src/sys/kern/sys_process.c, branch release/2.2.5FreeBSD source treehttps://cgit-dev.freebsd.org/src/atom?h=release%2F2.2.51997-04-27T21:33:31ZMerge from -current: disallow debugger attachment when securelevel > 0.1997-04-27T21:33:31ZAlexander Langeralex@FreeBSD.org1997-04-27T21:33:31Zurn:sha1:26daf24714d6ad2358f40510af75fa9c2fe5b036Remove the now-unnecessary and incorrect wiring of the "other" processes1996-06-02T06:24:27ZJohn Dysondyson@FreeBSD.org1996-06-02T06:24:27Zurn:sha1:4ebce1e9a69b847e06f417f50b78585872394165
page table pages. The pmap layer now handles that fully.
removed:1996-05-02T14:21:14ZPoul-Henning Kampphk@FreeBSD.org1996-05-02T14:21:14Zurn:sha1:e911eafcbae5366e66f9560ca18bf60c5f8157a4
CLBYTES PD_SHIFT PGSHIFT NBPG PGOFSET CLSIZELOG2 CLSIZE pdei()
ptei() kvtopte() ptetov() ispt() ptetoav() &c &c
new:
NPDEPG
Major macro cleanup.
Because of the way that ptrace() now calls procfs routines to read/write1996-03-30T15:02:58ZPeter Wemmpeter@FreeBSD.org1996-03-30T15:02:58Zurn:sha1:2eb80d36fec67f6f5625608d7bd37cd98612081f
the process's memory, it was possible for the procfs_domem() call to
return a residual leftover, but with no errno. Since this is no good for
ptrace which ignored the the residual, remap a leftover amount into an
errno rather than fooling the caller into thinking it was successful when
in fact it was not.
Submitted by: bde (a very long time ago :-)
Major fixes for ptrace()...1996-01-24T18:29:00ZPeter Wemmpeter@FreeBSD.org1996-01-24T18:29:00Zurn:sha1:b0281cef04e99be73e7eeac25e77c54e72657c20
PT_ATTACH/PT_DETACH implemented now and fully operational.
PT_{GET|SET}{REGS|FPREFS} implemented now, using code shared with procfs
PT_{READ|WRITE}_{I|D} now uses code shared with procfs
ptrace opcodes now fully permission checked, including ownerships.
doing an operation to the u-area on a swapped process should no longer
panic.
running gdb as root works for me now, where it didn't before.
general cleanup..
Note, that this has some tightening of permissions/access checks etc.
Some of these may be going too far.. In particular, the "owner" of the
traced process is enforced. The process that created or attached to
the traced process is now the only one that can "do" things to it.
Eliminated many redundant vm_map_lookup operations for vm_mmap.1996-01-19T04:00:31ZJohn Dysondyson@FreeBSD.org1996-01-19T04:00:31Zurn:sha1:bd7e5f992efa91e837b384122c22470815b2be16
Speed up for vfs_bio -- addition of a routine bqrelse to greatly diminish
overhead for merged cache.
Efficiency improvement for vfs_cluster. It used to do alot of redundant
calls to cluster_rbuild.
Correct the ordering for vrele of .text and release of credentials.
Use the selective tlb update for 486/586/P6.
Numerous fixes to the size of objects allocated for files. Additionally,
fixes in the various pagers.
Fixes for proper positioning of vnode_pager_setsize in msdosfs and ext2fs.
Fixes in the swap pager for exhausted resources. The pageout code
will not as readily thrash.
Change the page queue flags (PG_ACTIVE, PG_INACTIVE, PG_FREE, PG_CACHE) into
page queue indices (PQ_ACTIVE, PQ_INACTIVE, PQ_FREE, PQ_CACHE),
thereby improving efficiency of several routines.
Eliminate even more unnecessary vm_page_protect operations.
Significantly speed up process forks.
Make vm_object_page_clean more efficient, thereby eliminating the pause
that happens every 30seconds.
Make sequential clustered writes B_ASYNC instead of B_DELWRI even in the
case of filesystems mounted async.
Fix a panic with busy pages when write clustering is done for non-VMIO
buffers.
Updated to match 1TB filesize changes. Some pindexes were still offsets1995-12-17T06:59:36ZBruce Evansbde@FreeBSD.org1995-12-17T06:59:36Zurn:sha1:63c8f42175145d578afdffb58eb726520c50bafd
and weren't converted. ptrace() was broken.
Removed dead debugging code.1995-12-16T21:43:47ZBruce Evansbde@FreeBSD.org1995-12-16T21:43:47Zurn:sha1:5add07e53c23d64e5fc1e03b8283bed6ee754fafUntangled the vm.h include file spaghetti.1995-12-07T12:48:31ZDavid Greenmandg@FreeBSD.org1995-12-07T12:48:31Zurn:sha1:efeaf95a41820e4eb661a90cfb59a26e36575784Move the process-table stuff to a more suitable file.1995-11-14T09:05:40ZPoul-Henning Kampphk@FreeBSD.org1995-11-14T09:05:40Zurn:sha1:45a4ad1146ef0a5f76222f709dd2103f713c1e0b
Remove filetable stuff from kern_sysctl.c