src-test2/sys/vm, branch release/2.2.2_cvs

This commit was manufactured by cvs2svn to create tag

1997-05-19T10:35:55Z

'RELENG_2_2_2_RELEASE'. This commit was manufactured to restore the state of the 2.2.2-RELEASE image. Releases prior to 5.3-RELEASE are omitting the secure/ and crypto/ subdirs.

Merged from -current: Killed exech_map and do image header reads in a FS-

1997-04-03T06:37:49Z

centric way instead of VM-centric. This appears to fix a hang that Peter was seeing as well as allowing detection of errors during the header read (important for NFS).

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

YAMFC (do spl0() in fork1() and not in kernel processes).

1997-02-13T08:17:32Z

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.

Brought in fixes from current: fix for network/map entry alloc panic.

1997-01-17T19:28:39Z

YAMFC: Make DFLDSIZ and MAXDSIZ fully-supported options.

1996-12-22T23:21:26Z

(This commit is in the RELENG_2_2 branch, in case this ain't obvious from the message. I just don't know yet for sure.)

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.

Mega-merge from -current

1996-11-12T09:11:51Z