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andretti
Tux's lil' helper
Joined: 25 Feb 2007
Posts: 94
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 Posted: Wed Nov 20, 2013 1:56 pm Post subject: All PCI Interrupt Links are disabled? |
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I noticed these boot dmesg in 2 EFI enabled PCs. Should I be concerned that all PCI Interrupt Links are disabled?
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[ 0.168347] pci_bus 0000:00: on NUMA node 0
[ 0.168401] acpi PNP0A08:00: Requesting ACPI _OSC control (0x1d)
[ 0.168533] acpi PNP0A08:00: ACPI _OSC control (0x18) granted
[ 0.168859] ACPI: PCI Interrupt Link [LNKA] (IRQs 3 4 5 6 10 11 12 14 15) *0, disabled.
[ 0.168893] ACPI: PCI Interrupt Link [LNKB] (IRQs 3 4 5 6 10 11 12 14 15) *0, disabled.
[ 0.168926] ACPI: PCI Interrupt Link [LNKC] (IRQs 3 4 5 6 10 11 12 14 15) *0, disabled.
[ 0.168958] ACPI: PCI Interrupt Link [LNKD] (IRQs 3 4 5 6 10 11 12 14 15) *0, disabled.
[ 0.168990] ACPI: PCI Interrupt Link [LNKE] (IRQs 3 4 5 6 10 11 12 14 15) *0, disabled.
[ 0.169021] ACPI: PCI Interrupt Link [LNKF] (IRQs 3 4 5 6 10 11 12 14 15) *0, disabled.
[ 0.169053] ACPI: PCI Interrupt Link [LNKG] (IRQs 3 4 5 6 10 11 12 14 15) *0, disabled.
[ 0.169086] ACPI: PCI Interrupt Link [LNKH] (IRQs 3 4 5 6 10 11 12 14 15) *0, disabled.
[ 0.169238] ACPI: Enabled 4 GPEs in block 00 to 3F
[ 0.169243] acpi root: \_SB_.PCI0 notify handler is installed
[ 0.169280] Found 1 acpi root devices
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However, there seems to be interrupts in /proc/interrupts
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CPU0 CPU1 CPU2 CPU3
0: 75 0 0 0 IR-IO-APIC-edge timer
1: 3 0 0 0 IR-IO-APIC-edge i8042
8: 1 0 0 0 IR-IO-APIC-edge rtc0
9: 0 0 0 0 IR-IO-APIC-fasteoi acpi
12: 4 0 0 0 IR-IO-APIC-edge i8042
16: 186545226 65074 39718 40249 IR-IO-APIC-fasteoi ehci_hcd:usb1, saa7164[0]
18: 0 0 0 0 IR-IO-APIC-fasteoi cx88[0], cx88[0]
23: 13283 337 4 151 IR-IO-APIC-fasteoi ehci_hcd:usb2
40: 0 0 0 0 DMAR_MSI-edge dmar0
41: 0 0 0 0 DMAR_MSI-edge dmar1
43: 27069 260 320 153 IR-PCI-MSI-edge i915
44: 151200 21414 13312 12540 IR-PCI-MSI-edge ahci
45: 3602015 200246 94055 80706 IR-PCI-MSI-edge eth0
46: 0 0 0 0 IR-PCI-MSI-edge xhci_hcd
47: 2147955 14703 5505 4190 IR-PCI-MSI-edge snd_hda_intel
NMI: 0 0 0 0 Non-maskable interrupts
LOC: 168580214 10066266 8701516 10395622 Local timer interrupts
SPU: 0 0 0 0 Spurious interrupts
PMI: 0 0 0 0 Performance monitoring interrupts
IWI: 153125 167233 176709 155275 IRQ work interrupts
RTR: 0 0 0 0 APIC ICR read retries
RES: 3693515 4928948 5254751 5094374 Rescheduling interrupts
CAL: 167 2138 2224 2234 Function call interrupts
TLB: 73770 70010 82837 87611 TLB shootdowns
TRM: 0 0 0 0 Thermal event interrupts
THR: 0 0 0 0 Threshold APIC interrupts
MCE: 0 0 0 0 Machine check exceptions
MCP: 15557 15557 15557 15557 Machine check polls
ERR: 0
MIS: 0
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Anyone experienced similar situation as above?
Thanks |
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aCOSwt
Bodhisattva
Joined: 19 Oct 2007
Posts: 2537
Location: Hilbert space
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| Posted: Sat Nov 23, 2013 5:20 pm Post subject: Re: All PCI Interrupt Links are disabled? |
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| andretti wrote: | | Anyone experienced similar situation as above? |
Everybody I believe!
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andretti
Tux's lil' helper
Joined: 25 Feb 2007
Posts: 94
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| Posted: Thu Nov 28, 2013 1:36 pm Post subject: |
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This is interesting... Not all PCI Interrupt Links were disabled when the same PC was booted from EFI CSM BIOS.
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[ 0.759367] acpi PNP0A08:00: Requesting ACPI _OSC control (0x1d)
[ 0.759819] acpi PNP0A08:00: ACPI _OSC control (0x1d) granted
[ 0.760743] ACPI: PCI Interrupt Link [LNKA] (IRQs 3 4 5 6 10 *11 12 14 15)
[ 0.761331] ACPI: PCI Interrupt Link [LNKB] (IRQs 3 4 5 6 10 11 12 14 15) *0, disabled.
[ 0.762029] ACPI: PCI Interrupt Link [LNKC] (IRQs *3 4 5 6 10 11 12 14 15)
[ 0.762593] ACPI: PCI Interrupt Link [LNKD] (IRQs 3 4 5 6 *10 11 12 14 15)
[ 0.763155] ACPI: PCI Interrupt Link [LNKE] (IRQs 3 4 5 6 10 11 12 14 15) *0, disabled.
[ 0.763852] ACPI: PCI Interrupt Link [LNKF] (IRQs 3 4 5 6 10 11 12 14 15) *0, disabled.
[ 0.764593] ACPI: PCI Interrupt Link [LNKG] (IRQs 3 4 *5 6 10 11 12 14 15)
[ 0.765180] ACPI: PCI Interrupt Link [LNKH] (IRQs 3 *4 5 6 10 11 12 14 15)
[ 0.766309] ACPI: Enabled 3 GPEs in block 00 to 7F
[ 0.766506] acpi root: \_SB_.PCI0 notify handler is installed
[ 0.766576] Found 1 acpi root devices
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platojones
Veteran
Joined: 23 Oct 2002
Posts: 1602
Location: Just over the horizon
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| Posted: Thu Nov 28, 2013 7:16 pm Post subject: |
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I don't have any disabled. Running 3.12.1-gentoo on ASUS RIVE, with UEFI bios:
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[ 0.289334] acpi PNP0A03:00: ACPI _OSC support notification failed, disabling PCIe ASPM
[ 0.291055] ACPI: PCI Interrupt Link [LNKA] (IRQs 3 4 5 6 7 10 *11 12 14 15)
[ 0.291092] ACPI: PCI Interrupt Link [LNKB] (IRQs 3 4 5 6 7 *10 11 12 14 15)
[ 0.291126] ACPI: PCI Interrupt Link [LNKC] (IRQs 3 4 5 6 11 12 14 *15)
[ 0.291160] ACPI: PCI Interrupt Link [LNKD] (IRQs 3 *4 5 6 10 11 12 14 15)
[ 0.291195] ACPI: PCI Interrupt Link [LNKE] (IRQs 3 4 5 6 7 10 11 12 *14 15)
[ 0.291229] ACPI: PCI Interrupt Link [LNKF] (IRQs 3 4 *5 6 7 10 11 12 14 15)
[ 0.291263] ACPI: PCI Interrupt Link [LNKG] (IRQs *3 4 5 6 7 10 11 12 14 15)
[ 0.291297] ACPI: PCI Interrupt Link [LNKH] (IRQs 3 4 5 6 *7 10 11 12 14 15)
[ 0.291458] ACPI: Enabled 3 GPEs in block 00 to 3F
[ 0.291458] ACPI: \_SB_.PCI0: notify handler is installed
[ 0.291458] ACPI: \_SB_.UNC0: notify handler is installed
[ 0.292023] PCI: Using ACPI for IRQ routing
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Of course, I have no idea what it means if they are disabled either. |
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