[linux] Disabling IRQ

Juraj Remenec remenec na gmail.com
Pondělí Únor 27 13:13:23 CET 2012


Caute.
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)
Feb 27 12:12:40 altar kernel: [  239.825881] Pid: 0, comm: swapper Not
tainted 2.6.32-5-amd64 #1
Feb 27 12:12:40 altar kernel: [  239.825882] Call Trace:
Feb 27 12:12:40 altar kernel: [  239.825883]  <IRQ>  [<ffffffff8106c641>] ?
ktime_get+0x5c/0xb7
Feb 27 12:12:40 altar kernel: [  239.825890]  [<ffffffff81095d89>] ?
__report_bad_irq+0x30/0x7d
Feb 27 12:12:40 altar kernel: [  239.825892]  [<ffffffff81095edb>] ?
note_interrupt+0x105/0x16e
Feb 27 12:12:40 altar kernel: [  239.825894]  [<ffffffff81096540>] ?
handle_fasteoi_irq+0x93/0xb5
Feb 27 12:12:40 altar kernel: [  239.825897]  [<ffffffff8101327f>] ?
handle_irq+0x17/0x1d
Feb 27 12:12:40 altar kernel: [  239.825898]  [<ffffffff810128d9>] ?
do_IRQ+0x57/0xb6
Feb 27 12:12:40 altar kernel: [  239.825900]  [<ffffffff810114d3>] ?
ret_from_intr+0x0/0x11
Feb 27 12:12:40 altar kernel: [  239.825901]  <EOI>  [<ffffffffa0232509>] ?
acpi_idle_enter_bm+0x27d/0x2af [processor]
Feb 27 12:12:40 altar kernel: [  239.825910]  [<ffffffffa0232502>] ?
acpi_idle_enter_bm+0x276/0x2af [processor]
Feb 27 12:12:40 altar kernel: [  239.825913]  [<ffffffff8123a07a>] ?
cpuidle_idle_call+0x94/0xee
Feb 27 12:12:40 altar kernel: [  239.825916]  [<ffffffff8100fe97>] ?
cpu_idle+0xa2/0xda
Feb 27 12:12:40 altar kernel: [  239.825918]  [<ffffffff8151c140>] ?
early_idt_handler+0x0/0x71
Feb 27 12:12:40 altar kernel: [  239.825921]  [<ffffffff8151ccdd>] ?
start_kernel+0x3dc/0x3e8
Feb 27 12:12:40 altar kernel: [  239.825922]  [<ffffffff8151c3b7>] ?
x86_64_start_kernel+0xf9/0x106
Feb 27 12:12:40 altar kernel: [  239.825923] handlers:
Feb 27 12:12:40 altar kernel: [  239.826287] [<ffffffffa00a32b8>]
(e1000_intr+0x0/0xfc [e1000])
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.

Co myslite?
Vdaka.
J.
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