(Please tell me if I have sent this bug report to the wrong list)
I am getting this very annoying error regularly, several times a week.
Linux seems to get into an infinite loop. While programs still seem to
run, and I am able to sort of normally reboot the computer from the
console, it is totally unusably slow.
I can see no system in when the bug occurs. I am not using the DVD
drive (hdb) when the bug occurs. I know it has happened when I have
not used hdb after the last reboot, and I *think* it has also happened
when I have not used the DVD since the last time the computer was cold
booted. I *think* it tends to happen when hda is being used for
program loading/swapping.
I get the following error messages written to kern.log, starting from
the first error message:
Feb 20 23:15:17 localhost kernel: hdb: irq timeout: status=0xd0 { Busy }
Feb 20 23:15:27 localhost kernel: ide: failed opcode was: unknown
Feb 20 23:15:27 localhost kernel: hdb: status timeout: status=0xd0 { Busy }
Feb 20 23:15:27 localhost kernel: ide: failed opcode was: unknown
Feb 20 23:15:27 localhost kernel: hdb: drive not ready for command
Feb 20 23:15:27 localhost kernel: hdb: status timeout: status=0xd0 { Busy }
Feb 20 23:15:27 localhost kernel: ide: failed opcode was: unknown
Feb 20 23:15:27 localhost kernel: hdb: drive not ready for command
Feb 20 23:15:33 localhost kernel: hdb: status timeout: status=0xd0 { Busy }
The lines
Feb 20 23:17:30 localhost kernel: ide: failed opcode was: unknown
Feb 20 23:17:30 localhost kernel: hdb: drive not ready for command
Feb 20 23:17:36 localhost kernel: hdb: status timeout: status=0xd0 { Busy }
repeats infinitely.
My computer is a laptop with the hard disk (hda) and DVD-RW drive
(hdb) on the same IDE channel, so I am guessing that the traffic of
hdb errors is choking off access over the shared channel to hda,
causing the slowness.
I got the error in 2.6.19 and 2.6.20. I am not sure which older
kernels gave me the error, but I think it is a relatively new thing. I
am currently running 2.6.16.41 to see if I get the error there, but so
far after 3 days I have not encountered the error again (not long
enough to be certain).
The computer is an ACER Aspire 3613WLMi laptop.
lspci says I have the following ide controller:
00:1f.1 IDE interface: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6
Family) IDE Controller (rev 03)
The laptop has a hard disk and a DVD-rw on a single IDE controller.
R@h /proc/ide/ide0> cat hda/model
HTS424040M9AT00
R@h /proc/ide/ide0> cat hdb/model
Slimtype DVDRW SOSW-833S
R@h ~> hdparm /dev/hda
/dev/hda:
multcount = 0 (off)
IO_support = 0 (default 16-bit)
unmaskirq = 0 (off)
using_dma = 1 (on)
keepsettings = 0 (off)
readonly = 0 (off)
readahead = 256 (on)
geometry = 16383/255/63, sectors = 78140160, start = 0
R@h ~> hdparm /dev/hdb
/dev/hdb:
IO_support = 0 (default 16-bit)
unmaskirq = 0 (off)
using_dma = 1 (on)
keepsettings = 0 (off)
readonly = 0 (off)
readahead = 256 (on)
HDIO_GETGEO failed: Inappropriate ioctl for device
R@h ~>
Please say if you need any further information, or if I can do
anything to track the problem down.
Regards, Thue
Pleace CC me, I am not on this list.
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