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Subject: kern/1326: defvs panic: cleaned vnode isn't  
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>Number:         1326
>Category:       kern
>Synopsis:       defvs panic: cleaned vnode isn't
>Confidential:   no
>Severity:       serious
>Priority:       low
>Responsible:    freebsd-bugs
>State:          open
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sat Jun 15 16:20:00 PDT 1996
>Last-Modified:
>Originator:     Gary Palmer
>Organization:
None
>Release:        FreeBSD 2.2-CURRENT i386
>Environment:

NFS diskless machine:

root@slave:~> dmesg
FreeBSD 2.2-CURRENT #3: Sat Jun 15 23:54:30 BST 1996
    gary@palmer.demon.co.uk:/usr/home/gary/cvswork/2.2/test/sys/compile/SLAVE
Calibrating clock(s) relative to mc146818A clock...
i8254 clock: 1193176 Hz
CPU: i486DX (486-class CPU)
real memory  = 8650752 (8448K bytes)
avail memory = 6844416 (6684K bytes)
DEVFS: ready for devices
Probing for devices on the ISA bus:
scprobe: keyboard won't accept RESET command
sc0 at 0x60-0x6f irq 1 on motherboard
sc0: VGA color <16 virtual consoles, flags=0x0>
ed0 at 0x300-0x31f irq 10 maddr 0xe4000 msize 16384 on isa
ed0: address 00:00:c0:5c:46:8e, type WD8013EPC (16 bit) 
sio0 at 0x3f8-0x3ff irq 4 on isa
sio0: type 16550A
sio1 at 0x2f8-0x2ff irq 3 on isa
sio1: type 16550A
sio2 at 0x3e8-0x3ef irq 5 on isa
sio2: type 16550A
sio3 at 0x2e8-0x2ef irq 9 on isa
sio3: type 16550A
lpt0 at 0x378-0x37f irq 7 on isa
lpt0: Interrupt-driven port
lp0: TCP/IP capable interface
lpt1 not found at 0x278
pca0 on motherboard
pca0: PC speaker audio driver
fdc0 at 0x3f0-0x3f7 irq 6 drq 2 on isa
fdc0: NEC 72065B
fd0: 1.44MB 3.5in
npx0 on motherboard
npx0: INT 16 interface
devfs ready to run
NFS SWAP: 10.0.0.1:/usr/swap
NFS ROOT: 10.0.0.1:/mnt/root

>Description:

root@slave:~> ls /devfs
[works]
root@slave:~> ls -l /devfs
(no output to screen).

panic: cleaned vnode isn't.

DDB backtrace:

_Debugger(f011736e) at _Debugger+0x2b
_panic(f012d5fc,f086f980,f086f980,efbffe64,efbffd28) at _panic+0x5a
_getnewvnode(11,f0857e00,f0884a00,efbffd24,f086f980) at _getnewvnode+0xf1
_devfs_dntovn(f086f980,efbffe50,f08e0400,efbffe64,f08ac405) at _devfs_dntovn+0x91
_devfs_lookup(efbffdb4,f08e0400,efbffe64,f08dea80,0) at _devfs_lookup+0x3f3
_lookup(efbffe40,f01c0470,f08dd700,0,31c33f9e) at _lookup+0x2d6
_namei(efbffe40,f01c0470,f08dd700,0,57540) at _namei+0x17c
_lstat(f08dd700,efbfff94,efbfff84,57548,57500) at _lstat+0x4a
_syscall(30027,efbf0027,ffffffff,57500,efbfdb74) at _syscall+0x195
_Xsyscall() at _Xsyscall+0x35
--- syscall 190, eip = 0xa115, ebp = 0xefbfdb74 ---

(sorry, no more info available :-( )

>How-To-Repeat:

Do a ls -l on devfs. It doesn't seem to need any prior activity on the
filesystem.

>Fix:
	
Unknown.

>Audit-Trail:
>Unformatted: