Date: Wed, 1 Oct 2003 14:04:14 -0400 From: Michael Marchetti <mmarchetti@sandvine.com> To: "'freebsd-stable@freebsd.org'" <freebsd-stable@freebsd.org> Subject: 4.7 SMP lockup Message-ID: <FE045D4D9F7AED4CBFF1B3B813C8533701ED5E66@mail.sandvine.com>
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Hi, I'm seeing a problem with 4.7 where, very rarely, the system seems to "lockup". No panic is given. I was able to track it down to all processors were halted (in the idle loop) since machdep.cpu_idle_hlt=1. The system is a 2 physical XEON procs with hyperthreading enabled. The system was behaving as though the 8254 system clock was not going off. The only thing I can think of is some kind of lapic problem where the interrupt is not being delivered to the CPU. Any others encounter such a problem? thanks, mike.
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