2.6 kernel on Alpha ?

Hello All,

I have a couple of questions regarding 2.6 kernels for Alpha
and also gcc-3.4.4-r1

I have an AS 2000 4/233 running on Gentoo, 2.4.30 SMP-kernel.
Things work fine except I cannot use all the hardware (DAC960).
any case, I was trying to move to 2.6 series kernel (vanilla
sources 2.6.12.5 as picked up by portage)

I am able to compile and boot a UP kernel, but I continuously
get these messages on screen during boot and later in the
system logs

[kernel] sd 0:0:0:0: M_REJECT to send for : 1-2-3-1.

seems to come from the SCSI SYM53C8XX_2 driver which handles the
Symbios 53c810 controller chip. I am using these settings in
the kernel config
CONFIG_SCSI_SYM53C8XX_2=y
CONFIG_SCSI_SYM53C8XX_DMA_ADDRESSING_MODE=0
CONFIG_SCSI_SYM53C8XX_DEFAULT_TAGS=16
CONFIG_SCSI_SYM53C8XX_MAX_TAGS=16
# CONFIG_SCSI_SYM53C8XX_IOMAPPED is not set
(I tried using IOMAPPED and different DMA modes and number of TAGs
also, but the message still shows up)

in 2.4.30, the driver version is sym-2.1.17a and it works fine
(without any of these REJECT messages), while 2.6.12.5, the
driver version is 2.2.x I believe.

does anyone on the list know of an issue which could cause this ?
is the REJECT message a cause for concern ? (system seem to work
fine as before)

also, I have udev, though I have not disabled/removed devfs since
I was not sure if 2.6 is ready for this HW yet

BTW, SMP kernel does not boot. the system goes into a kernel panic
along with machine check and invalid FP emulation instruction etc.

Can 2.6 SMP work on gentoo alpha ? (or only on the newer models ?)

I also see that gcc-3.4.4-r1 is marked stable. can that be used for
kernel, glibc, etc. or its only for specific packages ? (I see that
its slotted)

thanks for any comments, pointers or experiences that you could share

thanks, Mathew


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