"

Bjoern Kriews (bkr@cut.de)
Mon, 28 Sep 1998 21:41:27 +0200





attempt to access beyond end of device" - bad values while pt.table is ok
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Hi...

I am experiencing very strange behaviour from my disk subsystem.
root@ncc2:~ # dmesg
attempt to access beyond end of device
08:04: rw=0, want=78648406, limit=7759395

This happens on different disks, apparently only the large ones.
The want values must be uninitialized data - they are far off from
the partition table sizes.

Partition tables are ok, these disks did run for a long time on another
system w 2.1.120-pre1 (before 120 went bad).

This happens for example when I copy a bunch of files to another disk.
cp: I/O Error
Repeating the command can go fine.

Writing a nearly 2G file to tape:
tar: file shrunk - padding with zeros
then those messages.

The tar case is reproducible resulting in different sector numbers.

I want to track this down - it scares the hell out of me,
so I am reporting it before tomorrow I compile 2.1.120 again to see if
this goes
away and also try 123-prewhatwehavethen with aic7xxx-pre12 and report.

System info:

P2 266, 128M, 2.1.123-pre1 UP, aic7xxxx-pre10 (module), libc-5.4.44
1 x 2940U, 1 x AIC7880, 1 x AIC7890

root@ncc2:~ # cat /proc/scsi/scsi
Attached devices:
Host: scsi0 Channel: 00 Id: 05 Lun: 00
Vendor: WDIGTL Model: WDE9100AV Rev: 1.30
Type: Direct-Access ANSI SCSI revision: 02
Host: scsi0 Channel: 00 Id: 10 Lun: 00
Vendor: WDIGTL Model: WDE9100AV Rev: 1.30
Type: Direct-Access ANSI SCSI revision: 02
Host: scsi0 Channel: 00 Id: 12 Lun: 00
Vendor: IBM Model: DDRS-39130W Rev: S92A
Type: Direct-Access ANSI SCSI revision: 02
Host: scsi1 Channel: 00 Id: 01 Lun: 00
Vendor: IBM Model: DCAS-34330 Rev: S65A
Type: Direct-Access ANSI SCSI revision: 02
Host: scsi1 Channel: 00 Id: 02 Lun: 00
Vendor: IBM Model: DCAS-34330 Rev: S65A
Type: Direct-Access ANSI SCSI revision: 02
Host: scsi1 Channel: 00 Id: 03 Lun: 00
Vendor: IBM Model: DCAS-34330 Rev: S65A
Type: Direct-Access ANSI SCSI revision: 02
Host: scsi1 Channel: 00 Id: 04 Lun: 00
Vendor: IBM Model: DCAS-34330 Rev: S65A
Type: Direct-Access ANSI SCSI revision: 02
Host: scsi2 Channel: 00 Id: 01 Lun: 00
Vendor: TOSHIBA Model: CD-ROM XM-3701TA Rev: 3615
Type: CD-ROM ANSI SCSI revision: 02
Host: scsi2 Channel: 00 Id: 04 Lun: 00
Vendor: HP Model: C1533A Rev: 9503
Type: Sequential-Access ANSI SCSI revision: 02
Host: scsi2 Channel: 00 Id: 06 Lun: 00
Vendor: IBM Model: DCAS-32160 Rev: S65A
Type: Direct-Access ANSI SCSI revision: 02

root@ncc2:~ # cat /proc/partitions
major minor #blocks name

8 0 8891602 sda
8 1 329301 sda1
8 2 136552 sda2
8 3 658665 sda3
8 4 7759395 sda4
8 16 8891602 sdb
8 17 72292 sdb1
8 18 8811652 sdb2
8 32 8925000 sdc
8 33 72292 sdc1
8 34 8851815 sdc2
8 48 4233600 sdd
8 49 2096451 sdd1
8 64 4233600 sde
8 65 2096451 sde1
8 80 4233600 sdf
8 81 2096451 sdf1
8 96 4233600 sdg
8 97 4233127 sdg1
8 112 2113362 sdh
8 113 104422 sdh1
8 114 72292 sdh2
8 115 265072 sdh3
8 116 1 sdh4
8 117 393592 sdh5
8 118 393592 sdh6
8 119 586372 sdh7
8 120 152617 sdh8
8 121 136552 sdh9

root@ncc2:~ # /S/HILO/install/sfdisk -l /dev/sda

Disk /dev/sda: 255 heads, 63 sectors, 1106 cylinders
Units = cylinders of 8225280 bytes, blocks of 1024 bytes, counting from
0

Device Boot Start End #cyls #blocks Id System
/dev/sda1 0+ 40 41- 329301 83 Linux native
/dev/sda2 41 57 17 136552+ 82 Linux swap
/dev/sda3 58 139 82 658665 83 Linux native
/dev/sda4 140 1105 966 7759395 83 Linux native

Regards, Bjoern

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