KATO Takenori 747e915757 Avoid `lock against myself' panic by following operation: ... # mount -t union (or null) dir1 dir2 # mount -t union (or null) dir2 dir1 The function namei in union_mount calls union_root. The upper vnode has been already locked and vn_lock in union_root causes above panic. Add printf's included in `#ifdef DIAGNOSTIC' for EDEADLK cases.		1997-04-19 06:04:13 +00:00
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deadfs	Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not	1997-02-22 09:48:43 +00:00
devfs	Get the declaration of `struct dirent' from <sys/dirent.h>, not from	1997-04-10 15:05:38 +00:00
fdesc	Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not	1997-02-22 09:48:43 +00:00
fifofs	Don't include <sys/ioctl.h> in the kernel. Stage 3: include	1997-03-24 11:37:53 +00:00
kernfs	Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not	1997-02-22 09:48:43 +00:00
nullfs	Avoid `lock against myself' panic by following operation:	1997-04-19 06:04:13 +00:00
portal	Don't #include <sys/fcntl.h> in <sys/file.h> if KERNEL is defined.	1997-03-23 03:37:54 +00:00
procfs	Fix the gdb executable modify problem. Thanks to the detective work	1997-04-06 02:29:45 +00:00
specfs	Don't include <sys/ioctl.h> in the kernel. Stage 1: don't include	1997-03-24 11:25:10 +00:00
umapfs	Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not	1997-02-22 09:48:43 +00:00
union	Avoid `lock against myself' panic by following operation:	1997-04-19 06:04:13 +00:00