#34 spontaneous reboot/freeze

[Gil Jones]

I currently am using an external Maxtor 80 gig hd on my
Dell latitude c810 primarily to store mp3s to share at
work. I worked through all my installation issues and
have successfully mounted the driver consistently
running kernel 2.4.9-21 with the latest cvs submissions
of ieee1394 running as modules. My problem is thus:
during the normal course of operations, my computer
frequently completely freezes or spontaneously reboots.
When I am actively listening to music the
freezing/reboot is always preceded my stuttering tracks
(like a skipping cd) and then nothing. I have reason
to believe that this is due to something associated
with the firewire drive as it has never occured when I
did not have the drive mounted. There is no information
in /var/logs/messages concerning the freezes/reboots
that I have been able to find. Unplugging the cable
can also cause my machine to freeze, but that it less
of a concern.

dmesg looks pretty normal:

ohci1394_0: OHCI-1394 1.0 (PCI): IRQ=[10]
MMIO=[f8ffc800-f8ffd000] Max Packet=[2048]
ohci1394_0: Physical register received outside of bus
reset sequence
ieee1394: Local host added: node 0:1023, GUID
44:4f:c0:00:3b:73:9c:21
ieee1394: Device added: node 1:1023, GUID
00:10:b9:00:22:00:2a:e8
raw1394: /dev/raw1394 device initialized
ieee1394: sbp2: Driver forced to serialize I/O
(serialize_io = 1)
scsi1 : IEEE-1394 SBP-2 protocol driver
ieee1394: sbp2: SBP-2 device max speed S400 and payload 2KB
Vendor: Maxtor Model: 1394 storage Rev: 60
Type: Direct-Access ANSI SCSI
revision: 02
scsi singledevice 0 0 1 0
scsi singledevice 0 0 2 0
scsi singledevice 0 0 3 0
scsi singledevice 0 0 4 0
scsi singledevice 0 0 5 0
scsi singledevice 0 0 6 0
scsi singledevice 0 0 7 0
scsi singledevice 1 0 1 0
scsi singledevice 1 0 2 0
scsi singledevice 1 0 3 0
scsi singledevice 1 0 4 0
scsi singledevice 1 0 5 0
scsi singledevice 1 0 6 0
scsi singledevice 1 0 7 0
Attached scsi disk sda at scsi1, channel 0, id 0, lun 0
Info fld=0xffffffff (nonstd), Current bh00:00: sense
key Unit Attention
Additional sense indicates Power on,reset,or bus device
reset occurred
SCSI device sda: 160086528 512-byte hdwr sectors (81964 MB)
sda: unknown partition table

another problem may be that the drive is being mounted
as ufs (for compatibility with my os x mac):

mount -t ufs /dev/sda /music -o ro,ufstype=openstep

Any other information I can provide I will. Thanks so
much for your help, this is seriously cutting into my
productivity at work (and working with music is just
not an option).

-Gil

[Ben Collins]

Logged In: YES
user_id=196071

You snipped the part of the dmesg that shows me the revision
of the ohci1394 driver. Can you let me know what that is?

Thanks

[Gil Jones]

Logged In: YES
user_id=507243

So this is the version info:
ohci1394: v0.51 08/08/01 Ben Collins <bcollins@debian.org>

The problem seems to have largely gone away though. There's
only be one freeze and no spontaneous reboots in the last
weeks or so and I've been using the drive pretty steadily.
I can still make either a freeze or a reboot happen by
removing the firewire cord from the laptop, but it doesn't
seem to be happening on it's own like before, though I
didn't really change anything. Still, any information you
could give me would be great.