* occasional kernel hang inside apic_wait_icr_idle()...
@ 2002-07-17 23:05 Jarrett L. Redd
0 siblings, 0 replies; only message in thread
From: Jarrett L. Redd @ 2002-07-17 23:05 UTC (permalink / raw)
To: linux-smp
Hey guys/gals... I have a custom hardware board that seems to be running
fine with 2.4.17 in uniprocessor IOAPIC mode (we are receiving
interrupts), but occasionally we hang during boot inside sync_Arb_IDs()
when it calls apic_wait_icr_idle(). We are using the serverworks HE
chipset with 3 embedded IOAPICS, and what I see when we hang is that the
APIC ICR register is 0xcd624 (indeed the BUSY bit is set forever).
Unfortunately, I do not know a whole lot about APICs/IOAPICs/etc. The
documentation we have (poor at best) says this bit gets set when there
is a transaction pending. I'm not sure exactly what this means. Does
anyone out there have any idea what might be causing this? Is it a
spurious interrupt during boot perhaps? Thanks VERY MUCH in advance.
-Jarrett Redd
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2002-07-17 23:05 occasional kernel hang inside apic_wait_icr_idle() Jarrett L. Redd
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