On 09/06/16 at 11:13am, Joerg Roedel wrote: > On Mon, Sep 05, 2016 at 06:11:58PM +0800, Baoquan He wrote: > > On 09/05/16 at 11:59am, Joerg Roedel wrote: > > > > This happened on 4.8.0-rc5 > > > > > > > > [ +0.006771] AMD-Vi: Event logged [IO_PAGE_FAULT device=00:14.4 > > > > domain=0x0009 address=0x0000000000001000 flags=0x0000] > > > > [ +0.010593] AMD-Vi: Event logged [IO_PAGE_FAULT device=00:14.4 > > > > domain=0x0009 address=0x0000000000001040 flags=0x0000] > > > > [ +0.010596] AMD-Vi: Event logged [IO_PAGE_FAULT device=00:14.4 > > > > domain=0x0009 address=0x0000000000001080 flags=0x0000] > > > > [ +0.010597] AMD-Vi: Event logged [IO_PAGE_FAULT device=00:14.4 > > > > domain=0x0009 address=0x00000000000010c0 flags=0x0000] > > > > [ +0.010592] AMD-Vi: Event logged [IO_PAGE_FAULT device=00:14.4 > > > > domain=0x0009 address=0x0000000000001100 flags=0x0000] > > > > [ +0.010592] AMD-Vi: Event logged [IO_PAGE_FAULT device=00:14.4 > > > > domain=0x0009 address=0x0000000000001140 flags=0x0000] > > > > > > This is probably a radeon driver issue, the address looks like its > > > handed out by the IOMMU driver, so probably a use-after-free bug. I also > > > see those GPU related faults from time to time. The system usually boots > > > fine anyway. Does boot complete on that system? > > > > Yes, except for this message, system is not impacted. > > Hmm, on the other hand, the AMD-Vi driver in 4.8 uses the generic IOVA > allocator, so the addresses it hands out should be closer to 4GB. > Anyway, this is probably a bug/problem in the GPU driver.
Thanks for telling. So should I raise this issue to radeon driver mailist list? They probably they have some clues. Thanks Baoquan
