Re: i2c: designware: unhandled interrupt on N100 lpss channel 0

Heiner Kallweit
2024-03-20T20:21:37Z

On 20.03.2024 16:59, Andy Shevchenko wrote:
> On Wed, Mar 20, 2024 at 03:56:29PM +0100, Heiner Kallweit wrote:
>> On 20.03.2024 15:15, Andy Shevchenko wrote:
>>> On Wed, Mar 20, 2024 at 03:37:34PM +0200, Jarkko Nikula wrote:
>>>> On 3/20/24 2:27 PM, Heiner Kallweit wrote:
>>>>> On 19.03.2024 22:11, Heiner Kallweit wrote:
>>>>>> On a N100-based mini pc I see the following. I found older reports with the same symptom,
>>>>>> but root cause seems to be different.
>>>>>>
>>>>>> - Interrupt 27 is not shared in my case
>>>>>> - I checked register values on entering the ISR. Interrupt mask and DW_IC_RAW_INTR_STAT
>>>>>> are both 0.
>>>>>> - After an interrupt storm of 100,000 interrupts the interrupt gets disabled
>>>>>> - The issue affects channel 0 only
>>>>>>
>>>>>> If not the I2C IP, then who else can touch the interrupt line?
>>>>>
>>>>> I noticed that after including INTEL_IDMA64 in my config the problem no longer occurs.
>>>>> So there seems to be a dependency. Should it be reflected in Kconfig, e.g.
>>>>> make MFD_INTEL_LPSS dependent on INTEL_IDMA64, or let it imply INTEL_IDMA64?
>>>>>
>>>> Hmm.. interesting. I'd say BIOS perhaps has left the IDMA active and is
>>>> generating interrupts until the idma64 driver acknowledges it.
>>>>
>>>> There should not be generic dependency since the i2c_designware is not using
>>>> the DMA and a quick test on one platform where idma64 and i2c_designware are
>>>> sharing the same interrupt without CONFIG_INTEL_IDMA64 not set didn't show
>>>> similar behavior.
>>>>
>>>> Andy: Do you have any additional ideas or debug hints to this?
>>>
>>> Can you share `cat /proc/interrupts` in non-working and working cases?
>>>
>>> Just to confirm: loading idma64 driver fixes the issue, correct?
>>>
>> I spoke too soon. Loading idma64 didn't actually fix the problem.
>> What happened:
>> Runtime PM kicked in and set the device to D3. Therefore reads to the idma64
>> status register returned 0xffffffff, resulting the idma64 ISR returning
>> IRQ_HANDLED.
>
> Okay, bug in idma4 driver then :-) Good catch!
>
>> IRQ number still was rapidly growing.
>>
>> After disabling RPM the problem is back.
>> Who else could pull the level-triggered interrupt high?
>
> Need to understand a bit about RTE programming.
> You need to add 'apic=debug' to the kernel command line and look for IRQ 27
> related bits, and also makes sense to collect this

IOAPIC[0]: Preconfigured routing entry (2-27 -> IRQ 27 Level:1 ActiveLow:1)

For the sake of completeness I add below the output of dmesg | grep -i apic

>
> grep 0000001b /sys/kernel/debug/pinctrl/*/pins
>

pin 3 (GPPC_B_3) 3:INTC1057:00 GPIO 0x80100102 0x0000001b 0x00000000 [LOCKED tx]
pin 82 (GPP_F_7_EMMC_CMD) 135:INTC1057:00 GPIO 0x44000300 0x0000001b 0x00000000 [LOCKED full, ACPI]
pin 182 (GPPC_C_13) 269:INTC1057:00 GPIO 0x44000300 0x0000001b 0x00000000 [LOCKED full, ACPI]

> it will show the GPIO pins related to RTE 27 (and we can check if direct IRQ is
> enabled there).
>
>> [ 4.642978] irq 27: nobody cared (try booting with the "irqpoll" option)
>> [ 4.643067] CPU: 3 PID: 0 Comm: swapper/3 Not tainted 6.8.0-next-20240312+ #5
>> [ 4.643133] Hardware name: Default string Default string/Default string, BIOS ADLN.M6.SODIMM.ZB.CY.015 08/08/2023
>> [ 4.643215] Call Trace:
>> [ 4.643241] <IRQ>
>> [ 4.643266] dump_stack_lvl+0x81/0xe0
>> [ 4.643319] dump_stack+0x10/0x20
>> [ 4.643358] __report_bad_irq+0x2b/0xc0
>> [ 4.643403] note_interrupt+0x28f/0x2d0
>> [ 4.643442] ? __this_cpu_preempt_check+0x13/0x20
>> [ 4.643496] handle_irq_event+0x70/0x80
>> [ 4.643541] handle_fasteoi_irq+0x90/0x210
>> [ 4.643586] __common_interrupt+0x6f/0x140
>> [ 4.643633] common_interrupt+0xab/0xd0
>> [ 4.643672] </IRQ>
>> [ 4.643694] <TASK>
>> [ 4.643720] asm_common_interrupt+0x27/0x40
>> [ 4.643761] RIP: 0010:cpuidle_enter_state+0xff/0x4f0
>> [ 4.643815] Code: 8b 00 48 0f a3 05 d1 5f 9d 00 0f 82 fd 02 00 00 31 ff e8 f4 e0 69 ff 80 7d cf 00 0f 85 cc 02 00 00 e8 65 bd 77 ff fb 45 85 ff <0f> 88 f4 01 00 00 49 63 f7 4c 89 f2 48 8d 04 76 48 8d 04 86 49 8d
>> [ 4.643957] RSP: 0018:ffffb21dc017fe58 EFLAGS: 00000202
>> [ 4.644010] RAX: 000000000007987d RBX: ffffd21dbfdac690 RCX: 0000000000000000
>> [ 4.644069] RDX: 0000000000000000 RSI: ffffffff8f724a02 RDI: ffffffff8f710113
>> [ 4.644128] RBP: ffffb21dc017fe98 R08: 0000000000000001 R09: 0000000000000000
>> [ 4.644186] R10: 0000000000000001 R11: ffff91cfb7bad824 R12: 0000000000000001
>> [ 4.644244] R13: ffffffff8f9b69a0 R14: 0000000114be1938 R15: 0000000000000001
>> [ 4.644315] ? cpuidle_enter_state+0xfb/0x4f0
>> [ 4.644367] cpuidle_enter+0x29/0x40
>> [ 4.644409] call_cpuidle+0x1d/0x40
>> [ 4.644450] do_idle+0x1c2/0x220
>> [ 4.644489] cpu_startup_entry+0x24/0x30
>> [ 4.644529] start_secondary+0xf9/0x100
>> [ 4.644571] common_startup_64+0x13e/0x148
>> [ 4.644626] </TASK>
>> [ 4.644649] handlers:
>> [ 4.644674] [<000000008b061326>] idma64_irq [idma64]
>> [ 4.644852] [<000000008273d6d5>] i2c_dw_isr [i2c_designware_core]
>> [ 4.644920] Disabling IRQ #27
>>
>>
>> CPU0 CPU1 CPU2 CPU3
>> 8: 0 0 0 0 IR-IO-APIC 8-edge rtc0
>> 9: 0 44 0 0 IR-IO-APIC 9-fasteoi acpi
>> 16: 0 3 0 0 IR-IO-APIC 16-fasteoi i801_smbus, idma64.6
>> 27: 0 0 0 112018 IR-IO-APIC 27-fasteoi idma64.0, i2c_designware.0
>> 29: 0 0 0 0 IR-IO-APIC 29-fasteoi idma64.2, i2c_designware.2
>> 31: 0 0 0 0 IR-IO-APIC 31-fasteoi idma64.4, i2c_designware.4
>> 32: 0 0 0 0 IR-IO-APIC 32-fasteoi idma64.5, i2c_designware.5
>> 33: 0 0 0 0 IR-IO-APIC 33-fasteoi idma64.3, i2c_designware.3
>> 37: 0 0 0 0 IR-IO-APIC 37-fasteoi idma64.7
>> 40: 0 0 0 0 IR-IO-APIC 40-fasteoi idma64.1, i2c_designware.1
>>
>

[ 0.000000] Command line: initrd=\intel-ucode.img initrd=\initramfs-linux.img root=/dev/nvme0n1p2 rw apic=debug
[ 0.000000] APIC: Static calls initialized
[ 0.001448] ACPI: APIC 0x000000007341E000 0001DC (v05 ALASKA A M I 01072009 AMI 01000013)
[ 0.001547] ACPI: Reserving APIC table memory at [mem 0x7341e000-0x7341e1db]
[ 0.001589] mapped APIC to ffffffffff5fc000 ( fee00000)
[ 0.021194] ACPI: LAPIC_NMI (acpi_id[0x01] high edge lint[0x1])
[ 0.021196] ACPI: LAPIC_NMI (acpi_id[0x02] high edge lint[0x1])
[ 0.021198] ACPI: LAPIC_NMI (acpi_id[0x03] high edge lint[0x1])
[ 0.021199] ACPI: LAPIC_NMI (acpi_id[0x04] high edge lint[0x1])
[ 0.021201] ACPI: LAPIC_NMI (acpi_id[0x05] high edge lint[0x1])
[ 0.021202] ACPI: LAPIC_NMI (acpi_id[0x06] high edge lint[0x1])
[ 0.021203] ACPI: LAPIC_NMI (acpi_id[0x07] high edge lint[0x1])
[ 0.021205] ACPI: LAPIC_NMI (acpi_id[0x08] high edge lint[0x1])
[ 0.021206] ACPI: LAPIC_NMI (acpi_id[0x09] high edge lint[0x1])
[ 0.021207] ACPI: LAPIC_NMI (acpi_id[0x0a] high edge lint[0x1])
[ 0.021209] ACPI: LAPIC_NMI (acpi_id[0x0b] high edge lint[0x1])
[ 0.021210] ACPI: LAPIC_NMI (acpi_id[0x0c] high edge lint[0x1])
[ 0.021211] ACPI: LAPIC_NMI (acpi_id[0x0d] high edge lint[0x1])
[ 0.021213] ACPI: LAPIC_NMI (acpi_id[0x0e] high edge lint[0x1])
[ 0.021214] ACPI: LAPIC_NMI (acpi_id[0x0f] high edge lint[0x1])
[ 0.021215] ACPI: LAPIC_NMI (acpi_id[0x10] high edge lint[0x1])
[ 0.021217] ACPI: LAPIC_NMI (acpi_id[0x11] high edge lint[0x1])
[ 0.021218] ACPI: LAPIC_NMI (acpi_id[0x12] high edge lint[0x1])
[ 0.021219] ACPI: LAPIC_NMI (acpi_id[0x13] high edge lint[0x1])
[ 0.021221] ACPI: LAPIC_NMI (acpi_id[0x14] high edge lint[0x1])
[ 0.021222] ACPI: LAPIC_NMI (acpi_id[0x15] high edge lint[0x1])
[ 0.021223] ACPI: LAPIC_NMI (acpi_id[0x16] high edge lint[0x1])
[ 0.021225] ACPI: LAPIC_NMI (acpi_id[0x17] high edge lint[0x1])
[ 0.021226] ACPI: LAPIC_NMI (acpi_id[0x00] high edge lint[0x1])
[ 0.021279] IOAPIC[0]: apic_id 2, version 32, address 0xfec00000, GSI 0-119
[ 0.021287] Int: type 0, pol 0, trig 0, bus 00, IRQ 00, APIC ID 2, APIC INT 02
[ 0.021292] Int: type 0, pol 1, trig 3, bus 00, IRQ 09, APIC ID 2, APIC INT 09
[ 0.021295] Int: type 0, pol 0, trig 0, bus 00, IRQ 01, APIC ID 2, APIC INT 01
[ 0.021297] Int: type 0, pol 0, trig 0, bus 00, IRQ 03, APIC ID 2, APIC INT 03
[ 0.021299] Int: type 0, pol 0, trig 0, bus 00, IRQ 04, APIC ID 2, APIC INT 04
[ 0.021300] Int: type 0, pol 0, trig 0, bus 00, IRQ 05, APIC ID 2, APIC INT 05
[ 0.021302] Int: type 0, pol 0, trig 0, bus 00, IRQ 06, APIC ID 2, APIC INT 06
[ 0.021304] Int: type 0, pol 0, trig 0, bus 00, IRQ 07, APIC ID 2, APIC INT 07
[ 0.021306] Int: type 0, pol 0, trig 0, bus 00, IRQ 08, APIC ID 2, APIC INT 08
[ 0.021307] Int: type 0, pol 0, trig 0, bus 00, IRQ 0a, APIC ID 2, APIC INT 0a
[ 0.021309] Int: type 0, pol 0, trig 0, bus 00, IRQ 0b, APIC ID 2, APIC INT 0b
[ 0.021311] Int: type 0, pol 0, trig 0, bus 00, IRQ 0c, APIC ID 2, APIC INT 0c
[ 0.021313] Int: type 0, pol 0, trig 0, bus 00, IRQ 0d, APIC ID 2, APIC INT 0d
[ 0.021314] Int: type 0, pol 0, trig 0, bus 00, IRQ 0e, APIC ID 2, APIC INT 0e
[ 0.021316] Int: type 0, pol 0, trig 0, bus 00, IRQ 0f, APIC ID 2, APIC INT 0f
[ 0.021345] mapped IOAPIC to ffffffffff5fb000 (fec00000)
[ 0.021769] Kernel command line: initrd=\intel-ucode.img initrd=\initramfs-linux.img root=/dev/nvme0n1p2 rw apic=debug
[ 0.077440] APIC: Switch to symmetric I/O mode setup
[ 0.077586] DMAR-IR: IOAPIC id 2 under DRHD base 0xfed91000 IOMMU 1
[ 0.077618] DMAR-IR: Queued invalidation will be enabled to support x2apic and Intr-remapping.
[ 0.079697] DMAR-IR: Enabled IRQ remapping in x2apic mode
[ 0.079716] x2apic enabled
[ 0.079925] APIC: Switched APIC routing to: cluster x2apic
[ 0.084973] ENABLING IO-APIC IRQs
[ 0.084989] init IO_APIC IRQs
[ 0.084991] apic 2 pin 0 not connected
[ 0.085011] IOAPIC[2]: Set IRTE entry (P:1 FPD:0 Dst_Mode:1 Redir_hint:1 Trig_Mode:0 Dlvry_Mode:0 Avail:0 Vector:EF Dest:00000001 SID:00F7 SQ:0 SVT:1)
[ 0.085036] IOAPIC[0]: Preconfigured routing entry (2-1 -> IRQ 1 Level:0 ActiveLow:0)
[ 0.085046] IOAPIC[2]: Set IRTE entry (P:1 FPD:0 Dst_Mode:1 Redir_hint:1 Trig_Mode:0 Dlvry_Mode:0 Avail:0 Vector:EF Dest:00000001 SID:00F7 SQ:0 SVT:1)
[ 0.085065] IOAPIC[0]: Preconfigured routing entry (2-2 -> IRQ 0 Level:0 ActiveLow:0)
[ 0.085074] IOAPIC[2]: Set IRTE entry (P:1 FPD:0 Dst_Mode:1 Redir_hint:1 Trig_Mode:0 Dlvry_Mode:0 Avail:0 Vector:EF Dest:00000001 SID:00F7 SQ:0 SVT:1)
[ 0.085092] IOAPIC[0]: Preconfigured routing entry (2-3 -> IRQ 3 Level:0 ActiveLow:0)
[ 0.085100] IOAPIC[2]: Set IRTE entry (P:1 FPD:0 Dst_Mode:1 Redir_hint:1 Trig_Mode:0 Dlvry_Mode:0 Avail:0 Vector:EF Dest:00000001 SID:00F7 SQ:0 SVT:1)
[ 0.085119] IOAPIC[0]: Preconfigured routing entry (2-4 -> IRQ 4 Level:0 ActiveLow:0)
[ 0.085131] IOAPIC[2]: Set IRTE entry (P:1 FPD:0 Dst_Mode:1 Redir_hint:1 Trig_Mode:0 Dlvry_Mode:0 Avail:0 Vector:EF Dest:00000001 SID:00F7 SQ:0 SVT:1)
[ 0.085149] IOAPIC[0]: Preconfigured routing entry (2-5 -> IRQ 5 Level:0 ActiveLow:0)
[ 0.085158] IOAPIC[2]: Set IRTE entry (P:1 FPD:0 Dst_Mode:1 Redir_hint:1 Trig_Mode:0 Dlvry_Mode:0 Avail:0 Vector:EF Dest:00000001 SID:00F7 SQ:0 SVT:1)
[ 0.085176] IOAPIC[0]: Preconfigured routing entry (2-6 -> IRQ 6 Level:0 ActiveLow:0)
[ 0.085184] IOAPIC[2]: Set IRTE entry (P:1 FPD:0 Dst_Mode:1 Redir_hint:1 Trig_Mode:0 Dlvry_Mode:0 Avail:0 Vector:EF Dest:00000001 SID:00F7 SQ:0 SVT:1)
[ 0.085203] IOAPIC[0]: Preconfigured routing entry (2-7 -> IRQ 7 Level:0 ActiveLow:0)
[ 0.085210] IOAPIC[2]: Set IRTE entry (P:1 FPD:0 Dst_Mode:1 Redir_hint:1 Trig_Mode:0 Dlvry_Mode:0 Avail:0 Vector:EF Dest:00000001 SID:00F7 SQ:0 SVT:1)
[ 0.085229] IOAPIC[0]: Preconfigured routing entry (2-8 -> IRQ 8 Level:0 ActiveLow:0)
[ 0.085237] IOAPIC[2]: Set IRTE entry (P:1 FPD:0 Dst_Mode:1 Redir_hint:1 Trig_Mode:0 Dlvry_Mode:0 Avail:0 Vector:EF Dest:00000001 SID:00F7 SQ:0 SVT:1)
[ 0.085255] IOAPIC[0]: Preconfigured routing entry (2-9 -> IRQ 9 Level:1 ActiveLow:0)
[ 0.085263] IOAPIC[2]: Set IRTE entry (P:1 FPD:0 Dst_Mode:1 Redir_hint:1 Trig_Mode:0 Dlvry_Mode:0 Avail:0 Vector:EF Dest:00000001 SID:00F7 SQ:0 SVT:1)
[ 0.085282] IOAPIC[0]: Preconfigured routing entry (2-10 -> IRQ 10 Level:0 ActiveLow:0)
[ 0.085291] IOAPIC[2]: Set IRTE entry (P:1 FPD:0 Dst_Mode:1 Redir_hint:1 Trig_Mode:0 Dlvry_Mode:0 Avail:0 Vector:EF Dest:00000001 SID:00F7 SQ:0 SVT:1)
[ 0.085309] IOAPIC[0]: Preconfigured routing entry (2-11 -> IRQ 11 Level:0 ActiveLow:0)
[ 0.085325] IOAPIC[2]: Set IRTE entry (P:1 FPD:0 Dst_Mode:1 Redir_hint:1 Trig_Mode:0 Dlvry_Mode:0 Avail:0 Vector:EF Dest:00000001 SID:00F7 SQ:0 SVT:1)
[ 0.085343] IOAPIC[0]: Preconfigured routing entry (2-12 -> IRQ 12 Level:0 ActiveLow:0)
[ 0.085351] IOAPIC[2]: Set IRTE entry (P:1 FPD:0 Dst_Mode:1 Redir_hint:1 Trig_Mode:0 Dlvry_Mode:0 Avail:0 Vector:EF Dest:00000001 SID:00F7 SQ:0 SVT:1)
[ 0.085369] IOAPIC[0]: Preconfigured routing entry (2-13 -> IRQ 13 Level:0 ActiveLow:0)
[ 0.085377] IOAPIC[2]: Set IRTE entry (P:1 FPD:0 Dst_Mode:1 Redir_hint:1 Trig_Mode:0 Dlvry_Mode:0 Avail:0 Vector:EF Dest:00000001 SID:00F7 SQ:0 SVT:1)
[ 0.085395] IOAPIC[0]: Preconfigured routing entry (2-14 -> IRQ 14 Level:0 ActiveLow:0)
[ 0.085403] IOAPIC[2]: Set IRTE entry (P:1 FPD:0 Dst_Mode:1 Redir_hint:1 Trig_Mode:0 Dlvry_Mode:0 Avail:0 Vector:EF Dest:00000001 SID:00F7 SQ:0 SVT:1)
[ 0.085422] IOAPIC[0]: Preconfigured routing entry (2-15 -> IRQ 15 Level:0 ActiveLow:0)
[ 0.085427] apic 2 pin 16 not connected
[ 0.085429] apic 2 pin 17 not connected
[ 0.085431] apic 2 pin 18 not connected
[ 0.085433] apic 2 pin 19 not connected
[ 0.085434] apic 2 pin 20 not connected
[ 0.085436] apic 2 pin 21 not connected
[ 0.085438] apic 2 pin 22 not connected
[ 0.085440] apic 2 pin 23 not connected
[ 0.085442] apic 2 pin 24 not connected
[ 0.085443] apic 2 pin 25 not connected
[ 0.085445] apic 2 pin 26 not connected
[ 0.085447] apic 2 pin 27 not connected
[ 0.085449] apic 2 pin 28 not connected
[ 0.085451] apic 2 pin 29 not connected
[ 0.085452] apic 2 pin 30 not connected
[ 0.085454] apic 2 pin 31 not connected
[ 0.085456] apic 2 pin 32 not connected
[ 0.085458] apic 2 pin 33 not connected
[ 0.085460] apic 2 pin 34 not connected
[ 0.085461] apic 2 pin 35 not connected
[ 0.085463] apic 2 pin 36 not connected
[ 0.085465] apic 2 pin 37 not connected
[ 0.085467] apic 2 pin 38 not connected
[ 0.085468] apic 2 pin 39 not connected
[ 0.085470] apic 2 pin 40 not connected
[ 0.085472] apic 2 pin 41 not connected
[ 0.085474] apic 2 pin 42 not connected
[ 0.085476] apic 2 pin 43 not connected
[ 0.085477] apic 2 pin 44 not connected
[ 0.085479] apic 2 pin 45 not connected
[ 0.085481] apic 2 pin 46 not connected
[ 0.085483] apic 2 pin 47 not connected
[ 0.085485] apic 2 pin 48 not connected
[ 0.085486] apic 2 pin 49 not connected
[ 0.085488] apic 2 pin 50 not connected
[ 0.085490] apic 2 pin 51 not connected
[ 0.085492] apic 2 pin 52 not connected
[ 0.085493] apic 2 pin 53 not connected
[ 0.085495] apic 2 pin 54 not connected
[ 0.085497] apic 2 pin 55 not connected
[ 0.085499] apic 2 pin 56 not connected
[ 0.085501] apic 2 pin 57 not connected
[ 0.085502] apic 2 pin 58 not connected
[ 0.085504] apic 2 pin 59 not connected
[ 0.085506] apic 2 pin 60 not connected
[ 0.085508] apic 2 pin 61 not connected
[ 0.085510] apic 2 pin 62 not connected
[ 0.085511] apic 2 pin 63 not connected
[ 0.085513] apic 2 pin 64 not connected
[ 0.085515] apic 2 pin 65 not connected
[ 0.085517] apic 2 pin 66 not connected
[ 0.085519] apic 2 pin 67 not connected
[ 0.085520] apic 2 pin 68 not connected
[ 0.085522] apic 2 pin 69 not connected
[ 0.085524] apic 2 pin 70 not connected
[ 0.085526] apic 2 pin 71 not connected
[ 0.085527] apic 2 pin 72 not connected
[ 0.085529] apic 2 pin 73 not connected
[ 0.085531] apic 2 pin 74 not connected
[ 0.085533] apic 2 pin 75 not connected
[ 0.085535] apic 2 pin 76 not connected
[ 0.085536] apic 2 pin 77 not connected
[ 0.085538] apic 2 pin 78 not connected
[ 0.085540] apic 2 pin 79 not connected
[ 0.085542] apic 2 pin 80 not connected
[ 0.085544] apic 2 pin 81 not connected
[ 0.085545] apic 2 pin 82 not connected
[ 0.085547] apic 2 pin 83 not connected
[ 0.085549] apic 2 pin 84 not connected
[ 0.085551] apic 2 pin 85 not connected
[ 0.085552] apic 2 pin 86 not connected
[ 0.085554] apic 2 pin 87 not connected
[ 0.085556] apic 2 pin 88 not connected
[ 0.085558] apic 2 pin 89 not connected
[ 0.085560] apic 2 pin 90 not connected
[ 0.085561] apic 2 pin 91 not connected
[ 0.085563] apic 2 pin 92 not connected
[ 0.085565] apic 2 pin 93 not connected
[ 0.085567] apic 2 pin 94 not connected
[ 0.085569] apic 2 pin 95 not connected
[ 0.085570] apic 2 pin 96 not connected
[ 0.085572] apic 2 pin 97 not connected
[ 0.085574] apic 2 pin 98 not connected
[ 0.085576] apic 2 pin 99 not connected
[ 0.085577] apic 2 pin 100 not connected
[ 0.085579] apic 2 pin 101 not connected
[ 0.085581] apic 2 pin 102 not connected
[ 0.085583] apic 2 pin 103 not connected
[ 0.085585] apic 2 pin 104 not connected
[ 0.085587] apic 2 pin 105 not connected
[ 0.085588] apic 2 pin 106 not connected
[ 0.085590] apic 2 pin 107 not connected
[ 0.085592] apic 2 pin 108 not connected
[ 0.085594] apic 2 pin 109 not connected
[ 0.085595] apic 2 pin 110 not connected
[ 0.085597] apic 2 pin 111 not connected
[ 0.085599] apic 2 pin 112 not connected
[ 0.085601] apic 2 pin 113 not connected
[ 0.085603] apic 2 pin 114 not connected
[ 0.085604] apic 2 pin 115 not connected
[ 0.085606] apic 2 pin 116 not connected
[ 0.085608] apic 2 pin 117 not connected
[ 0.085610] apic 2 pin 118 not connected
[ 0.085611] apic 2 pin 119 not connected
[ 0.439206] ACPI: Using IOAPIC for interrupt routing
[ 0.888327] IOAPIC[2]: Set IRTE entry (P:1 FPD:0 Dst_Mode:1 Redir_hint:1 Trig_Mode:0 Dlvry_Mode:0 Avail:0 Vector:EF Dest:00000001 SID:00F7 SQ:0 SVT:1)
[ 0.888340] IOAPIC[0]: Preconfigured routing entry (2-16 -> IRQ 16 Level:1 ActiveLow:1)
[ 0.924695] IOAPIC[2]: Set IRTE entry (P:1 FPD:0 Dst_Mode:1 Redir_hint:1 Trig_Mode:0 Dlvry_Mode:0 Avail:0 Vector:EF Dest:00000001 SID:00F7 SQ:0 SVT:1)
[ 0.924712] IOAPIC[0]: Preconfigured routing entry (2-18 -> IRQ 18 Level:1 ActiveLow:1)
[ 0.926473] IOAPIC[2]: Set IRTE entry (P:1 FPD:0 Dst_Mode:1 Redir_hint:1 Trig_Mode:0 Dlvry_Mode:0 Avail:0 Vector:EF Dest:00000001 SID:00F7 SQ:0 SVT:1)
[ 0.926487] IOAPIC[0]: Preconfigured routing entry (2-16 -> IRQ 16 Level:1 ActiveLow:1)
[ 0.927996] IOAPIC[2]: Set IRTE entry (P:1 FPD:0 Dst_Mode:1 Redir_hint:1 Trig_Mode:0 Dlvry_Mode:0 Avail:0 Vector:EF Dest:00000001 SID:00F7 SQ:0 SVT:1)
[ 0.928009] IOAPIC[0]: Preconfigured routing entry (2-19 -> IRQ 19 Level:1 ActiveLow:1)
[ 0.950816] ... APIC ID: 00000000 (0)
[ 0.950828] ... APIC VERSION: 01060015
[ 0.950869] number of IO-APIC #2 registers: 120.
[ 0.950870] testing the IO APIC.......................
[ 0.950910] IO APIC #2......
[ 0.950913] ....... : physical APIC id: 02
[ 0.950921] ....... : IO APIC version: 20
[ 0.950926] IOAPIC 0:
[ 2.325225] IOAPIC[2]: Set IRTE entry (P:1 FPD:0 Dst_Mode:1 Redir_hint:1 Trig_Mode:0 Dlvry_Mode:0 Avail:0 Vector:EF Dest:00000001 SID:00F7 SQ:0 SVT:1)
[ 2.325240] IOAPIC[0]: Preconfigured routing entry (2-27 -> IRQ 27 Level:1 ActiveLow:1)
[ 2.351687] IOAPIC[2]: Set IRTE entry (P:1 FPD:0 Dst_Mode:1 Redir_hint:1 Trig_Mode:0 Dlvry_Mode:0 Avail:0 Vector:EF Dest:00000001 SID:00F7 SQ:0 SVT:1)
[ 2.351698] IOAPIC[0]: Preconfigured routing entry (2-40 -> IRQ 40 Level:1 ActiveLow:1)
[ 2.367659] IOAPIC[2]: Set IRTE entry (P:1 FPD:0 Dst_Mode:1 Redir_hint:1 Trig_Mode:0 Dlvry_Mode:0 Avail:0 Vector:EF Dest:00000001 SID:00F7 SQ:0 SVT:1)
[ 2.367669] IOAPIC[0]: Preconfigured routing entry (2-29 -> IRQ 29 Level:1 ActiveLow:1)
[ 2.385216] IOAPIC[2]: Set IRTE entry (P:1 FPD:0 Dst_Mode:1 Redir_hint:1 Trig_Mode:0 Dlvry_Mode:0 Avail:0 Vector:EF Dest:00000001 SID:00F7 SQ:0 SVT:1)
[ 2.385228] IOAPIC[0]: Preconfigured routing entry (2-33 -> IRQ 33 Level:1 ActiveLow:1)
[ 2.414104] IOAPIC[2]: Set IRTE entry (P:1 FPD:0 Dst_Mode:1 Redir_hint:1 Trig_Mode:0 Dlvry_Mode:0 Avail:0 Vector:EF Dest:00000001 SID:00F7 SQ:0 SVT:1)
[ 2.414113] IOAPIC[0]: Preconfigured routing entry (2-31 -> IRQ 31 Level:1 ActiveLow:1)
[ 2.427592] IOAPIC[2]: Set IRTE entry (P:1 FPD:0 Dst_Mode:1 Redir_hint:1 Trig_Mode:0 Dlvry_Mode:0 Avail:0 Vector:EF Dest:00000001 SID:00F7 SQ:0 SVT:1)
[ 2.427603] IOAPIC[0]: Preconfigured routing entry (2-32 -> IRQ 32 Level:1 ActiveLow:1)
[ 2.534690] IOAPIC[2]: Set IRTE entry (P:1 FPD:0 Dst_Mode:1 Redir_hint:1 Trig_Mode:0 Dlvry_Mode:0 Avail:0 Vector:EF Dest:00000001 SID:00F7 SQ:0 SVT:1)
[ 2.534700] IOAPIC[0]: Preconfigured routing entry (2-37 -> IRQ 37 Level:1 ActiveLow:1)