我升级到 Ubuntu 13.04，有时在启动时显示一条消息：
Disabling IRQ #16
当出现此消息时，我必须重新启动，因为鼠标转动非常慢并且无法正确响应。我猜想这是 IRQ 冲突问题，但我该如何解决它呢？
SO: 3.8.0-19-generic #29-Ubuntu SMP Wed Apr 17 18:16:28 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux
Motherboard: GA-H77M-D3H
Ethernet: Realtek Semiconductor Co., Ltd. RTL8169 PCI Gigabit Ethernet Controller (rev 10)
消息：
我移除了 RTL8169 外部以太网，以简化错误可能性。没有此卡，我测试了不同的 BIOS 配置，结果是：
- 当我启用“英特尔虚拟化技术“在BIOS中。
- 当我在 BIOS 中禁用集成以太网时，主板在重启时会冻结，此时会显示技嘉徽标。我必须取出电池两分钟才能恢复 BIOS。
我在 dmesg 输出中发现的其他可能的症状：
很多条目都有这种模式：
*BAD*gran_size: 64K chunk_size: 16M num_reg: 10 lose cover RAM: -8M
...........
...........
很多条目都具有这种模式：
[ 0.000000] total RAM covered: 16302M
[ 0.000000] gran_size: 64K chunk_size: 64K num_reg: 10 lose cover RAM: 246M
[ 0.000000] gran_size: 64K chunk_size: 128K num_reg: 10 lose cover RAM: 246M
[ 0.000000] gran_size: 64K chunk_size: 256K num_reg: 10 lose cover RAM: 246M
[ 0.000000] gran_size: 64K chunk_size: 512K num_reg: 10 lose cover RAM: 246M
[ 0.000000] gran_size: 64K chunk_size: 1M num_reg: 10 lose cover RAM: 246M
[ 0.000000] gran_size: 64K chunk_size: 2M num_reg: 10 lose cover RAM: 246M
[ 0.000000] gran_size: 64K chunk_size: 4M num_reg: 10 lose cover RAM: 246M
[ 0.000000] gran_size: 64K chunk_size: 8M num_reg: 10 lose cover RAM: 246M
[ 0.000000] *BAD*gran_size: 64K chunk_size: 16M num_reg: 10 lose cover RAM: -8M
[ 0.000000] *BAD*gran_size: 64K chunk_size: 32M num_reg: 10 lose cover RAM: -8M
[ 0.000000] *BAD*gran_size: 64K chunk_size: 64M num_reg: 10 lose cover RAM: -8M
[ 0.000000] gran_size: 64K chunk_size: 128M num_reg: 10 lose cover RAM: 0G
...........
...........
其他可能的错误：
[ 18.518043] ACPI Warning: 0x0000000000000428-0x000000000000042f SystemIO conflicts with Region \PMIO 1 (20121018/utaddress-251)
[ 18.518048] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver
[ 18.518051] ACPI Warning: 0x0000000000000530-0x000000000000053f SystemIO conflicts with Region \GPIO 1 (20121018/utaddress-251)
[ 18.518054] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver
[ 18.518056] ACPI Warning: 0x0000000000000500-0x000000000000052f SystemIO conflicts with Region \LED_ 1 (20121018/utaddress-251)
[ 18.518076] ACPI Warning: 0x0000000000000500-0x000000000000052f SystemIO conflicts with Region \GPIO 2 (20121018/utaddress-251)
[ 18.518079] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver
[ 18.518080] lpc_ich: Resource conflict(s) found affecting gpio_ich
跟踪如何禁用IRQ16：
[ 0.907977] sd 0:0:0:0: [sda] Attached SCSI disk
[ 0.936700] usb 1-1: New USB device found, idVendor=8087, idProduct=0024
[ 0.936701] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 0.936813] hub 1-1:1.0: USB hub found
[ 0.936841] hub 1-1:1.0: 6 ports detected
[ 1.048329] usb 2-1: new high-speed USB device number 2 using ehci-pci
[ 1.062340] irq 16: nobody cared (try booting with the "irqpoll" option)
[ 1.062342] Pid: 0, comm: swapper/4 Tainted: GF 3.8.0-19-generic #29-Ubuntu
[ 1.062343] Call Trace:
[ 1.062344] <IRQ> [<ffffffff810ecbcd>] __report_bad_irq+0x3d/0xe0
[ 1.062350] [<ffffffff810ed092>] note_interrupt+0x1c2/0x210
[ 1.062353] [<ffffffff815735bb>] ? cpuidle_wrap_enter+0x5b/0xa0
[ 1.062354] [<ffffffff81572b70>] ? centrino_target+0x370/0x370
[ 1.062356] [<ffffffff810ea807>] handle_irq_event_percpu+0xa7/0x1f0
[ 1.062357] [<ffffffff81572b70>] ? centrino_target+0x370/0x370
[ 1.062359] [<ffffffff810ea99e>] handle_irq_event+0x4e/0x80
[ 1.062360] [<ffffffff810edbda>] handle_fasteoi_irq+0x5a/0x100
[ 1.062363] [<ffffffff810164ce>] handle_irq+0x1e/0x30
[ 1.062366] [<ffffffff816d54aa>] do_IRQ+0x5a/0xe0
[ 1.062367] [<ffffffff816cb4ad>] common_interrupt+0x6d/0x6d
[ 1.062368] <EOI> [<ffffffff815735bb>] ? cpuidle_wrap_enter+0x5b/0xa0
[ 1.062370] [<ffffffff81573610>] cpuidle_enter_tk+0x10/0x20
[ 1.062372] [<ffffffff81573205>] cpuidle_idle_call+0xa5/0x260
[ 1.062374] [<ffffffff8101d5af>] cpu_idle+0xaf/0x120
[ 1.062377] [<ffffffff816b4e0e>] start_secondary+0x1e0/0x1e5
[ 1.062377] handlers:
[ 1.062380] [<ffffffff814f8cb0>] usb_hcd_irq
[ 1.062381] Disabling IRQ #16
这是 /proc/interrupts 的内容
当 IRQ16 未禁用时：
CPU0 CPU1 CPU2 CPU3 CPU4 CPU5 CPU6 CPU7
0: 43 0 0 0 0 0 0 0 IR-IO-APIC-edge timer
1: 2 0 0 0 0 0 0 0 IR-IO-APIC-edge i8042
7: 0 0 0 0 0 0 0 0 IR-IO-APIC-edge parport0
8: 0 0 0 0 1 0 0 0 IR-IO-APIC-edge rtc0
9: 0 0 0 0 0 0 0 0 IR-IO-APIC-fasteoi acpi
12: 3 0 0 0 1 0 0 0 IR-IO-APIC-edge i8042
16: 1986 36 308 8342 226 56 8481 154948 IR-IO-APIC-fasteoi ehci_hcd:usb1
18: 59 63470 12 29 42 68182 24 31 IR-IO-APIC-fasteoi eth1
23: 3724 2201 59 1529 74045 49806 453 19695 IR-IO-APIC-fasteoi ehci_hcd:usb2
40: 0 0 0 0 0 0 0 0 DMAR_MSI-edge dmar0
41: 0 0 0 0 0 0 0 0 DMAR_MSI-edge dmar1
42: 0 0 0 0 0 0 0 0 IR-PCI-MSI-edge xhci_hcd
43: 8436 7375 4020 4555 8608 28721 20001 20889 IR-PCI-MSI-edge ahci
44: 9 1 0 0 0 4 1 0 IR-PCI-MSI-edge mei
45: 625228 20562 17848 17739 58665 42944 36267 32186 IR-PCI-MSI-edge i915
46: 159 4 6 6 523 121 1 8 IR-PCI-MSI-edge snd_hda_intel
47: 0 0 0 0 0 0 0 0 IR-PCI-MSI-edge eth0
48: 0 0 0 0 0 0 0 0 IR-PCI-MSI-edge eth0-TR-0
49: 0 0 0 0 0 0 0 0 IR-PCI-MSI-edge eth0-TR-1
50: 0 0 0 0 0 0 0 0 IR-PCI-MSI-edge eth0-TR-2
51: 0 0 0 0 0 0 0 0 IR-PCI-MSI-edge eth0-TR-3
52: 0 0 0 0 0 0 0 0 IR-PCI-MSI-edge eth0-R-4
53: 0 0 0 0 0 0 0 0 IR-PCI-MSI-edge eth0-R-5
54: 0 0 0 0 0 0 0 0 IR-PCI-MSI-edge eth0-R-6
55: 0 0 0 0 0 0 0 0 IR-PCI-MSI-edge eth0-R-7
NMI: 874 766 742 713 293 316 324 345 Non-maskable interrupts
LOC: 759575 759342 748379 849342 210905 248734 229921 283703 Local timer interrupts
SPU: 0 0 0 0 0 0 0 0 Spurious interrupts
PMI: 874 766 742 713 293 316 324 345 Performance monitoring interrupts
IWI: 0 0 0 0 0 0 0 0 IRQ work interrupts
RTR: 0 0 0 0 0 0 0 0 APIC ICR read retries
RES: 295355 94827 9724 31512 2742 2897 2222 6768 Rescheduling interrupts
CAL: 508 543 499 543 522 540 515 515 Function call interrupts
TLB: 21058 21800 15397 13086 7965 8805 8672 6416 TLB shootdowns
TRM: 0 0 0 0 0 0 0 0 Thermal event interrupts
THR: 0 0 0 0 0 0 0 0 Threshold APIC interrupts
MCE: 0 0 0 0 0 0 0 0 Machine check exceptions
MCP: 38 38 38 38 38 38 38 38 Machine check polls
ERR: 0
MIS: 0
当 IRQ16 被禁用且鼠标无法正确响应时：
CPU0 CPU1 CPU2 CPU3 CPU4 CPU5 CPU6 CPU7
0: 43 0 0 0 0 0 0 0 IR-IO-APIC-edge timer
1: 0 0 1 0 1 0 0 0 IR-IO-APIC-edge i8042
7: 0 0 0 0 0 0 0 0 IR-IO-APIC-edge parport0
8: 0 1 0 0 0 0 0 0 IR-IO-APIC-edge rtc0
9: 0 0 0 0 0 0 0 0 IR-IO-APIC-fasteoi acpi
12: 2 0 0 0 0 1 0 1 IR-IO-APIC-edge i8042
16: 11008 789 530 240 43614 25676 17062 1082 IR-IO-APIC-fasteoi ehci_hcd:usb1
18: 1803 4 6 22 2077 8 20 23 IR-IO-APIC-fasteoi eth1
23: 207 30 4 16 276 942 34 10 IR-IO-APIC-fasteoi ehci_hcd:usb2
40: 0 0 0 0 0 0 0 0 DMAR_MSI-edge dmar0
41: 0 0 0 0 0 0 0 0 DMAR_MSI-edge dmar1
42: 0 0 0 0 0 0 0 0 IR-PCI-MSI-edge xhci_hcd
43: 7502 297 1784 50 1049 1504 9829 57 IR-PCI-MSI-edge ahci
44: 5 0 0 0 8 2 0 0 IR-PCI-MSI-edge mei
45: 6015 127 371 58 366 170 575 140 IR-PCI-MSI-edge i915
46: 134 20 4 3 185 454 23 9 IR-PCI-MSI-edge snd_hda_intel
47: 0 0 0 0 0 0 0 0 IR-PCI-MSI-edge eth0
48: 0 0 0 0 0 0 0 0 IR-PCI-MSI-edge eth0-TR-0
49: 0 0 0 0 0 0 0 0 IR-PCI-MSI-edge eth0-TR-1
50: 0 0 0 0 0 0 0 0 IR-PCI-MSI-edge eth0-TR-2
51: 0 0 0 0 0 0 0 0 IR-PCI-MSI-edge eth0-TR-3
52: 0 0 0 0 0 0 0 0 IR-PCI-MSI-edge eth0-R-4
53: 0 0 0 0 0 0 0 0 IR-PCI-MSI-edge eth0-R-5
54: 0 0 0 0 0 0 0 0 IR-PCI-MSI-edge eth0-R-6
55: 0 0 0 0 0 0 0 0 IR-PCI-MSI-edge eth0-R-7
NMI: 7 4 4 4 6 3 9 1 Non-maskable interrupts
LOC: 9814 7028 5981 6435 7513 4103 9617 3359 Local timer interrupts
SPU: 0 0 0 0 0 0 0 0 Spurious interrupts
PMI: 7 4 4 4 6 3 9 1 Performance monitoring interrupts
IWI: 0 0 0 0 0 0 0 0 IRQ work interrupts
RTR: 0 0 0 0 0 0 0 0 APIC ICR read retries
RES: 2780 1082 426 299 290 258 308 189 Rescheduling interrupts
CAL: 539 533 548 566 447 560 547 552 Function call interrupts
TLB: 551 438 367 491 368 553 1703 291 TLB shootdowns
TRM: 0 0 0 0 0 0 0 0 Thermal event interrupts
THR: 0 0 0 0 0 0 0 0 Threshold APIC interrupts
MCE: 0 0 0 0 0 0 0 0 Machine check exceptions
MCP: 2 2 2 2 2 2 2 2 Machine check polls
当 IRQ16 被禁用且鼠标正确响应时（新状态）：
CPU0 CPU1 CPU2 CPU3 CPU4 CPU5 CPU6 CPU7
0: 22 0 0 0 0 0 0 0 IR-IO-APIC-edge timer
1: 1 0 0 0 0 1 0 0 IR-IO-APIC-edge i8042
7: 0 0 0 0 0 0 0 0 IR-IO-APIC-edge parport0
8: 1 0 0 0 0 0 0 0 IR-IO-APIC-edge rtc0
9: 0 0 0 0 0 0 0 0 IR-IO-APIC-fasteoi acpi
12: 2 0 0 0 1 0 0 1 IR-IO-APIC-edge i8042
16: 44189 20 7 2 44042 10916 697 128 IR-IO-APIC-fasteoi ehci_hcd:usb1
18: 69 4 11 8 107 20 14 14 IR-IO-APIC-fasteoi eth1
19: 5264 244 939 75 539 567 2995 149 IR-IO-APIC-fasteoi ata_piix, ata_piix
23: 340 32 7 2 305 2821 17 13 IR-IO-APIC-fasteoi ehci_hcd:usb2
40: 0 0 0 0 0 0 0 0 DMAR_MSI-edge dmar0
41: 0 0 0 0 0 0 0 0 DMAR_MSI-edge dmar1
42: 14 0 157 14 1 3 698 283 IR-PCI-MSI-edge xhci_hcd
43: 9 0 2 0 0 0 4 0 IR-PCI-MSI-edge mei
44: 621 119 226 72 101 141 619 116 IR-PCI-MSI-edge i915
45: 62 15 152 1 362 143 54 43 IR-PCI-MSI-edge snd_hda_intel
46: 0 0 0 0 0 0 0 0 IR-PCI-MSI-edge eth0
47: 0 0 0 0 0 0 0 0 IR-PCI-MSI-edge eth0-TR-0
48: 0 0 0 0 0 0 0 0 IR-PCI-MSI-edge eth0-TR-1
49: 0 0 0 0 0 0 0 0 IR-PCI-MSI-edge eth0-TR-2
50: 0 0 0 0 0 0 0 0 IR-PCI-MSI-edge eth0-TR-3
51: 0 0 0 0 0 0 0 0 IR-PCI-MSI-edge eth0-R-4
52: 0 0 0 0 0 0 0 0 IR-PCI-MSI-edge eth0-R-5
53: 0 0 0 0 0 0 0 0 IR-PCI-MSI-edge eth0-R-6
54: 0 0 0 0 0 0 0 0 IR-PCI-MSI-edge eth0-R-7
NMI: 7 5 3 3 3 1 3 2 Non-maskable interrupts
LOC: 9085 7261 6749 6803 9853 5303 7399 4982 Local timer interrupts
SPU: 0 0 0 0 0 0 0 0 Spurious interrupts
PMI: 7 5 3 3 3 1 3 2 Performance monitoring interrupts
IWI: 0 0 0 0 0 0 0 0 IRQ work interrupts
RTR: 0 0 0 0 0 0 0 0 APIC ICR read retries
RES: 1791 870 339 303 245 217 350 211 Rescheduling interrupts
CAL: 489 487 559 563 490 536 567 488 Function call interrupts
TLB: 435 277 544 370 320 301 685 316 TLB shootdowns
TRM: 0 0 0 0 0 0 0 0 Thermal event interrupts
THR: 0 0 0 0 0 0 0 0 Threshold APIC interrupts
MCE: 0 0 0 0 0 0 0 0 Machine check exceptions
MCP: 2 2 2 2 2 2 2 2 Machine check polls
新闻：我使用最新的 BIOS 进行了测试。错误仍然存在，但 dmesg 中出现减号错误。例如，*BAD*gran_size 已消失。好奇：GIGAByte 网站上的固件文件是 .exe !!!!，而最新的 BIOS 映像已有 10 个月历史测试版版本！
答案1
最终解决方案：用华硕 P8H77-M 替换技嘉 GA-H77M-D3H