Re: KVM Guest mmap.c bug

2010-03-09 Thread Bruno Cesar Ribas
On Mon, Mar 08, 2010 at 03:49:01PM +0100, Andrea Arcangeli wrote: > On Mon, Mar 08, 2010 at 03:32:19PM +0200, Avi Kivity wrote: > > It looks unrelated to kvm, though of course random memory corruption > > cannot be ruled out. > > > > Is npt enabled on the host (cat /sys/module/kvm_amd/parameters/

Re: KVM Guest mmap.c bug

2010-03-08 Thread Andrea Arcangeli
On Mon, Mar 08, 2010 at 03:32:19PM +0200, Avi Kivity wrote: > It looks unrelated to kvm, though of course random memory corruption > cannot be ruled out. > > Is npt enabled on the host (cat /sys/module/kvm_amd/parameters/npt)? > > Andrea, any idea? Basically find_vma(vma->vm_mm, vma->vm_start)

Re: KVM Guest mmap.c bug

2010-03-08 Thread Avi Kivity
On 03/02/2010 10:25 PM, BRUNO CESAR RIBAS wrote: Hi, I run a bunch of virtual servers using KVM. And I a mmap.c bug on the guest machine. The virtual machines are "desktop servers" for Thin Clients. My host is running a 2.6.33 kernel and have 32GB of rami, opteron with amd-v. The guest is runn

KVM Guest mmap.c bug

2010-03-02 Thread BRUNO CESAR RIBAS
Hi, I run a bunch of virtual servers using KVM. And I a mmap.c bug on the guest machine. The virtual machines are "desktop servers" for Thin Clients. My host is running a 2.6.33 kernel and have 32GB of rami, opteron with amd-v. The guest is running 2.6.27.45 (tried 2.6.31.12, 2.6.32.9, 2.6.33),