Problems in linux-2.2.18

[Danilo Godec]

Hello!

I'm having a bit of a trouble with an Intel STL2 with integrated AIC7xxx
controller and linux-2.2.18 kernel. Whenever I enable command queueing (I
tried 8 and 24 queue depth), the SCSI bus hangs under load, reporting
stuff like this (a lot of times):

(scsi0:-1,-1,-1) Referenced SCB 37 not valid during SELTO.
        SCSISEQ = 0X5a SEQADDR = 0X8 SSTAT0 = 0X10 SSTAT1 = 0X8a

(scsi0:-1,-1,-1) Referenced SCB 28 not valid during SELTO.
        SCSISEQ = 0X5a SEQADDR = 0X8 SSTAT0 = 0X30 SSTAT1 = 0X9b

Occasionaly, this message pops up too:

(SCSI0:0:4:0)    SAVED_TCL = 0X40, ARG_1 = 0X1C, SEQADDR = 0X11d

If I disable command queing in driver, things seem to be just fine - but I
suspect, this means a considerable performance hit, right?

Oh yeah, I use five IBM DDYS-T36950M drives in a Linux software RAID
configuration.

Thanks,
	Danilo

___________________________________________________________________
|    Danilo Godec    |     Agenda d.o.o.    |   ISP for business  |
|  jr. Syst. Admin   |    Gosposvetska 84   |     WAN networks    |
|  danci at agenda.si   |    si-2000 Maribor   |  Internet/Intranet  |
| tel:+386.2.2340860 |       Slovenija      | Application servers |
| fax:+386.2.2340854 | http://www.agenda.si |  Caldera OpenLinux  |




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