Bug 15242

Summary: Kernel won't boot with acpi in virtualbox
Product: ACPI Reporter: Martin Erik Werner (martinerikwerner)
Component: Config-OtherAssignee: acpi_config-other
Severity: normal CC: acpi-bugzilla, maciej.rutecki, martinerikwerner, rjw
Priority: P1    
Hardware: All   
OS: Linux   
Kernel Version: Tree: Mainline
Regression: Yes
Bug Depends on:    
Bug Blocks: 14885    

Description Martin Erik Werner 2010-02-06 23:02:36 UTC
Original bug reported on launchpad: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/510571

Kernels past a specific version won't boot along with acpi in virtualbox

Boot hangs at either "Checking 'hlt' instruction... OK."
OR "SMP alternatives: switching to UP code"
(at which point virtualbox uses close to 100% cpu also)

Booting with the acpi=off flag, or disabling acpi in virtualbox allows normal boot.

version 2.6.32-10.14 (ubuntu)
based on, works fine

version 2.6.32-11-15 (ubuntu)
based on
is the first to exhibit the issue

along with later
version 2.6.33-999.201001191335 (ubuntu mainline daily)
based on long<v2.6.33-rc4-399-g24bc734>
commit 24bc7347da73a9ed3383056c3d0f28c0e361621e

version 2.6.33-999.201002061003 (ubuntu mainline daily)
based on: long<v2.6.33-rc6-228-g56dca4c>
commit 56dca4ceb7b39aa4173aa1cb822c860ced2be1ec

...which fails similarly.
Comment 1 Martin Erik Werner 2010-02-10 23:00:16 UTC
According to comments on the launchpad bug, this seems to be a problem in virtualbox rather. Closing.