From: Doug Ledford <dledford@redhat.com>
To: linux-kernel@vger.kernel.org
Cc: Ingo Molnar <mingo@redhat.com>, linux-scsi@vger.kernel.org
Subject: 2.5.43 IO-APIC bug and spinlock deadlock
Date: Wed, 16 Oct 2002 23:33:02 -0400 [thread overview]
Message-ID: <20021017033302.GP8159@redhat.com> (raw)
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
next reply other threads:[~2002-10-17 3:33 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-10-17 3:33 Doug Ledford [this message]
2002-10-17 4:28 ` 2.5.43 IO-APIC bug and spinlock deadlock Doug Ledford
2002-10-17 4:40 ` Andrew Morton
2002-10-17 5:13 ` Doug Ledford
2002-10-17 8:29 ` Mikael Pettersson
2002-10-17 4:49 ` Zwane Mwaikambo
2002-10-18 19:39 ` Bill Davidsen
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