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List:       linux1394-user
Subject:    how i solved my problem
From:       komplikazione <komplikazione () yahoo ! it>
Date:       2005-01-30 3:03:24
Message-ID: 200501300403.25114.komplikazione () yahoo ! it
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 hi ,

i solve my problem making a file in

 /etc/modprobe.d

and i wrote in 

options sbp2  serialize_io=1

and with 

# hdparm -tT /dev/sda

--------------------------------------------new parameters---------------
/dev/sda:
 Timing cached reads:   1368 MB in  2.01 seconds = 682.06 MB/sec
 Timing buffered disk reads:   30 MB in  3.06 seconds =   9.81 MB/sec


 --------------------------------------------old parameters----------------
 #  hdparm -tT /dev/sda
 
 /dev/sda:
  Timing cached reads:   1472 MB in  2.00 seconds = 735.01 MB/sec
  Timing buffered disk reads:    2 MB in 60.79 seconds =  33.69 kB/sec
 ------------------------------------------------------------------
 
 
and here some more infos when i loaded the module without "serialize_io=1"

 
 ---------------------------------------------------------------------
 #uname -a
 Linux debian 2.6.8.1 #1 Tue Dec 21 02:48:21 CET 2004 i686 GNU/Linux
 ---------------------------------------------------------------------
 
 ---------------------------------------------------------------------
 # lsmod |grep 1394
 raw1394                31084  0
 ohci1394               35204  0
 ieee1394              108728  3 raw1394,ohci1394,sbp2
 -------------------------------------------------------------------
 
 ---------------------------------------------------------------------
 # lsmod |grep scsi
 scsi_mod              122316  4 usb_storage,sr_mod,sbp2,sd_mod
 -------------------------------------------------------------------
 
 ------------------------------------------------------------------
 #lspci -v
 0000:02:07.0 FireWire (IEEE 1394): Texas Instruments TSB43AB22/A 
 IEEE-1394a-2000 Controller (PHY/Link) (prog-if 10 [OHCI])
         Subsystem: Toshiba America Info Systems: Unknown device 0001
         Flags: bus master, medium devsel, latency 64, IRQ 11
         Memory at 20000800 (32-bit, non-prefetchable) [size=2K]
         Memory at 20004000 (32-bit, non-prefetchable) [size=16K]
         Capabilities: [44] Power Management version 2
 ----------------------------------------------------------------
 
 
 ------------------------------------------------------------------
 # dmesg | grep 1394
 ieee1394: Initialized config rom entry `ip1394"
 ohci1394: $Rev: 1223 $ Ben Collins <bcollins@de...>
 ohci1394: fw-host0: OHCI-1394 1.1 (PCI): IRQ=[11]  MMIO=[20000800-20000fff]  
 Max Packet=[2048]
 ieee1394: Node added: ID:BUS[0-00:1023]  GUID[0001a30500050033]
 ieee1394: Host added: ID:BUS[0-01:1023]  GUID[00003900003093c1]
 scsi0 : SCSI emulation for IEEE-1394 SBP-2 Devices
 ieee1394: sbp2: Logged into SBP-2 device
 ieee1394: Node 0-00:1023: Max speed [S400] - Max payload [2048]
 ieee1394: sbp2: aborting sbp2 command
 ieee1394: Node changed: 0-01:1023 -> 0-00:1023
 ieee1394: Node suspended: ID:BUS[0-00:1023]  GUID[0001a30500050033]
 ieee1394: raw1394: /dev/raw1394 device initialized
 ieee1394: hpsb_update_config_rom() is deprecated
 ieee1394: Failed to generate Configuration ROM image for host 0
 ieee1394: Error parsing configrom for node 0-01:1023
 ieee1394: The root node is not cycle master capable; selecting a new root 
node 
 and resetting...
 ieee1394: Node resumed: ID:BUS[0-00:1023]  GUID[0001a30500050033]
 ieee1394: Node changed: 0-00:1023 -> 0-01:1023
 scsi2 : SCSI emulation for IEEE-1394 SBP-2 Devices
 ieee1394: sbp2: Logged into SBP-2 device
 ieee1394: Node 0-00:1023: Max speed [S400] - Max payload [2048]
 ieee1394: sbp2: aborting sbp2 command
 ieee1394: sbp2: aborting sbp2 command
 ieee1394: sbp2: aborting sbp2 command
 ieee1394: sbp2: aborting sbp2 command
 ieee1394: sbp2: aborting sbp2 command
 ieee1394: sbp2: aborting sbp2 command
 ieee1394: sbp2: aborting sbp2 command
 ieee1394: sbp2: aborting sbp2 command
 ieee1394: sbp2: aborting sbp2 command
 --------------------------------------------------------------------------
 
 


 the device in trouble:
 
 http://www.coolerexpress.com/al2hoexen.html 
 
 (combo version)
 
 
I can say it works fine with kernels 2.4---> 2.6.10
 
 thanks


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