9.0-RC1 error AE_NO_MEMORY (max_tasks not high enough?)

[Bruce Cran]

When booting 9.0-RC1 without setting debug.acpi.max_tasks, I get the error:

AcpiOsExecute: failed to enqueue task, consider increasing the 
debug.acpi.max_tasks tunable
ACPI Error: Method parse/execution failed [\_SB_.PCI0.HEC2.HSCI] (Node 
0xfffffe0003c9d5c0), AE_NO_MEMORY (20110527/psparse-560)
ACPI Error: Method parse/execution failed [\_GPE._L06] (Node 
0xfffffe0003c9d500), AE_NO_MEMORY (20110527/psparse-560)
ACPI Exception: AE_NO_MEMORY, while evaluating GPE method [_L06] 
(20110527/evgpe-606)
AcpiOsExecute: failed to enqueue task, consider increasing the 
debug.acpi.max_tasks tunable

Overriding debug.acpi.max_tasks to 2048 causes it to go away though.

-- 
Bruce Cran