Commit Graph

13 Commits

Author SHA1 Message Date
Poul-Henning Kamp
503abe4540 Improve some on the naming.
Submitted by:	iedowse
2002-06-09 10:57:34 +00:00
Poul-Henning Kamp
d4116af4f9 Give the closet-dev_t we hand to the diskdrivers a name. 2002-05-26 17:35:14 +00:00
Poul-Henning Kamp
3abe4a80a5 Remove the "-class" suffix from classes, they will not be ambiguous.
Sponsored by:	DARPA & NAI Labs.
2002-05-21 19:50:04 +00:00
Poul-Henning Kamp
95c24b31df Make kernel dumps work with GEOM.
Notice that if the device on which the dump is set is destroyed for
any reason, the dump setting is lost.  This in particular will
happen in the case of spoilage.  For instance if you set dump on
ad0s1b and open ad0 for writing, ad0s* will be spoilt and the dump
setting lost.  See geom(4) for more about spoiling.

Sponsored by: DARPA & NAI Labs.
2002-04-19 09:24:12 +00:00
Poul-Henning Kamp
1bdb20a68e Implement DIOCGFRONTSTUFF ioctl which reports how many bytes from the start
of the device magic stuff might occupy.

Sponsored by: DARPA & NAI Labs.
2002-04-09 15:43:32 +00:00
Poul-Henning Kamp
1265c0ce2b In reverence of the 3rd X11 development rule:
3.The only thing worse than generalizing from one example
	is generalizing from no examples at all.

Remove the fwcylinders attribute before anybody gets the idea that we
alone have squared the circle.

Sponsored by:	DARPA & NAI Labs.
2002-04-08 08:00:40 +00:00
Poul-Henning Kamp
2fccec19e9 Centralize EOF handling and improve access controls for bio scheduling.
Sponsored by:	DARPA & NAI Labs
2002-04-04 09:58:20 +00:00
Poul-Henning Kamp
07d77fc610 Move access and orphan member functions from class to geom.
Sponsored by: DARPA & NAI Labs
2002-04-04 09:54:13 +00:00
Poul-Henning Kamp
05660ba819 Initialize a field to cater for ata-raid 2002-04-02 10:09:16 +00:00
Poul-Henning Kamp
81661c94b6 Here follows the new kernel dumping infrastructure.
Caveats:

The new savecore program is not complete in the sense that it emulates
enough of the old savecores features to do the job, but implements none
of the options yet.

I would appreciate if a userland hacker could help me out getting savecore
to do what we want it to do from a users point of view, compression,
email-notification, space reservation etc etc.  (send me email if
you are interested).

Currently, savecore will scan all devices marked as "swap" or "dump" in
/etc/fstab _or_ any devices specified on the command-line.

All architectures but i386 lack an implementation of dumpsys(), but
looking at the i386 version it should be trivial for anybody familiar
with the platform(s) to provide this function.

Documentation is quite sparse at this time, more to come.

Details:

ATA and SCSI drivers should work as the dump formatting code has been
removed.  The IDA, TWE and AAC have not yet been converted.

Dumpon now opens the device and uses ioctl(DIOCGKERNELDUMP) to set
the device as dumpdev.  To implement the "off" argument, /dev/null
is used as the device.

Savecore will fail if handed any options since they are not (yet)
implemented.  All devices marked "dump" or "swap" in /etc/fstab
will be scanned and dumps found will be saved to diskfiles
named from the MD5 hash of the header record.  The header record
is dumped in readable format in the .info file.  The kernel
is not saved.  Only complete dumps will be saved.

All maintainer rights for this code are disclaimed: feel free to
improve and extend.

Sponsored by:   DARPA, NAI Labs
2002-03-31 22:37:00 +00:00
Poul-Henning Kamp
e805e8f0e8 Cave in to tradition and rename "methods" to "classes". 2002-03-26 21:40:06 +00:00
Poul-Henning Kamp
a5b2e75d32 Add a generic and general ioctl pass-through mechanism.
It should now be posible to issue ioctls to SCSI CD drives.
2002-03-16 09:24:19 +00:00
Poul-Henning Kamp
dd84a43c1d First commit of the GEOM subsystem to make it easier for people to
test and play with this.

This is not yet production quality and should be run only on dedicated
test boxes.

For people who want to develop transformations for GEOM there exist a
set of shims to run geom in userland (ask phk@freebsd.org).

Reports of all kinds to: phk@freebsd.org
Please include in report:
        dmesg
        sysctl debug.geomdot
        sysctl debug.geomconf

Known significant limitations:
        no kernel dump facility.
        ioctls severely restricted.

Sponsored by:   DARPA, NAI Labs
2002-03-11 21:42:35 +00:00