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List:       linux1394-user
Subject:    Re: ohci/sbp2 problems on Dell Inspiron 8200
From:       Stefan Richter <stefanr () s5r6 ! in-berlin ! de>
Date:       2003-12-21 16:02:35
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On 20 Dec, Phillip Michael Jordan wrote:
> -Oxford chip based firewire HDD enclosure with 60GB IBM disk
> -Dell Inspiron 8200 laptop, with onboard OHCI IEEE1394 controller
[...]
> ieee1394: unsolicited response packet received - no tlabel match
> ieee1394: unsolicited response packet received - no tlabel match
> ieee1394: sbp2: Reconnected to SBP-2 device
> ieee1394: sbp2: Node 0-00:1023: Max speed [S400] - Max payload [2048]
> EXT2-fs warning: mounting unchecked fs, running e2fsck is recommended
> ieee1394: unsolicited response packet received - no tlabel match

Looks like the packets are brought into wrong order.
Don't ask me why.

> ieee1394: sbp2: Reconnected to SBP-2 device

The sbp2 driver was temporarily "disconnected" from the disk
node...

> ieee1394: sbp2: Node 0-00:1023: Max speed [S400] - Max payload [2048]
> EXT2-fs error (device sd(8,5)): ext2_check_page: bad entry in directory 
> #2: rec_len is smaller than minimal - offset=0, inode=0, rec_len=0, 
> name_len=0
> EXT2-fs warning: mounting unchecked fs, running e2fsck is recommended
> ieee1394: ConfigROM quadlet transaction error for node 0-00:1023
> ieee1394: Node removed: ID:BUS[0-00:1023]  GUID[00d04b31e00d1050]
> ieee1394: sbp2: Logged out of SBP-2 device

Looks like the ieee1394 mid level is now giving up on the disk
node. Hence the sbp2 driver prints the "Logged out" --- however
it did actually not have the opportunity to log out since the mid
level already cut the wire.

> SCSI disk error : host 1 channel 0 id 0 lun 0 return code = 10000
>   I/O error: dev 08:05, sector 13721928

Unfortunately, the scsi mid level does not know yet that the disk
was "disconnected" and hence tries further IO. The scsi mid level
would only know if you issued a rescan-scsi-bus.sh (or if sbp2
was unloaded, or if you had the fine scsi hotplug patch in place,
or if you had kernel 2.6).

I can only guess but I think ohci1394 and the onboard host
controller do not play well together. Or the bus is electrically
unstable, or something...
-- 
Stefan Richter
-=====-=--== ==-- =-=-=
http://arcgraph.de/sr/



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