[linux] Disabling IRQ

Juraj Remenec remenec na gmail.com
Pondělí Únor 27 17:18:57 CET 2012


Pri irqpoll sa deje to iste. Akurat, ze pred tym ako dojde k Disable, tak
cely stron na 5-10 sekund uplne zatuhne (nefunguje ani kurzor v Bashi).
less /proc/interrupts
--------------------------------------------------------------------------------------------------
           CPU0       CPU1       CPU2       CPU3
  0:         96          0          0          0  IR-IO-APIC-edge      timer
  1:       1979          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
 16:    9100116          0          0          0  IR-IO-APIC-fasteoi
ehci_hcd:usb1, nouveau, eth1
 17:     400093          0          0          0  IR-IO-APIC-fasteoi   HDA
Intel, eth4
 18:     200067          0          0          0  IR-IO-APIC-fasteoi   eth5
 23:         61          0          0          0  IR-IO-APIC-fasteoi
ehci_hcd:usb2
 24:          0          0          0          0  DMAR_MSI-edge      dmar0
 29:     569397          0          0          0  IR-PCI-MSI-edge
eth3-rx-0
 30:     419921          0          0          0  IR-PCI-MSI-edge
eth3-tx-0
 31:          6          0          0          0  IR-PCI-MSI-edge      eth3
 32:    2329139          0          0          0  IR-PCI-MSI-edge      eth2
 33:    1022274          0          0          0  IR-PCI-MSI-edge      ahci
 34:    1832445          0          0          0  IR-PCI-MSI-edge
eth0-rx-0
 35:    1740641          0          0          0  IR-PCI-MSI-edge
eth0-tx-0
 36:          5          0          0          0  IR-PCI-MSI-edge      eth0
NMI:          0          0          0          0   Non-maskable interrupts
LOC:    1535098     702675     464629     288219   Local timer interrupts
SPU:          0          0          0          0   Spurious interrupts
PMI:          0          0          0          0   Performance monitoring
interrupts
PND:          0          0          0          0   Performance pending work
RES:     100566     104118      40186      14179   Rescheduling interrupts
CAL:         18        149        148        151   Function call interrupts
TLB:        718       2241       2178        702   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:         56         56         56         56   Machine check polls
ERR:          0
MIS:          0
---------------------------------------------------------------------------------------------------------

Ze by som tam mal privela zariadeni? Skusim odobrat jednu sietovku?
J.

2012/2/27 Matus UHLAR - fantomas <uhlar at fantomas.sk>

> On 27.02.12 13:13, Juraj Remenec wrote:
>
>> V organizacii ktorej pracujem som vzdy ako server pouzival male PCcko.
>> Nedavno ma situacia dotlacila k tomu, ze som kupil dalsie, vykonnejsie PC,
>> don natrieskal 5 sietovych kariet + jedna integrovana. Nainstaloval noveho
>> Debiana, vsetko pozapajal a pustil.
>> No, behom prevadzky mi po restarte naskakuju taketo hlasky:
>>
>> -=-=-=-=--=-=-=-=-=-=-=-=-=-=-**=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-**
>> =-=-=-=-=--==-=-=-=-=-=-=-=--=**-=-=-=-=-=-=-
>> Feb 27 12:12:40 altar kernel: [  239.825508] irq 18: nobody cared (try
>> booting with the "irqpoll" option)
>>
>
> a skusil si nabootovat s irqpoll optionom?
> [...]
>
>
>  Feb 27 12:12:40 altar kernel: [  239.826673] Disabling IRQ #18
>> -=-=-=-=--=-=-=-=-=-=-=-=-=-=-**=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-**
>> =-=-=-=-=--==-=-=-=-=-=-=-=--=**-=-=-=-=-=-=-
>>
>> Vzdy vypne dve IRQcka. Nie vzdy v rovnakom case.
>> Napriek tomu, zda sa, ze vsetky sietove karty funguju. Takze nechapem o
>> com
>> tato hlaska vlastne je.
>> Na druhej strane - objavuje sa na jednej z kariet vysoky ping. Nie je
>> mozne, aby som mal na router, ktory je pripojeny priamo k sietovej karte -
>> 10 - 100ms pingy.
>> Takze tak nejak premyslam, ci to s tym nema nejaku suvislost.
>>
>
> velmi pravdepodobne to je prave tym. skus ten irqpoll ak nepomoze,
> odporucal by som skusit multiportovu kartu. Alebo sa pohrat s kartami: co
> hovori car /proc/interrupts ?
>
> --
> Matus UHLAR - fantomas, uhlar at fantomas.sk ; http://www.fantomas.sk/
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