https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=211548
Bug ID: 211548
Summary: [mps] Activating X2Apic Mode in BIOS results in
"io_cmds_active is out of sync errors", won't boot
Product: Base System
Version: 11.0-BETA3
Hardware: amd64
OS: Any
Status: New
Severity: Affects Some People
Priority: ---
Component: kern
Assignee: freebsd-b...@freebsd.org
Reporter: b...@freebsd.org
CC: freebsd-amd64@FreeBSD.org
CC: freebsd-amd64@FreeBSD.org
I'm installing FreeBSD (tried both 11-CURRENT, BETA-3) on a Dell C6320. When I
activate X2Apic Mode in the processor settings in the BIOS and boot FreeBSD, I
get the following error:
http://people.freebsd.org/~bcr/mps0_error.jpg
Deactivating the X2Apic option in the BIOS lets FreeBSD boot normally and the
mps0 controller can use the attached disks normally. I have several (12 in
total) systems like these, all exhibit the same behaviour.
I can provide more information on firmware versions and other details upon
request.
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