Re: [Xen-devel] [RFC] e1000: Don't save writes to ICS/ICR masked by IMS

2016-09-15 Thread Ed Swierk
On Thu, Sep 15, 2016 at 2:15 AM, Denis V. Lunev wrote: > On 09/13/2016 11:59 PM, Konrad Rzeszutek Wilk wrote: > > On Thu, Sep 01, 2016 at 10:57:48AM -0700, Ed Swierk wrote: > >> Windows 8, 10 and Server 2012 guests hang intermittently while booting > >> on Xen 4.5.3 with 1 vCPU

Re: [Xen-devel] [RFC] e1000: Don't save writes to ICS/ICR masked by IMS

2016-09-15 Thread Denis V. Lunev
On 09/13/2016 11:59 PM, Konrad Rzeszutek Wilk wrote: > On Thu, Sep 01, 2016 at 10:57:48AM -0700, Ed Swierk wrote: >> Windows 8, 10 and Server 2012 guests hang intermittently while booting >> on Xen 4.5.3 with 1 vCPU and 4 e1000 vNICs, shortly after the Windows >> logo appears and the little dots

Re: [Xen-devel] [RFC] e1000: Don't save writes to ICS/ICR masked by IMS

2016-09-13 Thread Konrad Rzeszutek Wilk
On Thu, Sep 01, 2016 at 10:57:48AM -0700, Ed Swierk wrote: > Windows 8, 10 and Server 2012 guests hang intermittently while booting > on Xen 4.5.3 with 1 vCPU and 4 e1000 vNICs, shortly after the Windows > logo appears and the little dots start spinning. > > Running strace on qemu shows its main

[Xen-devel] [RFC] e1000: Don't save writes to ICS/ICR masked by IMS

2016-09-01 Thread Ed Swierk
Windows 8, 10 and Server 2012 guests hang intermittently while booting on Xen 4.5.3 with 1 vCPU and 4 e1000 vNICs, shortly after the Windows logo appears and the little dots start spinning. Running strace on qemu shows its main thread doing the following every couple of milliseconds: