Can anyone give me some ideas on where and what to check to help
diagnose a filesystem/SCSI/Jaz drive prob? I have been haveing my
filesystem crash on my Jaz cartridge for no apperant reason. Each time
I get messages listed at the end of this message. I have gone through
my whole system looking for anything that might be the culprit. I have
an Adaptec 2940 UW with the latest BIOS, and am using the latest stable
kernel. It is on IRQ 15, but I have all IDE turned off in my system
BIOS. The internal 68-pin cable is terminated by my harddrive, and the
internal 50-pin cable is terminated with the passive termination block
that comes from Iomega. Termination of the card is set to the LOW byte
off, and HIGH byte on (not-automatic). I have limited the bus speed to
10 Mb to the Jaz drive, and CDROM, and 40 Mb to the card, and my hard
drive. SCAM in enable, but Extended Translation is off. The following
are the settings that I entered when I compiled my kernel: I have run
badblocks -vw /dev/sdb1 1044464 many times, and have never seen an
error. I have also low level formatted this specific cartridge just to
be sure. Lastly, I do not have any problems with this specific
drive/cartridge under heavy usage in Win95, or FreeBSD.
-STEVEl
CONFIG_SCSI_AIC7XXX=y
CONFIG_AIC7XXX_TAGGED_QUEUEING=y
CONFIG_OVERRIDE_CMDS=y
CONFIG_AIC7XXX_CMDS_PER_LUN=64
CONFIG_AIC7XXX_PAGE_ENABLE=y
CONFIG_AIC7XXX_PROC_STATS=y
CONFIG_AIC7XXX_RESET_DELAY=5
Here is the dmesg output that is relative:
aic7xxx: <Adaptec AHA-294X Ultra SCSI host adapter> at PCI 10
aic7xxx: BIOS enabled, IO Port 0xe400, IO Mem 0xe7000000, IRQ 15,
Revision C
aic7xxx: Wide Channel, SCSI ID 7, 16/255 SCBs, QFull 16, QMask 0x1f
scsi0 : Adaptec AHA274x/284x/294x (EISA/VLB/PCI-Fast SCSI) 4.1.1/3.2.1
scsi : 1 host.
scsi0: Scanning channel A for devices.
Vendor: SEAGATE Model: ST32155W Rev: 0596
Type: Direct-Access ANSI SCSI revision: 02
Detected scsi disk sda at scsi0, channel 0, id 0, lun 0
Vendor: PLEXTOR Model: CD-ROM PX-4XCE Rev: 1.01
Type: CD-ROM ANSI SCSI revision: 02
Detected scsi CD-ROM sr0 at scsi0, channel 0, id 3, lun 0
Vendor: iomega Model: jaz 1GB Rev: J.83
Type: Direct-Access ANSI SCSI revision: 02
Detected scsi removable disk sdb at scsi0, channel 0, id 4, lun 0
scsi : detected 1 SCSI cdrom 2 SCSI disks total.
SCSI device sda: hdwr sector= 512 bytes. Sectors= 4197405 [2049 MB] [2.0
GB]
SCSI device sdb: hdwr sector= 512 bytes. Sectors= 2091050 [1021 MB] [1.0
GB]
sdb: Write Protect is off
Here is the /proc filesystem statistics:
Adaptec AIC7xxx driver version: 4.1.1/3.2.1
Compile Options:
AIC7XXX_RESET_DELAY : 5
AIC7XXX_CMDS_PER_LUN : 64
AIC7XXX_TAGGED_QUEUEING: Enabled
AIC7XXX_PAGE_ENABLE : Enabled
AIC7XXX_PROC_STATS : Enabled
Adapter Configuration:
SCSI Adapter: Adaptec AHA-294X Ultra SCSI host adapter
(AIC-788x chipset)
Host Bus: Wide
Base IO: 0xe400
Base IO Memory: 0xe7000000
IRQ: 15
SCBs: Used 87, HW 16, Page 255
Interrupts: 182831
Serial EEPROM: True
Extended Translation: Disabled
SCSI Bus Reset: Enabled
Ultra SCSI: Enabled
Disconnect Enable Flags: 0xffff
Statistics:
CHAN#A (TGT 0 LUN 0):
nxfers 177021 (93604 read;83417 written)
blks(512) rd=1410456; blks(512) wr=719134
< 512 512-1K 1-2K 2-4K 4-8K 8-16K 16-32K 32-64K 64-128K
>128K
Reads: 1 0 40673 7118 18951 17474 3751 3146
2490 0
Writes: 0 0 51747 19549 7095 2154 953 428
1491 0
CHAN#A (TGT 3 LUN 0):
nxfers 5 (5 read;0 written)
blks(512) rd=9; blks(512) wr=0
< 512 512-1K 1-2K 2-4K 4-8K 8-16K 16-32K 32-64K 64-128K
>128K
Reads: 2 1 0 2 0 0 0 0
0 0
Writes: 0 0 0 0 0 0 0 0
0 0
CHAN#A (TGT 4 LUN 0):
nxfers 5641 (2179 read;3462 written)
blks(512) rd=101235; blks(512) wr=417958
< 512 512-1K 1-2K 2-4K 4-8K 8-16K 16-32K 32-64K 64-128K
>128K
Reads: 1 1 1203 0 3 134 8 785
44 0
Writes: 0 0 849 468 278 128 23 40
1676 0
Lastly, these are a sample of the errors that I am getting. I have
gotten many of them, and have only put an example of everyking here for
reading. I have the filesystem mounted with the option:
"check=strict".
messages:Jan 6 00:28:53 bock kernel: EXT2-fs warning (device 08:11):
ext2_free_inode: bit already cleared for inode 140761
messages.2:Dec 21 22:48:41 logues kernel: EXT2-fs error (device 08:11):
ext2_readdir: bad entry in directory #16385: rec_len % 4 != 0 -
offset=0, inode=1701996900, rec_len=29795, name_len=29295
messages.2:Dec 21 22:49:33 logues kernel: EXT2-fs error (device 08:11):
ext2_find_entry: bad entry in directory #16385: rec_len % 4 != 0 -
offset=1024, inode=1701996900, rec_len=29795, name_len=29295
messages.2:Dec 23 17:17:03 logues kernel: EXT2-fs error (device 08:11):
ext2_free_blocks: Freeing blocks not in datazone - block = 1283566791,
count = 1
messages.2:Dec 26 17:40:47 logues kernel: EXT2-fs warning (device
08:11): ext2_rmdir: empty directory has nlink!=2 (3)