystem. He indicates that the required ZFS kernel
structure definitions (header files) are not shipped with the OS. He further
indicated that he rummaged through the OpenSolaris source tree and the files
doesn''t match either of the Solaris 10 Update 2 or 3.
>
> Can one of the ZFS maestros point me in the direction of where these files
can be found. I find it hard to believe that the header files are not shipped
with the OS.
>
> Thanks, any help will be appreciated since ya''ll agree that
''lsof'' is an invaluable tool. Sooner it is available better it
is for ZFS users.
I don''t have any S10U2,3 handy to look at, but the b55b I''m
using at
the moment has, according to /var/sadm/install/contents:

/usr/include/libzfs.h [...] SUNWhea
/usr/include/sys/fs/zfs.h [...] SUNWhea

-- 
Eric Enright

I did find zfs.h and libzfs.h (thanks Eric). However, when I try to compile the
latest version (4.87C) of lsof it finds the following files missing: dmu.h
zfs_acl.h zfs_debug.h zfs_rlock.h zil.h spa.h zfs_context.h zfs_dir.h
zfs_vfsops.h zio.h txg.h zfs_ctldir.h zfs_ioctl.h zfs_znode.h zio_impl.h.

I looked on my server which has the full cluster of Solaris 10 Update 2 and
can''t find these files. Thanks.
 
 
This message posted from opensolaris.org

Anantha N. Srirama wrote:
> I did find zfs.h and libzfs.h (thanks Eric). However, when I try to
> compile the latest version (4.87C) of lsof it finds the following
> files missing: dmu.h zfs_acl.h zfs_debug.h zfs_rlock.h zil.h spa.h
> zfs_context.h zfs_dir.h zfs_vfsops.h zio.h txg.h zfs_ctldir.h
> zfs_ioctl.h zfs_znode.h zio_impl.h.
> 
> I looked on my server which has the full cluster of Solaris 10 Update
> 2 and can''t find these files. Thanks.
These files are not shipped with Solaris 10.  You can find them in 
opensolaris: usr/src/uts/common/fs/zfs/sys/

The interfaces in these files are not supported, and may change without 
notice at any time.

--matt

On Wed, Feb 14, 2007 at 01:56:33PM -0700, Matthew Ahrens
wrote:
> These files are not shipped with Solaris 10.  You can find them in 
> opensolaris: usr/src/uts/common/fs/zfs/sys/
> 
> The interfaces in these files are not supported, and may change without 
> notice at any time.
Even if they''re not supported, shouldn''t the header files be
shipped so
people can make sense of kernel data structure types?

Adam

-- 
Adam Leventhal, Solaris Kernel Development       http://blogs.sun.com/ahl

I think so. After all there are features shipped which are not fully
baked/guranteed like the send/receive. Isn''t shipping the header files
better than letting developers guess their structure and possibly make mistakes?
Of course the developer can compile against OpenSolaris source but far easier to
compile against the shipped version from Sun. In this age of FOSS lot of people
expect to download and compile the source and that won''t possible with
tools that interact with ZFS, right?
 
 
This message posted from opensolaris.org