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freebsd-dev/sys/vm
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Konstantin Belousov 89b57fcf01 Fix for the panic("vm_thread_new: kstack allocation failed") and 
silent NULL pointer dereference in the i386 and sparc64 pmap_pinit()
when the kmem_alloc_nofault() failed to allocate address space. Both
functions now return error instead of panicing or dereferencing NULL.

As consequence, vmspace_exec() and vmspace_unshare() returns the errno
int. struct vmspace arg was added to vm_forkproc() to avoid dealing
with failed allocation when most of the fork1() job is already done.

The kernel stack for the thread is now set up in the thread_alloc(),
that itself may return NULL. Also, allocation of the first process
thread is performed in the fork1() to properly deal with stack
allocation failure. proc_linkup() is separated into proc_linkup()
called from fork1(), and proc_linkup0(), that is used to set up the
kernel process (was known as swapper).

In collaboration with:	Peter Holm
Reviewed by:	jhb
2007-11-05 11:36:16 +00:00
..
default_pager.c /* -> /*- for license, minor formatting changes 2005-01-07 02:29:27 +00:00
device_pager.c Remove comment that is no longer quite true. 2007-08-18 16:41:31 +00:00
memguard.c Improve memguard a bit: 2005-12-30 11:45:07 +00:00
memguard.h Improve memguard a bit: 2005-12-30 11:45:07 +00:00
phys_pager.c Correct a copy and paste'o in phys_pager.c, we are talking about phys here 2007-10-30 14:48:13 +00:00
pmap.h Fix for the panic("vm_thread_new: kstack allocation failed") and 2007-11-05 11:36:16 +00:00
redzone.c Add buffer corruption protection (RedZone) for kernel's malloc(9). 2006-01-31 11:09:21 +00:00
redzone.h Add buffer corruption protection (RedZone) for kernel's malloc(9). 2006-01-31 11:09:21 +00:00
swap_pager.c o Fix panic message: it's swap_pager_putpages() not swap_pager_getpages(). 2007-11-02 20:48:10 +00:00
swap_pager.h - Move 'struct swdevt' back into swap_pager.h and expose it to userland. 2007-02-07 17:43:11 +00:00
uma_core.c Allow recursion on the 'zones' internal UMA zone. 2007-10-11 20:11:27 +00:00
uma_dbg.c Improve canonicalization of copyrights. Order copyrights by order of 2005-07-16 09:51:52 +00:00
uma_dbg.h Improve canonicalization of copyrights. Order copyrights by order of 2005-07-16 09:51:52 +00:00
uma_int.h Update stale comment on protecting UMA per-CPU caches: we now use 2007-05-09 22:53:34 +00:00
uma.h Add uma_set_align() interface, which will be called at most once during 2007-02-11 20:13:52 +00:00
vm_contig.c Change the management of cached pages (PQ_CACHE) in two fundamental 2007-09-25 06:25:06 +00:00
vm_extern.h Fix for the panic("vm_thread_new: kstack allocation failed") and 2007-11-05 11:36:16 +00:00
vm_fault.c Do not dereference NULL pointer. 2007-10-08 20:09:53 +00:00
vm_glue.c Fix for the panic("vm_thread_new: kstack allocation failed") and 2007-11-05 11:36:16 +00:00
vm_init.c Add the vm.exec_map_entries tunable and read-only sysctl, which controls 2005-04-25 19:22:05 +00:00
vm_kern.c When KVA is exhausted, try the vm_lowmem event for the last time before 2007-04-05 20:52:51 +00:00
vm_kern.h The clean_map has been made local to vm_init.c long ago. 2006-11-20 16:23:34 +00:00
vm_map.c Fix for the panic("vm_thread_new: kstack allocation failed") and 2007-11-05 11:36:16 +00:00
vm_map.h Do not drop vm_map lock between doing vm_map_remove() and vm_map_insert(). 2007-08-20 12:05:45 +00:00
vm_meter.c Add a counter for the total number of pages cached and support for 2007-07-27 20:01:22 +00:00
vm_mmap.c Merge first in a series of TrustedBSD MAC Framework KPI changes 2007-10-24 19:04:04 +00:00
vm_object.c The previous revision, updating vm_object_page_remove() for the new page 2007-10-18 23:02:18 +00:00
vm_object.h Change the management of cached pages (PQ_CACHE) in two fundamental 2007-09-25 06:25:06 +00:00
vm_page.c The intent of the freeing the (zeroed) page in vm_page_cache() for 2007-11-05 10:25:12 +00:00
vm_page.h Correct an error of omission in the reimplementation of the page 2007-09-27 04:21:59 +00:00
vm_pageout.c Change the management of cached pages (PQ_CACHE) in two fundamental 2007-09-25 06:25:06 +00:00
vm_pageout.h /* -> /*- for license, minor formatting changes 2005-01-07 02:29:27 +00:00
vm_pageq.c Change the management of cached pages (PQ_CACHE) in two fundamental 2007-09-25 06:25:06 +00:00
vm_pager.c Consider a scenario in which one processor, call it Pt, is performing 2007-08-05 21:04:32 +00:00
vm_pager.h Update some comments to reflect the change from spl-based to lock-based 2005-05-18 22:08:52 +00:00
vm_param.h Fix CTL_VM_NAMES. 2007-10-16 11:32:57 +00:00
vm_phys.c Change the management of cached pages (PQ_CACHE) in two fundamental 2007-09-25 06:25:06 +00:00
vm_phys.h Change the management of cached pages (PQ_CACHE) in two fundamental 2007-09-25 06:25:06 +00:00
vm_unix.c /* -> /*- for license, minor formatting changes 2005-01-07 02:29:27 +00:00
vm_zeroidle.c Rename the kthread_xxx (e.g. kthread_create()) calls 2007-10-20 23:23:23 +00:00
vm.h Retire debug.mpsafevm. None of the architectures supported in CVS require 2006-07-21 23:22:49 +00:00
vnode_pager.c Correct an error of omission in the reimplementation of the page 2007-10-22 06:23:46 +00:00
vnode_pager.h Move the body of vop_stdcreatevobject() over to the vnode_pager under 2005-01-24 21:21:59 +00:00