strange behavior of ioapic on PDSME motherboard (was: LSI
hrs at FreeBSD.org
Sun Dec 3 20:05:33 PST 2006
Hiroki Sato <hrs at freebsd.org> wrote
in <20061202.201139.35852412.hrs at allbsd.org>:
hr> Recently I bought Intel Pentium D 945 (3.45GHz), Supermicro PDSME
hr> (Intel E7320), and LSI21320RB (PCI-X SCSI HBA using LSI 53C1030). I
hr> installed 6.2-RC1 to an old PATA HDD and attached it to the
hr> motherboard, and it worked fine. However, I installed 21320RB and
hr> made several SCSI HDDs attached, some strange problems occurred.
It worked when I turned off ioapic and/or acpi. When acpi was
disabled, mpt seemed to work but em did not work due to the UP/DOWN
storm ("vmstat -i" did not display an irq for em0 at that time).
When ioapic was disabled, all devices worked with shared irqs.
So, this is probably an ioapic's issue, not a mpt's, and PDSME
specific I guess. Sorry for the false alarm.
John, are there any big changes of ioapic support between RELENG_6
and CURRENT? I would like your comments to narrow down the cause.
The 7.0-CURRENT November snapshot could probe the mpt (as a very slow
device, though), and both em and mpt worked with acpi/ioapic enabled.
I had a look at the changes in sys/i386/i386, but I am not sure
if which is likely (or not)...
Scott Long <scottl at samsco.org> wrote
in <4571BE11.4030009 at samsco.org>:
sc> Hiroki Sato wrote:
sc> > Any suggestions for what I should do for this problem? I can send
sc> > more detail information from "boot -v" and/or dev.mpt.0.debug=5, but
sc> > not sure which message is important for diagnosing.
sc> Just for comparison, could you go back to FreeBSD 6.0 and see if the
sc> problems remain?
No difference when I tried, but it seems not a mpt problem as I wrote
above. Thanks for the suggestion, anyway.
"Matthew Jacob" <lydianconcepts at gmail.com> wrote
in <7579f7fb0612022224n473c4f42j3a8f829edfc7afe at mail.gmail.com>:
ly> > - 2006 Nov 7-CURRENT snapshot probes the two HDDs case, but the HDDs
ly> > are recognized as very slow devices such as 6MB/s, and accessing
ly> > it makes the box freeze, too.
ly> The 6MB/s thing I'm working on now. I have no clue about the other
ly> issues at this time.
I see. BTW, I confirmed that mpt worked on the November snapshot
except the data transfer rate was 6.6MB/s. Is it worth trying the
| Hiroki SATO
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