src-test2/sys/vm/vm_map.c, branch release/2.2.8_cvs

This commit was manufactured by cvs2svn to create tag

1999-01-21T00:55:30Z

'RELENG_2_2_8_RELEASE'. This commit was manufactured to restore the state of the 2.2.8-RELEASE image. Releases prior to 5.3-RELEASE are omitting the secure/ and crypto/ subdirs.

MFC 1.89 -> 1.90: Do not consider VM_PROT_OVERRIDE_WRITE to be part

1998-09-22T05:00:48Z

of the protection entry when handling a fault. My recent procfs merge for the "GDB touches executables" problem requires this fix as well.

Merge in the fix for the "GDB touches executables" problem. The

1998-09-22T01:30:55Z

following revisions are included in this merge: 1.89 src/sys/i386/i386/trap.c 1.24,1.25 src/sys/miscfs/procfs/procfs_mem.c 1.32 src/sys/vm/vm_extern.h 1.67 src/sys/vm/vm_fault.c 1.73 src/sys/vm/vm_map.c 1.25 src/sys/vm/vm_map.h 1.8 src/sys/vm/vm_prot.h PR: kern/3475, kern/7858

Bring some fixes from -current into -stable. A couple of them are

1997-11-04T09:02:38Z

map optims from Alan Cox (alc@cs.rice.edu.) Also, there is an incorrectly handled panic and inefficient/improper map upgrade fixed.

1. Fix the vm_page_zero_count accounting. This should improve the

1997-03-25T04:54:38Z

performance of the pre-zero loop. 2. Fix madvise. It had a myriad of bugs, including the potential for system crashes. 3. Improve vm_map handling. This is a result of work done by both (Alan Cox) and me. Earlier versions of the map handling code was very unintelligent about map coalescing. 4. Support a working and closer to POSIX mlock. 5. A couple of performance enhancements that came along for the ride, including changing certain bitfields to flags in vm_map. 6. Bring procfs up to date with respect to the changes. This code has been carefully extracted from -current. Reviewed by: David Greenman

Move forward the inherit fix from copy on write segs from -current.

1997-01-31T04:17:20Z

Submitted by: Alan Cox

Move a missing object (panic fix) in vmspace_fork from -current

1997-01-26T03:14:59Z

into 2.2.

Merge from -current: vm_map_entry leak fix, John's vm_map coallesce fixes,

1996-12-15T09:57:15Z

and changes for dynamically-sized buffers.

Attached vm ddb commands `show map', `show vmochk', `show object',

1996-09-14T11:54:59Z

`show vmopag', `show page' and `show pageq'. Moved all vm ddb stuff to the ends of the vm source files. Changed printf() to db_printf(), `indent' to db_indent, and iprintf() to db_iprintf() in ddb commands. Moved db_indent and db_iprintf() from vm to ddb. vm_page.c: Don't use __pure. Staticized. db_output.c: Reduced page width from 80 to 79 to inhibit double spacing for long lines (there are still some problems if words are printed across column 79).

Fixed the use of the wrong variable in vm_map_madvise.

1996-09-08T23:49:47Z