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SubjectRe: 3.13 hangs when I tried to start a KVM at a 32 bit stable Gentoo
On 01/21/2014 08:38 AM, Toralf Förster wrote:
> Jan 21 17:18:57 n22 kernel: INFO: rcu_sched self-detected stall on CPU { 2} (t=60001 jiffies g=18494 c=18493 q=183951)
> Jan 21 17:18:57 n22 kernel: sending NMI to all CPUs:
> Jan 21 17:18:57 n22 kernel: NMI backtrace for cpu 2
> Jan 21 17:18:57 n22 kernel: CPU: 2 PID: 6779 Comm: qemu-system-x86 Not tainted 3.13.0 #3
> Jan 21 17:18:57 n22 kernel: Hardware name: LENOVO 4180F65/4180F65, BIOS 83ET75WW (1.45 ) 05/10/2013
> Jan 21 17:18:57 n22 kernel: task: e921c370 ti: e5f36000 task.ti: e5f36000

I'm seeing a very similar hang with an ubuntu guest and a custom kernel.
I'm on commit 0dc3fd0249a, and it's 100% reproducible every time I run KVM.

Cc-ing a few more folks...
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