Hello to the brave apic pioneers,
While trying to use the lapic2 branch for fedora 64bit guest over Intel
host 2.6.22 I got the following:
===========
ide: Assuming 33MHz system bus speed for PIO modes; override with
idebus=xx
PIIX3: IDE controller at PCI slot 0000:00:01.1
PIIX3: chipset revision 0
PIIX3: not 100% native mode: will probe irqs later
ide0: BM-DMA at 0xc000-0xc007, BIOS settings: hda:pio, hdb:pio
ide1: BM-DMA at 0xc008-0xc00f, BIOS settings: hdc:pio, hdd:pio
hda: QEMU HARDDISK, ATA DISK drive
irq 14: nobody cared (try booting with the "irqpoll" option)
Call Trace:
<IRQ> [<ffffffff802582ab>] __report_bad_irq+0x30/0x72
[<ffffffff802584b7>] note_interrupt+0x1ca/0x20f
[<ffffffff80258a71>] handle_edge_irq+0xf9/0x128
[<ffffffff8020a61c>] call_softirq+0x1c/0x28
[<ffffffff8020b93d>] do_IRQ+0xf1/0x160
[<ffffffff80209971>] ret_from_intr+0x0/0xa
<EOI> [<ffffffff8038474f>] ide_outb+0x0/0x9
[<ffffffff8041112c>] _spin_unlock_irqrestore+0xc/0x31
[<ffffffff8025807f>] setup_irq+0x163/0x1a1
[<ffffffff80382b1b>] ide_intr+0x0/0x200
[<ffffffff8025814e>] request_irq+0x91/0xb5
[<ffffffff8038638d>] init_irq+0x283/0x50d
[<ffffffff8038675f>] hwif_init+0x148/0x32b
[<ffffffff80386abf>] probe_hwif_init_with_fixup+0x23/0x94
[<ffffffff80389184>] ide_setup_pci_device+0x80/0xbc
[<ffffffff80592c3c>] ide_scan_pcidev+0x31/0x58
[<ffffffff80592c85>] ide_scan_pcibus+0x22/0xa5
[<ffffffff80592582>] ide_init+0x55/0x63
[<ffffffff805798c1>] kernel_init+0x163/0x2cd
[<ffffffff80411166>] _spin_unlock_irq+0x15/0x30
[<ffffffff8020a2a8>] child_rip+0xa/0x12
[<ffffffff8032492c>] acpi_ds_init_one_object+0x0/0x7c
[<ffffffff8057975e>] kernel_init+0x0/0x2cd
[<ffffffff8020a29e>] child_rip+0x0/0x12
handlers:
[<ffffffff80382b1b>] (ide_intr+0x0/0x200)
Disabling IRQ #14
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
===========
Using nolapic in the guest's kernel worked but seems the apic is broken.
Also, in Gregory's original code there was qemu cmdline option of
setting the pic/apic position.
It is required for debugging/comparing these source of problems.
Thanks, Dor.
-----
In simplicity there is elegance.
Dor Laor ;)
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