Bug #1282
openpanic (trap 12) when booting SMP kernel on Atom 330 (dual core)
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Description
Hello!
I am playing with Atom 330 Dual Core P945GC combination which works fine under generic kernel, but crashes with trap 12
as soon as all physical and virtual cores are printed to the screen while booting. Anyone else playing with similar setup?
Tomaž
Updated by thomas.nikolajsen over 15 years ago
Hi Tomaž,
I have a D945GCLF2, with atom 330, works nice with SMP,
just leave `options APIC_IO' out of kernel config.
-thomas
Updated by corecode over 15 years ago
Do you think we can debug the cause of this problem? I'd like to slowly fix APIC_IO support so that in the distant future it could become a default (instead of using PIC).
cheers
simon
Updated by dillon over 15 years ago
:
:Thomas Nikolajsen (via DragonFly issue tracker) wrote:
:> I have a D945GCLF2, with atom 330, works nice with SMP,
:> just leave `options APIC_IO' out of kernel config.
:
:Do you think we can debug the cause of this problem? I'd like to slowly fix APIC_IO support so that in the distant future it could become a default (instead of using PIC).
:
:cheers
: simon
This just goes back to the ACPI interrupt routing issue. The PCI bios
just doesn't work on most PCs. APIC_IO is broken because we currently
rely on the MP table, and the MP table does not supply the correct
interrupt routing information on many BIOSes.
-Matt
Matthew Dillon
<dillon@backplane.com>
Updated by tuxillo almost 15 years ago
Hi,
Afaik, a while ago Sepherosa changed fixed some MP issues by ignoring the
MPTable (when it wasn't available or couldn't be read) and trusting on ACPI
instead MADT. Did the APIC_IO get better after this?
Cheers,
Antonio Huete
Updated by elekktretterr almost 15 years ago
Antonio Huete Jimenez <tuxillo@quantumachine.net> added the comment:
Hi,
Afaik, a while ago Sepherosa changed fixed some MP issues by ignoring the
MPTable (when it wasn't available or couldn't be read) and trusting on
ACPI
instead MADT. Did the APIC_IO get better after this?
As far as I remember, no. APIC_IO didnt get updated. I know my laptop only
boots with APIC_IO disabled. Does anyone know whats happening with Sephe?
Petr
Updated by tuxillo almost 10 years ago
- Description updated (diff)
- Category set to Kernel
- Status changed from New to Feedback
- Assignee deleted (
0) - Target version set to 4.2
Hi,
Please retry it with lastest master.
Cheers,
Antonio Huete