From: Denis Vlasenko <vda@port.imtp.ilyichevsk.odessa.ua>
To: Norbert Nemec <nobbi@theorie3.physik.uni-erlangen.de>,
linux-kernel@vger.kernel.org
Subject: Re: Serious Problems with PCI and SMP
Date: Thu, 26 Sep 2002 14:59:14 -0200 [thread overview]
Message-ID: <200209261204.g8QC4vp04049@Port.imtp.ilyichevsk.odessa.ua> (raw)
In-Reply-To: <20020926090754.GA22448@cognac.physik.uni-erlangen.de>
On 26 September 2002 07:07, Norbert Nemec wrote:
BTW, for lkml readers: this was in original post:
=================================================
We have a number of machines with identical dual PPro 200 mainboards. They all
run fine on 2.2.13 kernels. Trying 2.4.18,2.4.19,2.4.20-pre7 and even 2.2.19,
the same problem shows up:
With SMP activated in the kernel, I get the boot-messages
---------
PCI: PCI BIOS revision 2.10 entry at 0xfb0a0, last bus=0
PCI: Using configuration type 1
PCI: Probing PCI hardware
PCI BIOS passed nonexistent PCI bus 0!
PCI BIOS passed nonexistent PCI bus 0!
Limiting direct PCI/PCI transfers.
---------
Afterwards, everything runs fine, except that PCI seems to be only half-way
functional: network-cards don't give any error messages but behave just
as if the cable was disconnected scsi-cards give strange errors (don't recall
what exactly)
With SMP disabled in the kernel, everything works just fine.
================================
> > Post your .config and dmesg
>
> Here they are. In this version, CONFIG_PCI_GOBIOS=y is set. Switching to
> CONFIG_PCI_GODIRECT=y or CONFIG_PCI_GOANY=y only adds the line
> ----
> PCI: PCI BIOS revision 2.10 entry at 0xfb0a0, last bus=0
> +PCI: Using configuration type 1
> PCI: Probing PCI hardware
> ----
> without any further difference.
> .config:
> ---------------------------
> #
> # Processor type and features
> #
> CONFIG_M686=y
Can you try to boot 486-optimized kernel?
Can you remove one CPU and run SMP kernel on UP configuration?
--
vda
next prev parent reply other threads:[~2002-09-26 12:27 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-09-23 15:53 Serious Problems with PCI and SMP Norbert Nemec
[not found] ` <200209240828.g8O8Stp24897@Port.imtp.ilyichevsk.odessa.ua>
2002-09-26 9:07 ` Norbert Nemec
2002-09-26 16:59 ` Denis Vlasenko [this message]
2002-09-30 13:15 ` Norbert Nemec
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