Date: Fri, 25 Jun 2004 12:30:31 -0600 From: Scott Long <scottl@freebsd.org> To: Gerrit Nagelhout <gnagelhout@sandvine.com> Cc: Julian Elischer <julian@elischer.org> Subject: Re: STI, HLT in acpi_cpu_idle_c1 Message-ID: <40DC6F47.1020506@freebsd.org> In-Reply-To: <FE045D4D9F7AED4CBFF1B3B813C85337054EC4D1@mail.sandvine.com> References: <FE045D4D9F7AED4CBFF1B3B813C85337054EC4D1@mail.sandvine.com>
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Gerrit Nagelhout wrote: > Scott Long wrote: > >>This likely means that you're no longer getting any interrupts at all. >>Btw, is the aac driver running it MPSAFE or FAST mode? I'm >>not sure if >>changing it to MPSAFE mode will make a difference, and it >>certainly will >>change the timings in our system. >> >>Scott >> > > > Looks like it's running in FAST mode. What will change by running it in > MPSAFE mode? In FAST mode, the interrupt handler is directly dispatched when the interrupt comes in. In MPSAFE mode, it runs in an ithread. Scott
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