Matthew Dharm said:
> On Mon, Feb 13, 2006 at 08:48:13AM -0700, Dwight Tovey wrote:
>> Matthew Dharm said:
>> > You could also add an inter-command delay (similar to what the code
>> does for Genesys logic devices).
>>
>> Could you expand on this idea? I assume that you mean adding a delay
>> between SCSI commands? Could you point me to the code for this? It's
>> been a long time since I've had to do any real kernel hacking, and
>> that was for networking code in AIX, not Linux. Any pointers would be
>> greatly appreciated.
>
> Look in drivesr/usb/transport.c for the constant USB_VENDOR_ID_GENESYS
> -- it should appear once in that file as part of an if() test for a
> udelay(). As a quick test, just make the udelay() unconditional.
>
Thanks Matt. Found it. Unfortunatly, that doesn't seem to work either.
I even doubled the udelay amount to 220 and tried again. Still failed.
After partitioning, running 'mke2fs -j' and mounting, almost as soon as I
started to copy the file I get:
============================8<----------------------------
ext3_abort called.
EXT3-fs error (device sda1): ext3_journal_start_sb: Detected aborted journal
Remounting filesystem read-only
EXT3-fs error (device sda1): read_block_bitmap: Cannot read block bitmap -
block_group = 1, block_bitmap = 32770
EXT3-fs error (device sda1) in ext3_prepare_write: IO failure
EXT3-fs error (device sda1) in start_transaction: Journal has aborted
cp: writing `/backup/kernels': Input/output error
============================8<----------------------------
and in /var/log/messages I get:
============================8<----------------------------
kernel: Device offlined - not ready after error recovery: host 4 channel 0
id 0 lun 0
kernel: SCSI error : <4 0 0 0> return code = 0x70000
kernel: SCSI error : <4 0 0 0> return code = 0x10000
last message repeated 5 times
============================8<----------------------------
I have one of our engineers looking at taking us back to the 2.4 kernel
for now, but I'm really hoping that we can find a way to make the 2.6
kernel work for us. We are going to have to have 2.6 for some other
projects, and I really don't want to have to support two different kernels
if I can avoid it.
Thanks for your help. If you have any other suggestions, please let me know.
/dwight
--
Dwight N. Tovey
Director of Product Engineering
EmergeCore Networks
email: [EMAIL PROTECTED]
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