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SubjectRe: ux164 (ruffian) fixes
On Tue, Nov 21, 2000 at 10:47:20AM -0800, Richard Henderson wrote:
> On Tue, Nov 21, 2000 at 06:46:09PM +0300, Ivan Kokshaysky wrote:
> > Interesting, other pyxis machines do not seem to be so sensitive,
> > so I guess some design problems with ux164 motherboard - all this
> > looks pretty much like timing issues.
>
> Wow. Thanks for following through on this.

I can now confirm that I can boot using SCSI disks (the fact that
this was possible for a while into IDE was a life-saver here :-)
a Ruffian (pyxis) Alpha using 2.4.0-test11 kernel and two patches
posted by Ivan (bridges-2.4.0t11.gz and extra ruffian fixes).

Here are fragments from 'dmesg':

....
Booting on Ruffian using machine vector Ruffian from MILO
Command line: bootdevice=sda2 bootfile=/vml240o11.gz root=/dev/sda2
....
SCSI subsystem driver Revision: 1.00
sym53c8xx: at PCI bus 1, device 13, function 0
sym53c8xx: 53c875 detected
sym53c875-0: rev 0x3 on pci bus 1 device 13 function 0 irq 20
sym53c875-0: ID 7, Fast-20, Parity Checking
sym53c875-0: on-chip RAM at 0xa101000
sym53c875-0: restart (scsi reset).
sym53c875-0: Downloading SCSI SCRIPTS.
scsi0 : sym53c8xx - version 1.6b
Vendor: IBM Model: DDRS-39130D Rev: DC1B
Type: Direct-Access ANSI SCSI revision: 02
Vendor: TOSHIBA Model: CD-ROM XM-6201TA Rev: 1037
Type: CD-ROM ANSI SCSI revision: 02
Vendor: IBM Model: DDRS-34560D Rev: DC1B
Type: Direct-Access ANSI SCSI revision: 02
sym53c875-0-<2,0>: tagged command queue depth set to 8
sym53c875-0-<10,0>: tagged command queue depth set to 8
Detected scsi disk sda at scsi0, channel 0, id 2, lun 0
Detected scsi disk sdb at scsi0, channel 0, id 10, lun 0
....
VFS: Mounted root (ext2 filesystem) readonly.
Those who posted "me too" could you please test that this is not
only a fluke on my particular machine?

Thanks a bunch, Ivan. Also thanks are extended to Gerard Roudier who
provided a crucial hint in the moment when we appeared to be completly
stuck. :-)

Michal

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