[341] in linux-scsi channel archive
GW2000-4DX2-66P, BT-946C, MIC-3242, lockups
daemon@ATHENA.MIT.EDU (J.H.N.Chin@reading.ac.uk)
Tue Jul 11 21:20:11 1995
From: J.H.N.Chin@reading.ac.uk
Date: Tue, 11 Jul 1995 12:48:03 +0100
To: linux-scsi@vger.rutgers.edu
Yet another problem...
As per one suggestion, I changed the Auto-SCSI setup:
adapter BIOS supports DOS Space > 1GB := NO
and the fdisk warning that I should set the number of heads
on my hard-drive went away. I still get (and don't understand)
the warning:
Command (m for help): p
Disk /dev/sdb: 64 heads, 32 sectors, 4095 cylinders
Units = cylinders of 2048 * 512 bytes
Device Boot Begin Start End Blocks Id System
/dev/sdb1 * 1 1 201 205808 83 Linux native
/dev/sdb2 202 202 302 103424 82 Linux swap
/dev/sdb3 303 303 1903 1639424 83 Linux native
/dev/sdb4 1024 1904 4095 2244608 83 Linux native
Command (m for help): v
-> Warning: partition 3 overlaps partition 4.
30 unallocated sectors
but am assuming for now that it is harmless.
I received and installed the drive and card on Friday (3 days ago).
Yesterday (Monday), for no apparent reason, the machine suddenly
locked solid while in X (and running NetScape 1.0, but I think this
is irrelevant).
I then spent the rest of the day recovering from fsck deciding
that I didn't really want all those X files, DOS anti-virus
programmes that happened to be stored on the disk, etc.
This morning, I lockscreened and went out of the room. Came back
to a screen full of blurry Bobs: the machine had locked solid again
and the display had frozen.
Power-cycled. fsck fixed things up okay this time.
Logged back in. Looked through the logs, found nothing. Started X.
Machine locked solid again just before it would have displayed the
linux logo.
Power-cycled, etc. Things are currently working okay.
Other information that may be relevant:
a) The disk spec for the Micropolis says:
Operating temperature: 5'C - 30'C
Non-Operating temperature: 40'C - 85'C
Don't know about the rest of the equipment.
I don't think the problem is the drive anyway.
b) The room temperature is currently in the mid-30's and I'm
not allowed to open the windows for `safety' reasons.
c) I have made a hole in the case next the drive and installed an
additional fan to pull air over it. I'll add a fourth for the
other drive when I can get hold of one.
d) I am running the 1.2.11 kernel.
e) I have the PCI bridge optimisation switched on in the kernel.
(I read that this can cause lockups)
f) The machine is an 18 month old Gateway 4DX2-66P with a crumby
motherboard.
g) The buslogic card is using IRQ 10 which is what the motherboard
uses for the `PCI bus IRQ' (whatever that means). Didn't work to
start with, but after I toggled `Enable Device' and `Enable Master'
in the CMOS it seemed happy. (I'd have used another IRQ, but I
seemed to be running short.)
The questions:
1) Has anyone else got a similar setup and experienced lockups
and what did they do about it?
2) Does anyone have any idea what is causing the lockups?
3) Should I expect more?
4) Any suggestions as to what I can do about it?
Perhaps I should note that the machine has never (ever) locked up
before. I have had thrashing problems when netscape decided to eat
all of memory, and I have had FrameMaker (and one or two other X
applications) lock up X (usually by doing a grab and then crashing),
but I've always been able to log in remotely. This is something new.
It's almost like running MS-DOS/Windows...
-jonathan
--
Jonathan H N Chin, 3 kyu | Cybernetics / CompSci | "Respondeo, etsi mutabor"
| University of Reading |
shrchin@reading.ac.uk | Reading, RG6 6AY, UK | < Rosenstock-Huessy >
cybjhnc@cyber.rdg.ac.uk | TEL:(+44) 1734 318612 |
