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
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apm
cbus	Spelling fix for interupt -> interrupt	2007-10-12 06:03:46 +00:00
compile
conf	MFi386: revision 1.476	2007-10-26 13:38:00 +00:00
include	I4B header files were repo-copied from sys/i386/include/ to	2007-07-06 08:05:46 +00:00
linux
pc98	Fix for the panic("vm_thread_new: kstack allocation failed") and	2007-11-05 11:36:16 +00:00