Hi Tejun and all -
I have applied the libata-tj-stable patch to the 2.6.22.1 kernel and am
having some issues.
I'm not certain if it is the PMP patches, or my platform.
I have a Silicon Images 3124-2 based PCI-X card (Norco 4618) for my
Alpha system .
I realize this is not the usual test platform and I understand if you
decide to blame it on the platform.
I also have a "StorBox" which is a 5-bay eSATA box based with the Si4276
port multiplier, which is noted to be "quirky" in the README.
The problem arises when I try to create/assemble a linux software raid
using 4 disks (level 6). At the time the system becomes very very slow
- basically unresponsive - I can get an occasional keystroke in on the
console, but the machine is essentially dead.
If I pull the eSATAcable out of the card, the sata_si24 driver does its
thing and the machine comes back to life.
The unit is plugged into the port designated as the first - all drive
bays contain a drive.
I am able to individually address and to format individual drives
without performance issue, but the creation of a raid is deadly ....
Have you heard of such and issue with the 3124-2/4276 combination?
Is anyone else trying this driver on an Alpha?
I have similar such behavior before when using drivers that generate
many unaligned accesses - I only have seen 2 places they occur in
sata_sil24 and have fixed them myself, but that made no difference.
Are there any logs or output that might help? Should I attempt to
upgrade the firmware of the devices?
Thanks,
...tom
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