Hi,
I know this might sound highly improbable but Linux has been locking up
randomly. Heres details of my problem:
Hardware:
- P4 2.8C GHz 800MHz FSB Northwood processor with HT
- 256MB Hynix RAM in single channel dynamic paging mode
- Intel D865GBF motherboard
- 120GB Samsung SATA Harddrive
- 80GB Seagate PATA Harddrive
- 20GB Seagate PATA Harddrive
- Sony DVD writer ( new )
- Netgear WGR311v2 54Mbps wifi card
- Dlink 538TX 10/100Mbps wired network card
- ATI Radeon 7000 AGP card
All hardware is about 2 years old except the one mentioned as new.
Software:
- Fedora Core 2
- Windows Server 2003
- Windows XP
Symptoms:
- The system has been locking up randomly after the addition of the Sony
DVD writer.
- One peculiar symptom that my system has been exhibiting with / without
the writer is that the display doesn't come on at boot up. The
monitor's LED just keeps on blinking. The keyboard doesn't respond at
all and the harddisk LED just keeps on glowing as if it is accessing
something.
- Recently dmesg shows these suspicious entries:
EXT3 FS on sda3, internal journal
device-mapper: 4.3.0-ioctl (2004-09-30) initialised: dm-devel(a)redhat.com
Adding 522104k swap on /dev/sda2. Priority:-1 extents:1
program scsi_unique_id is using a deprecated SCSI ioctl, please convert
it to SG_IO
program scsi_unique_id is using a deprecated SCSI ioctl, please convert
it to SG_IO
....
( 10 msgs repeatedly. No where else are these messages repeated ).
I understand the the swap part but why is it complaining of deprecated
API? As I understand its seeing my SATA HD was a SCSI HD. But I've been
using this harddisk for a while now and I haven't seen these messages
appear - ever! :(
- I've seen only 1 kernel panic and it was related to some SCSI
function. I dont have the exact message but thats all I remember!
Troubleshooting:
- For the first problem, I've observed that after disconnecting the
writer, the system is stable for a few hours now. But can't say with
certainty if it will remain so. Will continue to test.
- I've tried removing all component from the system and keeping the bare
necessities i.e. just the keyboard, monitor, RAM, processor. The system
still exhibits symptom No.2 though randomly. This problem has been
occurring on and off. Initially I thought it might be due to loose
contacts, dust etc... Yet even after cleaning the system and securing
all components properly, the problem persists. So I'm inclined to think
that the new hardware has nothing to do with the problem.
- I've also replaced the harddisk cables just incase but to no avail.
Rather the system works better / stabler with the old ones in place.
- I have only tried troubleshooting on Linux. I have to yet boot into
Windows and see if the same problems occur. In my opinion this can't be
software specific bug which is causing the lockups. I am stumpted on
problem No.1
Any inputs would be appreciated.
Bye! :)
--
Dinesh A. Joshi