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290 commits

Author SHA1 Message Date
David van Moolenbroek 4af032bbfe Kernel interrupt hook management fixes: 
- properly assign unique hook IDs
- after hook removal, remove hook-specific interrupt disable flag
 2009-05-07 14:52:07 +00:00
Ben Gras bb23344283 spurious debug 2009-04-27 16:11:38 +00:00
Ben Gras ef8a741301 set global flag for kernel pages, so tlb entries for kernel aren't thrown 
away on cr3 reload. minor optimization.
 2009-04-23 15:11:16 +00:00
Ben Gras e0f3a5acf1 - enable ipc warnings by default 
- ipc checking code in kernel didn't properly catch the
   sendrec() to self case; added special case check
 - triggered by PM using stock panic() - needs its own _exit()

reported by Joren l'Ami.
 2009-04-17 13:46:37 +00:00
Ben Gras 9647fbc94e moved type and constants for random data to include file; 
added consistency check in random; added source of randomness
internal to random using timing; only retrieve random bins that are full.
 2009-04-02 15:24:44 +00:00
Ben Gras b560a36b20 trace fix contributed by Joren l'Ami 2009-04-02 11:38:23 +00:00
Ben Gras 6ac0338584 Don't declare the cprof buf if CPROFILE isn't on. 2009-02-06 16:31:28 +00:00
Ben Gras 6e86e6706d fix compiler warning; missing memory range check 2009-02-05 13:00:03 +00:00
Ben Gras 113932905f disable interrupts if necessary in kernel debug code to dump all process 
stacks.
 2009-01-29 15:13:54 +00:00
Ben Gras c628f24bc2 moved stacktrace to sysctl, as vmctl is very privileged so can't 
be used outside VM. IS code cleanup. added stacktrace feature to IS.
 2009-01-27 12:54:33 +00:00
Ben Gras 3cc092ff06 . new kernel call sysctl for generic unprivileged system operations; 
now used for printing diagnostic messages through the kernel message
   buffer. this lets processes print diagnostics without sending messages
   to tty and log directly, simplifying the message protocol a lot and
   reducing difficulties with deadlocks and other situations in which
   diagnostics are blackholed (e.g. grants don't work). this makes
   DIAGNOSTICS(_S), ASYN_DIAGNOSTICS and DIAG_REPL obsolete, although tty
   and log still accept the codes for 'old' binaries. This also simplifies
   diagnostics in several servers and drivers - only tty needs its own
   kputc() now.
 . simplifications in vfs, and some effort to get the vnode references
   right (consistent) even during shutdown. m_mounted_on is now NULL
   for root filesystems (!) (the original and new root), a less awkward
   special case than 'm_mounted_on == m_root_node'. root now has exactly
   one reference, to root, if no files are open, just like all other
   filesystems. m_driver_e is unused.
 2009-01-26 17:43:59 +00:00
Ben Gras b784e88026 prototype 2009-01-22 17:09:45 +00:00
Ben Gras 0f41416100 minor cleanup, extra check 2009-01-20 15:47:00 +00:00
Ben Gras ef2867de41 don't print if we're already printing to serial. 2009-01-14 08:54:17 +00:00
Ben Gras b4934f0e12 debug twiddle. 2009-01-14 08:52:50 +00:00
Ben Gras 3ca00a926c don't produce kernel output if serial debug is on. 2009-01-11 23:47:03 +00:00
Ben Gras d5f978411e use #include name for servarname 2009-01-11 23:45:29 +00:00
Ben Gras cd54beeb30 cprofile not conditional 2009-01-09 21:45:27 +00:00
Ben Gras c27008fbcc cprofile not conditional 2009-01-09 21:44:52 +00:00
Ben Gras 22d9444773 don't always time that 2009-01-09 20:58:35 +00:00
Ben Gras 7740d0379c no longer in kernel 2009-01-09 16:35:25 +00:00
Ben Gras 128a0508c0 timing measurement code out of kernel and into library 
(so other components can use it too)
 2009-01-09 16:15:15 +00:00
Ben Gras 23a158b361 don't check senda() buffer if size is 0. 2008-12-21 03:46:42 +00:00
Ben Gras 203eb54a4c make space for first code and data pages if so configured. 2008-12-19 15:46:29 +00:00
Ben Gras b740ff055f if serial output is enabled in the boot monitor, on the first serial line, 
enable serial debug output in the kernel too.
 2008-12-19 13:21:42 +00:00
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