christos
Sun Sep  1 18:53:08 EDT 1996
Update of /a/cvsroot/src/sys/kern
In directory pain.lcs.mit.edu:/a/tmp/cvs-serv3893

Modified Files:
	sysv_shm.c 
Log Message:
Calling shmdt(2) before calling shmat(2) would crash the system because
p->p_vmspace->vm_shm would be NULL. Protected the rest of the cases where
that might happen too. This was the reason why sunxdoom would panic the
system in SVR4 emulation.