Somwhere in an ''zfs_ioctl'' my code failing. I''m trying to implement my own RAID algorithm and have absolutely no kernel programming experience. ha. I have only made changes in zpool_vdev.c where it determines what RAID_TYPE_CONFIG it is. Of course, this isn''t the only place that needs to be modified. My code makes a zfs_ioctl() and then fails with a ''22'' errno (Invalid device). I have no kernel programming experience and it''s not jumping out at me in user space where it hosed up. Any advice/tips would be appreciated. Especially kernel tracing/debuging advice. Thanks. -- This message posted from opensolaris.org
Hello Brian,
Monday, March 16, 2009, 7:30:33 PM, you wrote:
B> Somwhere in an ''zfs_ioctl'' my code failing.
I''m trying to
B> implement my own RAID algorithm and have absolutely no kernel
B> programming experience. ha. I have only made changes in
B> zpool_vdev.c where it determines what RAID_TYPE_CONFIG it is. Of
B> course, this isn''t the only place that needs to be modified.
B> My code makes a zfs_ioctl() and then fails with a ''22''
errno
B> (Invalid device). I have no kernel programming experience and
it''s
B> not jumping out at me in user space where it hosed up.
B> Any advice/tips would be appreciated. Especially kernel tracing/debuging
advice.
dtrace + fbt shoule help you greatly.
--
Best regards,
Robert Milkowski
http://milek.blogspot.com
Robert Milkowski ?????:> Hello Brian, > > Monday, March 16, 2009, 7:30:33 PM, you wrote: > > B> Somwhere in an ''zfs_ioctl'' my code failing. I''m trying to > B> implement my own RAID algorithm and have absolutely no kernel > B> programming experience. ha. I have only made changes in > B> zpool_vdev.c where it determines what RAID_TYPE_CONFIG it is. Of > B> course, this isn''t the only place that needs to be modified. > > B> My code makes a zfs_ioctl() and then fails with a ''22'' errno > B> (Invalid device). I have no kernel programming experience and it''s > B> not jumping out at me in user space where it hosed up. > > B> Any advice/tips would be appreciated. Especially kernel tracing/debuging advice. > > dtrace + fbt shoule help you greatly. >Or alternatevily you can start with ztest + libzpool with your changes entirely in userland
On Mon, Mar 16, 2009 at 12:30:33PM -0700, Brian wrote:> Somwhere in an ''zfs_ioctl'' my code failing. I''m trying to implement my own RAID algorithm and have absolutely no kernel programming experience. ha. I have only made changes in zpool_vdev.c where it determines what RAID_TYPE_CONFIG it is. Of course, this isn''t the only place that needs to be modified. > > My code makes a zfs_ioctl() and then fails with a ''22'' errno (Invalid device). I have no kernel programming experience and it''s not jumping out at me in user space where it hosed up. > > Any advice/tips would be appreciated. Especially kernel tracing/debuging advice.You can take a look at my patch, where I was prototyping RAID5/RAID6 support to compare performance with RAIDZ1/RAIDZ2. This is far from beeing finished, but creating pools with raid5/raid6 vdevs should work. The patch is also against some old version of ZFS, but might be a good starting point for you: http://people.freebsd.org/~pjd/patches/vdev_raid5.patch Good luck. -- Pawel Jakub Dawidek http://www.wheel.pl pjd at FreeBSD.org http://www.FreeBSD.org FreeBSD committer Am I Evil? Yes, I Am! -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: application/pgp-signature Size: 187 bytes Desc: not available URL: <http://mail.opensolaris.org/pipermail/zfs-code/attachments/20090317/d8d4b902/attachment.bin>