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Author SHA1 Message Date
Ben Gras 51596bc608 print who the message is from. 2009-04-02 11:56:50 +00:00
Ben Gras 73ee8b8b99 don't make susp_count negative. 2009-04-02 11:44:26 +00:00
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
Philip Homburg 9df94c5ee8 Use dev_t instead of Dev_t in structures. 2008-02-22 14:54:00 +00:00
Philip Homburg 097d8fee66 Use nonblocking send for reply. Support for asynchronous message passing 
(needs cleaning up).
 2008-02-22 14:53:02 +00:00
Philip Homburg 66c930ef8b Higher NCALLS requires bigger table. New calls are in PM. 2008-02-22 14:51:38 +00:00
Philip Homburg 93ff4c327f Added XDOPEN. 2008-02-22 14:50:41 +00:00
Philip Homburg 9388a27070 Support for O_REOPEN flag and pass the filp numbet to dev_open. 2008-02-22 14:49:02 +00:00
Philip Homburg 7387449b23 Support for suspending on character device open and on drivers that need to 
be restarted.
 2008-02-22 14:47:40 +00:00
Philip Homburg ca91b3b5be New fp_flags. Currently used to signal that is process should be suspended 
a driver is restarted.
 2008-02-22 14:32:23 +00:00
Philip Homburg 6ef71b8198 Pass suspend_reopen flag to dev_io. 2008-02-22 14:26:41 +00:00
Philip Homburg 047cc090e4 Added filp_state for driver recovery and filp_select_flags to store select 
state for character specials that use asynch I/O.
 2008-02-22 14:19:23 +00:00
Philip Homburg 1d7d5aa629 dev_close needs the filp number for asynch I/O, dev_io gets suspend_reopen 
flag to suspend a process until the filedescriptor is re-opened. Added 
dev_reopen, asyn_io, suspended_ep, reopen_reply, asynsend, diag_repl, 
close_filp, close_reply, unpause, select_reply1, select_reply2.
 2008-02-22 14:03:14 +00:00
Philip Homburg e5df351245 Support for blocking open on char specials (due to asynch message passing), 
asynch. close, added close_filp function.
 2008-02-22 13:57:11 +00:00
Philip Homburg 1cffa69d2c Support for I/O MMU: do not re-use a memory segment until the I/O MMU has 
removed it from its map.
 2008-02-21 16:33:34 +00:00
Philip Homburg 3f23bca404 Removed defines not needed by mfs (XPIPE, XLOCK, XPOPEN, XSELECT, DUP_MASK). 2008-02-21 16:22:36 +00:00
Philip Homburg ca8291c815 Support for restricting limiting IPC to a set of endpoints. Not enabled by 
default, pass -i to service. Do not reply to bogus request types. Reply using
sendnb.
 2008-02-21 16:20:22 +00:00
Philip Homburg d9858cfabf Removed some debug output. 2008-02-21 16:08:08 +00:00
Ben Gras 2876d5c4ba Optimization in searching for new zones to allocate contributed 
by Jens de Smit.
 2008-02-06 15:05:57 +00:00
Ben Gras 67d1b67805 exit prototype 2007-10-23 14:19:16 +00:00
Ben Gras e8aec69c7b tweak to panic functions of mfs and vfs. 
. print newline
  . when recursive panic detected, don't simply return, confusing
    the caller, but print a diagnostic and exit
  . don't call sys_exit as this may confuse PM; it should be OK
    to call PM exit() nowadays.
 2007-10-23 14:17:51 +00:00
Ben Gras 21ae963cf1 Fixes two wrong grant return checks and one 'grant leak'. 2007-10-17 10:46:20 +00:00
Ben Gras b6e07e1835 close device if mount fails after device opened. 2007-09-26 15:06:41 +00:00
Ben Gras 38604e4e3a Don't truncate read requests based on v_size; v_size can be stale in the 
case of directories extended by subfilesystem. Rely on subfilesystem to
do read size truncating and return actual i/o size. This fixes bug 81 in
gforge, and unbreaks test 23.
 2007-09-11 15:52:22 +00:00
Philip Homburg ab3062c8c0 REQ_FSTATFS now operates on the root inode (the inode parameter has been 
removed)
 2007-08-17 11:20:59 +00:00
Philip Homburg 9c3f85d14f Better interface for sys_times. 2007-08-16 13:16:26 +00:00
Philip Homburg 4b1cd8c0ec Return EIO if a filedescriptor cannot be re-opened after a driver restart. 
Select now returns such a filedescriptor as ready (instead of EBADF). 
Reply before dev_up in FSSIGNON to avoid the problem that a DEV_OPEN
request is received by a driver that expects a reply from the FSSIGNON.
 2007-08-15 12:53:52 +00:00
Philip Homburg 90fde6e97d cleanup 2007-08-10 13:02:39 +00:00
Philip Homburg 06e1f0da61 Better recovery when req_readsuper fails. 2007-08-10 13:01:38 +00:00
Philip Homburg 57c6f099f2 Removed old debug code. 2007-08-08 15:27:07 +00:00
Philip Homburg e2f06e7c89 Directory check before access check. 2007-08-08 15:26:47 +00:00
Philip Homburg a116b3aa55 To return the right error, check first is an object is a directory (for 
mkdir, rmdir/unlink, mknod), simply pipe code by using v_pipe_rd_pos and
v_pipe_wr_pos directly. Some cleanup work in open.c
 2007-08-08 14:01:36 +00:00
Philip Homburg c2bf536a55 Disable POSIX-required behavior wrt trailing slashes. 2007-08-08 11:40:47 +00:00
Philip Homburg d232b2ef42 Removed invalid consistency check. 2007-08-07 14:27:19 +00:00
Philip Homburg 9c51f0b92a O_EXCL check went missing. 2007-08-07 14:26:56 +00:00
Philip Homburg d01d630727 include "../vfs/dmap.h". 2007-08-07 13:26:25 +00:00
Philip Homburg 1b883a3613 Removed references to stacktrace. 2007-08-07 13:21:55 +00:00
Philip Homburg a318cd291f Somehow request.c got garbled. 2007-08-07 13:12:27 +00:00
Philip Homburg f46319037b New VFS interface 2007-08-07 12:52:47 +00:00
Philip Homburg 2ca2b86a3a Added new interface to VFS. 2007-08-07 12:38:35 +00:00
Philip Homburg a81e82b3da Tell the kernel about the new boottime and don't tell VFS. 
Tell DS about all processes in the boot image. PM_STIME is removed.
Diagnostic for calls to do_getprocnr (DS should be used to get endpoints).
 2007-08-07 12:28:42 +00:00
Philip Homburg fd151245e9 Removed sigaction call. PM tries to talk to DS. DS should not talk to PM. 2007-08-07 12:25:21 +00:00
Philip Homburg 1f04287b3f Removed dmap table. Publish endpoint in DS before calling mapdriver5. 2007-08-07 12:24:06 +00:00
Ben Gras 30ba1ec187 also allow vm_map. 2007-07-11 13:45:06 +00:00
Ben Gras eb4609c108 Don't exit when rebooting. 2007-07-11 13:44:45 +00:00
Philip Homburg 56a68dc32b Hack in service to use RS_START instead of RS_UP. RS reports the use of RS_UP. 2007-05-02 15:20:28 +00:00
Philip Homburg 33d31720a5 Use ds_retrieve_u32 to get the endpoint of inet and of the ethernet drivers. 2007-05-02 11:30:16 +00:00
Philip Homburg 02a229f14d Publish endpoints in ds. 2007-04-27 13:03:33 +00:00
Philip Homburg 93f9bb4a57 Restrict access to rs to root's processes. 2007-04-27 12:27:40 +00:00
Philip Homburg 69ca935251 getpeuid implementation. Get the uid of a process (by endpoint) 2007-04-27 12:21:06 +00:00
Ben Gras 8eb09f6ddc . readall: use lseek64() to read more than 4GB of a device 
. vfs: 64-bit offset support for character device i/o
   (also remove unused dev_bio function)
 . memory: /dev/null and /dev/zero are infinitely large, don't stop
   reading/writing at 4GB
 2007-04-24 13:27:33 +00:00