Re: BUG: unable to handle kernel paging request with v4.3-rc4

2015-10-09 Thread Joerg Roedel
On Fri, Oct 09, 2015 at 09:30:40AM -0600, Alex Williamson wrote: > I have not seen this one yet. There literally have been no changes for > vfio in 4.3, so if this is new, it may be collateral from changes > elsewhere. 32bit devices really shouldn't make any difference to vfio, > I'll see if I ca

Re: BUG: unable to handle kernel paging request with v4.3-rc4

2015-10-09 Thread Alex Williamson
On Fri, 2015-10-09 at 16:58 +0200, Joerg Roedel wrote: > Hi Alex, > > while playing around with attaching a 32bit PCI device to a guest via > VFIO I triggered this oops: > > [ 192.289917] kernel tried to execute NX-protected page - exploit attempt? > (uid: 0) > [ 192.298245] BUG: unable to han