Date: Fri, 1 Feb 2002 13:44:35 -0600
From: Ken Brownfield <brownfld@irridia.com>
To: nick@snowman.net
Cc: "Edward S. Marshall" <esm@logic.net>, linux-kernel@vger.kernel.org
Subject: Re: PCI Problems [was Re: NIC lockup in 2.4.17 (SMP/APIC/Intel 82557)]
Message-ID: <20020201134435.C8599@asooo.flowerfire.com>
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In-Reply-To: <Pine.LNX.4.21.0202011315040.12736-100000@ns>; from nick@snowman.net on Fri, Feb 01, 2002 at 01:16:15PM -0500
Sender: linux-kernel-owner@vger.kernel.org

I've had LPr, LP1000r, LP2000r, and LH6000s in *heavy* production for
two years straight with nary a whimper from the eepro100, e100, or e1000
drivers.*  This is SMP with 2-6 procs, 256MB-4GB RAM, all 2.2 and 2.4
kernels under RH6.2.  On 100/1000, never 10Mb though.

Not to say that the HPs smell like roses, but I would highly suspect bad
hardware or a suspect BIOS/PCB revision, etc. in this case.

Just my US$0.02,
-- 
Ken.
brownfld@irridi.com

* besides a quirky arp issue on boot that seemed to go away on its own
and wasn't card-specific.  And the long-standing I/O APIC issues. ;)

On Fri, Feb 01, 2002 at 01:16:15PM -0500, nick@snowman.net wrote:
| Odd, I've got an HP LPr with an     Ethernet controller: Intel Corporation
| 82557 [Ethernet Pro 100] (rev 8). on the riser.  Works fine for me under
| the debian SMP kernel Linux version 2.4.5-686-smp (herbert@gondolin) (gcc
| version 2.95.4 20010319 (Debian prerelease)) #1 SMP Sun May 27 18:32:54
| EST 2001.  If you'd like me to test a workload or similar let me know, the
| system is relativly low memory though.
| 	Nick
| 
| On 1 Feb 2002, Edward S. Marshall wrote:
| 
| > On Thu, 2002-01-31 at 11:54, Ben Greear wrote:
| > > The only lockup problems I have run into are connecting some eepro nics to
| > > a 10bt hub, and using (cheap arsed, it appears) PCI riser cards.  I have
| > > heard of some SMP related issues, but nothing concrete, and I don't
| > > have any SMP systems personally.  You could try the e100, but I have
| > > no idea if it will be better or worse for your particular problem.
| > 
| > I was running into the same problems here; SMP system w/PCI riser card
| > (HP NetServer LPr), connected to a 10/100 switch. I'd get
| > "wait_for_command_timeout" errors all the time under moderate network
| > load. Switching to the e100 driver didn't help in the slightest.
| > Eventually, I'd experience a complete system lockup.
| > 
| > Replacing the card with a 3c59x-based card put the machine back in
| > service (I've completely written eepro100s off as a viable cards now),
| > although I still saw occasional PCI-related issues. Specifically:
| > 
| > Jan 23 10:11:37 x kernel: Uhhuh. NMI received. Dazed and confused, but
| > trying to continue
| > Jan 23 10:11:37 x kernel: eth0: Host error, FIFO diagnostic register
| > 0000.
| > Jan 23 10:11:37 x kernel: eth0: PCI bus error, bus status 80000020
| > Jan 23 10:11:37 x kernel: You probably have a hardware problem with your
| > RAM chips
| > Jan 23 10:11:37 x kernel: eth0: Host error, FIFO diagnostic register
| > 0000.
| > Jan 23 10:11:37 x kernel: eth0: PCI bus error, bus status 80000020
| > 
| > The last two messages will repeat indefinitely, usually with a hit to
| > the dist for each pair of log entries (resulting in a very distinctive
| > drive grinding). Memory problems don't seem to be the issue; with a
| > fairly extensive run of memtest86, everything came back clean.
| > 
| > Taking a few minutes to try and rectify the situation, I started
| > shutting down services and manually unloading modules to see what was
| > causing the problem. Unloading usbcore did the trick:
| > 
| > Jan 26 18:41:24 x kernel: eth0: Host error, FIFO diagnostic register
| > 0000.
| > Jan 26 18:41:24 x kernel: eth0: PCI bus error, bus status 80000020
| > Jan 26 18:41:24 x kernel: eth0: Too much work in interrupt, status e003.
| > Jan 26 18:41:24 x kernel: usb.c: USB disconnect on device 1
| > Jan 26 18:41:24 x kernel: USB bus 1 deregistered
| > 
| > I've rebooted the machine since then, but have always unloaded usb-uhci
| > and usbcore after booting. The issue hasn't cropped up again, although
| > it happened every couple of days previously.
| > 
| > The kernel in question is Red Hat's kernel-smp-2.4.9-21 build.
| > 
| > -- 
| > Edward S. Marshall <esm@logic.net>                       
| > http://esm.logic.net/
| > -------------------------------------------------------------------------------
| > [                  Felix qui potuit rerum cognoscere causas.            
| > ]
| > 
| > -
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| 
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