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* Here follows the new kernel dumping infrastructure.phk2002-03-311-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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
* GC the unused einval()phk2002-02-101-11/+0
| | | | Obtained from: ~bde/sys.dif.gz
* KSE Milestone 2julian2001-09-121-10/+10
| | | | | | | | | | | | | | Note ALL MODULES MUST BE RECOMPILED make the kernel aware that there are smaller units of scheduling than the process. (but only allow one thread per process at this time). This is functionally equivalent to teh previousl -current except that there is a thread associated with each process. Sorry john! (your next MFC will be a doosie!) Reviewed by: peter@freebsd.org, dillon@freebsd.org X-MFC after: ha ha ha ha
* Extend kqueue down to the device layer.jlemon2001-02-151-0/+9
| | | | Backwards compatible approach suggested by: peter
* Remove five now unused fields from struct cdevsw. They should neverphk1999-09-251-25/+0
| | | | | | | | have been there in the first place. A GENERIC kernel shrinks almost 1k. Add a slightly different safetybelt under nostop for tty drivers. Add some missing FreeBSD tags
* $Id$ -> $FreeBSD$peter1999-08-281-1/+1
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* Try an fix a couple of dev_t/major/minor etc nits.peter1999-05-121-2/+2
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* * Fix a couple of places in the device pager where an address wasdfr1998-11-081-2/+2
| | | | | | | | | | | truncated to 32 bits. * Change the calling convention of the device mmap entry point to pass a vm_offset_t instead of an int for the offset allowing devices with a larger memory map than (1<<32) to be supported on the alpha (/dev/mem is one such). These changes are required to allow the X server to mmap the various I/O regions used for device port and memory access on the alpha.
* Moved `nx' functions to the one place where they are used (su.c).bde1998-08-201-78/+1
| | | | | | | They shouldn't be used there either. They should have gone away about 3 years ago when the statically initialized devswitches went away, but su.c unfortunately still frobs the cdevswitch in the old way.
* This commit fixes various 64bit portability problems required fordfr1998-06-071-3/+3
| | | | | | | | | | FreeBSD/alpha. The most significant item is to change the command argument to ioctl functions from int to u_long. This change brings us inline with various other BSD versions. Driver writers may like to use (__FreeBSD_version == 300003) to detect this change. The prototype FreeBSD/alpha machdep will follow in a couple of days time.
* Zap nxselect and noselect.peter1997-09-141-25/+1
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* Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are notpeter1997-02-221-1/+1
| | | | ready for it yet.
* This is the kernel Lite/2 commit. There are some requisite userlanddyson1997-02-101-0/+11
| | | | | | | | | | | | | | | changes, so don't expect to be able to run the kernel as-is (very well) without the appropriate Lite/2 userland changes. The system boots and can mount UFS filesystems. Untested: ext2fs, msdosfs, NFS Known problems: Incorrect Berkeley ID strings in some files. Mount_std mounts will not work until the getfsent library routine is changed. Reviewed by: various people Submitted by: Jeffery Hsu <hsu@freebsd.org>
* Make the long-awaited change from $Id$ to $FreeBSD$jkh1997-01-141-1/+1
| | | | | | | | This will make a number of things easier in the future, as well as (finally!) avoiding the Id-smashing problem which has plagued developers for so long. Boy, I'm glad we're not using sup anymore. This update would have been insane otherwise.
* Replaced bogus macros for dummy devswitch entries by functions.bde1995-11-061-57/+172
| | | | | | | | | | | | | | | | | | These functions went away: enosys (hasn't been used for some time) enxio enodev enoioctl (was used only once, actually for a vop) if_tun.c: Continued cleaning up... conf.h: Probably fixed the type of d_reset_t. It is hard to tell the correct type because there are no non-dummy device reset functions. Removed last vestige of ambiguous sleep message strings.
* Make pcvt and syscons live in the same kernel. If both are enabled, thenbde1995-09-101-1/+79
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | the first one in the config has priority. They can be switched using userconfig(). i386/i386/conf.c: Initialize the shared syscons/pcvt cdevsw entry to `nx'. Add cdevsw registration functions. Use devsw functions of the correct type if they exist. i386/i386/cons.c: Add renamed syscons entry points to constab. i386/i386/cons.h: Declare the renamed syscons entry points. i386/i386/machdep.c: Repeat console initialization after userconfig() in case the current console has become wrong. This depends on cn functions not wiring down anything important. sys/conf.h: Declare new functions. i386/isa/isa.[ch]: Add a function to decide which display driver has priority. Should be done better. i386/isa/syscons.c: Rename pccn* -> sccn*. Initialize CRTC start address in case the previous driver has moved it. i386/isa/syscons.c, i386/isa/pcvt/* Initialize the bogusly shared variable Crtat dynamically in case the stored value was changed by the previous driver. Initialize cdevsw table from a template. Don't grab the console if another display driver has priority. i386/isa/syscons.h, i386/isa/pcvt/pcvt_hdr.h: Don't externally declare now-static cdevsw functions. i386/isa/pcvt/pcvt_hdr.h: Set the sensitive hardware flag so that pcvt doesn't always have lower priority than syscons. This also fixes the "stupid" detection of the display after filling the display with text. i386/isa/pcvt/pcvt_out.c: Don't be confused the off-screen cursor offset 0xffff set by syscons. kern/subr_xxx.c: Add enough nxio/nodev/null devsw functions of the correct type for syscons and pcvt.
* Added $Id$dg1994-08-021-0/+1
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* The big 4.4BSD Lite to FreeBSD 2.0.0 (Development) patch.rgrimes1994-05-251-0/+6
| | | | | Reviewed by: Rodney W. Grimes Submitted by: John Dyson and David Greenman
* BSD 4.4 Lite Kernel Sourcesrgrimes1994-05-241-0/+100
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