nforce2 vs. apic

yuri van Overmeeren yuri.vanovermeeren at
Thu Sep 16 05:47:10 PDT 2004

Andriy Gapon wrote:

>I have nforce2-based motherboard Abit NF7 and run 5.2.1-RELEASE on that
>system. I have tried to enable APIC by compiling kernel with 'device
>apic' (both with and without SMP option, although this is a UP system),
>but system just freezes during boot with it. Everything works pretty
>well without APIC, I was just curious about getting it to work.
>I found this discussion:
>and I have also found numerous reports on nforce2+APIC lockup problem in
>Linux and some patches that were reported to help with it.
>So, I want to find out if anything changed with respect to this in
>FreeBSD, maybe some patches/workarounds, or success stories about
>Also some notes about my lockup. It happens at this point (exerpt for
>non-verbose non-APIC dmesg):
>psm0: <PS/2 Mouse> irq 12 on atkbdc0
>psm0: model IntelliMouse, device ID 3
>pmtimer0 on isa0
>sc0: <System console> on isa0
>sc0: VGA <16 virtual consoles, flags=0x200>
>vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
>Timecounter "TSC" frequency 1830012912 Hz quality 800
>Timecounters tick every 10.000 msec
>ipfw2 initialized, divert disabled, rule-based forwarding enabled,
>default to accept, logging limited to 100 packets/entry by default
><<< In APIC case system freezes here >>>
>GEOM: create disk ad0 dp=0xc6e15e60
>ad0: 76319MB <WDC WD800JB-00ETA0> [155061/16/63] at ata0-master UDMA100
>acd0: CDRW <TEAC CD-W552E> at ata1-master UDMA33
>Also, when system freezes keyboard LEDs still work properly and cursor
>disappears when I press Scroll Lock, but arrow and PgUp/PgDown do not
>work; if I try Alt-F<N> system speacker emits monotonic sound that can
>not be turned off (except by reset, of course).
>I am ready to provide any additional information. Unfortunately I am not
>able to use serial console, so I can't give much info for APIC-enabled case.
5.2.1 freezes on a nforce2 mainboard with apci, I have a nforce2 (same 
abit board) based machine here running freebsd, never got the 
5.2.1-release to work with acpi.
It was fixed a little while after the release, 5-current has been 
running on the nforce2 for a while.
If you can wait untill the 5.3-release,which should be in about 2~3 
weeks, (and run 5.2.1 without acpi for that time) I would do that, 5.3 
no longer has the lock-up issue.


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