IRQ problem

[xenos]

I don't have a crystal ball at hand, but I bet bochs' log knows it. Look at the lines regarding the PIT and PIC chips, or post them here.

[Combuster]

Or rather, read the FAQ before asking a question. Your exact problem is in there.

[wrozowski]

Dear all,

I don't have a crystal ball at hand, but I bet bochs' log knows it. Look at the lines regarding the PIT and PIC chips, or post them here.

Below is the log from the Bochs 2.6.6 running my os on windows 8.1 pro:

Code: Select all

00000000000i[      ] Bochs x86 Emulator 2.6.6
00000000000i[      ]   Built from SVN snapshot on June 15, 2014
00000000000i[      ] Compiled on Jun 15 2014 at 08:54:27
00000000000i[      ] System configuration
00000000000i[      ]   processors: 1 (cores=1, HT threads=1)
00000000000i[      ]   A20 line support: yes
00000000000i[      ] IPS is set to 4000000
00000000000i[      ] CPU configuration
00000000000i[      ]   SMP support: no
00000000000i[      ]   level: 6
00000000000i[      ]   APIC support: xapic
00000000000i[      ]   FPU support: yes
00000000000i[      ]   MMX support: yes
00000000000i[      ]   3dnow! support: no
00000000000i[      ]   SEP support: yes
00000000000i[      ]   SIMD support: sse2
00000000000i[      ]   XSAVE support: no 
00000000000i[      ]   AES support: no
00000000000i[      ]   SHA support: no
00000000000i[      ]   MOVBE support: no
00000000000i[      ]   ADX support: no
00000000000i[      ]   x86-64 support: yes
00000000000i[      ]   1G paging support: no
00000000000i[      ]   MWAIT support: yes
00000000000i[      ]   VMX support: 1
00000000000i[      ] Optimization configuration
00000000000i[      ]   RepeatSpeedups support: yes
00000000000i[      ]   Fast function calls: yes
00000000000i[      ]   Handlers Chaining speedups: yes
00000000000i[      ] Devices configuration
00000000000i[      ]   NE2000 support: yes
00000000000i[      ]   PCI support: yes, enabled=yes
00000000000i[      ]   SB16 support: yes
00000000000i[      ]   USB support: yes
00000000000i[      ]   VGA extension support: vbe cirrus voodoo
00000000000i[MEM0  ] allocated memory at 0C561020. after alignment, vector=0C562000
00000000000i[MEM0  ] 32,00MB
00000000000i[MEM0  ] mem block size = 0x00100000, blocks=32
00000000000i[MEM0  ] rom at 0xfffe0000/131072 ('C:\Program Files (x86)\Bochs-2.6.6/BIOS-bochs-latest')
00000000000i[SNDLOW] Sound lowlevel module 'win' initialized
00000000000i[PLUGIN] init_dev of 'pci' plugin device by virtual method
00000000000i[DEV   ] i440FX PMC present at device 0, function 0
00000000000i[PLUGIN] init_dev of 'pci2isa' plugin device by virtual method
00000000000i[DEV   ] PIIX3 PCI-to-ISA bridge present at device 1, function 0
00000000000i[PLUGIN] init_dev of 'cmos' plugin device by virtual method
00000000000i[CMOS  ] Using local time for initial clock
00000000000i[CMOS  ] Setting initial clock to: Fri Aug 29 09:10:51 2014 (time0=1409296251)
00000000000i[PLUGIN] init_dev of 'dma' plugin device by virtual method
00000000000i[DMA   ] channel 4 used by cascade
00000000000i[PLUGIN] init_dev of 'pic' plugin device by virtual method
00000000000i[PLUGIN] init_dev of 'pit' plugin device by virtual method
00000000000i[PLUGIN] init_dev of 'vga' plugin device by virtual method
00000000000i[MEM0  ] Register memory access handlers: 0x0000000a0000 - 0x0000000bffff
00000000000i[VGA   ] interval=200000
00000000000i[MEM0  ] Register memory access handlers: 0x0000e0000000 - 0x0000e0ffffff
00000000000i[BXVGA ] VBE Bochs Display Extension Enabled
00000000000i[WINGUI] Desktop Window dimensions: 1366 x 768
00000000000i[WINGUI] Number of Mouse Buttons = 2
00000000000i[WINGUI] IME disabled
00000000000i[MEM0  ] rom at 0xc0000/41472 ('C:\Program Files (x86)\Bochs-2.6.6/VGABIOS-lgpl-latest')
00000000000i[PLUGIN] init_dev of 'floppy' plugin device by virtual method
00000000000i[DMA   ] channel 2 used by Floppy Drive
00000000000i[PLUGIN] init_dev of 'acpi' plugin device by virtual method
00000000000i[DEV   ] ACPI Controller present at device 1, function 3
00000000000i[PLUGIN] init_dev of 'ioapic' plugin device by virtual method
00000000000i[IOAPIC] initializing I/O APIC
00000000000i[MEM0  ] Register memory access handlers: 0x0000fec00000 - 0x0000fec00fff
00000000000i[IOAPIC] IOAPIC enabled (base address = 0xfec00000)
00000000000i[PLUGIN] init_dev of 'keyboard' plugin device by virtual method
00000000000i[KBD   ] will paste characters every 400 keyboard ticks
00000000000i[PLUGIN] init_dev of 'harddrv' plugin device by virtual method
00000000000i[HD    ] CD on ata1-1: 'C:\Users\Wojtek\valhalla\bootable.iso'
00000000000i[CD1   ] load cdrom with path='C:\Users\Wojtek\valhalla\bootable.iso'
00000000000i[CD1   ] Opening image file as a cd
00000000000i[HD    ] Media present in CD-ROM drive
00000000000i[HD    ] Capacity is 244 sectors (0,48 MB)
00000000000i[HD    ] Using boot sequence cdrom, none, none
00000000000i[HD    ] Floppy boot signature check is enabled
00000000000i[PLUGIN] init_dev of 'pci_ide' plugin device by virtual method
00000000000i[DEV   ] PIIX3 PCI IDE controller present at device 1, function 1
00000000000i[PLUGIN] init_dev of 'unmapped' plugin device by virtual method
00000000000i[PLUGIN] init_dev of 'biosdev' plugin device by virtual method
00000000000i[PLUGIN] init_dev of 'speaker' plugin device by virtual method
00000000000i[PCSPK ] Using lowlevel sound support for output
00000000000i[PLUGIN] init_dev of 'extfpuirq' plugin device by virtual method
00000000000i[PLUGIN] init_dev of 'parallel' plugin device by virtual method
00000000000i[PAR   ] parallel port 1 at 0x0378 irq 7
00000000000i[PLUGIN] init_dev of 'serial' plugin device by virtual method
00000000000i[SER   ] com1 at 0x03f8 irq 4 (mode: null)
00000000000i[PLUGIN] init_dev of 'gameport' plugin device by virtual method
00000000000i[PLUGIN] init_dev of 'usb_uhci' plugin device by virtual method
00000000000i[DEV   ] Experimental USB UHCI present at device 1, function 2
00000000000i[UHCI  ] USB UHCI initialized
00000000000i[PLUGIN] register state of 'pci' plugin device by virtual method
00000000000i[PLUGIN] register state of 'pci2isa' plugin device by virtual method
00000000000i[PLUGIN] register state of 'cmos' plugin device by virtual method
00000000000i[PLUGIN] register state of 'dma' plugin device by virtual method
00000000000i[PLUGIN] register state of 'pic' plugin device by virtual method
00000000000i[PLUGIN] register state of 'pit' plugin device by virtual method
00000000000i[PLUGIN] register state of 'vga' plugin device by virtual method
00000000000i[PLUGIN] register state of 'floppy' plugin device by virtual method
00000000000i[PLUGIN] register state of 'unmapped' plugin device by virtual method
00000000000i[PLUGIN] register state of 'biosdev' plugin device by virtual method
00000000000i[PLUGIN] register state of 'speaker' plugin device by virtual method
00000000000i[PLUGIN] register state of 'extfpuirq' plugin device by virtual method
00000000000i[PLUGIN] register state of 'parallel' plugin device by virtual method
00000000000i[PLUGIN] register state of 'serial' plugin device by virtual method
00000000000i[PLUGIN] register state of 'gameport' plugin device by virtual method
00000000000i[PLUGIN] register state of 'usb_uhci' plugin device by virtual method
00000000000i[PLUGIN] register state of 'acpi' plugin device by virtual method
00000000000i[PLUGIN] register state of 'ioapic' plugin device by virtual method
00000000000i[PLUGIN] register state of 'keyboard' plugin device by virtual method
00000000000i[PLUGIN] register state of 'harddrv' plugin device by virtual method
00000000000i[PLUGIN] register state of 'pci_ide' plugin device by virtual method
00000000000i[SYS   ] bx_pc_system_c::Reset(HARDWARE) called
00000000000i[CPU0  ] cpu hardware reset
00000000000i[APIC0 ] allocate APIC id=0 (MMIO enabled) to 0x0000fee00000
00000000000i[CPU0  ] CPUID[0x00000000]: 00000005 756e6547 6c65746e 49656e69
00000000000i[CPU0  ] CPUID[0x00000001]: 00000633 00010800 00002028 1fcbfbff
00000000000i[CPU0  ] CPUID[0x00000002]: 00410601 00000000 00000000 00000000
00000000000i[CPU0  ] CPUID[0x00000003]: 00000000 00000000 00000000 00000000
00000000000i[CPU0  ] CPUID[0x00000004]: 00000000 00000000 00000000 00000000
00000000000i[CPU0  ] CPUID[0x00000005]: 00000040 00000040 00000003 00000020
00000000000i[CPU0  ] CPUID[0x80000000]: 80000008 00000000 00000000 00000000
00000000000i[CPU0  ] CPUID[0x80000001]: 00000000 00000000 00000101 2a100000
00000000000i[CPU0  ] CPUID[0x80000002]: 20202020 20202020 20202020 6e492020
00000000000i[CPU0  ] CPUID[0x80000003]: 286c6574 50202952 69746e65 52286d75
00000000000i[CPU0  ] CPUID[0x80000004]: 20342029 20555043 20202020 00202020
00000000000i[CPU0  ] CPUID[0x80000005]: 01ff01ff 01ff01ff 40020140 40020140
00000000000i[CPU0  ] CPUID[0x80000006]: 00000000 42004200 02008140 00000000
00000000000i[CPU0  ] CPUID[0x80000007]: 00000000 00000000 00000000 00000000
00000000000i[CPU0  ] CPUID[0x80000008]: 00003028 00000000 00000000 00000000
00000000000i[PLUGIN] reset of 'pci' plugin device by virtual method
00000000000i[PLUGIN] reset of 'pci2isa' plugin device by virtual method
00000000000i[PLUGIN] reset of 'cmos' plugin device by virtual method
00000000000i[PLUGIN] reset of 'dma' plugin device by virtual method
00000000000i[PLUGIN] reset of 'pic' plugin device by virtual method
00000000000i[PLUGIN] reset of 'pit' plugin device by virtual method
00000000000i[PLUGIN] reset of 'vga' plugin device by virtual method
00000000000i[PLUGIN] reset of 'floppy' plugin device by virtual method
00000000000i[PLUGIN] reset of 'acpi' plugin device by virtual method
00000000000i[PLUGIN] reset of 'ioapic' plugin device by virtual method
00000000000i[PLUGIN] reset of 'keyboard' plugin device by virtual method
00000000000i[PLUGIN] reset of 'harddrv' plugin device by virtual method
00000000000i[PLUGIN] reset of 'pci_ide' plugin device by virtual method
00000000000i[PLUGIN] reset of 'unmapped' plugin device by virtual method
00000000000i[PLUGIN] reset of 'biosdev' plugin device by virtual method
00000000000i[PLUGIN] reset of 'speaker' plugin device by virtual method
00000000000i[PLUGIN] reset of 'extfpuirq' plugin device by virtual method
00000000000i[PLUGIN] reset of 'parallel' plugin device by virtual method
00000000000i[PLUGIN] reset of 'serial' plugin device by virtual method
00000000000i[PLUGIN] reset of 'gameport' plugin device by virtual method
00000000000i[PLUGIN] reset of 'usb_uhci' plugin device by virtual method
00000004634i[BIOS  ] $Revision: 11761 $ $Date: 2013-08-02 17:59:49 +0200 (Fr, 02. Aug 2013) $
00000318038i[KBD   ] reset-disable command received
00000320717i[BIOS  ] Starting rombios32
00000321158i[BIOS  ] Shutdown flag 0
00000321729i[BIOS  ] ram_size=0x02000000
00000322192i[BIOS  ] ram_end=32MB
00000800002i[WINGUI] dimension update x=720 y=400 fontheight=16 fontwidth=9 bpp=8
00001235337i[BIOS  ] Found 1 cpu(s)
00001249366i[BIOS  ] bios_table_addr: 0x000fa468 end=0x000fcc00
00001577001i[PCI   ] i440FX PMC write to PAM register 59 (TLB Flush)
00001905328i[P2ISA ] PCI IRQ routing: PIRQA# set to 0x0b
00001905353i[P2ISA ] PCI IRQ routing: PIRQB# set to 0x09
00001905353i[P2ISA ] PCI IRQ routing: PIRQC# set to 0x0b
00001905353i[P2ISA ] PCI IRQ routing: PIRQD# set to 0x09
00001905353i[P2ISA ] write: ELCR2 = 0x0a
00001906007i[BIOS  ] PIIX3/PIIX4 init: elcr=00 0a
00001913477i[BIOS  ] PCI: bus=0 devfn=0x00: vendor_id=0x8086 device_id=0x1237 class=0x0600
00001916004i[BIOS  ] PCI: bus=0 devfn=0x08: vendor_id=0x8086 device_id=0x7000 class=0x0601
00001918005i[BIOS  ] PCI: bus=0 devfn=0x09: vendor_id=0x8086 device_id=0x7010 class=0x0101
00001918475i[PIDE  ] new BM-DMA address: 0xc000
00001919007i[BIOS  ] region 4: 0x0000c000
00001921003i[BIOS  ] PCI: bus=0 devfn=0x0a: vendor_id=0x8086 device_id=0x7020 class=0x0c03
00001921297i[UHCI  ] new base address: 0xc020
00001921819i[BIOS  ] region 4: 0x0000c020
00001922007i[UHCI  ] new irq line = 9
00001923536i[BIOS  ] PCI: bus=0 devfn=0x0b: vendor_id=0x8086 device_id=0x7113 class=0x0680
00001924002i[ACPI  ] new irq line = 11
00001924193i[ACPI  ] new irq line = 9
00001924214i[ACPI  ] new PM base address: 0xb000
00001924214i[ACPI  ] new SM base address: 0xb100
00001924246i[PCI   ] setting SMRAM control register to 0x4a
00002088364i[CPU0  ] Enter to System Management Mode
00002088364i[CPU0  ] enter_system_management_mode: temporary disable VMX while in SMM mode
00002088368i[CPU0  ] RSM: Resuming from System Management Mode
00002252387i[PCI   ] setting SMRAM control register to 0x0a
00002267000i[BIOS  ] MP table addr=0x000fa540 MPC table addr=0x000fa470 size=0xc8
00002269002i[BIOS  ] SMBIOS table addr=0x000fa550
00002271005i[BIOS  ] ACPI tables: RSDP addr=0x000fa670 ACPI DATA addr=0x01ff0000 size=0xf72
00002274275i[BIOS  ] Firmware waking vector 0x1ff00cc
00002276253i[PCI   ] i440FX PMC write to PAM register 59 (TLB Flush)
00002276807i[BIOS  ] bios_table_cur_addr: 0x000fa694
00002404596i[VBIOS ] VGABios $Id: vgabios.c,v 1.76 2013/02/10 08:07:03 vruppert Exp $

00002404681i[BXVGA ] VBE known Display Interface b0c0
00002404700i[BXVGA ] VBE known Display Interface b0c5
00002407624i[VBIOS ] VBE Bios $Id: vbe.c,v 1.64 2011/07/19 18:25:05 vruppert Exp $
00006575271i[BIOS  ] IDE time out
00008000002i[WINGUI] &&&missing mouse state change
00010015153i[WINGUI] &&&missing mouse state change
00019033496i[BIOS  ] Booting from 07c0:0000
00019137763i[BIOS  ] int13_harddisk: function 41, unmapped device for ELDL=80
00019141443i[BIOS  ] int13_harddisk: function 08, unmapped device for ELDL=80
00019145118i[BIOS  ] *** int 15h function AX=00c0, BX=0000 not yet supported!
00035135876i[SER   ] com1: FIFO enabled
00036570492i[CPU0  ] WARNING: HLT instruction with IF=0!
00172004000p[WINGUI] >>PANIC<< POWER button turned off.
00172004000i[CPU0  ] CPU is in protected mode (halted)
00172004000i[CPU0  ] CS.mode = 32 bit
00172004000i[CPU0  ] SS.mode = 32 bit
00172004000i[CPU0  ] EFER   = 0x00000000
00172004000i[CPU0  ] | EAX=00000007  EBX=0002cd80  ECX=00000000  EDX=00000007
00172004000i[CPU0  ] | ESP=0010e284  EBP=00067ee0  ESI=0002cf08  EDI=0002cf09
00172004000i[CPU0  ] | IOPL=0 id vip vif ac vm rf nt of df if tf sf zf af pf cf
00172004000i[CPU0  ] | SEG sltr(index|ti|rpl)     base    limit G D
00172004000i[CPU0  ] |  CS:0008( 0001| 0|  0) 00000000 ffffffff 1 1
00172004000i[CPU0  ] |  DS:0010( 0002| 0|  0) 00000000 ffffffff 1 1
00172004000i[CPU0  ] |  SS:0010( 0002| 0|  0) 00000000 ffffffff 1 1
00172004000i[CPU0  ] |  ES:0010( 0002| 0|  0) 00000000 ffffffff 1 1
00172004000i[CPU0  ] |  FS:0010( 0002| 0|  0) 00000000 ffffffff 1 1
00172004000i[CPU0  ] |  GS:0010( 0002| 0|  0) 00000000 ffffffff 1 1
00172004000i[CPU0  ] | EIP=001005ad (001005ad)
00172004000i[CPU0  ] | CR0=0xe0000011 CR2=0x00000000
00172004000i[CPU0  ] | CR3=0x00112000 CR4=0x00000000
00172004000i[CPU0  ] 0x00000000001005ad>> jmp .-2 (0x001005ad) : EBFE
00172004000i[CMOS  ] Last time is 1409296294 (Fri Aug 29 09:11:34 2014)
00172004000i[      ] restoring default signal behavior
00172004000i[SIM   ] quit_sim called with exit code 1

Greetings
Wrozowski

[Icee]

Let me grep this for you.

Code: Select all

00036570492i[CPU0  ] WARNING: HLT instruction with IF=0!

To avoid this topic further swelling up from meaningless question-answer ping-pong: the sequence in question is in your _start function. Once kernel_main returns, you force the CPU to a halt. Replace CLI/HLT with:

Code: Select all

1: hlt
jmp 1b

and enjoy your timer interrupts.

[wrozowski]

Dear all,

I would like to thank everybody for getting involved in this topic.

To avoid this topic further swelling up from meaningless question-answer ping-pong: the sequence in question is in your _start function. Once kernel_main returns, you force the CPU to a halt. Replace CLI/HLT with:

Code: Select all

1: hlt
jmp 1b

and enjoy your timer interrupts.

Dear Icee, you're right. I was using code from the Bare Bones tutorial:

Code: Select all

	cli
	hlt
.Lhang:
	jmp .Lhang

I changed it to your code and now PIT works fine. I think that this few lines in the Bare Bones tutorial should be changed to avoid people having the same problem as me.
Thanks

Greetings
wrozowski