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442 commits

Author SHA1 Message Date
Ben Gras dc9a1bc30c increment nph when printing physical regions; suggested by Guanqun Lu 2009-03-31 14:26:24 +00:00
Ben Gras 3bb80322d9 suppress more mostly-harmless messages. 2009-03-26 16:11:27 +00:00
Ben Gras 2d1c884e35 suppress these noisy, alarming messages. 2009-03-26 15:56:08 +00:00
Ben Gras 8af5f877bc 2009-03-04 17:44:34 +00:00
Ben Gras 3f6e061948 fix error check 2009-03-04 17:38:27 +00:00
Ben Gras 733d6c1ef6 help debugging cause of these sometimes odd calls. 2009-02-17 12:09:59 +00:00
Ben Gras 570b9cd753 Checking wrong inode pointer for refcount in mount (!) 2009-02-17 09:50:02 +00:00
Ben Gras 59e972f074 let drivers allocate memory at 64k physical boundary. 2009-02-12 12:26:08 +00:00
Ben Gras b696823379 stingy stack. 2009-02-06 16:29:00 +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 4984a86f32 don't hang on disappearing filesystem. 2009-01-26 13:02:41 +00:00
Ben Gras 539192f4c3 must be unsigned for base+limit check to to work 2009-01-22 13:05:20 +00:00
Ben Gras 86e7e4828e sanity check function 2009-01-20 13:43:18 +00:00
Ben Gras 45ec30f6af mostly harmless sanity checks. 2009-01-20 13:43:00 +00:00
Ben Gras 4f08002c2c RS needs a bit more memory 2009-01-14 08:55:48 +00:00
Ben Gras 5cbcc11ed3 compile fix for new lock timings 2009-01-12 22:14:43 +00:00
Ben Gras 628ed99101 CPROFILE wants this 2009-01-09 21:11:23 +00:00
Ben Gras d2757d4b73 debug buffer slightly usabler. 2008-12-19 15:19:42 +00:00
Ben Gras 866a4a667e phys addr arg of 0 must be possible for pt_writemap too (instead of meaning 
unmap).
 2008-12-19 13:29:12 +00:00
Ben Gras 8072ef5509 oops, shouldn't be on in svn. 2008-12-18 17:42:29 +00:00
Ben Gras 3121eec6bd . map text (kernel's and processes') in readonly 
. map kernel in non-user
 . don't map in first pages of kernel code and data
   if possible

these first pages could actually be freed but as the
kernel isn't allowed to touch them either we can't reuse
them until VM has totally taken over page table management
and kernel doesn't rely on identity mapping any more.
 2008-12-18 15:35:22 +00:00
Ben Gras 834d9d34e8 Initialize deferred field. This seems to fix a hanging select() bug. 2008-12-17 14:20:08 +00:00
Ben Gras 34d5401ed4 put put_vnode() back where it belongs! 2008-12-16 16:11:24 +00:00
Ben Gras 710f44c4b8 added code for debugging pagefaults 2008-12-16 14:33:53 +00:00
Ben Gras e4e3995fb0 don't force vm to print to serial; don't kill processes when they 
have 'bad' memory ranges (as it's the requestor's fault)
 2008-12-11 17:36:33 +00:00
Ben Gras 70f1f28439 dynamic HZ, library stacktrace 2008-12-11 14:54:42 +00:00
Ben Gras 2024bf0bcf . no more HZ 
. let user processes query HZ
 . no more custom panic()
 2008-12-11 14:49:17 +00:00
Ben Gras ccf70aa989 system_hz replaces HZ 2008-12-11 14:48:05 +00:00
Ben Gras 7d674f4b8e no more HZ; less debugging statements 2008-12-11 14:47:48 +00:00
Ben Gras b9a0d46ea9 debug out 2008-12-11 14:46:46 +00:00
Ben Gras 3287b7f7d8 don't hang old binaries 2008-12-11 14:45:49 +00:00
Ben Gras 5e1bb6eb63 added some code to debug why filesystems won't unmount 2008-12-11 14:45:31 +00:00
Ben Gras e96f86ed8c throw out debugging code. 2008-12-11 14:44:10 +00:00
Ben Gras eeba8ef01f No more HZ. 2008-12-11 14:43:53 +00:00
Ben Gras e9f0c576a3 Open stdin, stdout and stderr only after /etc/rc has executed. (/etc/rc 
executes it itself.) This avoids keeping /dev nodes on the temporary
root filesystem (initial mfs) in use unnecessarily.
 2008-12-11 14:43:25 +00:00
Ben Gras 68d0c4defe - code shared with exec() letting boot-time processes have 
their own fully fledged virtual address space and freeing
   their pre-allocated heap+stack area (necessary to let memory
   driver map in arbitrary areas of memory for /dev/mem without
   sys_vm_map)
 - small optimization preallocating memory on exec
 - finished VR_DIRECT physical mapping code
 2008-12-08 16:43:20 +00:00
Ben Gras 9b33056d2b make allocmem accept and return values in bytes, ramdisk expects this. 2008-11-19 15:40:17 +00:00
Ben Gras 51fdce1d36 minor fixes 2008-11-19 14:10:33 +00:00
Ben Gras 6c92081a5a paged mode is default. 2008-11-19 13:19:37 +00:00
Ben Gras 7b3d952a77 lingering file 2008-11-19 12:38:31 +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
David van Moolenbroek f73b541952 Backport of fix from asynchvfs branch for PM-LOG-VFS-PM deadlock that resulted in VFS panics. 2008-06-24 13:53:03 +00:00
Philip Homburg 4696d74480 Select support for eth by Erik van der Kouwe. 2008-03-12 14:10:21 +00:00
Philip Homburg 9d62f56ea1 SYS_MAPDMAx -> SYS_MAPDMA. 2008-02-25 14:36:28 +00:00
Philip Homburg f82a1c4df7 Fixed include files. 2008-02-25 14:35:54 +00:00
Philip Homburg bc7e3c02a3 Asynchronous select implementation. 2008-02-22 15:46:59 +00:00
Philip Homburg ff7eae2ad8 Private copy of kputc to support asynch communication with log device. 2008-02-22 15:43:33 +00:00
Philip Homburg 2ec762c60c Asynchronous communication with character specials. 2008-02-22 15:41:07 +00:00
Philip Homburg d9a9b727e2 Added dmap_async_driver and dmap_sel_filp fields. Support for asynch character 
drivers (needs cleaning up).
 2008-02-22 15:01:00 +00:00