SATA bus freeze with 2.4.21, sii3112A and Intel mb 7505vb, with max_kb_per_request 15

From: Catalin BOIE (util@deuroconsult.ro)
Date: Thu Jun 19 2003 - 05:30:52 EST

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Hi!

Motherboard is:
http://www.intel.com/design/servers/SE7505VB2/index.htm?iid=ipp_srvr+mthrbds_se7505VB2_srvr&

Controller is sii3112a

I activated the trick with max_kb_per_request
Kernel 2.4.21 doesn't enable UDMA on the channels.
If I enable DMA (hdparm) the computer ALMOST freeze.
I can switch the consoles but with a 5 sec delay.
But, seems that the bus freeze. No activity even after 2 minutes.
I had to reboot.

Any ideas?
Thanks!

---
Catalin(ux) BOIE
catab@deuroconsult.ro
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