Re: [PATCH] x86/mm/pat: Fix BUG_ON in mmap_mem on QEMU/i386

2016-04-08 Thread Toshi Kani
On Tue, 2016-04-05 at 09:24 -0600, Toshi Kani wrote: > +xen-devl > > On Tue, 2016-04-05 at 13:09 +0200, Borislav Petkov wrote: > > On Fri, Apr 01, 2016 at 04:19:45PM -0600, Toshi Kani wrote: > > >  : > > > > > > When the system does not have much memory, 'high_memory' points to > > > > What does

Re: [PATCH] x86/mm/pat: Fix BUG_ON in mmap_mem on QEMU/i386

2016-04-05 Thread Toshi Kani
+xen-devl On Tue, 2016-04-05 at 13:09 +0200, Borislav Petkov wrote: > On Fri, Apr 01, 2016 at 04:19:45PM -0600, Toshi Kani wrote: > > > > The following BUG_ON error was reported on QEMU/i386: > > > >   kernel BUG at arch/x86/mm/physaddr.c:79! > >   Call Trace: > >   phys_mem_access_prot_allowed

Re: [PATCH] x86/mm/pat: Fix BUG_ON in mmap_mem on QEMU/i386

2016-04-05 Thread Borislav Petkov
On Fri, Apr 01, 2016 at 04:19:45PM -0600, Toshi Kani wrote: > The following BUG_ON error was reported on QEMU/i386: > > kernel BUG at arch/x86/mm/physaddr.c:79! > Call Trace: > phys_mem_access_prot_allowed > mmap_mem > ? mmap_region > mmap_region > do_mmap > vm_mmap_pgoff > SyS_m