Re: [Intel-gfx] [PATCH i-g-t v3] tests/drv_hangman: test for acthd increasing through invalid VM space

2016-02-26 Thread Mika Kuoppala
daniele.ceraolospu...@intel.com writes: > From: Daniele Ceraolo Spurio > > The hangcheck logic will not flag an hang if acthd keeps increasing. > However, if a malformed batch jumps to an invalid offset in the ppgtt it > can potentially continue executing through

[Intel-gfx] [PATCH i-g-t v3] tests/drv_hangman: test for acthd increasing through invalid VM space

2016-02-25 Thread daniele . ceraolospurio
From: Daniele Ceraolo Spurio The hangcheck logic will not flag an hang if acthd keeps increasing. However, if a malformed batch jumps to an invalid offset in the ppgtt it can potentially continue executing through the whole address space without triggering the