Hello,
A U2 (2 GB, 2 UltraSPARC-II, 2 73 GB SCSI disks [raid1]) is running
Debian/testing with 2.6.20.3 kernel. This station is used as mail server
and I have seen some freezes. When it freezes, sysrq or stop+A do not
work (not panic nor Oops, only freeze).
I have tested 2.6.18 (from debian), 2.6.20.x without any success. When
I boot with root=/dev/sda4 instead root=/dev/md1, system is more stable
(but not enough to be a mail server :-( ).
With 2.4 kernel and without raid1 (I don't understand why I cannot use
my raid1 volumes with 2.4 kernel...), system is stable and does not
freeze. I have tested hardware with SUNvts (from Solaris 9) and it
sounds good.
With the _same_ kernel, an U60-SMP is stable. The difference between
both kernel are only Sbus versus PCI support _and_ ESP-SCSI version
Symbios support. I suspect a bug in the ESP-SCSI support but I don't
know how investigate. I cannot boot any 2.6.20 with debug option du to a
"address not aligned" message when it boots.
Any suggestion ?
Regards,
JKB
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