Re: HMM related use-after-free with amdgpu

2019-07-17 Thread Jason Gunthorpe
On Tue, Jul 16, 2019 at 10:10:46PM +, Kuehling, Felix wrote: > On 2019-07-16 1:04 p.m., Michel Dänzer wrote: > > On 2019-07-16 6:35 p.m., Jason Gunthorpe wrote: > >> On Tue, Jul 16, 2019 at 06:31:09PM +0200, Michel Dänzer wrote: > >>> On 2019-07-15 7:25 p.m., Jason Gunthorpe wrote: > On

Re: HMM related use-after-free with amdgpu

2019-07-17 Thread Michel Dänzer
On 2019-07-17 12:10 a.m., Kuehling, Felix wrote: > On 2019-07-16 1:04 p.m., Michel Dänzer wrote: >> On 2019-07-16 6:35 p.m., Jason Gunthorpe wrote: >>> On Tue, Jul 16, 2019 at 06:31:09PM +0200, Michel Dänzer wrote: On 2019-07-15 7:25 p.m., Jason Gunthorpe wrote: > On Mon, Jul 15, 2019 at

Re: HMM related use-after-free with amdgpu

2019-07-16 Thread Kuehling, Felix
On 2019-07-16 1:04 p.m., Michel Dänzer wrote: > On 2019-07-16 6:35 p.m., Jason Gunthorpe wrote: >> On Tue, Jul 16, 2019 at 06:31:09PM +0200, Michel Dänzer wrote: >>> On 2019-07-15 7:25 p.m., Jason Gunthorpe wrote: On Mon, Jul 15, 2019 at 06:51:06PM +0200, Michel Dänzer wrote: > With a

Re: HMM related use-after-free with amdgpu

2019-07-16 Thread Jason Gunthorpe
On Tue, Jul 16, 2019 at 07:04:52PM +0200, Michel Dänzer wrote: > On 2019-07-16 6:35 p.m., Jason Gunthorpe wrote: > > On Tue, Jul 16, 2019 at 06:31:09PM +0200, Michel Dänzer wrote: > >> On 2019-07-15 7:25 p.m., Jason Gunthorpe wrote: > >>> On Mon, Jul 15, 2019 at 06:51:06PM +0200, Michel Dänzer

Re: HMM related use-after-free with amdgpu

2019-07-16 Thread Jason Gunthorpe
On Tue, Jul 16, 2019 at 06:31:09PM +0200, Michel Dänzer wrote: > On 2019-07-15 7:25 p.m., Jason Gunthorpe wrote: > > On Mon, Jul 15, 2019 at 06:51:06PM +0200, Michel Dänzer wrote: > >> > >> With a KASAN enabled kernel built from amd-staging-drm-next, the > >> attached use-after-free is pretty

Re: HMM related use-after-free with amdgpu

2019-07-16 Thread Michel Dänzer
On 2019-07-15 7:25 p.m., Jason Gunthorpe wrote: > On Mon, Jul 15, 2019 at 06:51:06PM +0200, Michel Dänzer wrote: >> >> With a KASAN enabled kernel built from amd-staging-drm-next, the >> attached use-after-free is pretty reliably detected during a piglit gpu run. > > Does this branch you are

Re: HMM related use-after-free with amdgpu

2019-07-15 Thread Jason Gunthorpe
On Mon, Jul 15, 2019 at 06:51:06PM +0200, Michel Dänzer wrote: > > With a KASAN enabled kernel built from amd-staging-drm-next, the > attached use-after-free is pretty reliably detected during a piglit gpu run. Does this branch you are testing have the hmm.git merged? I think from the name it

HMM related use-after-free with amdgpu

2019-07-15 Thread Michel Dänzer
With a KASAN enabled kernel built from amd-staging-drm-next, the attached use-after-free is pretty reliably detected during a piglit gpu run. Any ideas? P.S. With my standard kernels without KASAN (currently 5.2.y + drm-next changes for 5.3), I'm having trouble lately completing a piglit run,