Date: Thu, 28 Jan 1999 12:47:44 GMT From: mfer@leirianet.pt (M Ferreira) To: freebsd-questions@FreeBSD.ORG Cc: grog@lemis.com Subject: Fatal trap while reading vinum config from drive Message-ID: <36b85b8f.93466878@mail2.leirianet.pt>
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I have 4 disks labeled:
da0s1
a: 204800 0 4.2BSD 0 0 0 # (Cyl. 0 -
143*)
c: 4226725 0 unused 0 0 # (Cyl. 0 -
2955*)
e: 1972224 204800 4.2BSD 0 0 0 # (Cyl. 143*-
1522*)
f: 2049701 2177024 unused 0 0 # (Cyl. 1522*-
2955*)
da1s1
b: 538624 0 swap # (Cyl. 0 -
376*)
c: 4226725 0 unused 0 0 # (Cyl. 0 -
2955*)
e: 3688101 538624 unused 0 0 # (Cyl. 376*-
2955*)
da2s1
c: 8888924 0 unused 0 0 # (Cyl. 0 -
553*)
e: 8888924 0 unused 0 0 # (Cyl. 0 -
553*)
da3s1
c: 8888924 0 unused 0 0 # (Cyl. 0 -
553*)
e: 8888924 0 unused 0 0 # (Cyl. 0 -
553*)
My intention is to have
/dev/da1s1b none swap sw 0
0
/dev/da0s1a / ufs rw 1
1
/dev/da0s1e /usr ufs rw 2
2
/dev/vinum/small /arch ufs rw 2
3
/dev/vinum/big /data ufs rw 2
4
so, i've created the following config:
drive a device /dev/da0s1f
drive b device /dev/da1s1e
drive c device /dev/da2s1e
drive d device /dev/da3s1e
volume small
plex org concat
sd len 2047735b drive a
sd len 3686135b drive b
volume big
plex org striped 128b
sd len 8888055b drive c
sd len 8888055b drive d
disk length values are shortened 265b in order to hold vinum config.
vinum create 'config' gives me:
Configuration summary
Drives: 4 (4 configured)
Volumes: 2 (4 configured)
Plexes: 2 (8 configured)
Subdisks: 4 (16 configured)
D a State: up Device /dev/da0s1f
D b State: up Device /dev/da1s1e
D c State: up Device /dev/da2s1e
D d State: up Device /dev/da3s1e
V small State: up Plexes: 1 Size:
2799 MB
V big State: up Plexes: 1 Size:
8679 MB
P small.p0 C State: up Subdisks: 2 Size:
2799 MB
P big.p0 S State: up Subdisks: 2 Size:
8679 MB
S small.p0.s0 State: up PO: 0 B Size:
999 MB
S small.p0.s1 State: up PO: 999 MB Size:
1799 MB
S big.p0.s0 State: up PO: 0 B Size:
4339 MB
S big.p0.s1 State: up PO: 64 kB Size:
4339 MB
Just to confirm everything is fine, init small.p0 and init big.p0
finish successfully.
newfs -v /dev/vinum/rbig finishes successfully with one minor quirk
wich is:
Warning: 530 sector(s) in last cylinder unallocated
/dev/vinum/rbig: 17776110 sectors in 4340 cylinders of 1
tracks, 4096 sectors
8679.7MB in 272 cyl groups (16 c/g, 32.00MB/g, 7936 i/g)
super-block backups (for fsck -b #) at:
32, 65568, 131104, 196640, 262176, 327712, 393248, 458784, 524320,
589856,
Same thing with newfs -v /dev/vinum/rbig:
Warning: 530 sector(s) in last cylinder unallocated
/dev/vinum/rsmall: 5733870 sectors in 1400 cylinders of 1 tracks,
4096 sectors
2799.7MB in 88 cyl groups (16 c/g, 32.00MB/g, 7936 i/g)
super-block backups (for fsck -b #) at:
32, 65568, 131104, 196640, 262176, 327712, 393248, 458784, 524320,
589856,
mounting /dev/vinum/small and /dev/vinum/big under /arch and /data
goes ok:
Filesystem 1K-blocks Used Avail Capacity Mounted on
/dev/da0s1a 99183 37265 53984 41% /
/dev/da0s1e 955591 763377 115767 87% /usr
procfs 4 4 0 100% /proc
/dev/vinum/small 2778213 1 2555955 0% /arch
/dev/vinum/big 8613858 1 7924749 0% /data
Now the bad news. Without touching $vinum_slices in rc.conf, i tried
to reboot and manually do a vinum read /dev/da0 /dev/da1 /dev/da2
/dev/da3 (compatibility slice naming should be ok, i guess) and i get:
Fatal trap 18: integer divide fault while in kernel mode
How can I diagnose and correct this?
I'm running 3.0-stable cvsuped this weekend.
tia
M Ferreira
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