Messages in this thread | | | Date | Wed, 16 Oct 2002 23:33:02 -0400 | From | Doug Ledford <> | Subject | 2.5.43 IO-APIC bug and spinlock deadlock |
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IO-APIC bug: regular kernel, UP, no IO-APIC or APIC on UP enabled, compile fails (does *everyone* run SMP or at least UP + APIC now?)
spinlock deadlock: run an smp kernel on a up machine. On mine here all I have to do is try to boot to multiuser mode, it won't make it through the startup scripts before it locks up by trying to reenter common_interrupt on the only CPU. Seems like an SMP kernel on UP hardware doesn't disable interrupts properly maybe? I get task lists via alt-sysreq when the machine should be hardlocked I think. Anyway, this is what has been tricking me into thinking I had an IDE problem. IDE is innocent, it's the core interrupt handling code.
Back to work on scsi stuff now that I have a decently running 2.5.43 system, I'll let someone else deal with these.
-- Doug Ledford <dledford@redhat.com> 919-754-3700 x44233 Red Hat, Inc. 1801 Varsity Dr. Raleigh, NC 27606
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