Ferris McCormick a écrit :
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On Tue, 20 Mar 2007 21:53:26 +0100
BERTRAND Jo_l <joel.bertrand@xxxxxxxxxxx> wrote:
On Tue, Mar 20, 2007 at 07:01:02PM +0100, mt1@xxxxxxxxxxx wrote:
Hello,
I have posted this message yesterday but I don't see it on the mailing list.
Sorry for the inconvenience if you see it twice...
Today, I have tested hardware with diag-switch? and diag-level true and
a serial console. Nothing to declare...
Original message:
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 ?
I have tried the last 2.6.21-rc4. Same bug.
JKB
This is a problem with U2+kernel-2.6.x generally. Unfortunately, I
have no suggestions nor do I have a solution. I just grit my teeth and
stay with the kernel-2.4.x series, which are completely stable on U2,
so far as I can tell.
What is your U2 configuration ? I have only one U2 and I cannot test on
this station because it's a mail server :-( In fact, I think it should
be interesting to know if this trouble come from SMP, ESP or Sbus
support. It is impossible to build a kernel with debug information (it
does not boot due to a address not aligned...), but I have tested the
same kernel on a U1E (with the same ESP chip and two additional
HappyMeal Ethernet cards on Sbus slots). It perfectly works. Can you try
a 2.6 on U2 without SMP support ?
Regards,
JKB
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