Upgrade from previous (3.0) to current Debian stable (3.1r3) resulted in
periodic scsi disk seeks (approximately 1/sec) on a PIII with default
kernel
Linux version 2.6.8-3-686 ([EMAIL PROTECTED]) (gcc version 3.3.5 (Debian
1:3.3.5-13)) #1 Thu Sep 7 03:38:22 UTC 2006
and with Adaptec 2940U2W controller:
scsi0 : Adaptec AIC7XXX EISA/VLB/PCI SCSI HBA DRIVER, Rev 6.2.36
<Adaptec 2940 Ultra2 SCSI adapter>
aic7890/91: Ultra2 Wide Channel A, SCSI Id=7, 32/253 SCBs
and Quantum drive:
(scsi0:A:6): 80.000MB/s transfers (40.000MHz, offset 31, 16bit)
Vendor: QUANTUM Model: ATLAS IV 9 WLS Rev: 0B0B
Type: Direct-Access ANSI SCSI revision: 03
with the following partitions:
Device Boot Start End Blocks Id System
/dev/sda1 * 1 1067 8570646 83 Linux
/dev/sda2 1068 1116 393592+ 5 Extended
/dev/sda5 1068 1116 393561 82 Linux swap
Swapping appears to be working:
cat /proc/swaps
Filename Type Size Used Priority
/dev/sda5 partition 393552 0 -1
The disk seek frequency does not appear to be effected by turning
swapping off or on.
I couldn't find a bug report on this issue. Also, these frequent seeks
do not occur on two other systems with ide drives.
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