Re: "aborting sbp2 command" expected in kernel.org FireWire maybe

Stefan> Pat LaVarre wrote:
>> How do I build 2.6 Linux from kernel.org that does read at speed without
>> "aborting sbp2 command"?

Stefan> First thing to try is to switch serialization on for sbp2.
Stefan> See the sbp2 documentation at www.linux1394.org.

Didn't help me on my 2.6.8 system when I tried it. I even tried
lowering the max_speed parameter as well.

Stefan> If that does not help, replace linux-2.6/drivers/ieee1394 by
Stefan> the trunk directory from the Subversion repo at linux1394.org.

Tried that, but from what I remember this wasn't any newer than what's
in the 2.6.8 kernel tree.

Stefan> If there are still problems, remove all non-essential kernel
Stefan> options.

Heh, tough to know what's not essential sometimes!

Stefan> The "aborting sbp2 command" errors are serious scsi transport
Stefan> problems which may even lead to data corruption. Alas there is
Stefan> a multitude of possible causes for this type of
Stefan> error. Sometimes people don't experience data corruption, just
Stefan> a considerable slow-down accompanied by these messages. Still,
Stefan> it is a serious error condition AFAIU.

Stefan> That, or the newer kernel reveals a subtle compatibility
Stefan> problem with the device's firmware that was masked in the
Stefan> earlier kernels. However kernel bugs are more likely.

I think the Prolific chipset stinks myself. Not sure about other
chipsets. That's the chipset in my enclosure. More details as I find
time to gather them...

Here's a log of my latest session of trying to write data to an sbp2
enclosure with a 40gb hard drive:

Aug 31 22:57:53 jfsnew kernel: ohci1394: fw-host0: AT dma reset ctx=0, aborting
transmission
Aug 31 22:57:56 jfsnew kernel: sbp2: $Rev: 1219 $ Ben Collins <bcollins@debian.o
rg>
Aug 31 22:57:56 jfsnew kernel: scsi2 : SCSI emulation for IEEE-1394 SBP-2 Device
s
Aug 31 22:57:57 jfsnew kernel: ieee1394: sbp2: Logged into SBP-2 device
Aug 31 22:57:57 jfsnew kernel: Vendor: WDC WD40 Model: 0AW-00DDK1 Rev:
     
Aug 31 22:57:57 jfsnew kernel: Type: Direct-Access ANSI
 SCSI revision: 06
Aug 31 22:57:57 jfsnew kernel: SCSI device sdc: 78165360 512-byte hdwr sectors (
40021 MB)
Aug 31 22:57:57 jfsnew ieee1394.agent[19105]: sbp2: loaded successfully
Aug 31 22:57:57 jfsnew scsi.agent[19153]: disk at /devices/pci0000:00/0000:00:13
.0/0000:02:06.0/0000:03:0b.0/fw-host0/0050770e300033b6/0050770e300033b6-0/host2/
2:0:0:0
Aug 31 22:57:57 jfsnew kernel: SCSI device sdc: drive cache: write through
Aug 31 22:57:57 jfsnew kernel: sdc: unknown partition table
Aug 31 22:57:57 jfsnew kernel: Attached scsi disk sdc at scsi2, channel 0, id 0,
 lun 0
Aug 31 22:57:57 jfsnew kernel: Attached scsi generic sg3 at scsi2, channel 0, id
 0, lun 0, type 0
Aug 31 23:03:41 jfsnew smartd: Device: /dev/sdb, Temperature changed 1 degrees t
o 29 degrees since last reading
Aug 31 23:15:48 jfsnew kernel: kjournald starting. Commit interval 5 seconds
Aug 31 23:15:48 jfsnew kernel: EXT3 FS on sdc, internal journal
Aug 31 23:15:48 jfsnew kernel: EXT3-fs: mounted filesystem with ordered data mod
e.
Aug 31 23:16:46 jfsnew kernel: Write (10) 00 00 c8 46 88 00 00 d8 00
Aug 31 23:16:56 jfsnew kernel: Test Unit Ready 00 00 00 00 00
Aug 31 23:17:46 jfsnew last message repeated 3 times
Aug 31 23:17:46 jfsnew kernel: scsi: Device offlined - not ready after error rec
overy: host 2 channel 0 id 0 lun 0
Aug 31 23:17:46 jfsnew kernel: SCSI error : <2 0 0 0> return code = 0x50000
Aug 31 23:17:46 jfsnew kernel: end_request: I/O error, dev sdc, sector 13125256
Aug 31 23:17:46 jfsnew kernel: lost page write due to I/O error on sdc

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Received on Thu Sep 2 20:06:02 2004