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Date: Tue, 13 Jan 2015 21:13:05 +0100
From: Gerhard Wiesinger <lists@wiesinger.com>
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Subject: Re: [Qemu-devel] Fedora FC21 - Bug: 100% CPU and hangs in
 gettimeofday(&tp, NULL); forever
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To: Paolo Bonzini <pbonzini@redhat.com>, qemu-devel@nongnu.org

On 12.01.2015 12:41, Gerhard Wiesinger wrote:
> On 08.01.2015 23:28, Gerhard Wiesinger wrote:
>>
>> I'll keep you up to date in the next days whether it happens again or 
>> not.
>
> With qemu-kvm 2.2.0 release from the above repository the 100% usage 
> didn't happen so far (although I had to reboot after kernel update).

It happens also with qemu-kvm 2.2.0 on another VM where also PostgreSQL 
is running:
(gdb) bt
#0  0x00007fff9a1feff4 in gettimeofday ()
#1  0x00000000006d425e in GetCurrentTimestamp () at timestamp.c:1274

What we know:
OK : F20: 3.17.6-200.fc20.x86_64 on guest/host, 
qemu-kvm-1.6.2-10.fc20.x86_64 on host
NOK: F21: 3.17.7-300.fc21.x86_64 on guest/host, 
qemu-kvm-2.1.2-7.fc21.x86_64 on host
NOK: F21: 3.17.8-300.fc21.x86_64 on guest/host, 
qemu-kvm-2.2.0-1.fc21.x86_64 on host

No one less can reproduce or has similar problems?
Any further ideas?

BTW: I'm running ntp in the following manner: internet <=> ntp server in 
VM <=> ntp client on KVM host (firewall runs in KVM)

Ciao,
Gerhard