Opened 14 years ago

Closed 14 years ago

#4387 closed defect (fixed)

SMP broken in VB 3.0

Reported by: nbi Owned by:
Component: other Version: VirtualBox 3.0.0
Keywords: Cc:
Guest type: Windows Host type: Linux


Windows XP 32 bit guest with 4 CPUs eventually crashes. There are no messages in /var/log/messages to indicate what the problem might be. If the guest is reconfigured for 1 CPU the problem goes away. HW is an Asus P6T Deluxe with i7 920. Virtualization is enabled in motherboard BIOS. OS is Debian Lenny 64 bit.

Change History (2)

comment:1 by nbi, 14 years ago

Additional observations: XP is choppy, especially audio before crash occurs.

Tried a few additional things without success:

  1. Reduced number of guest CPUs to 2 (from 4). No benefit.
  2. Used 'taskset' to bind vbox session to 2 specific CPUs to reduce scheduler's CPU switching. No benefit.

comment:2 by Frank Mehnert, 14 years ago

Resolution: fixed
Status: newclosed

Should be fixed or at least notably improved with 3.0.2.

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