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265 commits

Author SHA1 Message Date
Ben Gras
f0000078c3 make kernel leave a page-sized gap in its code and data to not be 
mapped in if so configured.
 2008-12-18 14:30:55 +00:00
Ben Gras
5db1a042c2 stacktrace feature. 2008-12-11 15:33:43 +00:00
Ben Gras
9d096e014b . print kernel stacktrace unconditionally on panic 
. provide a panic() in the kernel for if a library function wants to panic
 2008-12-11 14:23:58 +00:00
Ben Gras
b61687fb1b . VM needs a higher priority than VFS, PM etc 
. introduce FULLVM flag: MEMORY and the initial MFS
   get their own full address spaces, making their stacks
   and heaps not preallocated (well, freed after VM has
   initialized it) and letting them allocate more dynamically.
   MEMORY in particular needs this to map in physical memory
   using its own page table, without having to allocate.
 2008-12-11 14:21:47 +00:00
Ben Gras
034b5c6042 PM_PROC_NR shouldn't be hardcoded as the caller. 2008-12-11 14:18:51 +00:00
Ben Gras
66b161238d function to increase process stack (pointer). used by VM to set up large, 
sparse, non-preallocated heap and stack.
 2008-12-11 14:17:45 +00:00
Ben Gras
e911d44a5c system image processes with full address space are allowed to have pagefaults. 2008-12-11 14:16:40 +00:00
Ben Gras
c4fb567bd5 . replace HZ by runtime system_hz (sysenv variable 'hz') 
. new flag PROC_FULLVM in table indicating process wants full address
   space (this is then created and managed by VM)
 2008-12-11 14:15:23 +00:00
Ben Gras
afef5e0711 . some flags to <minix/const.h> 
. add system_hz for runtime HZ value
 2008-12-11 14:12:52 +00:00
Ben Gras
a74132ec69 fix race condition that can trigger 'enqueue already ready process' panic. 2008-12-11 13:42:37 +00:00
Ben Gras
51fdce1d36 minor fixes 2008-11-19 14:10:33 +00:00
Ben Gras
c078ec0331 Basic VM and other minor improvements. 
Not complete, probably not fully debugged or optimized.
 2008-11-19 12:26:10 +00:00
Philip Homburg
a508e0a03c _function, function -> call_nr 2008-02-25 14:35:11 +00:00
Philip Homburg
73ea967b6c Keep track of error statistics, rate limit debug output, added SYS_MAPDMA. 2008-02-22 12:38:22 +00:00
Philip Homburg
992edfd558 Keep track of various statistics related to IPC and SYSTEM. 2008-02-22 12:36:46 +00:00
Philip Homburg
5996d1de58 Added do_mapdma. 2008-02-22 12:25:59 +00:00
Philip Homburg
f6872f8323 Added ipc_stats_target. 2008-02-22 12:25:44 +00:00
Philip Homburg
4a86b1fea5 Changes to debug output, mostly rate limiting. 2008-02-22 11:00:06 +00:00
Philip Homburg
3c2e122d6d Disabled code to set ipc_stats_target. 2008-02-22 10:58:27 +00:00
Philip Homburg
2679321ba0 Added do_mapdma. 2008-02-22 10:51:37 +00:00
Philip Homburg
594035f13c More verbose (optional) debug output for exceptions. 2008-02-22 10:43:18 +00:00
Philip Homburg
f5389ecf19 Code to dump IPC statistics over a serial line. (Disabled) code to disable the 
FPU.
 2008-02-22 10:40:38 +00:00
Philip Homburg
6ef2e9b866 Added global variable boottime, prototype for do_stime, and table entry for 
SYS_STIME.
 2007-08-07 12:21:40 +00:00
Philip Homburg
fab77fd01f Added do_stime.c, return boot time in do_times.c 2007-08-07 12:20:31 +00:00
Philip Homburg
4f787035ea Removed check for grants that wrap. 2007-08-07 12:19:45 +00:00
Ben Gras
b00f287449 Restore user-owned bits from PSW after a signal handler, instead of 
copying complete PSW after signal handler.

This fixes a psw corruption bug reported by Jens de Smit <jst260@few.vu.nl>.
 2007-05-08 15:43:00 +00:00
Philip Homburg
cab8f526de Fixed some lose ends in the serial line debug dump code. 2007-04-23 15:59:16 +00:00
Philip Homburg
13da935060 Debug dumps over the serial line. Direct output to video memory. 2007-04-23 14:25:17 +00:00
Philip Homburg
c59b23859e Clean and support for asynchronous sends. 2007-04-23 14:24:30 +00:00
Philip Homburg
47233bdf30 Fixed bad boundary condition, support for asynchronous I/O. 2007-04-23 14:23:37 +00:00
Philip Homburg
c7a7c0cb17 Removed some white space. 2007-04-23 13:58:37 +00:00
Philip Homburg
94bc849574 Poll serial line for debug output requests when do_serial_debug is true. 2007-04-23 13:56:27 +00:00
Philip Homburg
8937b6a8de Initialize s_ipc_sendrec. 2007-04-23 13:46:54 +00:00
Philip Homburg
da4bb9144d Removed ECHO. 2007-04-23 13:46:26 +00:00
Philip Homburg
f41429d815 Cleanup. 2007-04-23 13:44:56 +00:00
Philip Homburg
cb3e271b24 Fields for asynchronous sends (s_asyntab and s_asynsize) and for allowed 
sendrecs (s_ipc_sendrec).
 2007-04-23 13:37:30 +00:00
Philip Homburg
6554f3d3dc Added MF_ASYNMSG. 2007-04-23 13:36:38 +00:00
Philip Homburg
8eb27a714e More debug output. Dump kernel process on serial line. Directly put 
text in video memory.
 2007-04-23 13:36:11 +00:00
Philip Homburg
c082f607df Disallow unaligned access to I/O ports. 2007-04-23 13:31:45 +00:00
Philip Homburg
d2cec7db49 Disallow unaligned access to I/O ports. 2007-04-23 13:31:16 +00:00
Philip Homburg
7541e0753b Separate permissions for sendrec. Actually initialize send/sendrec permissions 
for data supplied by rs.
 2007-04-23 13:30:04 +00:00
Philip Homburg
d80e25068c GET_PRIVID: return the ID of a process' privilege structure. 2007-04-23 13:28:14 +00:00
Philip Homburg
2b2d3d5131 Fail unsafe sdevio. Disallow unaligned I/O ports. 2007-04-23 13:22:26 +00:00
Philip Homburg
bc17115a34 Prototypes for exception and stacktrace. Declare additional arguments 
for exception to be able to print nexted exceptions.
 2007-04-23 13:19:25 +00:00
Ben Gras
a2b1a5134b . leave out hardware-fp code from library 
. minor packman usage tweaks
 . kernel feature for printing version number
 . removed some verbose debug messages from vfs/mfs
 2007-04-12 16:45:00 +00:00
Ben Gras
a2d3b518d8 rename svn revision variable to one with underscore, to not pollute 
application namespace
 2007-03-30 15:17:32 +00:00
Ben Gras
7507ebfeca remove debug message 2007-03-30 15:17:03 +00:00
Ben Gras
75f8ceb70e let tty do sys_physcopy; needed for loadfont. 2007-03-22 16:15:33 +00:00
Ben Gras
31c62a7347 include svn revision number in <minix/sys_config.h>, printed by kernel 
at startup, to easily identify releases.
 2007-03-21 13:35:06 +00:00
Ben Gras
bd2ddd5fd4 after enqueue()ing a process, only pick_proc() a new one if the current 
process is not PREEMPTIBLE (or it's not ready, or there isn't a current
process yet). This fixes a case where a process that isn't
PREEMPTIBLE actually gets preempted. (This solves a race condition
between CLOCK and SYSTEM.)
 2007-03-21 09:45:01 +00:00