problem with my scsi disk

Wed Jun 9 13:26:36 PDT 1999

I am running RedHat 6.0 with kernel 2.2.5.  It is a PentiumPro 200 box
with a 2.1GB SCSI disk and a cd-rom drive.

The problem is the disk got error messages very often.  Here is the dmesg:

============================= dmesg ==================================
[root at linux ~] dmesg | more
Linux version 2.2.5-15 (root at porky.devel.redhat.com) (gcc version
egcs-2.91.66 1
9990314/Linux (egcs-1.1.2 release)) #1 Mon Apr 19 23:00:46 EDT 1999
Detected 199315495 Hz processor.
Console: colour VGA+ 80x25
Calibrating delay loop... 198.66 BogoMIPS
Memory: 62816k/65536k available (996k kernel code, 412k reserved, 928k
data, 60k
 init)
VFS: Diskquotas version dquot_6.4.0 initialized
CPU: Intel Pentium Pro stepping 07
Checking 386/387 coupling... OK, FPU using exception 16 error reporting.
Checking 'hlt' instruction... OK.
POSIX conformance testing by UNIFIX
mtrr: v1.26 (19981001) Richard Gooch (rgooch at atnf.csiro.au)
PCI: PCI BIOS revision 2.10 entry at 0xfb2e0
PCI: Using configuration type 1
PCI: Probing PCI hardware
PCI: 00:00 [8086/1237]: Passive release enable (00)
Linux NET4.0 for Linux 2.2
Based upon Swansea University Computer Society NET3.039
NET4: Unix domain sockets 1.0 for Linux NET4.0.
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP, IGMP
Initializing RT netlink socket
Starting kswapd v 1.5
Detected PS/2 Mouse Port.
Serial driver version 4.27 with MANY_PORTS MULTIPORT SHARE_IRQ enabled
ttyS00 at 0x03f8 (irq = 4) is a 16550A
ttyS01 at 0x02f8 (irq = 3) is a 16550A
pty: 256 Unix98 ptys configured
apm: BIOS version 1.2 Flags 0x07 (Driver version 1.9)
Real Time Clock Driver v1.09
RAM disk driver initialized:  16 RAM disks of 4096K size
PIIX3: IDE controller on PCI bus 00 dev 39
PIIX3: not 100% native mode: will probe irqs later
    ide0: BM-DMA at 0xf000-0xf007, BIOS settings: hda:pio, hdb:pio
    ide1: BM-DMA at 0xf008-0xf00f, BIOS settings: hdc:pio, hdd:pio
Floppy drive(s): fd0 is 1.44M
FDC 0 is a post-1991 82077
md driver 0.90.0 MAX_MD_DEVS=256, MAX_REAL=12
raid5: measuring checksumming speed
   8regs     :   338.328 MB/sec
   32regs    :   244.221 MB/sec
using fastest function: 8regs (338.328 MB/sec)
scsi : 0 hosts.                                                
scsi : detected total.
md.c: sizeof(mdp_super_t) = 4096
Partition check:
RAMDISK: Compressed image found at block 0
autodetecting RAID arrays
autorun ...
... autorun DONE.
VFS: Mounted root (ext2 filesystem).
(scsi0) <Adaptec AIC-7880 Ultra SCSI host adapter> found at PCI 9/0
(scsi0) Wide Channel, SCSI ID=7, 16/255 SCBs
(scsi0) Downloading sequencer code... 413 instructions downloaded
scsi0 : Adaptec AHA274x/284x/294x (EISA/VLB/PCI-Fast SCSI) 5.1.15/3.2.4
       <Adaptec AIC-7880 Ultra SCSI host adapter>
scsi : 1 host.
(scsi0:0:0:0) Synchronous at 20.0 Mbyte/sec, offset 8.
  Vendor:           Model: DFRSS2W           Rev: 4B4B
  Type:   Direct-Access                      ANSI SCSI revision: 02
Detected scsi disk sda at scsi0, channel 0, id 0, lun 0
(scsi0:0:2:0) Synchronous at 10.0 Mbyte/sec, offset 15.
  Vendor: PHILIPS   Model: PCA80SC           Rev: V4-2
  Type:   CD-ROM                             ANSI SCSI revision: 02
Detected scsi CD-ROM sr0 at scsi0, channel 0, id 2, lun 0
Uniform CDROM driver Revision: 2.54
SCSI device sda: hdwr sector= 512 bytes. Sectors= 4404489 [2150 MB] [2.2
GB]
 sda: sda1 sda2 < sda5 >
autodetecting RAID arrays
autorun ...
... autorun DONE.
VFS: Mounted root (ext2 filesystem) readonly.
change_root: old root has d_count=1
Trying to unmount old root ... okay
Freeing unused kernel memory: 60k freed
Adding Swap: 120452k swap-space (priority -1)
SCSI disk error : host 0 channel 0 id 0 lun 0 return code = 2
scsidisk I/O error: dev 08:01, sector 182292
(scsi0:0:0:0) Performing Domain validation.
(scsi0:0:0:0) Successfully completed Domain validation.
eth0: Intel EtherExpress Pro 10/100 at 0x9200, 00:A0:C9:32:92:D3, IRQ 11.
  Board assembly 661949-004, Physical connectors present: RJ45
  Primary interface chip DP83840A PHY #1.
  DP83840 specific setup, setting register 23 to 8462.
  Forcing 10Mbs full-duplex operation.
  General self-test: passed.
  Serial sub-system self-test: passed.
  Internal registers self-test: passed.
  ROM checksum self-test: passed (0x49caa8d6).
  Receiver lock-up workaround activated.
SCSI disk error : host 0 channel 0 id 0 lun 0 return code = 2
scsidisk I/O error: dev 08:01, sector 1162892
(scsi0:0:0:0) Performing Domain validation.
(scsi0:0:0:0) Successfully completed Domain validation.
SCSI disk error : host 0 channel 0 id 0 lun 0 return code = 2
scsidisk I/O error: dev 08:01, sector 2785308
EXT2-fs error (device sd(8,1)): ext2_read_inode: unable to read inode
block - in
ode=348183, block=1392654
(scsi0:0:0:0) Performing Domain validation.
(scsi0:0:0:0) Successfully completed Domain validation.
SCSI disk error : host 0 channel 0 id 0 lun 0 return code = 2
scsidisk I/O error: dev 08:01, sector 290502
================ end of dmesg ==========================

Part of my error logs:

Jun  9 15:17:25 linux kernel: SCSI disk error : host 0 channel 0 id 0 lun
0 return code = 2
Jun  9 15:17:25 linux kernel: scsidisk I/O error: dev 08:01, sector
2785308     Jun  9 15:17:25 linux kernel: EXT2-fs error (device sd(8,1)):
ext2_read_inode: unable to read inode block - inode=348183, block=1392654
Jun  9 15:17:25 linux kernel: (scsi0:0:0:0) Performing Domain validation.
Jun  9 15:17:25 linux kernel: (scsi0:0:0:0) Successfully completed Domain
validation.
Jun  9 15:17:26 linux kernel: SCSI disk error : host 0 channel 0 id 0 lun
0 return code = 2
Jun  9 15:17:26 linux kernel: scsidisk I/O error: dev 08:01, sector 290502
Jun  9 15:30:50 linux PAM_pwdb[740]: (su) session opened for user root by
(uid=501)                                                                 

Can anyone be so kind to help me solve it?  

Sincerely,

Junhua
--
Junhua Wang    New York University, Computer Science
junhua at cs.nyu.edu   (212) 998-3083  251 Mercer St., #422

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