Adding David and Jiang, they might have an idea whats going wrong. On Fri, Oct 17, 2014 at 05:17:16PM -0400, Dave Jones wrote: > Just hit this while fuzz-testing, (curiously, no graphics > related stuff was happening, X isn't even loaded on that box). > > dmar: DRHD: handling fault status reg 2 > dmar: DMAR:[DMA Write] Request device [00:02.0] fault addr 7ffffff000 > DMAR:[fault reason 05] PTE Write access is not set > > > 00:02:0 is.. > > 00:02.0 VGA compatible controller: Intel Corporation Xeon E3-1200 v3/4th > Gen Core Processor Integrated Graphics Controller (rev 06) (prog-if 00 > [VGA controller]) > > 00: 86 80 12 04 07 04 90 00 06 00 00 03 00 00 00 00 > 10: 04 00 00 c0 00 00 00 00 0c 00 00 b0 00 00 00 00 > 20: 01 30 00 00 00 00 00 00 00 00 00 00 86 80 12 22 > 30: 00 00 00 00 90 00 00 00 00 00 00 00 0b 01 00 00 > > > So then I rebooted, and noticed it spewed the exact same message on boot up too. > > I power cycled, and this time got > > [ 0.576231] dmar: Host address width 39 > [ 0.576336] dmar: DRHD base: 0x000000fed90000 flags: 0x0 > [ 0.576491] dmar: IOMMU 0: reg_base_addr fed90000 ver 1:0 cap c0000020660462 ecap f0101a > [ 0.576659] dmar: DRHD base: 0x000000fed91000 flags: 0x1 > [ 0.576793] dmar: IOMMU 1: reg_base_addr fed91000 ver 1:0 cap d2008020660462 ecap f010da > [ 0.576961] dmar: RMRR base: 0x000000a2a1f000 end: 0x000000a2a32fff > [ 0.577075] dmar: RMRR base: 0x000000ad800000 end: 0x000000af9fffff > [ 6.715745] DMAR: No ATSR found > [ 8.081845] [drm] DMAR active, disabling use of stolen memory > [ 9.927343] dmar: DRHD: handling fault status reg 2 > [ 9.928335] dmar: DMAR:[DMA Write] Request device [00:02.0] fault addr 3c11284000 > DMAR:[fault reason 05] PTE Write access is not set > [ 11.916211] dmar: DRHD: handling fault status reg 2 > [ 11.917105] dmar: DMAR:[DMA Write] Request device [00:02.0] fault addr 3c11284000 > DMAR:[fault reason 05] PTE Write access is not set > > > Same thing, different fault address. It seems to change every time I boot. > > > Looking in the logs, this started happening on the 15th. The first instance > was this during boot.. > > [ 9.917240] dmar: DRHD: handling fault status reg 2 > [ 9.918150] dmar: DMAR:[DMA Write] Request device [00:02.0] fault addr 7300000000 > [ 9.918150] DMAR:[fault reason 05] PTE Write access is not set > [ 9.919582] dmar: DMAR:[DMA Write] Request device [00:02.0] fault addr 7ffffff000 > [ 9.919582] DMAR:[fault reason 05] PTE Write access is not set > [ 10.157240] dmar: DRHD: handling fault status reg 3 > [ 10.158017] dmar: DMAR:[DMA Write] Request device [00:02.0] fault addr 3579736000 > [ 10.158017] DMAR:[fault reason 05] PTE Write access is not set > [ 11.926114] dmar: DRHD: handling fault status reg 3 > [ 11.927117] dmar: DMAR:[DMA Write] Request device [00:02.0] fault addr 7300000000 > [ 11.927117] DMAR:[fault reason 05] PTE Write access is not set > > That time, the 'reg 3' showed up. > > Dying hardware ? Or bug ? > > Dave > _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
