Ticket #7313 (closed defect: fixed)
4-CPU debian 5.0 guest gives: "BUG: soft lockup - CPU#[n] stuck for 61s - [procname:procid]"
|Reported by:||nickj||Owned by:|
Host is 64 bit Ubuntu 10.04, running VirtualBox 3.2.8. Guest is Debian 5.0, 64 bit.
Guest was set up with 1 CPU, but since my host has a Quad Intel processor, I decided to try increasing it to 4 CPUs on the guest. Running with 4 CPUs gave errors like "BUG: soft lockup - CPU#[n] stuck for 61s - [procname:procid]" on the guest's console (will attach screenshot of this shortly), which doesn't sound like it can be a good thing. I then ran unixbench on the guest, and whilst this was running, the guest hung, and had to be forcibly shutdown.
I then brought the number of CPUs down from 4 to 2, and re-ran unixbench. The "BUG: soft lockup" messages were gone, and the VirtualBox did not hang.
So, there seems to be a problem with 4 CPUs, at least for me, that causes "BUG: soft lockup - CPU#[n] stuck for 61s - [procname:procid]" errors, and that _possibly_ also causes freezing under some situations.
Changed 6 years ago by nickj
- attachment Screenshot-Bling (Debian 5.0) [Running] - Oracle VM VirtualBox.png added