FreeBSD 11.0-BETA2 won't boot on an Acer Aspire 5560

[Peter Jeremy]

I'm trying to boot the 11.0-BETA2/amd64 memory stick image and the
kernel panics: (Following copied by hand):

ACPI APIC Table: <ACRSYS ACRPRDCT>
...
acpi0: <ACRSYS ACRPRDCT> on motherboard
ACPI Error: Hardware did not change modes (20160527/hwacpi-160)
ACPI Error: Could not transition to APCI mode (20160527/evxfevnt-105)
ACPI Warning: AcpiEnable failed (20160527/utxfinit-184)
acpi0: Could not enable ACPI: AE_NO_HARDWARE_RESPONSE
device_attach: acpi0 attach returned 6

Followed by a NULL dereference panic at nexus_acpi_attach+0x89

The system boots a 10.0-RELEASE/amd64 memstick (the only other image I
have conveniently to date) without problem.

[Kubilay Kocak]

Post by Peter Jeremy
I'm trying to boot the 11.0-BETA2/amd64 memory stick image and the
ACPI APIC Table: <ACRSYS ACRPRDCT>
...
acpi0: <ACRSYS ACRPRDCT> on motherboard
ACPI Error: Hardware did not change modes (20160527/hwacpi-160)
ACPI Error: Could not transition to APCI mode (20160527/evxfevnt-105)
ACPI Warning: AcpiEnable failed (20160527/utxfinit-184)
acpi0: Could not enable ACPI: AE_NO_HARDWARE_RESPONSE
device_attach: acpi0 attach returned 6
Followed by a NULL dereference panic at nexus_acpi_attach+0x89
The system boots a 10.0-RELEASE/amd64 memstick (the only other image I
have conveniently to date) without problem.

Thank you for the report Peter

Did it boot prior to 11.0-BETA2? ie; is it a regression?

Please report a bug in bugzilla with version: 11.0-BETA2 and cc
***@FreeBSD.org

If it's possible to obtain a backtrace of the panic, please include it
as an attachment:

https://www.freebsd.org/doc/en_US.ISO8859-1/books/developers-handbook/kerneldebug.html

Setting debug.debugger_on_panic=1 in loader may help get it to the debugger.