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Date:      Fri, 14 Jun 2002 12:24:38 +0200
From:      Holger Kipp <holger.kipp@alogis.com>
To:        Don Bowman <don@sandvine.com>
Cc:        "'freebsd-stable@freebsd.org'" <freebsd-stable@FreeBSD.ORG>
Subject:   Re: bge0 system hang when PCI-X enabled
Message-ID:  <3D09C466.5BEF1C4D@alogis.com>
References:  <FE045D4D9F7AED4CBFF1B3B813C8533767645F@mail.sandvine.com>

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Don Bowman wrote:
> 
> I've noticed that the 5700 and 5701 cause a system
> crash in our new supermicro dual xeon systems (P4DPR+)
> unless PCI-X is disabled (motherboard jumper). The 5700 (or 5701)
> is the only card on the bus. This is under FreeBSD 4.6
> prerelease (and 4.5). 'bge0' is the 5701 in the map below.
> 
> Is this expected behaviour? It happens when there's a bit
> of traffic (e.g. an 'ls -lR' of an NFS mounted dir).

could you send "dmesg" and "mptable" output?
(both cases - PCI-X enabled, PCI-X disabled)

I am currently looking for evidence that shared irqs might lead to
system hangs (=> irq stalls), if timing of all involved device
drivers is 'right'.

Subject says 'hang' - in your message you say 'crash'. What is
the exact behaviour of your system?
Eg can you still switch consoles (ALT-F1,...)?

Regards,
Holger


-- 
Holger Kipp, Dipl.-Math., Systemadministrator  | alogis AG
Fon: +49 (0)30 / 43 65 8 - 114                 | Berliner Strasse 26
Fax: +49 (0)30 / 43 65 8 - 214                 | D-13507 Berlin Tegel
email: holger.kipp@alogis.com                  | http://www.alogis.com

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