[Bug 196542] System stops booting with "ACPI APIC Table: <INTEL DENLOW>"
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Tue Jan 27 15:50:39 UTC 2015
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=196542
--- Comment #14 from John Baldwin <jhb at FreeBSD.org> ---
(In reply to Jonas Keidel from comment #12)
To be clear, does the machine hang at the image you provided? If so, it
appears to be hung in ipi_startup?
Can you instrument ipi_startup? The calls in there to lapic_ipi_wait(-1) can
potentially hang forever. One thing you can do is to change the '-1's to
1000000 and seeing if the machine boots. It seems that Linux does this (it
just gives up waiting if the ICR bit doesn't clear).
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