Re: SMP Woes

Vladimir G. Ivanovic
2004-04-22T17:21:08Z

I have an ASUS CUV4X-DLS dual-processor motherboard that I've been
running for three years (?).

I use grub; here is my grub.conf file:

timeout=10
splashimage=(hd0,0)/grub/splash.xpm.gz
default=0

title Fedora Core (2.4.22-1.2179.nptlsmp)
root (hd0,0)
kernel /vmlinuz-2.4.22-1.2179.nptlsmp root=/dev/sda4 hdb=ide-scsi ide2=0x9400,0x9002 ide3=0x8800,0x8402
initrd /initrd-2.4.22-1.2179.nptlsmp.img

title Fedora Core (2.4.22-1.2174.nptlsmp)
root (hd0,0)
kernel /vmlinuz-2.4.22-1.2174.nptlsmp root=/dev/sda4 hdb=ide-scsi ide2=0x9400,0x9002 ide3=0x8800,0x8402
initrd /initrd-2.4.22-1.2174.nptlsmp.img

title Memtest86 v3.1
kernel /memtest86-3.1

But to get Linux SMP to run, I had to turn off MPS 1.4 support in the
BIOS. I also turn off automatic IDE detection, but then enable the
Primary IDE channel. (I have an 133 MHz IDE controller hooked up to a
200 GB drive.)

Let me know if you want more details about my setup.

--- Vladimir

------------------------------------------------------------------------
Vladimir G. Ivanovic http://leonora.org/~vladimir
2770 Cowper St. vladimir@acm.org
Palo Alto, CA 94306-2447 +1 650 678 8014
------------------------------------------------------------------------

>>>>> "bh" == Bobby Hitt <Bob.Hitt@bscnet.com> writes:

bh> Hello,
bh>
bh> I recently posted this message to the linux-kernel list:
bh> ------
bh> I have an ASUS CUV4XD dual CPU mobo that I've been using with Window 2000
bh> Professional for the last two years. It worked fine, W2K used both CPUs with
bh> no problems whatsoever. I recently upgraded my W2K system, and decided to
bh> use the ASUS board in a system I was building to use as a Linux gateway. The
bh> problem I'm having is the system refuses to boot when I created a kernel
bh> with SMP support. If I turn off SMP and rebuild the kernel, boots fine. I
bh> have two other SMP systems, very old mother boards, 5+ years old. They both
bh> run Linux fine with SMP. I even took the source tree from a working system,
bh> built a new kernel, locks up on bootup. The last message displayed :
bh>
bh> Total of 2 processors activated ( 3186.68 BogoMIPS)
bh> Enabling IO-APIC IRQs
bh> Setting 2 in the phys_id_present_map
bh> .. changing IO-APIC physical APIC ID to 2 ... ok.
bh>
bh> I contacted Alan Cox about this, he said he was working on his MBa and
bh> hadn't been involved with kernel development for a while. He suggest adding:
bh>
bh> append="noapic pci=usepirqmask"
bh>
bh> to the lilo.conf file, which I did. No change.
bh>
bh> Any body have similar problems or suggestions?
bh> ------
bh>
bh> This was for kernel 2.4.23.
bh>
bh> I've since figured out that problem. I found that the BIOS had an option
bh> "MPS 1/4 Support" which was checked. Turned that off, and now the system
bh> boots fine, but now have a new problem with my RAID configuration. When
bh> "raidstart /dev/md0" runs, it gives this error:
bh>
bh> cannot determine md version: 6
bh>
bh> The only thing I've done is to enable smp support in the kernel, which
bh> brings up another issue. I had just installed the source tree for 2.4.26.
bh> smp support was already checked, so all I did was to enable raid, reiserfs
bh> support, etc. I didn't turn on anything un-necessary. With "vga=791" set in
bh> the lilo.conf file, on reboot now all I get is a black screen and system
bh> lockup. When I went back to turn off smp, now the build fails with lots of
bh> "num_cpus" (or close to that) appear everywhere. The only way I can now
bh> build a new kernel is to save my .config file, wipe the directory,
bh> re-install the source tree, copy my .config file back and rebuild. With
bh> regard to the display issue, I'll disable the display for now. The raid
bh> issue is the main thing.
bh>
bh> TIA,
bh>
bh> Bobby
bh>
bh> -
bh> To unsubscribe from this list: send the line "unsubscribe linux-smp" in
bh> the body of a message to majordomo@vger.kernel.org
bh> More majordomo info at http://vger.kernel.org/majordomo-info.html
bh>