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170 commits

Author SHA1 Message Date
Ben Gras
b5e3e6d18c Two 'dynamic driver' features in FS: 
.  When drivers disappear that have pending select()s, wake up
   those user processes with EAGAIN so that they can retry their
   select() and won't hang forever on it.
.  When drivers re-appear and are mapped into the dmap, run through
   the list of mounted filesystems and re-dev_open() every one (for
   partition tables and such). This can't happen before the driver
   has exec()ced itself, so processes that have fork()ed but not
   exec()ced yet are marked as DMAP_BABY in the dmap table if they
   are dmapped before they are execced. If that happens, the above
   procedure happens after the exec(). If the exec() happens before
   the dmapping, it (the dev_open()ing) happens right away.
 2005-10-20 19:39:32 +00:00
Ben Gras
11146aba3d Newline after startup msg 2005-10-20 18:54:53 +00:00
Ben Gras
4bae163d37 High watermark memory usage feature 2005-10-18 17:21:11 +00:00
Ben Gras
ee5940e097 Print quant as signed number so a 'scheduling defecit' appears as such 2005-10-17 14:06:08 +00:00
Ben Gras
b1ca4d2d42 Check for ZOMBIE flag with findproc 2005-10-17 13:20:07 +00:00
Ben Gras
abd0b53e0a PM: added possibility to copy hole list from alloc.c to outside, for 
misc.c to copy it away by getsysinfo
IS: prints out hole list + stats such as largest contiguous chunk
 2005-10-13 12:48:43 +00:00
Jorrit Herder
5a9dec8bd2 New signal handling behaviour at PM (services can be killed). 
New Shift-F6 dump for RS server at IS.
New getnpid, getnproc, getpproc library calls at PM.
New reincarnation server (basic functionality is there now).
 2005-10-12 15:07:38 +00:00
Ben Gras
46678bdb7f Compile fix 2005-10-12 15:07:26 +00:00
Ben Gras
fc58687905 rw_block is private to cache.c 2005-10-12 15:06:47 +00:00
Ben Gras
2eca6f9374 If processes are blocked on device drivers (returning SUSPEND), 
unblock the processes when the device drivers die.
 2005-10-12 15:01:23 +00:00
Ben Gras
4dfe841667 No driver in dmap is NONE instead of 0. 2005-10-10 14:27:41 +00:00
Ben Gras
86ed54ee94 FS: 
. unmap device drivers from dmap when PM signals they are dead
	. new null-io function (no_dev_io) to fill in for io functions
	  of unmapped drivers
	. driver (process number) of unmapped drivers is NONE instead of
	  0 (a valid process number)

IS:
	. print mutable flag of dmap table too

FS changes require sync() to be done 'manually' (currently by
reboot/shutdown) at shutdown time; could be caught by SIGTERM in
the future.
 2005-10-05 15:38:15 +00:00
Ben Gras
2986c11811 DEV_UNMAP devctl() 
FSDEVUNMAP svrctl()
 2005-10-03 14:17:33 +00:00
Ben Gras
8c4166ee85 Add SIGWINCH signal and functionality in tty and support in PM. 2005-10-03 12:03:57 +00:00
Philip Homburg
42e1dad99c Hack to provide kernel with space for page table. 2005-09-30 12:56:00 +00:00
Philip Homburg
5f7b803dcd Asynchronous connect (for non-blocking socket connect emulation) 2005-09-30 12:44:39 +00:00
Ben Gras
231488dd1c Al's patch 2005-09-23 20:46:17 +00:00
Ben Gras
40ca9c0a8e Als select.c fixes. 2005-09-22 21:17:22 +00:00
Ben Gras
6a44098b96 Added Shift+F5 debug dump - show debug dumps. 2005-09-22 12:21:26 +00:00
Ben Gras
dabaebfeb2 No more F9 2005-09-22 11:41:47 +00:00
Ben Gras
42fbd9aced Andy's formatting changes. 2005-09-11 16:45:46 +00:00
Ben Gras
119f9c714c diagnostics will look funny during setup 2005-09-08 16:00:44 +00:00
Ben Gras
c1de7758b7 Jorrit's fixes after reviewing Al's PM chapter 2005-09-01 10:16:07 +00:00
Philip Homburg
4d3e666043 Less debug output 2005-08-31 14:20:49 +00:00
Ben Gras
a9302ba6e3 Propagate EXTRA_OPTS 2005-08-29 20:00:49 +00:00
Ben Gras
a565c350e1 propagate EXTRA_OPTS 2005-08-29 20:00:39 +00:00
Ben Gras
911ff6a873 Formatting fixes for the book 2005-08-29 16:47:18 +00:00
Jorrit Herder
68da9cc0fe *** empty log message *** 2005-08-25 12:33:09 +00:00
Jorrit Herder
207f4731dc FS cleanup with gcc. 2005-08-25 12:30:43 +00:00
Jorrit Herder
46c8884e36 Cleanup with gcc. Removed unused variables. 
Fixed some uninitialized problems.
 2005-08-25 12:05:09 +00:00
Jorrit Herder
a238c1ba48 Cleanup with gcc. 2005-08-25 12:04:36 +00:00
Ben Gras
4da92e20db Don't keep looping on bogus device message. 2005-08-24 16:57:12 +00:00
Jorrit Herder
b4d7de6ee1 New makefile (src/tools/Makefile) logic: 
- make fresh install: still builds new everything (libraries, services, image)
- make clean image: only builds new boot image (about 5 sec. now!)
 2005-08-23 12:53:35 +00:00
Jorrit Herder
7bf400a709 *** empty log message *** 2005-08-23 11:31:32 +00:00
Ben Gras
d11b2e4b8c Al's double-blank-line removal request 2005-08-22 15:23:47 +00:00
Jorrit Herder
872687ddfc Scheduling updates to the kernel. Sched() function now is single point for 
policy. Actual policy not yet implemented.

PM calculates nice values for processes in boot image.

IS debug dumps improved (Shift+F1-F4).
 2005-08-22 15:14:11 +00:00
Ben Gras
f4402bd129 Al's patch of fri 19 aug 2005 2005-08-22 12:54:11 +00:00
Jorrit Herder
a01645b788 New scheduling code in kernel. Work in progress. 
Round-robin within one priority queue works fine.
Ageing algorithm to be done.
 2005-08-19 16:43:28 +00:00
Ben Gras
b4d4450d2d Al's patch sent mon 15 aug. 2005-08-16 11:37:33 +00:00
Ben Gras
2382b9a1d3 Don't allow arbitrary ram disks being loaded any more, due to funny check. 2005-08-11 11:32:37 +00:00
Ben Gras
abeebb1ac9 Little formatting fix. 2005-08-10 15:18:13 +00:00
Ben Gras
244b1db564 Remove debug messages 2005-08-10 15:13:13 +00:00
Jorrit Herder
79ade04187 Put boot device memory initialization with #ifdef ENABLE_BOOTDEV ... #endif 2005-08-10 09:45:49 +00:00
Jorrit Herder
ab732a37e8 Renamed mm_exit to pm_exit (requested by Al) 
Small cleanup in pm_init.
 2005-08-10 09:37:54 +00:00
Ben Gras
9d92258e55 Minor message improvement 2005-08-09 17:02:27 +00:00
Philip Homburg
2f56b477c0 Fixed mq leak. 2005-08-08 15:49:16 +00:00
Ben Gras
48469b737b Prettier error message in FS if block size too large 2005-08-08 12:17:30 +00:00
Jorrit Herder
941b5ebd1c Fix to device table at FS. 
BIOS and AT installed in /sbin.
Floppy boot fixed.
 2005-08-05 18:57:20 +00:00
Ben Gras
5d2588aedf Al's patch sent Fri aug 5 2005-08-05 16:56:02 +00:00
Jorrit Herder
e396496d8c Fixed small bug in alarm code. 
Kernel timer count was not reset after expiry.
 2005-08-05 16:46:27 +00:00